diff options
Diffstat (limited to 'time.c')
| -rw-r--r-- | time.c | 6571 |
1 files changed, 5240 insertions, 1331 deletions
@@ -3,209 +3,2952 @@ time.c - $Author$ - $Date$ created at: Tue Dec 28 14:31:59 JST 1993 Copyright (C) 1993-2007 Yukihiro Matsumoto **********************************************************************/ -#include "ruby/ruby.h" -#include <sys/types.h> +#define _DEFAULT_SOURCE +#define _BSD_SOURCE +#include "ruby/internal/config.h" + +#include <errno.h> +#include <float.h> +#include <math.h> #include <time.h> +#include <sys/types.h> #ifdef HAVE_UNISTD_H -#include <unistd.h> +# include <unistd.h> #endif -#include <math.h> +#ifdef HAVE_STRINGS_H +# include <strings.h> +#endif + +#if defined(HAVE_SYS_TIME_H) +# include <sys/time.h> +#endif + +#include "id.h" +#include "internal.h" +#include "internal/array.h" +#include "internal/hash.h" +#include "internal/compar.h" +#include "internal/numeric.h" +#include "internal/rational.h" +#include "internal/string.h" +#include "internal/time.h" +#include "internal/variable.h" +#include "ruby/encoding.h" +#include "ruby/util.h" +#include "timev.h" + +#if defined(_WIN32) +# include <timezoneapi.h> /* DYNAMIC_TIME_ZONE_INFORMATION */ +#endif + +#include "builtin.h" + +static ID id_submicro, id_nano_num, id_nano_den, id_offset, id_zone; +static ID id_nanosecond, id_microsecond, id_millisecond, id_nsec, id_usec; +static ID id_local_to_utc, id_utc_to_local, id_find_timezone; +static ID id_year, id_mon, id_mday, id_hour, id_min, id_sec, id_isdst; +static VALUE str_utc, str_empty; + +// used by deconstruct_keys +static VALUE sym_year, sym_month, sym_day, sym_yday, sym_wday; +static VALUE sym_hour, sym_min, sym_sec, sym_subsec, sym_dst, sym_zone; + +#define id_quo idQuo +#define id_div idDiv +#define id_divmod idDivmod +#define id_name idName +#define UTC_ZONE Qundef + +#define NDIV(x,y) (-(-((x)+1)/(y))-1) +#define NMOD(x,y) ((y)-(-((x)+1)%(y))-1) +#define DIV(n,d) ((n)<0 ? NDIV((n),(d)) : (n)/(d)) +#define MOD(n,d) ((n)<0 ? NMOD((n),(d)) : (n)%(d)) +#define VTM_WDAY_INITVAL (7) +#define VTM_ISDST_INITVAL (3) + +static int +eq(VALUE x, VALUE y) +{ + if (FIXNUM_P(x) && FIXNUM_P(y)) { + return x == y; + } + return RTEST(rb_funcall(x, idEq, 1, y)); +} + +static int +cmp(VALUE x, VALUE y) +{ + if (FIXNUM_P(x) && FIXNUM_P(y)) { + if ((long)x < (long)y) + return -1; + if ((long)x > (long)y) + return 1; + return 0; + } + if (RB_BIGNUM_TYPE_P(x)) return FIX2INT(rb_big_cmp(x, y)); + return rb_cmpint(rb_funcall(x, idCmp, 1, y), x, y); +} + +#define ne(x,y) (!eq((x),(y))) +#define lt(x,y) (cmp((x),(y)) < 0) +#define gt(x,y) (cmp((x),(y)) > 0) +#define le(x,y) (cmp((x),(y)) <= 0) +#define ge(x,y) (cmp((x),(y)) >= 0) + +static VALUE +addv(VALUE x, VALUE y) +{ + if (FIXNUM_P(x) && FIXNUM_P(y)) { + return LONG2NUM(FIX2LONG(x) + FIX2LONG(y)); + } + if (RB_BIGNUM_TYPE_P(x)) return rb_big_plus(x, y); + return rb_funcall(x, '+', 1, y); +} + +static VALUE +subv(VALUE x, VALUE y) +{ + if (FIXNUM_P(x) && FIXNUM_P(y)) { + return LONG2NUM(FIX2LONG(x) - FIX2LONG(y)); + } + if (RB_BIGNUM_TYPE_P(x)) return rb_big_minus(x, y); + return rb_funcall(x, '-', 1, y); +} + +static VALUE +mulv(VALUE x, VALUE y) +{ + if (FIXNUM_P(x) && FIXNUM_P(y)) { + return rb_fix_mul_fix(x, y); + } + if (RB_BIGNUM_TYPE_P(x)) + return rb_big_mul(x, y); + return rb_funcall(x, '*', 1, y); +} + +static VALUE +divv(VALUE x, VALUE y) +{ + if (FIXNUM_P(x) && FIXNUM_P(y)) { + return rb_fix_div_fix(x, y); + } + if (RB_BIGNUM_TYPE_P(x)) + return rb_big_div(x, y); + return rb_funcall(x, id_div, 1, y); +} + +static VALUE +modv(VALUE x, VALUE y) +{ + if (FIXNUM_P(y)) { + if (FIX2LONG(y) == 0) rb_num_zerodiv(); + if (FIXNUM_P(x)) return rb_fix_mod_fix(x, y); + } + if (RB_BIGNUM_TYPE_P(x)) return rb_big_modulo(x, y); + return rb_funcall(x, '%', 1, y); +} + +#define neg(x) (subv(INT2FIX(0), (x))) + +static VALUE +quor(VALUE x, VALUE y) +{ + if (FIXNUM_P(x) && FIXNUM_P(y)) { + long a, b, c; + a = FIX2LONG(x); + b = FIX2LONG(y); + if (b == 0) rb_num_zerodiv(); + if (a == FIXNUM_MIN && b == -1) return LONG2NUM(-a); + c = a / b; + if (c * b == a) { + return LONG2FIX(c); + } + } + return rb_numeric_quo(x, y); +} + +static VALUE +quov(VALUE x, VALUE y) +{ + VALUE ret = quor(x, y); + if (RB_TYPE_P(ret, T_RATIONAL) && + RRATIONAL(ret)->den == INT2FIX(1)) { + ret = RRATIONAL(ret)->num; + } + return ret; +} + +#define mulquov(x,y,z) (((y) == (z)) ? (x) : quov(mulv((x),(y)),(z))) + +static void +divmodv(VALUE n, VALUE d, VALUE *q, VALUE *r) +{ + VALUE tmp, ary; + if (FIXNUM_P(d)) { + if (FIX2LONG(d) == 0) rb_num_zerodiv(); + if (FIXNUM_P(n)) { + rb_fix_divmod_fix(n, d, q, r); + return; + } + } + tmp = rb_funcall(n, id_divmod, 1, d); + ary = rb_check_array_type(tmp); + if (NIL_P(ary)) { + rb_raise(rb_eTypeError, "unexpected divmod result: into %"PRIsVALUE, + rb_obj_class(tmp)); + } + *q = rb_ary_entry(ary, 0); + *r = rb_ary_entry(ary, 1); +} + +#if SIZEOF_LONG == 8 +# define INT64toNUM(x) LONG2NUM(x) +#elif defined(HAVE_LONG_LONG) && SIZEOF_LONG_LONG == 8 +# define INT64toNUM(x) LL2NUM(x) +#endif + +#if defined(HAVE_UINT64_T) && SIZEOF_LONG*2 <= SIZEOF_UINT64_T + typedef uint64_t uwideint_t; + typedef int64_t wideint_t; + typedef uint64_t WIDEVALUE; + typedef int64_t SIGNED_WIDEVALUE; +# define WIDEVALUE_IS_WIDER 1 +# define UWIDEINT_MAX UINT64_MAX +# define WIDEINT_MAX INT64_MAX +# define WIDEINT_MIN INT64_MIN +# define FIXWINT_P(tv) ((tv) & 1) +# define FIXWVtoINT64(tv) RSHIFT((SIGNED_WIDEVALUE)(tv), 1) +# define INT64toFIXWV(wi) ((WIDEVALUE)((SIGNED_WIDEVALUE)(wi) << 1 | FIXNUM_FLAG)) +# define FIXWV_MAX (((int64_t)1 << 62) - 1) +# define FIXWV_MIN (-((int64_t)1 << 62)) +# define FIXWVABLE(wi) (POSFIXWVABLE(wi) && NEGFIXWVABLE(wi)) +# define WINT2FIXWV(i) WIDEVAL_WRAP(INT64toFIXWV(i)) +# define FIXWV2WINT(w) FIXWVtoINT64(WIDEVAL_GET(w)) +#else + typedef unsigned long uwideint_t; + typedef long wideint_t; + typedef VALUE WIDEVALUE; + typedef SIGNED_VALUE SIGNED_WIDEVALUE; +# define WIDEVALUE_IS_WIDER 0 +# define UWIDEINT_MAX ULONG_MAX +# define WIDEINT_MAX LONG_MAX +# define WIDEINT_MIN LONG_MIN +# define FIXWINT_P(v) FIXNUM_P(v) +# define FIXWV_MAX FIXNUM_MAX +# define FIXWV_MIN FIXNUM_MIN +# define FIXWVABLE(i) FIXABLE(i) +# define WINT2FIXWV(i) WIDEVAL_WRAP(LONG2FIX(i)) +# define FIXWV2WINT(w) FIX2LONG(WIDEVAL_GET(w)) +#endif + +#define SIZEOF_WIDEINT SIZEOF_INT64_T +#define POSFIXWVABLE(wi) ((wi) < FIXWV_MAX+1) +#define NEGFIXWVABLE(wi) ((wi) >= FIXWV_MIN) +#define FIXWV_P(w) FIXWINT_P(WIDEVAL_GET(w)) +#define MUL_OVERFLOW_FIXWV_P(a, b) MUL_OVERFLOW_SIGNED_INTEGER_P(a, b, FIXWV_MIN, FIXWV_MAX) + +/* #define STRUCT_WIDEVAL */ +#ifdef STRUCT_WIDEVAL + /* for type checking */ + typedef struct { + WIDEVALUE value; + } wideval_t; + static inline wideval_t WIDEVAL_WRAP(WIDEVALUE v) { wideval_t w = { v }; return w; } +# define WIDEVAL_GET(w) ((w).value) +#else + typedef WIDEVALUE wideval_t; +# define WIDEVAL_WRAP(v) (v) +# define WIDEVAL_GET(w) (w) +#endif + +#if WIDEVALUE_IS_WIDER + static inline wideval_t + wint2wv(wideint_t wi) + { + if (FIXWVABLE(wi)) + return WINT2FIXWV(wi); + else + return WIDEVAL_WRAP(INT64toNUM(wi)); + } +# define WINT2WV(wi) wint2wv(wi) +#else +# define WINT2WV(wi) WIDEVAL_WRAP(LONG2NUM(wi)) +#endif + +static inline VALUE +w2v(wideval_t w) +{ +#if WIDEVALUE_IS_WIDER + if (FIXWV_P(w)) + return INT64toNUM(FIXWV2WINT(w)); + return (VALUE)WIDEVAL_GET(w); +#else + return WIDEVAL_GET(w); +#endif +} + +#if WIDEVALUE_IS_WIDER +static wideval_t +v2w_bignum(VALUE v) +{ + int sign; + uwideint_t u; + sign = rb_integer_pack(v, &u, 1, sizeof(u), 0, + INTEGER_PACK_NATIVE_BYTE_ORDER); + if (sign == 0) + return WINT2FIXWV(0); + else if (sign == -1) { + if (u <= -FIXWV_MIN) + return WINT2FIXWV(-(wideint_t)u); + } + else if (sign == +1) { + if (u <= FIXWV_MAX) + return WINT2FIXWV((wideint_t)u); + } + return WIDEVAL_WRAP(v); +} +#endif + +static inline wideval_t +v2w(VALUE v) +{ + if (RB_TYPE_P(v, T_RATIONAL)) { + if (RRATIONAL(v)->den != LONG2FIX(1)) + return WIDEVAL_WRAP(v); + v = RRATIONAL(v)->num; + } +#if WIDEVALUE_IS_WIDER + if (FIXNUM_P(v)) { + return WIDEVAL_WRAP((WIDEVALUE)(SIGNED_WIDEVALUE)(long)v); + } + else if (RB_BIGNUM_TYPE_P(v) && + rb_absint_size(v, NULL) <= sizeof(WIDEVALUE)) { + return v2w_bignum(v); + } +#endif + return WIDEVAL_WRAP(v); +} + +#define NUM2WV(v) v2w(rb_Integer(v)) + +static int +weq(wideval_t wx, wideval_t wy) +{ +#if WIDEVALUE_IS_WIDER + if (FIXWV_P(wx) && FIXWV_P(wy)) { + return WIDEVAL_GET(wx) == WIDEVAL_GET(wy); + } + return RTEST(rb_funcall(w2v(wx), idEq, 1, w2v(wy))); +#else + return eq(WIDEVAL_GET(wx), WIDEVAL_GET(wy)); +#endif +} + +static int +wcmp(wideval_t wx, wideval_t wy) +{ + VALUE x, y; +#if WIDEVALUE_IS_WIDER + if (FIXWV_P(wx) && FIXWV_P(wy)) { + wideint_t a, b; + a = FIXWV2WINT(wx); + b = FIXWV2WINT(wy); + if (a < b) + return -1; + if (a > b) + return 1; + return 0; + } +#endif + x = w2v(wx); + y = w2v(wy); + return cmp(x, y); +} + +#define wne(x,y) (!weq((x),(y))) +#define wlt(x,y) (wcmp((x),(y)) < 0) +#define wgt(x,y) (wcmp((x),(y)) > 0) +#define wle(x,y) (wcmp((x),(y)) <= 0) +#define wge(x,y) (wcmp((x),(y)) >= 0) + +static wideval_t +wadd(wideval_t wx, wideval_t wy) +{ +#if WIDEVALUE_IS_WIDER + if (FIXWV_P(wx) && FIXWV_P(wy)) { + wideint_t r = FIXWV2WINT(wx) + FIXWV2WINT(wy); + return WINT2WV(r); + } +#endif + return v2w(addv(w2v(wx), w2v(wy))); +} + +static wideval_t +wsub(wideval_t wx, wideval_t wy) +{ +#if WIDEVALUE_IS_WIDER + if (FIXWV_P(wx) && FIXWV_P(wy)) { + wideint_t r = FIXWV2WINT(wx) - FIXWV2WINT(wy); + return WINT2WV(r); + } +#endif + return v2w(subv(w2v(wx), w2v(wy))); +} + +static wideval_t +wmul(wideval_t wx, wideval_t wy) +{ +#if WIDEVALUE_IS_WIDER + if (FIXWV_P(wx) && FIXWV_P(wy)) { + if (!MUL_OVERFLOW_FIXWV_P(FIXWV2WINT(wx), FIXWV2WINT(wy))) + return WINT2WV(FIXWV2WINT(wx) * FIXWV2WINT(wy)); + } +#endif + return v2w(mulv(w2v(wx), w2v(wy))); +} + +static wideval_t +wquo(wideval_t wx, wideval_t wy) +{ +#if WIDEVALUE_IS_WIDER + if (FIXWV_P(wx) && FIXWV_P(wy)) { + wideint_t a, b, c; + a = FIXWV2WINT(wx); + b = FIXWV2WINT(wy); + if (b == 0) rb_num_zerodiv(); + c = a / b; + if (c * b == a) { + return WINT2WV(c); + } + } +#endif + return v2w(quov(w2v(wx), w2v(wy))); +} + +#define wmulquo(x,y,z) ((WIDEVAL_GET(y) == WIDEVAL_GET(z)) ? (x) : wquo(wmul((x),(y)),(z))) +#define wmulquoll(x,y,z) (((y) == (z)) ? (x) : wquo(wmul((x),WINT2WV(y)),WINT2WV(z))) + +#if WIDEVALUE_IS_WIDER +static int +wdivmod0(wideval_t wn, wideval_t wd, wideval_t *wq, wideval_t *wr) +{ + if (FIXWV_P(wn) && FIXWV_P(wd)) { + wideint_t n, d, q, r; + d = FIXWV2WINT(wd); + if (d == 0) rb_num_zerodiv(); + if (d == 1) { + *wq = wn; + *wr = WINT2FIXWV(0); + return 1; + } + if (d == -1) { + wideint_t xneg = -FIXWV2WINT(wn); + *wq = WINT2WV(xneg); + *wr = WINT2FIXWV(0); + return 1; + } + n = FIXWV2WINT(wn); + if (n == 0) { + *wq = WINT2FIXWV(0); + *wr = WINT2FIXWV(0); + return 1; + } + q = n / d; + r = n % d; + if (d > 0 ? r < 0 : r > 0) { + q -= 1; + r += d; + } + *wq = WINT2FIXWV(q); + *wr = WINT2FIXWV(r); + return 1; + } + return 0; +} +#endif + +static void +wdivmod(wideval_t wn, wideval_t wd, wideval_t *wq, wideval_t *wr) +{ + VALUE vq, vr; +#if WIDEVALUE_IS_WIDER + if (wdivmod0(wn, wd, wq, wr)) return; +#endif + divmodv(w2v(wn), w2v(wd), &vq, &vr); + *wq = v2w(vq); + *wr = v2w(vr); +} + +static void +wmuldivmod(wideval_t wx, wideval_t wy, wideval_t wz, wideval_t *wq, wideval_t *wr) +{ + if (WIDEVAL_GET(wy) == WIDEVAL_GET(wz)) { + *wq = wx; + *wr = WINT2FIXWV(0); + return; + } + wdivmod(wmul(wx,wy), wz, wq, wr); +} + +static wideval_t +wdiv(wideval_t wx, wideval_t wy) +{ +#if WIDEVALUE_IS_WIDER + wideval_t q, dmy; + if (wdivmod0(wx, wy, &q, &dmy)) return q; +#endif + return v2w(divv(w2v(wx), w2v(wy))); +} + +static wideval_t +wmod(wideval_t wx, wideval_t wy) +{ +#if WIDEVALUE_IS_WIDER + wideval_t r, dmy; + if (wdivmod0(wx, wy, &dmy, &r)) return r; +#endif + return v2w(modv(w2v(wx), w2v(wy))); +} + +static VALUE +num_exact_check(VALUE v) +{ + VALUE tmp; + + switch (TYPE(v)) { + case T_FIXNUM: + case T_BIGNUM: + tmp = v; + break; + + case T_RATIONAL: + tmp = rb_rational_canonicalize(v); + break; + + default: + if (!UNDEF_P(tmp = rb_check_funcall(v, idTo_r, 0, NULL))) { + /* test to_int method availability to reject non-Numeric + * objects such as String, Time, etc which have to_r method. */ + if (!rb_respond_to(v, idTo_int)) { + /* FALLTHROUGH */ + } + else if (RB_INTEGER_TYPE_P(tmp)) { + break; + } + else if (RB_TYPE_P(tmp, T_RATIONAL)) { + tmp = rb_rational_canonicalize(tmp); + break; + } + } + else if (!NIL_P(tmp = rb_check_to_int(v))) { + return tmp; + } + + case T_NIL: + case T_STRING: + return Qnil; + } + ASSUME(!NIL_P(tmp)); + return tmp; +} + +NORETURN(static void num_exact_fail(VALUE v)); +static void +num_exact_fail(VALUE v) +{ + rb_raise(rb_eTypeError, "can't convert %"PRIsVALUE" into an exact number", + rb_obj_class(v)); +} + +static VALUE +num_exact(VALUE v) +{ + VALUE num = num_exact_check(v); + if (NIL_P(num)) num_exact_fail(v); + return num; +} + +/* time_t */ + +/* TIME_SCALE should be 10000... */ +static const int TIME_SCALE_NUMDIGITS = rb_strlen_lit(STRINGIZE(TIME_SCALE)) - 1; + +static wideval_t +rb_time_magnify(wideval_t w) +{ + return wmul(w, WINT2FIXWV(TIME_SCALE)); +} + +static VALUE +rb_time_unmagnify_to_rational(wideval_t w) +{ + return quor(w2v(w), INT2FIX(TIME_SCALE)); +} + +static wideval_t +rb_time_unmagnify(wideval_t w) +{ + return v2w(rb_time_unmagnify_to_rational(w)); +} + +static VALUE +rb_time_unmagnify_to_float(wideval_t w) +{ + VALUE v; +#if WIDEVALUE_IS_WIDER + if (FIXWV_P(w)) { + wideint_t a, b, c; + a = FIXWV2WINT(w); + b = TIME_SCALE; + c = a / b; + if (c * b == a) { + return DBL2NUM((double)c); + } + v = DBL2NUM((double)FIXWV2WINT(w)); + return quov(v, DBL2NUM(TIME_SCALE)); + } +#endif + v = w2v(w); + if (RB_TYPE_P(v, T_RATIONAL)) + return rb_Float(quov(v, INT2FIX(TIME_SCALE))); + else + return quov(v, DBL2NUM(TIME_SCALE)); +} + +static void +split_second(wideval_t timew, wideval_t *timew_p, VALUE *subsecx_p) +{ + wideval_t q, r; + wdivmod(timew, WINT2FIXWV(TIME_SCALE), &q, &r); + *timew_p = q; + *subsecx_p = w2v(r); +} + +static wideval_t +timet2wv(time_t t) +{ +#if WIDEVALUE_IS_WIDER + if (TIMET_MIN == 0) { + uwideint_t wi = (uwideint_t)t; + if (wi <= FIXWV_MAX) { + return WINT2FIXWV(wi); + } + } + else { + wideint_t wi = (wideint_t)t; + if (FIXWV_MIN <= wi && wi <= FIXWV_MAX) { + return WINT2FIXWV(wi); + } + } +#endif + return v2w(TIMET2NUM(t)); +} +#define TIMET2WV(t) timet2wv(t) + +static time_t +wv2timet(wideval_t w) +{ +#if WIDEVALUE_IS_WIDER + if (FIXWV_P(w)) { + wideint_t wi = FIXWV2WINT(w); + if (TIMET_MIN == 0) { + if (wi < 0) + rb_raise(rb_eRangeError, "negative value to convert into 'time_t'"); + if (TIMET_MAX < (uwideint_t)wi) + rb_raise(rb_eRangeError, "too big to convert into 'time_t'"); + } + else { + if (wi < TIMET_MIN || TIMET_MAX < wi) + rb_raise(rb_eRangeError, "too big to convert into 'time_t'"); + } + return (time_t)wi; + } +#endif + return NUM2TIMET(w2v(w)); +} +#define WV2TIMET(t) wv2timet(t) VALUE rb_cTime; -static VALUE time_utc_offset _((VALUE)); +static VALUE rb_cTimeTM; + +static int obj2int(VALUE obj); +static uint32_t obj2ubits(VALUE obj, unsigned int bits); +static VALUE obj2vint(VALUE obj); +static uint32_t month_arg(VALUE arg); +static VALUE validate_utc_offset(VALUE utc_offset); +static VALUE validate_zone_name(VALUE zone_name); +static void validate_vtm(struct vtm *vtm); +static void vtm_add_day(struct vtm *vtm, int day); +static uint32_t obj2subsecx(VALUE obj, VALUE *subsecx); -struct time_object { - struct timeval tv; +static VALUE time_gmtime(VALUE); +static VALUE time_localtime(VALUE); +static VALUE time_fixoff(VALUE); +static VALUE time_zonelocal(VALUE time, VALUE off); + +static time_t timegm_noleapsecond(struct tm *tm); +static int tmcmp(struct tm *a, struct tm *b); +static int vtmcmp(struct vtm *a, struct vtm *b); +static const char *find_time_t(struct tm *tptr, int utc_p, time_t *tp); + +static struct vtm *localtimew(wideval_t timew, struct vtm *result); + +static int leap_year_p(long y); +#define leap_year_v_p(y) leap_year_p(NUM2LONG(modv((y), INT2FIX(400)))) + +static VALUE tm_from_time(VALUE klass, VALUE time); + +bool ruby_tz_uptodate_p; + +#ifdef _WIN32 +enum {tzkey_max = numberof(((DYNAMIC_TIME_ZONE_INFORMATION *)NULL)->TimeZoneKeyName)}; +static struct { + char use_tzkey; + char name[tzkey_max * 4 + 1]; +} w32_tz; + +static char * +get_tzname(int dst) +{ + if (w32_tz.use_tzkey) { + if (w32_tz.name[0]) { + return w32_tz.name; + } + else { + /* + * Use GetDynamicTimeZoneInformation::TimeZoneKeyName, Windows + * time zone ID, which is not localized because it is the key + * for "Dynamic DST" keys under the "Time Zones" registry. + * Available since Windows Vista and Windows Server 2008. + */ + DYNAMIC_TIME_ZONE_INFORMATION tzi; + WCHAR *const wtzkey = tzi.TimeZoneKeyName; + DWORD tzret = GetDynamicTimeZoneInformation(&tzi); + if (tzret != TIME_ZONE_ID_INVALID && *wtzkey) { + int wlen = (int)wcsnlen(wtzkey, tzkey_max); + int clen = WideCharToMultiByte(CP_UTF8, 0, wtzkey, wlen, + w32_tz.name, sizeof(w32_tz.name) - 1, + NULL, NULL); + w32_tz.name[clen] = '\0'; + return w32_tz.name; + } + } + } + return _tzname[_daylight && dst]; +} +#endif + +static void ruby_reset_leap_second_info(void); + +void +ruby_reset_timezone(const char *val) +{ + ruby_tz_uptodate_p = false; +#ifdef _WIN32 + w32_tz.use_tzkey = !val || !*val; +#endif + ruby_reset_leap_second_info(); +} + +static void +update_tz(void) +{ + if (ruby_tz_uptodate_p) return; + ruby_tz_uptodate_p = true; + tzset(); +} + +static struct tm * +rb_localtime_r(const time_t *t, struct tm *result) +{ +#if defined __APPLE__ && defined __LP64__ + if (*t != (time_t)(int)*t) return NULL; +#endif + update_tz(); +#ifdef HAVE_GMTIME_R + result = localtime_r(t, result); +#else + { + struct tm *tmp = localtime(t); + if (tmp) *result = *tmp; + } +#endif +#if defined(HAVE_MKTIME) && defined(LOCALTIME_OVERFLOW_PROBLEM) + if (result) { + long gmtoff1 = 0; + long gmtoff2 = 0; + struct tm tmp = *result; + time_t t2; + t2 = mktime(&tmp); +# if defined(HAVE_STRUCT_TM_TM_GMTOFF) + gmtoff1 = result->tm_gmtoff; + gmtoff2 = tmp.tm_gmtoff; +# endif + if (*t + gmtoff1 != t2 + gmtoff2) + result = NULL; + } +#endif + return result; +} +#define LOCALTIME(tm, result) rb_localtime_r((tm), &(result)) + +#ifndef HAVE_STRUCT_TM_TM_GMTOFF +static struct tm * +rb_gmtime_r(const time_t *t, struct tm *result) +{ +#ifdef HAVE_GMTIME_R + result = gmtime_r(t, result); +#else + struct tm *tmp = gmtime(t); + if (tmp) *result = *tmp; +#endif +#if defined(HAVE_TIMEGM) && defined(LOCALTIME_OVERFLOW_PROBLEM) + if (result && *t != timegm(result)) { + return NULL; + } +#endif + return result; +} +# define GMTIME(tm, result) rb_gmtime_r((tm), &(result)) +#endif + +static const int16_t common_year_yday_offset[] = { + -1, + -1 + 31, + -1 + 31 + 28, + -1 + 31 + 28 + 31, + -1 + 31 + 28 + 31 + 30, + -1 + 31 + 28 + 31 + 30 + 31, + -1 + 31 + 28 + 31 + 30 + 31 + 30, + -1 + 31 + 28 + 31 + 30 + 31 + 30 + 31, + -1 + 31 + 28 + 31 + 30 + 31 + 30 + 31 + 31, + -1 + 31 + 28 + 31 + 30 + 31 + 30 + 31 + 31 + 30, + -1 + 31 + 28 + 31 + 30 + 31 + 30 + 31 + 31 + 30 + 31, + -1 + 31 + 28 + 31 + 30 + 31 + 30 + 31 + 31 + 30 + 31 + 30 + /* 1 2 3 4 5 6 7 8 9 10 11 */ +}; +static const int16_t leap_year_yday_offset[] = { + -1, + -1 + 31, + -1 + 31 + 29, + -1 + 31 + 29 + 31, + -1 + 31 + 29 + 31 + 30, + -1 + 31 + 29 + 31 + 30 + 31, + -1 + 31 + 29 + 31 + 30 + 31 + 30, + -1 + 31 + 29 + 31 + 30 + 31 + 30 + 31, + -1 + 31 + 29 + 31 + 30 + 31 + 30 + 31 + 31, + -1 + 31 + 29 + 31 + 30 + 31 + 30 + 31 + 31 + 30, + -1 + 31 + 29 + 31 + 30 + 31 + 30 + 31 + 31 + 30 + 31, + -1 + 31 + 29 + 31 + 30 + 31 + 30 + 31 + 31 + 30 + 31 + 30 + /* 1 2 3 4 5 6 7 8 9 10 11 */ +}; + +static const int8_t common_year_days_in_month[] = { + 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 +}; +static const int8_t leap_year_days_in_month[] = { + 31, 29, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 +}; + +#define days_in_month_of(leap) ((leap) ? leap_year_days_in_month : common_year_days_in_month) +#define days_in_month_in(y) days_in_month_of(leap_year_p(y)) +#define days_in_month_in_v(y) days_in_month_of(leap_year_v_p(y)) + +#define M28(m) \ + (m),(m),(m),(m),(m),(m),(m),(m),(m),(m), \ + (m),(m),(m),(m),(m),(m),(m),(m),(m),(m), \ + (m),(m),(m),(m),(m),(m),(m),(m) +#define M29(m) \ + (m),(m),(m),(m),(m),(m),(m),(m),(m),(m), \ + (m),(m),(m),(m),(m),(m),(m),(m),(m),(m), \ + (m),(m),(m),(m),(m),(m),(m),(m),(m) +#define M30(m) \ + (m),(m),(m),(m),(m),(m),(m),(m),(m),(m), \ + (m),(m),(m),(m),(m),(m),(m),(m),(m),(m), \ + (m),(m),(m),(m),(m),(m),(m),(m),(m),(m) +#define M31(m) \ + (m),(m),(m),(m),(m),(m),(m),(m),(m),(m), \ + (m),(m),(m),(m),(m),(m),(m),(m),(m),(m), \ + (m),(m),(m),(m),(m),(m),(m),(m),(m),(m), (m) + +static const uint8_t common_year_mon_of_yday[] = { + M31(1), M28(2), M31(3), M30(4), M31(5), M30(6), + M31(7), M31(8), M30(9), M31(10), M30(11), M31(12) +}; +static const uint8_t leap_year_mon_of_yday[] = { + M31(1), M29(2), M31(3), M30(4), M31(5), M30(6), + M31(7), M31(8), M30(9), M31(10), M30(11), M31(12) +}; + +#undef M28 +#undef M29 +#undef M30 +#undef M31 + +#define D28 \ + 1,2,3,4,5,6,7,8,9, \ + 10,11,12,13,14,15,16,17,18,19, \ + 20,21,22,23,24,25,26,27,28 +#define D29 \ + 1,2,3,4,5,6,7,8,9, \ + 10,11,12,13,14,15,16,17,18,19, \ + 20,21,22,23,24,25,26,27,28,29 +#define D30 \ + 1,2,3,4,5,6,7,8,9, \ + 10,11,12,13,14,15,16,17,18,19, \ + 20,21,22,23,24,25,26,27,28,29,30 +#define D31 \ + 1,2,3,4,5,6,7,8,9, \ + 10,11,12,13,14,15,16,17,18,19, \ + 20,21,22,23,24,25,26,27,28,29,30,31 + +static const uint8_t common_year_mday_of_yday[] = { + /* 1 2 3 4 5 6 7 8 9 10 11 12 */ + D31, D28, D31, D30, D31, D30, D31, D31, D30, D31, D30, D31 +}; +static const uint8_t leap_year_mday_of_yday[] = { + D31, D29, D31, D30, D31, D30, D31, D31, D30, D31, D30, D31 +}; + +#undef D28 +#undef D29 +#undef D30 +#undef D31 + +static int +calc_tm_yday(long tm_year, int tm_mon, int tm_mday) +{ + int tm_year_mod400 = (int)MOD(tm_year, 400); + int tm_yday = tm_mday; + + if (leap_year_p(tm_year_mod400 + 1900)) + tm_yday += leap_year_yday_offset[tm_mon]; + else + tm_yday += common_year_yday_offset[tm_mon]; + + return tm_yday; +} + +static wideval_t +timegmw_noleapsecond(struct vtm *vtm) +{ + VALUE year1900; + VALUE q400, r400; + int year_mod400; + int yday; + long days_in400; + VALUE vdays, ret; + wideval_t wret; + + year1900 = subv(vtm->year, INT2FIX(1900)); + + divmodv(year1900, INT2FIX(400), &q400, &r400); + year_mod400 = NUM2INT(r400); + + yday = calc_tm_yday(year_mod400, vtm->mon-1, vtm->mday); + + /* + * `Seconds Since the Epoch' in SUSv3: + * tm_sec + tm_min*60 + tm_hour*3600 + tm_yday*86400 + + * (tm_year-70)*31536000 + ((tm_year-69)/4)*86400 - + * ((tm_year-1)/100)*86400 + ((tm_year+299)/400)*86400 + */ + ret = LONG2NUM(vtm->sec + + vtm->min*60 + + vtm->hour*3600); + days_in400 = yday + - 70*365 + + DIV(year_mod400 - 69, 4) + - DIV(year_mod400 - 1, 100) + + (year_mod400 + 299) / 400; + vdays = LONG2NUM(days_in400); + vdays = addv(vdays, mulv(q400, INT2FIX(97))); + vdays = addv(vdays, mulv(year1900, INT2FIX(365))); + wret = wadd(rb_time_magnify(v2w(ret)), wmul(rb_time_magnify(v2w(vdays)), WINT2FIXWV(86400))); + wret = wadd(wret, v2w(vtm->subsecx)); + + return wret; +} + +static VALUE +zone_str(const char *zone) +{ + const char *p; + int ascii_only = 1; + size_t len; + + if (zone == NULL) { + return rb_fstring_lit("(NO-TIMEZONE-ABBREVIATION)"); + } + + for (p = zone; *p; p++) { + if (!ISASCII(*p)) { + ascii_only = 0; + p += strlen(p); + break; + } + } + len = p - zone; + if (ascii_only) { + return rb_enc_interned_str(zone, len, rb_usascii_encoding()); + } + else { +#ifdef _WIN32 + VALUE str = rb_utf8_str_new(zone, len); + /* until we move to UTF-8 on Windows completely */ + str = rb_str_export_locale(str); + return rb_fstring(str); +#else + return rb_enc_interned_str(zone, len, rb_locale_encoding()); +#endif + } +} + +static void +gmtimew_noleapsecond(wideval_t timew, struct vtm *vtm) +{ + VALUE v; + int n, x, y; + int wday; + VALUE timev; + wideval_t timew2, w, w2; + VALUE subsecx; + + vtm->isdst = 0; + + split_second(timew, &timew2, &subsecx); + vtm->subsecx = subsecx; + + wdivmod(timew2, WINT2FIXWV(86400), &w2, &w); + timev = w2v(w2); + v = w2v(w); + + wday = NUM2INT(modv(timev, INT2FIX(7))); + vtm->wday = (wday + 4) % 7; + + n = NUM2INT(v); + vtm->sec = n % 60; n = n / 60; + vtm->min = n % 60; n = n / 60; + vtm->hour = n; + + /* 97 leap days in the 400 year cycle */ + divmodv(timev, INT2FIX(400*365 + 97), &timev, &v); + vtm->year = mulv(timev, INT2FIX(400)); + + /* n is the days in the 400 year cycle. + * the start of the cycle is 1970-01-01. */ + + n = NUM2INT(v); + y = 1970; + + /* 30 years including 7 leap days (1972, 1976, ... 1996), + * 31 days in January 2000 and + * 29 days in February 2000 + * from 1970-01-01 to 2000-02-29 */ + if (30*365+7+31+29-1 <= n) { + /* 2000-02-29 or after */ + if (n < 31*365+8) { + /* 2000-02-29 to 2000-12-31 */ + y += 30; + n -= 30*365+7; + goto found; + } + else { + /* 2001-01-01 or after */ + n -= 1; + } + } + + x = n / (365*100 + 24); + n = n % (365*100 + 24); + y += x * 100; + if (30*365+7+31+29-1 <= n) { + if (n < 31*365+7) { + y += 30; + n -= 30*365+7; + goto found; + } + else + n += 1; + } + + x = n / (365*4 + 1); + n = n % (365*4 + 1); + y += x * 4; + if (365*2+31+29-1 <= n) { + if (n < 365*2+366) { + y += 2; + n -= 365*2; + goto found; + } + else + n -= 1; + } + + x = n / 365; + n = n % 365; + y += x; + + found: + vtm->yday = n+1; + vtm->year = addv(vtm->year, INT2NUM(y)); + + if (leap_year_p(y)) { + vtm->mon = leap_year_mon_of_yday[n]; + vtm->mday = leap_year_mday_of_yday[n]; + } + else { + vtm->mon = common_year_mon_of_yday[n]; + vtm->mday = common_year_mday_of_yday[n]; + } + + vtm->utc_offset = INT2FIX(0); + vtm->zone = str_utc; +} + +static struct tm * +gmtime_with_leapsecond(const time_t *timep, struct tm *result) +{ +#if defined(HAVE_STRUCT_TM_TM_GMTOFF) + /* 4.4BSD counts leap seconds only with localtime, not with gmtime. */ + struct tm *t; + int sign; + int gmtoff_sec, gmtoff_min, gmtoff_hour, gmtoff_day; + long gmtoff; + t = LOCALTIME(timep, *result); + if (t == NULL) + return NULL; + + /* subtract gmtoff */ + if (t->tm_gmtoff < 0) { + sign = 1; + gmtoff = -t->tm_gmtoff; + } + else { + sign = -1; + gmtoff = t->tm_gmtoff; + } + gmtoff_sec = (int)(gmtoff % 60); + gmtoff = gmtoff / 60; + gmtoff_min = (int)(gmtoff % 60); + gmtoff = gmtoff / 60; + gmtoff_hour = (int)gmtoff; /* <= 12 */ + + gmtoff_sec *= sign; + gmtoff_min *= sign; + gmtoff_hour *= sign; + + gmtoff_day = 0; + + if (gmtoff_sec) { + /* If gmtoff_sec == 0, don't change result->tm_sec. + * It may be 60 which is a leap second. */ + result->tm_sec += gmtoff_sec; + if (result->tm_sec < 0) { + result->tm_sec += 60; + gmtoff_min -= 1; + } + if (60 <= result->tm_sec) { + result->tm_sec -= 60; + gmtoff_min += 1; + } + } + if (gmtoff_min) { + result->tm_min += gmtoff_min; + if (result->tm_min < 0) { + result->tm_min += 60; + gmtoff_hour -= 1; + } + if (60 <= result->tm_min) { + result->tm_min -= 60; + gmtoff_hour += 1; + } + } + if (gmtoff_hour) { + result->tm_hour += gmtoff_hour; + if (result->tm_hour < 0) { + result->tm_hour += 24; + gmtoff_day = -1; + } + if (24 <= result->tm_hour) { + result->tm_hour -= 24; + gmtoff_day = 1; + } + } + + if (gmtoff_day) { + if (gmtoff_day < 0) { + if (result->tm_yday == 0) { + result->tm_mday = 31; + result->tm_mon = 11; /* December */ + result->tm_year--; + result->tm_yday = leap_year_p(result->tm_year + 1900) ? 365 : 364; + } + else if (result->tm_mday == 1) { + const int8_t *days_in_month = days_in_month_in(result->tm_year + 1900); + result->tm_mon--; + result->tm_mday = days_in_month[result->tm_mon]; + result->tm_yday--; + } + else { + result->tm_mday--; + result->tm_yday--; + } + result->tm_wday = (result->tm_wday + 6) % 7; + } + else { + int leap = leap_year_p(result->tm_year + 1900); + if (result->tm_yday == (leap ? 365 : 364)) { + result->tm_year++; + result->tm_mon = 0; /* January */ + result->tm_mday = 1; + result->tm_yday = 0; + } + else if (result->tm_mday == days_in_month_of(leap)[result->tm_mon]) { + result->tm_mon++; + result->tm_mday = 1; + result->tm_yday++; + } + else { + result->tm_mday++; + result->tm_yday++; + } + result->tm_wday = (result->tm_wday + 1) % 7; + } + } + result->tm_isdst = 0; + result->tm_gmtoff = 0; +#if defined(HAVE_TM_ZONE) + result->tm_zone = (char *)"UTC"; +#endif + return result; +#else + return GMTIME(timep, *result); +#endif +} + +static long this_year = 0; +static time_t known_leap_seconds_limit; +static int number_of_leap_seconds_known; + +static void +init_leap_second_info(void) +{ + /* + * leap seconds are determined by IERS. + * It is announced 6 months before the leap second. + * So no one knows leap seconds in the future after the next year. + */ + if (this_year == 0) { + time_t now; + struct tm *tm, result; + struct vtm vtm; + wideval_t timew; + now = time(NULL); +#ifdef HAVE_GMTIME_R + gmtime_r(&now, &result); +#else + gmtime(&now); +#endif + tm = gmtime_with_leapsecond(&now, &result); + if (!tm) return; + this_year = tm->tm_year; + + if (TIMET_MAX - now < (time_t)(366*86400)) + known_leap_seconds_limit = TIMET_MAX; + else + known_leap_seconds_limit = now + (time_t)(366*86400); + + if (!gmtime_with_leapsecond(&known_leap_seconds_limit, &result)) + return; + + vtm.year = LONG2NUM(result.tm_year + 1900); + vtm.mon = result.tm_mon + 1; + vtm.mday = result.tm_mday; + vtm.hour = result.tm_hour; + vtm.min = result.tm_min; + vtm.sec = result.tm_sec; + vtm.subsecx = INT2FIX(0); + vtm.utc_offset = INT2FIX(0); + + timew = timegmw_noleapsecond(&vtm); + + number_of_leap_seconds_known = NUM2INT(w2v(wsub(TIMET2WV(known_leap_seconds_limit), rb_time_unmagnify(timew)))); + } +} + +/* Use this if you want to re-run init_leap_second_info() */ +void +ruby_reset_leap_second_info(void) +{ + this_year = 0; +} + +static wideval_t +timegmw(struct vtm *vtm) +{ + wideval_t timew; + struct tm tm; + time_t t; + const char *errmsg; + + /* The first leap second is 1972-06-30 23:59:60 UTC. + * No leap seconds before. */ + if (gt(INT2FIX(1972), vtm->year)) + return timegmw_noleapsecond(vtm); + + init_leap_second_info(); + + timew = timegmw_noleapsecond(vtm); + + + if (number_of_leap_seconds_known == 0) { + /* When init_leap_second_info() is executed, the timezone doesn't have + * leap second information. Disable leap second for calculating gmtime. + */ + return timew; + } + else if (wlt(rb_time_magnify(TIMET2WV(known_leap_seconds_limit)), timew)) { + return wadd(timew, rb_time_magnify(WINT2WV(number_of_leap_seconds_known))); + } + + tm.tm_year = rb_long2int(NUM2LONG(vtm->year) - 1900); + tm.tm_mon = vtm->mon - 1; + tm.tm_mday = vtm->mday; + tm.tm_hour = vtm->hour; + tm.tm_min = vtm->min; + tm.tm_sec = vtm->sec; + tm.tm_isdst = 0; + + errmsg = find_time_t(&tm, 1, &t); + if (errmsg) + rb_raise(rb_eArgError, "%s", errmsg); + return wadd(rb_time_magnify(TIMET2WV(t)), v2w(vtm->subsecx)); +} + +static struct vtm * +gmtimew(wideval_t timew, struct vtm *result) +{ + time_t t; + struct tm tm; + VALUE subsecx; + wideval_t timew2; + + if (wlt(timew, WINT2FIXWV(0))) { + gmtimew_noleapsecond(timew, result); + return result; + } + + init_leap_second_info(); + + if (number_of_leap_seconds_known == 0) { + /* When init_leap_second_info() is executed, the timezone doesn't have + * leap second information. Disable leap second for calculating gmtime. + */ + gmtimew_noleapsecond(timew, result); + return result; + } + else if (wlt(rb_time_magnify(TIMET2WV(known_leap_seconds_limit)), timew)) { + timew = wsub(timew, rb_time_magnify(WINT2WV(number_of_leap_seconds_known))); + gmtimew_noleapsecond(timew, result); + return result; + } + + split_second(timew, &timew2, &subsecx); + + t = WV2TIMET(timew2); + if (!gmtime_with_leapsecond(&t, &tm)) + return NULL; + + result->year = LONG2NUM((long)tm.tm_year + 1900); + result->mon = tm.tm_mon + 1; + result->mday = tm.tm_mday; + result->hour = tm.tm_hour; + result->min = tm.tm_min; + result->sec = tm.tm_sec; + result->subsecx = subsecx; + result->utc_offset = INT2FIX(0); + result->wday = tm.tm_wday; + result->yday = tm.tm_yday+1; + result->isdst = tm.tm_isdst; + + return result; +} + +#define GMTIMEW(w, v) \ + (gmtimew(w, v) ? (void)0 : rb_raise(rb_eArgError, "gmtime error")) + +static struct tm *localtime_with_gmtoff_zone(const time_t *t, struct tm *result, long *gmtoff, VALUE *zone); + +/* + * The idea, extrapolate localtime() function, is borrowed from Perl: + * http://web.archive.org/web/20080211114141/http://use.perl.org/articles/08/02/07/197204.shtml + * + * compat_common_month_table is generated by the following program. + * This table finds the last month which starts at the same day of a week. + * The year 2037 is not used because: + * https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=522949 + * + * #!/usr/bin/ruby + * + * require 'date' + * + * h = {} + * 2036.downto(2010) {|y| + * 1.upto(12) {|m| + * next if m == 2 && y % 4 == 0 + * d = Date.new(y,m,1) + * h[m] ||= {} + * h[m][d.wday] ||= y + * } + * } + * + * 1.upto(12) {|m| + * print "{" + * 0.upto(6) {|w| + * y = h[m][w] + * print " #{y}," + * } + * puts "}," + * } + * + */ +static const int compat_common_month_table[12][7] = { + /* Sun Mon Tue Wed Thu Fri Sat */ + { 2034, 2035, 2036, 2031, 2032, 2027, 2033 }, /* January */ + { 2026, 2027, 2033, 2034, 2035, 2030, 2031 }, /* February */ + { 2026, 2032, 2033, 2034, 2035, 2030, 2036 }, /* March */ + { 2035, 2030, 2036, 2026, 2032, 2033, 2034 }, /* April */ + { 2033, 2034, 2035, 2030, 2036, 2026, 2032 }, /* May */ + { 2036, 2026, 2032, 2033, 2034, 2035, 2030 }, /* June */ + { 2035, 2030, 2036, 2026, 2032, 2033, 2034 }, /* July */ + { 2032, 2033, 2034, 2035, 2030, 2036, 2026 }, /* August */ + { 2030, 2036, 2026, 2032, 2033, 2034, 2035 }, /* September */ + { 2034, 2035, 2030, 2036, 2026, 2032, 2033 }, /* October */ + { 2026, 2032, 2033, 2034, 2035, 2030, 2036 }, /* November */ + { 2030, 2036, 2026, 2032, 2033, 2034, 2035 }, /* December */ +}; + +/* + * compat_leap_month_table is generated by following program. + * + * #!/usr/bin/ruby + * + * require 'date' + * + * h = {} + * 2037.downto(2010) {|y| + * 1.upto(12) {|m| + * next unless m == 2 && y % 4 == 0 + * d = Date.new(y,m,1) + * h[m] ||= {} + * h[m][d.wday] ||= y + * } + * } + * + * 2.upto(2) {|m| + * 0.upto(6) {|w| + * y = h[m][w] + * print " #{y}," + * } + * puts + * } + */ +static const int compat_leap_month_table[7] = { +/* Sun Mon Tue Wed Thu Fri Sat */ + 2032, 2016, 2028, 2012, 2024, 2036, 2020, /* February */ +}; + +static int +calc_wday(int year_mod400, int month, int day) +{ + int a, y, m; + int wday; + + a = (14 - month) / 12; + y = year_mod400 + 4800 - a; + m = month + 12 * a - 3; + wday = day + (153*m+2)/5 + 365*y + y/4 - y/100 + y/400 + 2; + wday = wday % 7; + return wday; +} + +static VALUE +guess_local_offset(struct vtm *vtm_utc, int *isdst_ret, VALUE *zone_ret) +{ + struct tm tm; + long gmtoff; + VALUE zone; + time_t t; + struct vtm vtm2; + VALUE timev; + int year_mod400, wday; + + /* Daylight Saving Time was introduced in 1916. + * So we don't need to care about DST before that. */ + if (lt(vtm_utc->year, INT2FIX(1916))) { + VALUE off = INT2FIX(0); + int isdst = 0; + zone = str_utc; + +# if defined(NEGATIVE_TIME_T) +# if SIZEOF_TIME_T <= 4 + /* 1901-12-13 20:45:52 UTC : The oldest time in 32-bit signed time_t. */ +# define THE_TIME_OLD_ENOUGH ((time_t)0x80000000) +# else + /* Since the Royal Greenwich Observatory was commissioned in 1675, + no timezone defined using GMT at 1600. */ +# define THE_TIME_OLD_ENOUGH ((time_t)(1600-1970)*366*24*60*60) +# endif + if (localtime_with_gmtoff_zone((t = THE_TIME_OLD_ENOUGH, &t), &tm, &gmtoff, &zone)) { + off = LONG2FIX(gmtoff); + isdst = tm.tm_isdst; + } + else +# endif + /* 1970-01-01 00:00:00 UTC : The Unix epoch - the oldest time in portable time_t. */ + if (localtime_with_gmtoff_zone((t = 0, &t), &tm, &gmtoff, &zone)) { + off = LONG2FIX(gmtoff); + isdst = tm.tm_isdst; + } + + if (isdst_ret) + *isdst_ret = isdst; + if (zone_ret) + *zone_ret = zone; + return off; + } + + /* It is difficult to guess the future. */ + + vtm2 = *vtm_utc; + + /* guess using a year before 2038. */ + year_mod400 = NUM2INT(modv(vtm_utc->year, INT2FIX(400))); + wday = calc_wday(year_mod400, vtm_utc->mon, 1); + if (vtm_utc->mon == 2 && leap_year_p(year_mod400)) + vtm2.year = INT2FIX(compat_leap_month_table[wday]); + else + vtm2.year = INT2FIX(compat_common_month_table[vtm_utc->mon-1][wday]); + + timev = w2v(rb_time_unmagnify(timegmw(&vtm2))); + t = NUM2TIMET(timev); + zone = str_utc; + if (localtime_with_gmtoff_zone(&t, &tm, &gmtoff, &zone)) { + if (isdst_ret) + *isdst_ret = tm.tm_isdst; + if (zone_ret) + *zone_ret = zone; + return LONG2FIX(gmtoff); + } + + { + /* Use the current time offset as a last resort. */ + static time_t now = 0; + static long now_gmtoff = 0; + static int now_isdst = 0; + static VALUE now_zone; + if (now == 0) { + VALUE zone; + now = time(NULL); + localtime_with_gmtoff_zone(&now, &tm, &now_gmtoff, &zone); + now_isdst = tm.tm_isdst; + zone = rb_fstring(zone); + rb_vm_register_global_object(zone); + now_zone = zone; + } + if (isdst_ret) + *isdst_ret = now_isdst; + if (zone_ret) + *zone_ret = now_zone; + return LONG2FIX(now_gmtoff); + } +} + +static VALUE +small_vtm_sub(struct vtm *vtm1, struct vtm *vtm2) +{ + int off; + + off = vtm1->sec - vtm2->sec; + off += (vtm1->min - vtm2->min) * 60; + off += (vtm1->hour - vtm2->hour) * 3600; + if (ne(vtm1->year, vtm2->year)) + off += lt(vtm1->year, vtm2->year) ? -24*3600 : 24*3600; + else if (vtm1->mon != vtm2->mon) + off += vtm1->mon < vtm2->mon ? -24*3600 : 24*3600; + else if (vtm1->mday != vtm2->mday) + off += vtm1->mday < vtm2->mday ? -24*3600 : 24*3600; + + return INT2FIX(off); +} + +static wideval_t +timelocalw(struct vtm *vtm) +{ + time_t t; struct tm tm; - int gmt; - int tm_got; + VALUE v; + wideval_t timew1, timew2; + struct vtm vtm1, vtm2; + int n; + + if (FIXNUM_P(vtm->year)) { + long l = FIX2LONG(vtm->year) - 1900; + if (l < INT_MIN || INT_MAX < l) + goto no_localtime; + tm.tm_year = (int)l; + } + else { + v = subv(vtm->year, INT2FIX(1900)); + if (lt(v, INT2NUM(INT_MIN)) || lt(INT2NUM(INT_MAX), v)) + goto no_localtime; + tm.tm_year = NUM2INT(v); + } + + tm.tm_mon = vtm->mon-1; + tm.tm_mday = vtm->mday; + tm.tm_hour = vtm->hour; + tm.tm_min = vtm->min; + tm.tm_sec = vtm->sec; + tm.tm_isdst = vtm->isdst == VTM_ISDST_INITVAL ? -1 : vtm->isdst; + + if (find_time_t(&tm, 0, &t)) + goto no_localtime; + return wadd(rb_time_magnify(TIMET2WV(t)), v2w(vtm->subsecx)); + + no_localtime: + timew1 = timegmw(vtm); + + if (!localtimew(timew1, &vtm1)) + rb_raise(rb_eArgError, "localtimew error"); + + n = vtmcmp(vtm, &vtm1); + if (n == 0) { + timew1 = wsub(timew1, rb_time_magnify(WINT2FIXWV(12*3600))); + if (!localtimew(timew1, &vtm1)) + rb_raise(rb_eArgError, "localtimew error"); + n = 1; + } + + if (n < 0) { + timew2 = timew1; + vtm2 = vtm1; + timew1 = wsub(timew1, rb_time_magnify(WINT2FIXWV(24*3600))); + if (!localtimew(timew1, &vtm1)) + rb_raise(rb_eArgError, "localtimew error"); + } + else { + timew2 = wadd(timew1, rb_time_magnify(WINT2FIXWV(24*3600))); + if (!localtimew(timew2, &vtm2)) + rb_raise(rb_eArgError, "localtimew error"); + } + timew1 = wadd(timew1, rb_time_magnify(v2w(small_vtm_sub(vtm, &vtm1)))); + timew2 = wadd(timew2, rb_time_magnify(v2w(small_vtm_sub(vtm, &vtm2)))); + + if (weq(timew1, timew2)) + return timew1; + + if (!localtimew(timew1, &vtm1)) + rb_raise(rb_eArgError, "localtimew error"); + if (vtm->hour != vtm1.hour || vtm->min != vtm1.min || vtm->sec != vtm1.sec) + return timew2; + + if (!localtimew(timew2, &vtm2)) + rb_raise(rb_eArgError, "localtimew error"); + if (vtm->hour != vtm2.hour || vtm->min != vtm2.min || vtm->sec != vtm2.sec) + return timew1; + + if (vtm->isdst) + return lt(vtm1.utc_offset, vtm2.utc_offset) ? timew2 : timew1; + else + return lt(vtm1.utc_offset, vtm2.utc_offset) ? timew1 : timew2; +} + +static struct tm * +localtime_with_gmtoff_zone(const time_t *t, struct tm *result, long *gmtoff, VALUE *zone) +{ + struct tm tm; + + if (LOCALTIME(t, tm)) { +#if defined(HAVE_STRUCT_TM_TM_GMTOFF) + *gmtoff = tm.tm_gmtoff; +#else + struct tm *u, *l; + long off; + struct tm tmbuf; + l = &tm; + u = GMTIME(t, tmbuf); + if (!u) + return NULL; + if (l->tm_year != u->tm_year) + off = l->tm_year < u->tm_year ? -1 : 1; + else if (l->tm_mon != u->tm_mon) + off = l->tm_mon < u->tm_mon ? -1 : 1; + else if (l->tm_mday != u->tm_mday) + off = l->tm_mday < u->tm_mday ? -1 : 1; + else + off = 0; + off = off * 24 + l->tm_hour - u->tm_hour; + off = off * 60 + l->tm_min - u->tm_min; + off = off * 60 + l->tm_sec - u->tm_sec; + *gmtoff = off; +#endif + + if (zone) { +#if defined(HAVE_TM_ZONE) + *zone = zone_str(tm.tm_zone); +#elif defined(_WIN32) + *zone = zone_str(get_tzname(tm.tm_isdst)); +#elif defined(HAVE_TZNAME) && defined(HAVE_DAYLIGHT) + /* this needs tzset or localtime, instead of localtime_r */ + *zone = zone_str(tzname[daylight && tm.tm_isdst]); +#else + { + char buf[64]; + strftime(buf, sizeof(buf), "%Z", &tm); + *zone = zone_str(buf); + } +#endif + } + + *result = tm; + return result; + } + return NULL; +} + +static int +timew_out_of_timet_range(wideval_t timew) +{ + VALUE timexv; +#if WIDEVALUE_IS_WIDER && SIZEOF_TIME_T < SIZEOF_INT64_T + if (FIXWV_P(timew)) { + wideint_t t = FIXWV2WINT(timew); + if (t < TIME_SCALE * (wideint_t)TIMET_MIN || + TIME_SCALE * (1 + (wideint_t)TIMET_MAX) <= t) + return 1; + return 0; + } +#endif +#if SIZEOF_TIME_T == SIZEOF_INT64_T + if (FIXWV_P(timew)) { + wideint_t t = FIXWV2WINT(timew); + if (~(time_t)0 <= 0) { + return 0; + } + else { + if (t < 0) + return 1; + return 0; + } + } +#endif + timexv = w2v(timew); + if (lt(timexv, mulv(INT2FIX(TIME_SCALE), TIMET2NUM(TIMET_MIN))) || + le(mulv(INT2FIX(TIME_SCALE), addv(TIMET2NUM(TIMET_MAX), INT2FIX(1))), timexv)) + return 1; + return 0; +} + +static struct vtm * +localtimew(wideval_t timew, struct vtm *result) +{ + VALUE subsecx, offset; + VALUE zone; + int isdst; + + if (!timew_out_of_timet_range(timew)) { + time_t t; + struct tm tm; + long gmtoff; + wideval_t timew2; + + split_second(timew, &timew2, &subsecx); + + t = WV2TIMET(timew2); + + if (localtime_with_gmtoff_zone(&t, &tm, &gmtoff, &zone)) { + result->year = LONG2NUM((long)tm.tm_year + 1900); + result->mon = tm.tm_mon + 1; + result->mday = tm.tm_mday; + result->hour = tm.tm_hour; + result->min = tm.tm_min; + result->sec = tm.tm_sec; + result->subsecx = subsecx; + result->wday = tm.tm_wday; + result->yday = tm.tm_yday+1; + result->isdst = tm.tm_isdst; + result->utc_offset = LONG2NUM(gmtoff); + result->zone = zone; + return result; + } + } + + if (!gmtimew(timew, result)) + return NULL; + + offset = guess_local_offset(result, &isdst, &zone); + + if (!gmtimew(wadd(timew, rb_time_magnify(v2w(offset))), result)) + return NULL; + + result->utc_offset = offset; + result->isdst = isdst; + result->zone = zone; + + return result; +} + +#define TIME_TZMODE_LOCALTIME 0 +#define TIME_TZMODE_UTC 1 +#define TIME_TZMODE_FIXOFF 2 +#define TIME_TZMODE_UNINITIALIZED 3 + +struct time_object { + wideval_t timew; /* time_t value * TIME_SCALE. possibly Rational. */ + struct vtm vtm; }; -#define GetTimeval(obj, tobj) \ - Data_Get_Struct(obj, struct time_object, tobj) +#define GetTimeval(obj, tobj) ((tobj) = get_timeval(obj)) +#define GetNewTimeval(obj, tobj) ((tobj) = get_new_timeval(obj)) + +#define IsTimeval(obj) rb_typeddata_is_kind_of((obj), &time_data_type) +#define TIME_INIT_P(tobj) ((tobj)->vtm.tzmode != TIME_TZMODE_UNINITIALIZED) + +#define TZMODE_UTC_P(tobj) ((tobj)->vtm.tzmode == TIME_TZMODE_UTC) +#define TZMODE_SET_UTC(tobj) ((tobj)->vtm.tzmode = TIME_TZMODE_UTC) + +#define TZMODE_LOCALTIME_P(tobj) ((tobj)->vtm.tzmode == TIME_TZMODE_LOCALTIME) +#define TZMODE_SET_LOCALTIME(tobj) ((tobj)->vtm.tzmode = TIME_TZMODE_LOCALTIME) + +#define TZMODE_FIXOFF_P(tobj) ((tobj)->vtm.tzmode == TIME_TZMODE_FIXOFF) +#define TZMODE_SET_FIXOFF(time, tobj, off) do { \ + (tobj)->vtm.tzmode = TIME_TZMODE_FIXOFF; \ + RB_OBJ_WRITE_UNALIGNED(time, &(tobj)->vtm.utc_offset, off); \ +} while (0) + +#define TZMODE_COPY(tobj1, tobj2) \ + ((tobj1)->vtm.tzmode = (tobj2)->vtm.tzmode, \ + (tobj1)->vtm.utc_offset = (tobj2)->vtm.utc_offset, \ + (tobj1)->vtm.zone = (tobj2)->vtm.zone) + +static int zone_localtime(VALUE zone, VALUE time); +static VALUE time_get_tm(VALUE, struct time_object *); +#define MAKE_TM(time, tobj) \ + do { \ + if ((tobj)->vtm.tm_got == 0) { \ + time_get_tm((time), (tobj)); \ + } \ + } while (0) +#define MAKE_TM_ENSURE(time, tobj, cond) \ + do { \ + MAKE_TM(time, tobj); \ + if (!(cond)) { \ + force_make_tm(time, tobj); \ + } \ + } while (0) static void -time_free(void *tobj) +time_set_timew(VALUE time, struct time_object *tobj, wideval_t timew) { - if (tobj) free(tobj); + tobj->timew = timew; + if (!FIXWV_P(timew)) { + RB_OBJ_WRITTEN(time, Qnil, w2v(timew)); + } +} + +static void +time_set_vtm(VALUE time, struct time_object *tobj, struct vtm vtm) +{ + tobj->vtm = vtm; + + RB_OBJ_WRITTEN(time, Qnil, tobj->vtm.year); + RB_OBJ_WRITTEN(time, Qnil, tobj->vtm.subsecx); + RB_OBJ_WRITTEN(time, Qnil, tobj->vtm.utc_offset); + RB_OBJ_WRITTEN(time, Qnil, tobj->vtm.zone); } +static inline void +force_make_tm(VALUE time, struct time_object *tobj) +{ + VALUE zone = tobj->vtm.zone; + if (!NIL_P(zone) && zone != str_empty && zone != str_utc) { + if (zone_localtime(zone, time)) return; + } + tobj->vtm.tm_got = 0; + time_get_tm(time, tobj); +} + +static void +time_mark_and_move(void *ptr) +{ + struct time_object *tobj = ptr; + if (!WIDEVALUE_IS_WIDER || !FIXWV_P(tobj->timew)) { + rb_gc_mark_and_move((VALUE *)&WIDEVAL_GET(tobj->timew)); + } + rb_gc_mark_and_move(&tobj->vtm.year); + rb_gc_mark_and_move(&tobj->vtm.subsecx); + rb_gc_mark_and_move(&tobj->vtm.utc_offset); + rb_gc_mark_and_move(&tobj->vtm.zone); +} + +static const rb_data_type_t time_data_type = { + .wrap_struct_name = "time", + .function = { + .dmark = time_mark_and_move, + .dfree = RUBY_TYPED_DEFAULT_FREE, + .dsize = NULL, + .dcompact = time_mark_and_move, + }, + .flags = RUBY_TYPED_FREE_IMMEDIATELY | RUBY_TYPED_FROZEN_SHAREABLE | RUBY_TYPED_WB_PROTECTED | RUBY_TYPED_EMBEDDABLE, +}; + static VALUE time_s_alloc(VALUE klass) { VALUE obj; struct time_object *tobj; - obj = Data_Make_Struct(klass, struct time_object, 0, time_free, tobj); - tobj->tm_got=0; - tobj->tv.tv_sec = 0; - tobj->tv.tv_usec = 0; + obj = TypedData_Make_Struct(klass, struct time_object, &time_data_type, tobj); + tobj->vtm.tzmode = TIME_TZMODE_UNINITIALIZED; + tobj->vtm.tm_got = 0; + time_set_timew(obj, tobj, WINT2FIXWV(0)); + tobj->vtm.zone = Qnil; return obj; } +static struct time_object * +get_timeval(VALUE obj) +{ + struct time_object *tobj; + TypedData_Get_Struct(obj, struct time_object, &time_data_type, tobj); + if (!TIME_INIT_P(tobj)) { + rb_raise(rb_eTypeError, "uninitialized %"PRIsVALUE, rb_obj_class(obj)); + } + return tobj; +} + +static struct time_object * +get_new_timeval(VALUE obj) +{ + struct time_object *tobj; + TypedData_Get_Struct(obj, struct time_object, &time_data_type, tobj); + if (TIME_INIT_P(tobj)) { + rb_raise(rb_eTypeError, "already initialized %"PRIsVALUE, rb_obj_class(obj)); + } + return tobj; +} + static void time_modify(VALUE time) { rb_check_frozen(time); - if (!OBJ_TAINTED(time) && rb_safe_level() >= 4) - rb_raise(rb_eSecurityError, "Insecure: can't modify Time"); +} + +static wideval_t +timenano2timew(wideint_t sec, long nsec) +{ + wideval_t timew; + + timew = rb_time_magnify(WINT2WV(sec)); + if (nsec) + timew = wadd(timew, wmulquoll(WINT2WV(nsec), TIME_SCALE, 1000000000)); + return timew; +} + +static struct timespec +timew2timespec(wideval_t timew) +{ + VALUE subsecx; + struct timespec ts; + wideval_t timew2; + + if (timew_out_of_timet_range(timew)) + rb_raise(rb_eArgError, "time out of system range"); + split_second(timew, &timew2, &subsecx); + ts.tv_sec = WV2TIMET(timew2); + ts.tv_nsec = NUM2LONG(mulquov(subsecx, INT2FIX(1000000000), INT2FIX(TIME_SCALE))); + return ts; +} + +static struct timespec * +timew2timespec_exact(wideval_t timew, struct timespec *ts) +{ + VALUE subsecx; + wideval_t timew2; + VALUE nsecv; + + if (timew_out_of_timet_range(timew)) + return NULL; + split_second(timew, &timew2, &subsecx); + ts->tv_sec = WV2TIMET(timew2); + nsecv = mulquov(subsecx, INT2FIX(1000000000), INT2FIX(TIME_SCALE)); + if (!FIXNUM_P(nsecv)) + return NULL; + ts->tv_nsec = NUM2LONG(nsecv); + return ts; +} + +void +rb_timespec_now(struct timespec *ts) +{ +#ifdef HAVE_CLOCK_GETTIME + if (clock_gettime(CLOCK_REALTIME, ts) == -1) { + rb_sys_fail("clock_gettime"); + } +#else + { + struct timeval tv; + if (gettimeofday(&tv, 0) < 0) { + rb_sys_fail("gettimeofday"); + } + ts->tv_sec = tv.tv_sec; + ts->tv_nsec = tv.tv_usec * 1000; + } +#endif } /* - * Document-method: now - * - * Synonym for <code>Time.new</code>. Returns a +Time+ object - * initialized tot he current system time. + * Sets the current time information into _time_. + * Returns _time_. */ +static VALUE +time_init_now(rb_execution_context_t *ec, VALUE time, VALUE zone) +{ + struct time_object *tobj; + struct timespec ts; + + time_modify(time); + GetNewTimeval(time, tobj); + TZMODE_SET_LOCALTIME(tobj); + tobj->vtm.tm_got=0; + rb_timespec_now(&ts); + time_set_timew(time, tobj, timenano2timew(ts.tv_sec, ts.tv_nsec)); + + if (!NIL_P(zone)) { + time_zonelocal(time, zone); + } + return time; +} + +static VALUE +time_s_now(rb_execution_context_t *ec, VALUE klass, VALUE zone) +{ + VALUE t = time_s_alloc(klass); + return time_init_now(ec, t, zone); +} + +static VALUE +time_set_utc_offset(VALUE time, VALUE off) +{ + struct time_object *tobj; + off = num_exact(off); + + time_modify(time); + GetTimeval(time, tobj); + + tobj->vtm.tm_got = 0; + tobj->vtm.zone = Qnil; + TZMODE_SET_FIXOFF(time, tobj, off); + + return time; +} + +static void +vtm_add_offset(struct vtm *vtm, VALUE off, int sign) +{ + VALUE subsec, v; + int sec, min, hour; + int day; + + if (lt(off, INT2FIX(0))) { + sign = -sign; + off = neg(off); + } + divmodv(off, INT2FIX(1), &off, &subsec); + divmodv(off, INT2FIX(60), &off, &v); + sec = NUM2INT(v); + divmodv(off, INT2FIX(60), &off, &v); + min = NUM2INT(v); + divmodv(off, INT2FIX(24), &off, &v); + hour = NUM2INT(v); + + if (sign < 0) { + subsec = neg(subsec); + sec = -sec; + min = -min; + hour = -hour; + } + + day = 0; + + if (!rb_equal(subsec, INT2FIX(0))) { + vtm->subsecx = addv(vtm->subsecx, w2v(rb_time_magnify(v2w(subsec)))); + if (lt(vtm->subsecx, INT2FIX(0))) { + vtm->subsecx = addv(vtm->subsecx, INT2FIX(TIME_SCALE)); + sec -= 1; + } + if (le(INT2FIX(TIME_SCALE), vtm->subsecx)) { + vtm->subsecx = subv(vtm->subsecx, INT2FIX(TIME_SCALE)); + sec += 1; + } + } + if (sec) { + /* If sec + subsec == 0, don't change vtm->sec. + * It may be 60 which is a leap second. */ + sec += vtm->sec; + if (sec < 0) { + sec += 60; + min -= 1; + } + if (60 <= sec) { + sec -= 60; + min += 1; + } + vtm->sec = sec; + } + if (min) { + min += vtm->min; + if (min < 0) { + min += 60; + hour -= 1; + } + if (60 <= min) { + min -= 60; + hour += 1; + } + vtm->min = min; + } + if (hour) { + hour += vtm->hour; + if (hour < 0) { + hour += 24; + day = -1; + } + if (24 <= hour) { + hour -= 24; + day = 1; + } + vtm->hour = hour; + } + + vtm_add_day(vtm, day); +} + +static void +vtm_add_day(struct vtm *vtm, int day) +{ + if (day) { + if (day < 0) { + if (vtm->mon == 1 && vtm->mday == 1) { + vtm->mday = 31; + vtm->mon = 12; /* December */ + vtm->year = subv(vtm->year, INT2FIX(1)); + if (vtm->yday != 0) + vtm->yday = leap_year_v_p(vtm->year) ? 366 : 365; + } + else if (vtm->mday == 1) { + const int8_t *days_in_month = days_in_month_in_v(vtm->year); + vtm->mon--; + vtm->mday = days_in_month[vtm->mon-1]; + if (vtm->yday != 0) vtm->yday--; + } + else { + vtm->mday--; + if (vtm->yday != 0) vtm->yday--; + } + if (vtm->wday != VTM_WDAY_INITVAL) vtm->wday = (vtm->wday + 6) % 7; + } + else { + int leap = leap_year_v_p(vtm->year); + if (vtm->mon == 12 && vtm->mday == 31) { + vtm->year = addv(vtm->year, INT2FIX(1)); + vtm->mon = 1; /* January */ + vtm->mday = 1; + vtm->yday = 1; + } + else if (vtm->mday == days_in_month_of(leap)[vtm->mon-1]) { + vtm->mon++; + vtm->mday = 1; + if (vtm->yday != 0) vtm->yday++; + } + else { + vtm->mday++; + if (vtm->yday != 0) vtm->yday++; + } + if (vtm->wday != VTM_WDAY_INITVAL) vtm->wday = (vtm->wday + 1) % 7; + } + } +} + +static int +maybe_tzobj_p(VALUE obj) +{ + if (NIL_P(obj)) return FALSE; + if (RB_INTEGER_TYPE_P(obj)) return FALSE; + if (RB_TYPE_P(obj, T_STRING)) return FALSE; + return TRUE; +} + +NORETURN(static void invalid_utc_offset(VALUE)); +static void +invalid_utc_offset(VALUE zone) +{ + rb_raise(rb_eArgError, "\"+HH:MM\", \"-HH:MM\", \"UTC\" or " + "\"A\"..\"I\",\"K\"..\"Z\" expected for utc_offset: %"PRIsVALUE, + zone); +} + +#define have_2digits(ptr) (ISDIGIT((ptr)[0]) && ISDIGIT((ptr)[1])) +#define num_from_2digits(ptr) ((ptr)[0] * 10 + (ptr)[1] - '0' * 11) + +static VALUE +utc_offset_arg(VALUE arg) +{ + VALUE tmp; + if (!NIL_P(tmp = rb_check_string_type(arg))) { + int n = 0; + const char *s = RSTRING_PTR(tmp), *min = NULL, *sec = NULL; + if (!rb_enc_str_asciicompat_p(tmp)) { + goto invalid_utc_offset; + } + switch (RSTRING_LEN(tmp)) { + case 1: + if (s[0] == 'Z') { + return UTC_ZONE; + } + /* Military Time Zone Names */ + if (s[0] >= 'A' && s[0] <= 'I') { + n = (int)s[0] - 'A' + 1; + } + /* No 'J' zone */ + else if (s[0] >= 'K' && s[0] <= 'M') { + n = (int)s[0] - 'A'; + } + else if (s[0] >= 'N' && s[0] <= 'Y') { + n = 'M' - (int)s[0]; + } + else { + goto invalid_utc_offset; + } + n *= 3600; + return INT2FIX(n); + case 3: + if (STRNCASECMP("UTC", s, 3) == 0) { + return UTC_ZONE; + } + break; /* +HH */ + case 7: /* +HHMMSS */ + sec = s+5; + /* fallthrough */ + case 5: /* +HHMM */ + min = s+3; + break; + case 9: /* +HH:MM:SS */ + if (s[6] != ':') goto invalid_utc_offset; + sec = s+7; + /* fallthrough */ + case 6: /* +HH:MM */ + if (s[3] != ':') goto invalid_utc_offset; + min = s+4; + break; + default: + goto invalid_utc_offset; + } + if (sec) { + if (!have_2digits(sec)) goto invalid_utc_offset; + if (sec[0] > '5') goto invalid_utc_offset; + n += num_from_2digits(sec); + ASSUME(min); + } + if (min) { + if (!have_2digits(min)) goto invalid_utc_offset; + if (min[0] > '5') goto invalid_utc_offset; + n += num_from_2digits(min) * 60; + } + if (s[0] != '+' && s[0] != '-') goto invalid_utc_offset; + if (!have_2digits(s+1)) goto invalid_utc_offset; + n += num_from_2digits(s+1) * 3600; + if (s[0] == '-') { + if (n == 0) return UTC_ZONE; + n = -n; + } + return INT2FIX(n); + } + else { + return num_exact(arg); + } + invalid_utc_offset: + return Qnil; +} + +static void +zone_set_offset(VALUE zone, struct time_object *tobj, + wideval_t tlocal, wideval_t tutc, VALUE time) +{ + /* tlocal and tutc must be unmagnified and in seconds */ + wideval_t w = wsub(tlocal, tutc); + VALUE off = w2v(w); + validate_utc_offset(off); + RB_OBJ_WRITE(time, &tobj->vtm.utc_offset, off); + RB_OBJ_WRITE(time, &tobj->vtm.zone, zone); + TZMODE_SET_LOCALTIME(tobj); +} + +static wideval_t +extract_time(VALUE time) +{ + wideval_t t; + const ID id_to_i = idTo_i; + +#define EXTRACT_TIME() do { \ + t = NUM2WV(AREF(to_i)); \ + } while (0) + + if (rb_typeddata_is_kind_of(time, &time_data_type)) { + struct time_object *tobj = RTYPEDDATA_GET_DATA(time); + + time_gmtime(time); /* ensure tm got */ + t = rb_time_unmagnify(tobj->timew); + + RB_GC_GUARD(time); + } + else if (RB_TYPE_P(time, T_STRUCT)) { +#define AREF(x) rb_struct_aref(time, ID2SYM(id_##x)) + EXTRACT_TIME(); +#undef AREF + } + else { +#define AREF(x) rb_funcallv(time, id_##x, 0, 0) + EXTRACT_TIME(); +#undef AREF + } +#undef EXTRACT_TIME + + return t; +} + +static wideval_t +extract_vtm(VALUE time, VALUE orig_time, struct time_object *orig_tobj, VALUE subsecx) +{ + wideval_t t; + const ID id_to_i = idTo_i; + struct vtm *vtm = &orig_tobj->vtm; + +#define EXTRACT_VTM() do { \ + VALUE subsecx; \ + vtm->year = obj2vint(AREF(year)); \ + vtm->mon = month_arg(AREF(mon)); \ + vtm->mday = obj2ubits(AREF(mday), 5); \ + vtm->hour = obj2ubits(AREF(hour), 5); \ + vtm->min = obj2ubits(AREF(min), 6); \ + vtm->sec = obj2subsecx(AREF(sec), &subsecx); \ + vtm->isdst = RTEST(AREF(isdst)); \ + vtm->utc_offset = Qnil; \ + t = NUM2WV(AREF(to_i)); \ + } while (0) + + if (rb_typeddata_is_kind_of(time, &time_data_type)) { + struct time_object *tobj = RTYPEDDATA_GET_DATA(time); + + time_get_tm(time, tobj); + time_set_vtm(orig_time, orig_tobj, tobj->vtm); + t = rb_time_unmagnify(tobj->timew); + if (TZMODE_FIXOFF_P(tobj) && vtm->utc_offset != INT2FIX(0)) + t = wadd(t, v2w(vtm->utc_offset)); + + RB_GC_GUARD(time); + } + else if (RB_TYPE_P(time, T_STRUCT)) { +#define AREF(x) rb_struct_aref(time, ID2SYM(id_##x)) + EXTRACT_VTM(); +#undef AREF + } + else if (rb_integer_type_p(time)) { + t = v2w(time); + struct vtm temp_vtm = *vtm; + GMTIMEW(rb_time_magnify(t), &temp_vtm); + time_set_vtm(orig_time, orig_tobj, temp_vtm); + } + else { +#define AREF(x) rb_funcallv(time, id_##x, 0, 0) + EXTRACT_VTM(); +#undef AREF + } +#undef EXTRACT_VTM + + RB_OBJ_WRITE_UNALIGNED(orig_time, &vtm->subsecx, subsecx); + + validate_vtm(vtm); + return t; +} + +static void +zone_set_dst(VALUE zone, struct time_object *tobj, VALUE tm) +{ + ID id_dst_p; + VALUE dst; + CONST_ID(id_dst_p, "dst?"); + dst = rb_check_funcall(zone, id_dst_p, 1, &tm); + tobj->vtm.isdst = (!UNDEF_P(dst) && RTEST(dst)); +} + +static int +zone_timelocal(VALUE zone, VALUE time) +{ + VALUE utc, tm; + struct time_object *tobj = RTYPEDDATA_GET_DATA(time); + wideval_t t, s; + + wdivmod(tobj->timew, WINT2FIXWV(TIME_SCALE), &t, &s); + tm = tm_from_time(rb_cTimeTM, time); + utc = rb_check_funcall(zone, id_local_to_utc, 1, &tm); + if (UNDEF_P(utc)) return 0; + + s = extract_time(utc); + zone_set_offset(zone, tobj, t, s, time); + s = rb_time_magnify(s); + if (tobj->vtm.subsecx != INT2FIX(0)) { + s = wadd(s, v2w(tobj->vtm.subsecx)); + } + time_set_timew(time, tobj, s); + + zone_set_dst(zone, tobj, tm); + + RB_GC_GUARD(time); + + return 1; +} + +static int +zone_localtime(VALUE zone, VALUE time) +{ + VALUE local, tm, subsecx; + struct time_object *tobj = RTYPEDDATA_GET_DATA(time); + wideval_t t, s; + + split_second(tobj->timew, &t, &subsecx); + tm = tm_from_time(rb_cTimeTM, time); + + local = rb_check_funcall(zone, id_utc_to_local, 1, &tm); + if (UNDEF_P(local)) return 0; + + s = extract_vtm(local, time, tobj, subsecx); + tobj->vtm.tm_got = 1; + zone_set_offset(zone, tobj, s, t, time); + zone_set_dst(zone, tobj, tm); + + RB_GC_GUARD(time); + + return 1; +} + +static VALUE +find_timezone(VALUE time, VALUE zone) +{ + VALUE klass = CLASS_OF(time); + + return rb_check_funcall_default(klass, id_find_timezone, 1, &zone, Qnil); +} + +/* Turn the special case 24:00:00 of already validated vtm into + * 00:00:00 the next day */ +static void +vtm_day_wraparound(struct vtm *vtm) +{ + if (vtm->hour < 24) return; + + /* Assuming UTC and no care of DST, just reset hour and advance + * date, not to discard the validated vtm. */ + vtm->hour = 0; + vtm_add_day(vtm, 1); +} + +static VALUE time_init_vtm(VALUE time, struct vtm vtm, VALUE zone); /* - * call-seq: - * Time.new -> time - * - * Returns a <code>Time</code> object initialized to the current system - * time. <b>Note:</b> The object created will be created using the - * resolution available on your system clock, and so may include - * fractional seconds. - * - * a = Time.new #=> Wed Apr 09 08:56:03 CDT 2003 - * b = Time.new #=> Wed Apr 09 08:56:03 CDT 2003 - * a == b #=> false - * "%.6f" % a.to_f #=> "1049896563.230740" - * "%.6f" % b.to_f #=> "1049896563.231466" - * + * Sets the broken-out time information into _time_. + * Returns _time_. */ +static VALUE +time_init_args(rb_execution_context_t *ec, VALUE time, VALUE year, VALUE mon, VALUE mday, + VALUE hour, VALUE min, VALUE sec, VALUE zone) +{ + struct vtm vtm; + + vtm.wday = VTM_WDAY_INITVAL; + vtm.yday = 0; + vtm.zone = str_empty; + + vtm.year = obj2vint(year); + + vtm.mon = NIL_P(mon) ? 1 : month_arg(mon); + + vtm.mday = NIL_P(mday) ? 1 : obj2ubits(mday, 5); + + vtm.hour = NIL_P(hour) ? 0 : obj2ubits(hour, 5); + + vtm.min = NIL_P(min) ? 0 : obj2ubits(min, 6); + + if (NIL_P(sec)) { + vtm.sec = 0; + vtm.subsecx = INT2FIX(0); + } + else { + VALUE subsecx; + vtm.sec = obj2subsecx(sec, &subsecx); + vtm.subsecx = subsecx; + } + + return time_init_vtm(time, vtm, zone); +} static VALUE -time_init(VALUE time) +time_init_vtm(VALUE time, struct vtm vtm, VALUE zone) { + VALUE utc = Qnil; struct time_object *tobj; + vtm.isdst = VTM_ISDST_INITVAL; + vtm.utc_offset = Qnil; + const VALUE arg = zone; + if (!NIL_P(arg)) { + zone = Qnil; + if (arg == ID2SYM(rb_intern("dst"))) + vtm.isdst = 1; + else if (arg == ID2SYM(rb_intern("std"))) + vtm.isdst = 0; + else if (maybe_tzobj_p(arg)) + zone = arg; + else if (!NIL_P(utc = utc_offset_arg(arg))) + vtm.utc_offset = utc == UTC_ZONE ? INT2FIX(0) : utc; + else if (NIL_P(zone = find_timezone(time, arg))) + invalid_utc_offset(arg); + } + + validate_vtm(&vtm); + time_modify(time); - GetTimeval(time, tobj); - tobj->tm_got=0; - tobj->tv.tv_sec = 0; - tobj->tv.tv_usec = 0; - if (gettimeofday(&tobj->tv, 0) < 0) { - rb_sys_fail("gettimeofday"); + GetNewTimeval(time, tobj); + + if (!NIL_P(zone)) { + time_set_timew(time, tobj, timegmw(&vtm)); + vtm_day_wraparound(&vtm); + time_set_vtm(time, tobj, vtm); + tobj->vtm.tm_got = 1; + TZMODE_SET_LOCALTIME(tobj); + if (zone_timelocal(zone, time)) { + return time; + } + else if (NIL_P(vtm.utc_offset = utc_offset_arg(zone))) { + if (NIL_P(zone = find_timezone(time, zone)) || !zone_timelocal(zone, time)) + invalid_utc_offset(arg); + } } - return time; + if (utc == UTC_ZONE) { + time_set_timew(time, tobj, timegmw(&vtm)); + vtm.isdst = 0; /* No DST in UTC */ + vtm_day_wraparound(&vtm); + time_set_vtm(time, tobj, vtm); + tobj->vtm.tm_got = 1; + TZMODE_SET_UTC(tobj); + return time; + } + + TZMODE_SET_LOCALTIME(tobj); + tobj->vtm.tm_got=0; + + if (!NIL_P(vtm.utc_offset)) { + VALUE off = vtm.utc_offset; + vtm_add_offset(&vtm, off, -1); + vtm.utc_offset = Qnil; + time_set_timew(time, tobj, timegmw(&vtm)); + + return time_set_utc_offset(time, off); + } + else { + time_set_timew(time, tobj, timelocalw(&vtm)); + + return time_localtime(time); + } } -#define NDIV(x,y) (-(-((x)+1)/(y))-1) -#define NMOD(x,y) ((y)-(-((x)+1)%(y))-1) +static int +two_digits(const char *ptr, const char *end, const char **endp, const char *name) +{ + ssize_t len = end - ptr; + if (len < 2 || !have_2digits(ptr) || ((len > 2) && ISDIGIT(ptr[2]))) { + VALUE mesg = rb_sprintf("two digits %s is expected", name); + if (ptr[-1] == '-' || ptr[-1] == ':') { + rb_str_catf(mesg, " after '%c'", ptr[-1]); + } + rb_str_catf(mesg, ": %.*s", ((len > 10) ? 10 : (int)(end - ptr)) + 1, ptr - 1); + rb_exc_raise(rb_exc_new_str(rb_eArgError, mesg)); + } + *endp = ptr + 2; + return num_from_2digits(ptr); +} + +static VALUE +parse_int(const char *ptr, const char *end, const char **endp, size_t *ndigits, bool sign) +{ + ssize_t len = (end - ptr); + int flags = sign ? RB_INT_PARSE_SIGN : 0; + return rb_int_parse_cstr(ptr, len, (char **)endp, ndigits, 10, flags); +} + +/* + * Parses _str_ and sets the broken-out time information into _time_. + * If _str_ is not a String, returns +nil+, otherwise returns _time_. + */ +static VALUE +time_init_parse(rb_execution_context_t *ec, VALUE time, VALUE str, VALUE zone, VALUE precision) +{ + if (NIL_P(str = rb_check_string_type(str))) return Qnil; + if (!rb_enc_str_asciicompat_p(str)) { + rb_raise(rb_eArgError, "time string should have ASCII compatible encoding"); + } + + const char *const begin = RSTRING_PTR(str); + const char *const end = RSTRING_END(str); + const char *ptr = begin; + VALUE year = Qnil, subsec = Qnil; + int mon = -1, mday = -1, hour = -1, min = -1, sec = -1; + size_t ndigits; + size_t prec = NIL_P(precision) ? SIZE_MAX : NUM2SIZET(precision); + + if ((ptr < end) && (ISSPACE(*ptr) || ISSPACE(*(end-1)))) { + rb_raise(rb_eArgError, "can't parse: %+"PRIsVALUE, str); + } + year = parse_int(ptr, end, &ptr, &ndigits, true); + if (NIL_P(year)) { + rb_raise(rb_eArgError, "can't parse: %+"PRIsVALUE, str); + } + else if (ndigits < 4) { + rb_raise(rb_eArgError, "year must be 4 or more digits: %.*s", (int)ndigits, ptr - ndigits); + } + else if (ptr == end) { + goto only_year; + } + do { +#define peekable_p(n) ((ptrdiff_t)(n) < (end - ptr)) +#define peek_n(c, n) (peekable_p(n) && ((unsigned char)ptr[n] == (c))) +#define peek(c) peek_n(c, 0) +#define peekc_n(n) (peekable_p(n) ? (int)(unsigned char)ptr[n] : -1) +#define peekc() peekc_n(0) +#define expect_two_digits(x, bits) \ + (((unsigned int)(x = two_digits(ptr + 1, end, &ptr, #x)) > (1U << bits) - 1) ? \ + rb_raise(rb_eArgError, #x" out of range") : (void)0) + if (!peek('-')) break; + expect_two_digits(mon, 4); + if (!peek('-')) break; + expect_two_digits(mday, 5); + if (!peek(' ') && !peek('T')) break; + const char *const time_part = ptr + 1; + if (!ISDIGIT(peekc_n(1))) break; +#define nofraction(x) \ + if (peek('.')) { \ + rb_raise(rb_eArgError, "fraction " #x " is not supported: %.*s", \ + (int)(ptr + 1 - time_part), time_part); \ + } +#define need_colon(x) \ + if (!peek(':')) { \ + rb_raise(rb_eArgError, "missing " #x " part: %.*s", \ + (int)(ptr + 1 - time_part), time_part); \ + } + expect_two_digits(hour, 5); + nofraction(hour); + need_colon(min); + expect_two_digits(min, 6); + nofraction(min); + need_colon(sec); + expect_two_digits(sec, 6); + if (peek('.')) { + ptr++; + for (ndigits = 0; ndigits < prec && ISDIGIT(peekc_n(ndigits)); ++ndigits); + if (!ndigits) { + int clen = rb_enc_precise_mbclen(ptr, end, rb_enc_get(str)); + if (clen < 0) clen = 0; + rb_raise(rb_eArgError, "subsecond expected after dot: %.*s", + (int)(ptr - time_part) + clen, time_part); + } + subsec = parse_int(ptr, ptr + ndigits, &ptr, &ndigits, false); + if (NIL_P(subsec)) break; + while (ptr < end && ISDIGIT(*ptr)) ptr++; + } + } while (0); + while (ptr < end && ISSPACE(*ptr)) ptr++; + const char *const zstr = ptr; + while (ptr < end && !ISSPACE(*ptr)) ptr++; + const char *const zend = ptr; + while (ptr < end && ISSPACE(*ptr)) ptr++; + if (ptr < end) { + VALUE mesg = rb_str_new_cstr("can't parse at: "); + rb_str_cat(mesg, ptr, end - ptr); + rb_exc_raise(rb_exc_new_str(rb_eArgError, mesg)); + } + if (zend > zstr) { + zone = rb_str_subseq(str, zstr - begin, zend - zstr); + } + else if (hour == -1) { + rb_raise(rb_eArgError, "no time information"); + } + if (!NIL_P(subsec)) { + /* subseconds is the last using ndigits */ + if (ndigits < (size_t)TIME_SCALE_NUMDIGITS) { + VALUE mul = rb_int_positive_pow(10, TIME_SCALE_NUMDIGITS - ndigits); + subsec = rb_int_mul(subsec, mul); + } + else if (ndigits > (size_t)TIME_SCALE_NUMDIGITS) { + VALUE num = rb_int_positive_pow(10, ndigits - TIME_SCALE_NUMDIGITS); + subsec = rb_rational_new(subsec, num); + } + } + +only_year: + ; + + struct vtm vtm = { + .wday = VTM_WDAY_INITVAL, + .yday = 0, + .zone = str_empty, + .year = year, + .mon = (mon < 0) ? 1 : mon, + .mday = (mday < 0) ? 1 : mday, + .hour = (hour < 0) ? 0 : hour, + .min = (min < 0) ? 0 : min, + .sec = (sec < 0) ? 0 : sec, + .subsecx = NIL_P(subsec) ? INT2FIX(0) : subsec, + }; + return time_init_vtm(time, vtm, zone); +} static void -time_overflow_p(time_t *secp, time_t *usecp) -{ - time_t tmp, sec = *secp, usec = *usecp; - - if (usec >= 1000000) { /* usec positive overflow */ - tmp = sec + usec / 1000000; - usec %= 1000000; - if (sec > 0 && tmp < 0) { - rb_raise(rb_eRangeError, "out of Time range"); - } - sec = tmp; - } - if (usec < 0) { /* usec negative overflow */ - tmp = sec + NDIV(usec,1000000); /* negative div */ - usec = NMOD(usec,1000000); /* negative mod */ - if (sec < 0 && tmp > 0) { - rb_raise(rb_eRangeError, "out of Time range"); - } - sec = tmp; +subsec_normalize(wideint_t *secp, long *subsecp, const long maxsubsec) +{ + wideint_t sec = *secp; + long subsec = *subsecp; + long sec2; + + if (UNLIKELY(subsec >= maxsubsec)) { /* subsec positive overflow */ + sec2 = subsec / maxsubsec; + if (WIDEINT_MAX - sec2 < sec) { + rb_raise(rb_eRangeError, "out of Time range"); + } + subsec -= sec2 * maxsubsec; + sec += sec2; + } + else if (UNLIKELY(subsec < 0)) { /* subsec negative overflow */ + sec2 = NDIV(subsec, maxsubsec); /* negative div */ + if (sec < WIDEINT_MIN - sec2) { + rb_raise(rb_eRangeError, "out of Time range"); + } + subsec -= sec2 * maxsubsec; + sec += sec2; } -#ifndef NEGATIVE_TIME_T - if (sec < 0 || (sec == 0 && usec < 0)) - rb_raise(rb_eArgError, "time must be positive"); -#endif *secp = sec; - *usecp = usec; + *subsecp = subsec; } +#define time_usec_normalize(secp, usecp) subsec_normalize(secp, usecp, 1000000) +#define time_nsec_normalize(secp, nsecp) subsec_normalize(secp, nsecp, 1000000000) + static VALUE -time_new_internal(VALUE klass, time_t sec, time_t usec) +time_new_timew(VALUE klass, wideval_t timew) { VALUE time = time_s_alloc(klass); struct time_object *tobj; - GetTimeval(time, tobj); - time_overflow_p(&sec, &usec); - tobj->tv.tv_sec = sec; - tobj->tv.tv_usec = usec; + tobj = RTYPEDDATA_GET_DATA(time); /* skip type check */ + TZMODE_SET_LOCALTIME(tobj); + time_set_timew(time, tobj, timew); return time; } +static wideint_t +TIMETtoWIDEINT(time_t t) +{ +#if SIZEOF_TIME_T * CHAR_BIT - (SIGNEDNESS_OF_TIME_T < 0) > \ + SIZEOF_WIDEINT * CHAR_BIT - 1 + /* compare in bit size without sign bit */ + if (t > WIDEINT_MAX) rb_raise(rb_eArgError, "out of Time range"); +#endif + return (wideint_t)t; +} + VALUE -rb_time_new(time_t sec, time_t usec) +rb_time_new(time_t sec, long usec) { - return time_new_internal(rb_cTime, sec, usec); + wideint_t isec = TIMETtoWIDEINT(sec); + time_usec_normalize(&isec, &usec); + return time_new_timew(rb_cTime, timenano2timew(isec, usec * 1000)); } -static struct timeval -time_timeval(VALUE time, int interval) +/* returns localtime time object */ +VALUE +rb_time_nano_new(time_t sec, long nsec) { - struct timeval t; - const char *tstr = interval ? "time interval" : "time"; + wideint_t isec = TIMETtoWIDEINT(sec); + time_nsec_normalize(&isec, &nsec); + return time_new_timew(rb_cTime, timenano2timew(isec, nsec)); +} -#ifndef NEGATIVE_TIME_T - interval = 1; -#endif +VALUE +rb_time_timespec_new(const struct timespec *ts, int offset) +{ + struct time_object *tobj; + VALUE time = rb_time_nano_new(ts->tv_sec, ts->tv_nsec); - switch (TYPE(time)) { - case T_FIXNUM: - t.tv_sec = FIX2LONG(time); - if (interval && t.tv_sec < 0) - rb_raise(rb_eArgError, "%s must be positive", tstr); - t.tv_usec = 0; - break; - - case T_FLOAT: - if (interval && RFLOAT_VALUE(time) < 0.0) - rb_raise(rb_eArgError, "%s must be positive", tstr); - else { - double f, d; - - d = modf(RFLOAT_VALUE(time), &f); - t.tv_sec = (time_t)f; - if (f != t.tv_sec) { - rb_raise(rb_eRangeError, "%f out of Time range", RFLOAT_VALUE(time)); - } - t.tv_usec = (time_t)(d*1e6+0.5); - } - break; + if (-86400 < offset && offset < 86400) { /* fixoff */ + GetTimeval(time, tobj); + TZMODE_SET_FIXOFF(time, tobj, INT2FIX(offset)); + } + else if (offset == INT_MAX) { /* localtime */ + } + else if (offset == INT_MAX-1) { /* UTC */ + GetTimeval(time, tobj); + TZMODE_SET_UTC(tobj); + } + else { + rb_raise(rb_eArgError, "utc_offset out of range"); + } - case T_BIGNUM: - t.tv_sec = NUM2LONG(time); - if (interval && t.tv_sec < 0) - rb_raise(rb_eArgError, "%s must be positive", tstr); - t.tv_usec = 0; - break; + return time; +} - default: - rb_raise(rb_eTypeError, "can't convert %s into %s", - rb_obj_classname(time), tstr); - break; +VALUE +rb_time_num_new(VALUE timev, VALUE off) +{ + VALUE time = time_new_timew(rb_cTime, rb_time_magnify(v2w(timev))); + + if (!NIL_P(off)) { + VALUE zone = off; + + if (maybe_tzobj_p(zone)) { + time_gmtime(time); + if (zone_timelocal(zone, time)) return time; + } + if (NIL_P(off = utc_offset_arg(off))) { + off = zone; + if (NIL_P(zone = find_timezone(time, off))) invalid_utc_offset(off); + time_gmtime(time); + if (!zone_timelocal(zone, time)) invalid_utc_offset(off); + return time; + } + else if (off == UTC_ZONE) { + return time_gmtime(time); + } + + validate_utc_offset(off); + time_set_utc_offset(time, off); + return time; + } + + return time; +} + +static struct timespec +time_timespec(VALUE num, int interval) +{ + struct timespec t; + const char *const tstr = interval ? "time interval" : "time"; + VALUE i, f, ary; + +#ifndef NEGATIVE_TIME_T +# define arg_range_check(v) \ + (((v) < 0) ? \ + rb_raise(rb_eArgError, "%s must not be negative", tstr) : \ + (void)0) +#else +# define arg_range_check(v) \ + ((interval && (v) < 0) ? \ + rb_raise(rb_eArgError, "time interval must not be negative") : \ + (void)0) +#endif + + if (FIXNUM_P(num)) { + t.tv_sec = NUM2TIMET(num); + arg_range_check(t.tv_sec); + t.tv_nsec = 0; + } + else if (RB_FLOAT_TYPE_P(num)) { + double x = RFLOAT_VALUE(num); + arg_range_check(x); + { + double f, d; + + d = modf(x, &f); + if (d >= 0) { + t.tv_nsec = (int)(d*1e9+0.5); + if (t.tv_nsec >= 1000000000) { + t.tv_nsec -= 1000000000; + f += 1; + } + } + else if ((t.tv_nsec = (int)(-d*1e9+0.5)) > 0) { + t.tv_nsec = 1000000000 - t.tv_nsec; + f -= 1; + } + t.tv_sec = (time_t)f; + if (f != t.tv_sec) { + rb_raise(rb_eRangeError, "%f out of Time range", x); + } + } + } + else if (RB_BIGNUM_TYPE_P(num)) { + t.tv_sec = NUM2TIMET(num); + arg_range_check(t.tv_sec); + t.tv_nsec = 0; + } + else { + i = INT2FIX(1); + ary = rb_check_funcall(num, id_divmod, 1, &i); + if (!UNDEF_P(ary) && !NIL_P(ary = rb_check_array_type(ary))) { + i = rb_ary_entry(ary, 0); + f = rb_ary_entry(ary, 1); + t.tv_sec = NUM2TIMET(i); + arg_range_check(t.tv_sec); + f = rb_funcall(f, '*', 1, INT2FIX(1000000000)); + t.tv_nsec = NUM2LONG(f); + } + else { + rb_raise(rb_eTypeError, "can't convert %"PRIsVALUE" into %s", + rb_obj_class(num), tstr); + } } return t; +#undef arg_range_check +} + +static struct timeval +time_timeval(VALUE num, int interval) +{ + struct timespec ts; + struct timeval tv; + + ts = time_timespec(num, interval); + tv.tv_sec = (TYPEOF_TIMEVAL_TV_SEC)ts.tv_sec; + tv.tv_usec = (TYPEOF_TIMEVAL_TV_USEC)(ts.tv_nsec / 1000); + + return tv; } struct timeval -rb_time_interval(VALUE time) +rb_time_interval(VALUE num) { - return time_timeval(time, Qtrue); + return time_timeval(num, TRUE); } struct timeval @@ -213,220 +2956,336 @@ rb_time_timeval(VALUE time) { struct time_object *tobj; struct timeval t; - - if (TYPE(time) == T_DATA && RDATA(time)->dfree == time_free) { - GetTimeval(time, tobj); - t = tobj->tv; - return t; + struct timespec ts; + + if (IsTimeval(time)) { + GetTimeval(time, tobj); + ts = timew2timespec(tobj->timew); + t.tv_sec = (TYPEOF_TIMEVAL_TV_SEC)ts.tv_sec; + t.tv_usec = (TYPEOF_TIMEVAL_TV_USEC)(ts.tv_nsec / 1000); + return t; } - return time_timeval(time, Qfalse); + return time_timeval(time, FALSE); } -/* - * call-seq: - * Time.at( aTime ) => time - * Time.at( seconds [, microseconds] ) => time - * - * Creates a new time object with the value given by <i>aTime</i>, or - * the given number of <i>seconds</i> (and optional - * <i>microseconds</i>) from epoch. A non-portable feature allows the - * offset to be negative on some systems. - * - * Time.at(0) #=> Wed Dec 31 18:00:00 CST 1969 - * Time.at(946702800) #=> Fri Dec 31 23:00:00 CST 1999 - * Time.at(-284061600) #=> Sat Dec 31 00:00:00 CST 1960 - */ +struct timespec +rb_time_timespec(VALUE time) +{ + struct time_object *tobj; + struct timespec t; -static VALUE -time_s_at(int argc, VALUE *argv, VALUE klass) + if (IsTimeval(time)) { + GetTimeval(time, tobj); + t = timew2timespec(tobj->timew); + return t; + } + return time_timespec(time, FALSE); +} + +struct timespec +rb_time_timespec_interval(VALUE num) { - struct timeval tv; - VALUE time, t; + return time_timespec(num, TRUE); +} - if (rb_scan_args(argc, argv, "11", &time, &t) == 2) { - tv.tv_sec = NUM2LONG(time); - tv.tv_usec = NUM2LONG(t); +static int +get_scale(VALUE unit) +{ + if (unit == ID2SYM(id_nanosecond) || unit == ID2SYM(id_nsec)) { + return 1000000000; + } + else if (unit == ID2SYM(id_microsecond) || unit == ID2SYM(id_usec)) { + return 1000000; + } + else if (unit == ID2SYM(id_millisecond)) { + return 1000; } else { - tv = rb_time_timeval(time); + rb_raise(rb_eArgError, "unexpected unit: %"PRIsVALUE, unit); } - t = time_new_internal(klass, tv.tv_sec, tv.tv_usec); - if (TYPE(time) == T_DATA && RDATA(time)->dfree == time_free) { - struct time_object *tobj, *tobj2; +} - GetTimeval(time, tobj); - GetTimeval(t, tobj2); - tobj2->gmt = tobj->gmt; +static VALUE +time_s_at(rb_execution_context_t *ec, VALUE klass, VALUE time, VALUE subsec, VALUE unit, VALUE zone) +{ + VALUE t; + wideval_t timew; + + if (subsec) { + int scale = get_scale(unit); + time = num_exact(time); + t = num_exact(subsec); + timew = wadd(rb_time_magnify(v2w(time)), wmulquoll(v2w(t), TIME_SCALE, scale)); + t = time_new_timew(klass, timew); + } + else if (IsTimeval(time)) { + struct time_object *tobj, *tobj2; + GetTimeval(time, tobj); + t = time_new_timew(klass, tobj->timew); + GetTimeval(t, tobj2); + TZMODE_COPY(tobj2, tobj); + } + else { + timew = rb_time_magnify(v2w(num_exact(time))); + t = time_new_timew(klass, timew); + } + if (!NIL_P(zone)) { + time_zonelocal(t, zone); } + return t; } -static const char *months[] = { +static VALUE +time_s_at1(rb_execution_context_t *ec, VALUE klass, VALUE time) +{ + return time_s_at(ec, klass, time, Qfalse, ID2SYM(id_microsecond), Qnil); +} + +static const char months[][4] = { "jan", "feb", "mar", "apr", "may", "jun", "jul", "aug", "sep", "oct", "nov", "dec", }; -static long -obj2long(VALUE obj) +static int +obj2int(VALUE obj) { - if (TYPE(obj) == T_STRING) { - obj = rb_str_to_inum(obj, 10, Qfalse); + if (RB_TYPE_P(obj, T_STRING)) { + obj = rb_str_to_inum(obj, 10, TRUE); } - return NUM2LONG(obj); + return NUM2INT(obj); } -static void -time_arg(int argc, VALUE *argv, struct tm *tm, time_t *usec) +/* bits should be 0 <= x <= 31 */ +static uint32_t +obj2ubits(VALUE obj, unsigned int bits) { - VALUE v[8]; - int i; - long year; + const unsigned int usable_mask = (1U << bits) - 1; + unsigned int rv = (unsigned int)obj2int(obj); - MEMZERO(tm, struct tm, 1); - *usec = 0; - if (argc == 10) { - v[0] = argv[5]; - v[1] = argv[4]; - v[2] = argv[3]; - v[3] = argv[2]; - v[4] = argv[1]; - v[5] = argv[0]; - v[6] = Qnil; - tm->tm_isdst = RTEST(argv[8]) ? 1 : 0; + if ((rv & usable_mask) != rv) + rb_raise(rb_eArgError, "argument out of range"); + return (uint32_t)rv; +} + +static VALUE +obj2vint(VALUE obj) +{ + if (RB_TYPE_P(obj, T_STRING)) { + obj = rb_str_to_inum(obj, 10, TRUE); + } + else { + obj = rb_to_int(obj); + } + + return obj; +} + +static uint32_t +obj2subsecx(VALUE obj, VALUE *subsecx) +{ + VALUE subsec; + + if (RB_TYPE_P(obj, T_STRING)) { + obj = rb_str_to_inum(obj, 10, TRUE); + *subsecx = INT2FIX(0); } else { - rb_scan_args(argc, argv, "17", &v[0],&v[1],&v[2],&v[3],&v[4],&v[5],&v[6],&v[7]); - /* v[6] may be usec or zone (parsedate) */ - /* v[7] is wday (parsedate; ignored) */ - tm->tm_wday = -1; - tm->tm_isdst = -1; + divmodv(num_exact(obj), INT2FIX(1), &obj, &subsec); + *subsecx = w2v(rb_time_magnify(v2w(subsec))); } + return obj2ubits(obj, 6); /* vtm->sec */ +} + +static VALUE +usec2subsecx(VALUE obj) +{ + if (RB_TYPE_P(obj, T_STRING)) { + obj = rb_str_to_inum(obj, 10, TRUE); + } + + return mulquov(num_exact(obj), INT2FIX(TIME_SCALE), INT2FIX(1000000)); +} + +static uint32_t +month_arg(VALUE arg) +{ + int i, mon; - year = obj2long(v[0]); + if (FIXNUM_P(arg)) { + return obj2ubits(arg, 4); + } - if (0 <= year && year < 39) { - year += 100; - rb_warning("2 digits year is used"); + mon = 0; + VALUE s = rb_check_string_type(arg); + if (!NIL_P(s) && RSTRING_LEN(s) > 0) { + arg = s; + for (i=0; i<12; i++) { + if (RSTRING_LEN(s) == 3 && + STRNCASECMP(months[i], RSTRING_PTR(s), 3) == 0) { + mon = i+1; + break; + } + } } - else if (69 <= year && year < 139) { - rb_warning("2 or 3 digits year is used"); + if (mon == 0) { + mon = obj2ubits(arg, 4); + } + return mon; +} + +static VALUE +validate_utc_offset(VALUE utc_offset) +{ + if (le(utc_offset, INT2FIX(-86400)) || ge(utc_offset, INT2FIX(86400))) + rb_raise(rb_eArgError, "utc_offset out of range"); + return utc_offset; +} + +static VALUE +validate_zone_name(VALUE zone_name) +{ + StringValueCStr(zone_name); + return zone_name; +} + +static void +validate_vtm(struct vtm *vtm) +{ +#define validate_vtm_range(mem, b, e) \ + ((vtm->mem < b || vtm->mem > e) ? \ + rb_raise(rb_eArgError, #mem" out of range") : (void)0) + validate_vtm_range(mon, 1, 12); + validate_vtm_range(mday, 1, 31); + validate_vtm_range(hour, 0, 24); + validate_vtm_range(min, 0, (vtm->hour == 24 ? 0 : 59)); + validate_vtm_range(sec, 0, (vtm->hour == 24 ? 0 : 60)); + if (lt(vtm->subsecx, INT2FIX(0)) || ge(vtm->subsecx, INT2FIX(TIME_SCALE))) + rb_raise(rb_eArgError, "subsecx out of range"); + if (!NIL_P(vtm->utc_offset)) validate_utc_offset(vtm->utc_offset); +#undef validate_vtm_range +} + +static void +time_arg(int argc, const VALUE *argv, struct vtm *vtm) +{ + VALUE v[8]; + VALUE subsecx = INT2FIX(0); + + vtm->year = INT2FIX(0); + vtm->mon = 0; + vtm->mday = 0; + vtm->hour = 0; + vtm->min = 0; + vtm->sec = 0; + vtm->subsecx = INT2FIX(0); + vtm->utc_offset = Qnil; + vtm->wday = 0; + vtm->yday = 0; + vtm->isdst = 0; + vtm->zone = str_empty; + + if (argc == 10) { + v[0] = argv[5]; + v[1] = argv[4]; + v[2] = argv[3]; + v[3] = argv[2]; + v[4] = argv[1]; + v[5] = argv[0]; + v[6] = Qnil; + vtm->isdst = RTEST(argv[8]) ? 1 : 0; } else { - year -= 1900; + rb_scan_args(argc, argv, "17", &v[0],&v[1],&v[2],&v[3],&v[4],&v[5],&v[6],&v[7]); + /* v[6] may be usec or zone (parsedate) */ + /* v[7] is wday (parsedate; ignored) */ + vtm->wday = VTM_WDAY_INITVAL; + vtm->isdst = VTM_ISDST_INITVAL; } - tm->tm_year = year; + vtm->year = obj2vint(v[0]); if (NIL_P(v[1])) { - tm->tm_mon = 0; + vtm->mon = 1; } else { - VALUE s = rb_check_string_type(v[1]); - if (!NIL_P(s)) { - tm->tm_mon = -1; - for (i=0; i<12; i++) { - if (RSTRING_LEN(s) == 3 && - strcasecmp(months[i], RSTRING_PTR(v[1])) == 0) { - tm->tm_mon = i; - break; - } - } - if (tm->tm_mon == -1) { - char c = RSTRING_PTR(s)[0]; - - if ('0' <= c && c <= '9') { - tm->tm_mon = obj2long(s)-1; - } - } - } - else { - tm->tm_mon = obj2long(v[1])-1; - } + vtm->mon = month_arg(v[1]); } + if (NIL_P(v[2])) { - tm->tm_mday = 1; + vtm->mday = 1; } else { - tm->tm_mday = obj2long(v[2]); + vtm->mday = obj2ubits(v[2], 5); } - tm->tm_hour = NIL_P(v[3])?0:obj2long(v[3]); - tm->tm_min = NIL_P(v[4])?0:obj2long(v[4]); - tm->tm_sec = NIL_P(v[5])?0:obj2long(v[5]); - if (!NIL_P(v[6])) { - /* when argc == 8, v[6] is timezone, but ignored */ - if (argc == 7) { - *usec = obj2long(v[6]); - } + + /* normalize month-mday */ + switch (vtm->mon) { + case 2: + { + /* this drops higher bits but it's not a problem to calc leap year */ + unsigned int mday2 = leap_year_v_p(vtm->year) ? 29 : 28; + if (vtm->mday > mday2) { + vtm->mday -= mday2; + vtm->mon++; + } + } + break; + case 4: + case 6: + case 9: + case 11: + if (vtm->mday == 31) { + vtm->mon++; + vtm->mday = 1; + } + break; } - /* value validation */ - if ( - tm->tm_year != year || -#ifndef NEGATIVE_TIME_T - tm->tm_year < 69 || -#endif - tm->tm_mon < 0 || tm->tm_mon > 11 - || tm->tm_mday < 1 || tm->tm_mday > 31 - || tm->tm_hour < 0 || tm->tm_hour > 24 - || (tm->tm_hour == 24 && (tm->tm_min > 0 || tm->tm_sec > 0)) - || tm->tm_min < 0 || tm->tm_min > 59 - || tm->tm_sec < 0 || tm->tm_sec > 60) - rb_raise(rb_eArgError, "argument out of range"); -} + vtm->hour = NIL_P(v[3])?0:obj2ubits(v[3], 5); -static VALUE time_gmtime(VALUE); -static VALUE time_localtime(VALUE); -static VALUE time_get_tm(VALUE, int); + vtm->min = NIL_P(v[4])?0:obj2ubits(v[4], 6); + + if (!NIL_P(v[6]) && argc == 7) { + vtm->sec = NIL_P(v[5])?0:obj2ubits(v[5],6); + subsecx = usec2subsecx(v[6]); + } + else { + /* when argc == 8, v[6] is timezone, but ignored */ + if (NIL_P(v[5])) { + vtm->sec = 0; + } + else { + vtm->sec = obj2subsecx(v[5], &subsecx); + } + } + vtm->subsecx = subsecx; + + validate_vtm(vtm); + RB_GC_GUARD(subsecx); +} static int leap_year_p(long y) { - return ((y % 4 == 0) && (y % 100 != 0)) || (y % 400 == 0); -} + /* TODO: + * ensure about negative years in proleptic Gregorian calendar. + */ + unsigned long uy = (unsigned long)(LIKELY(y >= 0) ? y : -y); -#define DIV(n,d) ((n)<0 ? NDIV((n),(d)) : (n)/(d)) + if (LIKELY(uy % 4 != 0)) return 0; + + unsigned long century = uy / 100; + if (LIKELY(uy != century * 100)) return 1; + return century % 4 == 0; +} static time_t timegm_noleapsecond(struct tm *tm) { - static int common_year_yday_offset[] = { - -1, - -1 + 31, - -1 + 31 + 28, - -1 + 31 + 28 + 31, - -1 + 31 + 28 + 31 + 30, - -1 + 31 + 28 + 31 + 30 + 31, - -1 + 31 + 28 + 31 + 30 + 31 + 30, - -1 + 31 + 28 + 31 + 30 + 31 + 30 + 31, - -1 + 31 + 28 + 31 + 30 + 31 + 30 + 31 + 31, - -1 + 31 + 28 + 31 + 30 + 31 + 30 + 31 + 31 + 30, - -1 + 31 + 28 + 31 + 30 + 31 + 30 + 31 + 31 + 30 + 31, - -1 + 31 + 28 + 31 + 30 + 31 + 30 + 31 + 31 + 30 + 31 + 30 - /* 1 2 3 4 5 6 7 8 9 10 11 */ - }; - static int leap_year_yday_offset[] = { - -1, - -1 + 31, - -1 + 31 + 29, - -1 + 31 + 29 + 31, - -1 + 31 + 29 + 31 + 30, - -1 + 31 + 29 + 31 + 30 + 31, - -1 + 31 + 29 + 31 + 30 + 31 + 30, - -1 + 31 + 29 + 31 + 30 + 31 + 30 + 31, - -1 + 31 + 29 + 31 + 30 + 31 + 30 + 31 + 31, - -1 + 31 + 29 + 31 + 30 + 31 + 30 + 31 + 31 + 30, - -1 + 31 + 29 + 31 + 30 + 31 + 30 + 31 + 31 + 30 + 31, - -1 + 31 + 29 + 31 + 30 + 31 + 30 + 31 + 31 + 30 + 31 + 30 - /* 1 2 3 4 5 6 7 8 9 10 11 */ - }; - long tm_year = tm->tm_year; - int tm_yday = tm->tm_mday; - if (leap_year_p(tm_year + 1900)) - tm_yday += leap_year_yday_offset[tm->tm_mon]; - else - tm_yday += common_year_yday_offset[tm->tm_mon]; + int tm_yday = calc_tm_yday(tm->tm_year, tm->tm_mon, tm->tm_mday); /* * `Seconds Since the Epoch' in SUSv3: @@ -435,410 +3294,514 @@ timegm_noleapsecond(struct tm *tm) * ((tm_year-1)/100)*86400 + ((tm_year+299)/400)*86400 */ return tm->tm_sec + tm->tm_min*60 + tm->tm_hour*3600 + - (time_t)(tm_yday + - (tm_year-70)*365 + - DIV(tm_year-69,4) - - DIV(tm_year-1,100) + - DIV(tm_year+299,400))*86400; + (time_t)(tm_yday + + (tm_year-70)*365 + + DIV(tm_year-69,4) - + DIV(tm_year-1,100) + + DIV(tm_year+299,400))*86400; } -static int -tmcmp(struct tm *a, struct tm *b) +#if 0 +#define DEBUG_FIND_TIME_NUMGUESS +#define DEBUG_GUESSRANGE +#endif + +static const bool debug_guessrange = +#ifdef DEBUG_GUESSRANGE + true; +#else + false; +#endif + +#define DEBUG_REPORT_GUESSRANGE \ + (debug_guessrange ? debug_report_guessrange(guess_lo, guess_hi) : (void)0) + +static inline void +debug_report_guessrange(time_t guess_lo, time_t guess_hi) { - if (a->tm_year != b->tm_year) - return a->tm_year < b->tm_year ? -1 : 1; - else if (a->tm_mon != b->tm_mon) - return a->tm_mon < b->tm_mon ? -1 : 1; - else if (a->tm_mday != b->tm_mday) - return a->tm_mday < b->tm_mday ? -1 : 1; - else if (a->tm_hour != b->tm_hour) - return a->tm_hour < b->tm_hour ? -1 : 1; - else if (a->tm_min != b->tm_min) - return a->tm_min < b->tm_min ? -1 : 1; - else if (a->tm_sec != b->tm_sec) - return a->tm_sec < b->tm_sec ? -1 : 1; - else - return 0; + time_t guess_diff = guess_hi - guess_lo; + fprintf(stderr, "find time guess range: %"PRI_TIMET_PREFIX"d - " + "%"PRI_TIMET_PREFIX"d : %"PRI_TIMET_PREFIX"u\n", + guess_lo, guess_hi, guess_diff); } -#if SIZEOF_TIME_T == SIZEOF_LONG -typedef unsigned long unsigned_time_t; -#elif SIZEOF_TIME_T == SIZEOF_INT -typedef unsigned int unsigned_time_t; -#elif SIZEOF_TIME_T == SIZEOF_LONG_LONG -typedef unsigned LONG_LONG unsigned_time_t; +static const bool debug_find_time_numguess = +#ifdef DEBUG_FIND_TIME_NUMGUESS + true; #else -# error cannot find integer type which size is same as time_t. + false; #endif -static time_t -search_time_t(struct tm *tptr, int utc_p) +#define DEBUG_FIND_TIME_NUMGUESS_INC \ + (void)(debug_find_time_numguess && find_time_numguess++), +static unsigned long long find_time_numguess; + +static VALUE +find_time_numguess_getter(ID name, VALUE *data) +{ + unsigned long long *numguess = (void *)data; + return ULL2NUM(*numguess); +} + +static const char * +find_time_t(struct tm *tptr, int utc_p, time_t *tp) { - time_t guess, guess_lo, guess_hi; - struct tm *tm, tm_lo, tm_hi; - int d, have_guess; + time_t guess, guess0, guess_lo, guess_hi; + struct tm *tm, tm0, tm_lo, tm_hi; + int d; int find_dst; + struct tm result; + int status; + int tptr_tm_yday; + +#define GUESS(p) (DEBUG_FIND_TIME_NUMGUESS_INC (utc_p ? gmtime_with_leapsecond((p), &result) : LOCALTIME((p), result))) + + guess_lo = TIMET_MIN; + guess_hi = TIMET_MAX; find_dst = 0 < tptr->tm_isdst; -#ifdef NEGATIVE_TIME_T - guess_lo = (time_t)~((unsigned_time_t)~(time_t)0 >> 1); -#else - guess_lo = 0; -#endif - guess_hi = ((time_t)-1) < ((time_t)0) ? - (time_t)((unsigned_time_t)~(time_t)0 >> 1) : - ~(time_t)0; + /* /etc/localtime might be changed. reload it. */ + update_tz(); + + tm0 = *tptr; + if (tm0.tm_mon < 0) { + tm0.tm_mon = 0; + tm0.tm_mday = 1; + tm0.tm_hour = 0; + tm0.tm_min = 0; + tm0.tm_sec = 0; + } + else if (11 < tm0.tm_mon) { + tm0.tm_mon = 11; + tm0.tm_mday = 31; + tm0.tm_hour = 23; + tm0.tm_min = 59; + tm0.tm_sec = 60; + } + else if (tm0.tm_mday < 1) { + tm0.tm_mday = 1; + tm0.tm_hour = 0; + tm0.tm_min = 0; + tm0.tm_sec = 0; + } + else if ((d = days_in_month_in(1900 + tm0.tm_year)[tm0.tm_mon]) < tm0.tm_mday) { + tm0.tm_mday = d; + tm0.tm_hour = 23; + tm0.tm_min = 59; + tm0.tm_sec = 60; + } + else if (tm0.tm_hour < 0) { + tm0.tm_hour = 0; + tm0.tm_min = 0; + tm0.tm_sec = 0; + } + else if (23 < tm0.tm_hour) { + tm0.tm_hour = 23; + tm0.tm_min = 59; + tm0.tm_sec = 60; + } + else if (tm0.tm_min < 0) { + tm0.tm_min = 0; + tm0.tm_sec = 0; + } + else if (59 < tm0.tm_min) { + tm0.tm_min = 59; + tm0.tm_sec = 60; + } + else if (tm0.tm_sec < 0) { + tm0.tm_sec = 0; + } + else if (60 < tm0.tm_sec) { + tm0.tm_sec = 60; + } - guess = timegm_noleapsecond(tptr); - tm = (utc_p ? gmtime : localtime)(&guess); + DEBUG_REPORT_GUESSRANGE; + guess0 = guess = timegm_noleapsecond(&tm0); + tm = GUESS(&guess); if (tm) { - d = tmcmp(tptr, tm); - if (d == 0) return guess; - if (d < 0) { - guess_hi = guess; - guess -= 24 * 60 * 60; - } - else { - guess_lo = guess; - guess += 24 * 60 * 60; - } - if (guess_lo < guess && guess < guess_hi && - (tm = (utc_p ? gmtime : localtime)(&guess)) != NULL) { - d = tmcmp(tptr, tm); - if (d == 0) return guess; - if (d < 0) - guess_hi = guess; - else - guess_lo = guess; - } - } - - tm = (utc_p ? gmtime : localtime)(&guess_lo); + d = tmcmp(tptr, tm); + if (d == 0) { goto found; } + if (d < 0) { + guess_hi = guess; + guess -= 24 * 60 * 60; + } + else { + guess_lo = guess; + guess += 24 * 60 * 60; + } + DEBUG_REPORT_GUESSRANGE; + if (guess_lo < guess && guess < guess_hi && (tm = GUESS(&guess)) != NULL) { + d = tmcmp(tptr, tm); + if (d == 0) { goto found; } + if (d < 0) + guess_hi = guess; + else + guess_lo = guess; + DEBUG_REPORT_GUESSRANGE; + } + } + + tm = GUESS(&guess_lo); if (!tm) goto error; d = tmcmp(tptr, tm); if (d < 0) goto out_of_range; - if (d == 0) return guess_lo; + if (d == 0) { guess = guess_lo; goto found; } tm_lo = *tm; - tm = (utc_p ? gmtime : localtime)(&guess_hi); + tm = GUESS(&guess_hi); if (!tm) goto error; d = tmcmp(tptr, tm); if (d > 0) goto out_of_range; - if (d == 0) return guess_hi; + if (d == 0) { guess = guess_hi; goto found; } tm_hi = *tm; - have_guess = 0; + DEBUG_REPORT_GUESSRANGE; + + status = 1; while (guess_lo + 1 < guess_hi) { - /* there is a gap between guess_lo and guess_hi. */ - unsigned long range = 0; - if (!have_guess) { - int a, b; - /* - Try precious guess by a linear interpolation at first. - `a' and `b' is a coefficient of guess_lo and guess_hi as: - - guess = (guess_lo * a + guess_hi * b) / (a + b) - - However this causes overflow in most cases, following assignment - is used instead: - - guess = guess_lo / d * a + (guess_lo % d) * a / d - + guess_hi / d * b + (guess_hi % d) * b / d - where d = a + b - - To avoid overflow in this assignment, `d' is restricted to less than - sqrt(2**31). By this restriction and other reasons, the guess is - not accurate and some error is expected. `range' approximates - the maximum error. - - When these parameters are not suitable, i.e. guess is not within - guess_lo and guess_hi, simple guess by binary search is used. - */ - range = 366 * 24 * 60 * 60; - a = (tm_hi.tm_year - tptr->tm_year); - b = (tptr->tm_year - tm_lo.tm_year); - /* 46000 is selected as `some big number less than sqrt(2**31)'. */ - if (a + b <= 46000 / 12) { - range = 31 * 24 * 60 * 60; - a *= 12; - b *= 12; - a += tm_hi.tm_mon - tptr->tm_mon; - b += tptr->tm_mon - tm_lo.tm_mon; - if (a + b <= 46000 / 31) { - range = 24 * 60 * 60; - a *= 31; - b *= 31; - a += tm_hi.tm_mday - tptr->tm_mday; - b += tptr->tm_mday - tm_lo.tm_mday; - if (a + b <= 46000 / 24) { - range = 60 * 60; - a *= 24; - b *= 24; - a += tm_hi.tm_hour - tptr->tm_hour; - b += tptr->tm_hour - tm_lo.tm_hour; - if (a + b <= 46000 / 60) { - range = 60; - a *= 60; - b *= 60; - a += tm_hi.tm_min - tptr->tm_min; - b += tptr->tm_min - tm_lo.tm_min; - if (a + b <= 46000 / 60) { - range = 1; - a *= 60; - b *= 60; - a += tm_hi.tm_sec - tptr->tm_sec; - b += tptr->tm_sec - tm_lo.tm_sec; - } - } - } - } - } - if (a <= 0) a = 1; - if (b <= 0) b = 1; - d = a + b; - /* - Although `/' and `%' may produce unexpected result with negative - argument, it doesn't cause serious problem because there is a - fail safe. - */ - guess = guess_lo / d * a + (guess_lo % d) * a / d - + guess_hi / d * b + (guess_hi % d) * b / d; - have_guess = 1; - } - - if (guess <= guess_lo || guess_hi <= guess) { - /* Precious guess is invalid. try binary search. */ - guess = guess_lo / 2 + guess_hi / 2; - if (guess <= guess_lo) - guess = guess_lo + 1; - else if (guess >= guess_hi) - guess = guess_hi - 1; - range = 0; - } - - tm = (utc_p ? gmtime : localtime)(&guess); - if (!tm) goto error; - have_guess = 0; - - d = tmcmp(tptr, tm); - if (d < 0) { - guess_hi = guess; - tm_hi = *tm; - if (range) { - guess = guess - range; - range = 0; - if (guess_lo < guess && guess < guess_hi) - have_guess = 1; - } - } - else if (d > 0) { - guess_lo = guess; - tm_lo = *tm; - if (range) { - guess = guess + range; - range = 0; - if (guess_lo < guess && guess < guess_hi) - have_guess = 1; - } - } - else { - if (!utc_p) { - /* If localtime is nonmonotonic, another result may exist. */ - time_t guess2; - if (find_dst) { - guess2 = guess - 2 * 60 * 60; - tm = localtime(&guess2); - if (tm) { - if (tptr->tm_hour != (tm->tm_hour + 2) % 24 || - tptr->tm_min != tm->tm_min || - tptr->tm_sec != tm->tm_sec - ) { - guess2 -= (tm->tm_hour - tptr->tm_hour) * 60 * 60 + - (tm->tm_min - tptr->tm_min) * 60 + - (tm->tm_sec - tptr->tm_sec); - if (tptr->tm_mday != tm->tm_mday) - guess2 += 24 * 60 * 60; - if (guess != guess2) { - tm = localtime(&guess2); - if (tmcmp(tptr, tm) == 0) { - if (guess < guess2) - return guess; - else - return guess2; - } - } - } - } - } - else { - guess2 = guess + 2 * 60 * 60; - tm = localtime(&guess2); - if (tm) { - if ((tptr->tm_hour + 2) % 24 != tm->tm_hour || - tptr->tm_min != tm->tm_min || - tptr->tm_sec != tm->tm_sec - ) { - guess2 -= (tm->tm_hour - tptr->tm_hour) * 60 * 60 + - (tm->tm_min - tptr->tm_min) * 60 + - (tm->tm_sec - tptr->tm_sec); - if (tptr->tm_mday != tm->tm_mday) - guess2 -= 24 * 60 * 60; - if (guess != guess2) { - tm = localtime(&guess2); - if (tmcmp(tptr, tm) == 0) { - if (guess < guess2) - return guess2; - else - return guess; - } - } - } - } - } - } - return guess; - } - } - /* Given argument has no corresponding time_t. Let's outerpolation. */ - if (tm_lo.tm_year == tptr->tm_year && tm_lo.tm_mon == tptr->tm_mon) { - return guess_lo + - (tptr->tm_mday - tm_lo.tm_mday) * 24 * 60 * 60 + - (tptr->tm_hour - tm_lo.tm_hour) * 60 * 60 + - (tptr->tm_min - tm_lo.tm_min) * 60 + - (tptr->tm_sec - tm_lo.tm_sec); - } - else if (tm_hi.tm_year == tptr->tm_year && tm_hi.tm_mon == tptr->tm_mon) { - return guess_hi + - (tptr->tm_mday - tm_hi.tm_mday) * 24 * 60 * 60 + - (tptr->tm_hour - tm_hi.tm_hour) * 60 * 60 + - (tptr->tm_min - tm_hi.tm_min) * 60 + - (tptr->tm_sec - tm_hi.tm_sec); + binsearch: + if (status == 0) { + guess = guess_lo / 2 + guess_hi / 2; + if (guess <= guess_lo) + guess = guess_lo + 1; + else if (guess >= guess_hi) + guess = guess_hi - 1; + status = 1; + } + else { + if (status == 1) { + time_t guess0_hi = timegm_noleapsecond(&tm_hi); + guess = guess_hi - (guess0_hi - guess0); + if (guess == guess_hi) /* hh:mm:60 tends to cause this condition. */ + guess--; + status = 2; + } + else if (status == 2) { + time_t guess0_lo = timegm_noleapsecond(&tm_lo); + guess = guess_lo + (guess0 - guess0_lo); + if (guess == guess_lo) + guess++; + status = 0; + } + if (guess <= guess_lo || guess_hi <= guess) { + /* Previous guess is invalid. try binary search. */ + if (debug_guessrange) { + if (guess <= guess_lo) { + fprintf(stderr, "too small guess: %"PRI_TIMET_PREFIX"d"\ + " <= %"PRI_TIMET_PREFIX"d\n", guess, guess_lo); + } + if (guess_hi <= guess) { + fprintf(stderr, "too big guess: %"PRI_TIMET_PREFIX"d"\ + " <= %"PRI_TIMET_PREFIX"d\n", guess_hi, guess); + } + } + status = 0; + goto binsearch; + } + } + + tm = GUESS(&guess); + if (!tm) goto error; + + d = tmcmp(tptr, tm); + + if (d < 0) { + guess_hi = guess; + tm_hi = *tm; + DEBUG_REPORT_GUESSRANGE; + } + else if (d > 0) { + guess_lo = guess; + tm_lo = *tm; + DEBUG_REPORT_GUESSRANGE; + } + else { + goto found; + } + } + + /* Given argument has no corresponding time_t. Let's extrapolate. */ + /* + * `Seconds Since the Epoch' in SUSv3: + * tm_sec + tm_min*60 + tm_hour*3600 + tm_yday*86400 + + * (tm_year-70)*31536000 + ((tm_year-69)/4)*86400 - + * ((tm_year-1)/100)*86400 + ((tm_year+299)/400)*86400 + */ + + tptr_tm_yday = calc_tm_yday(tptr->tm_year, tptr->tm_mon, tptr->tm_mday); + + *tp = guess_lo + + ((tptr->tm_year - tm_lo.tm_year) * 365 + + DIV((tptr->tm_year-69), 4) - + DIV((tptr->tm_year-1), 100) + + DIV((tptr->tm_year+299), 400) - + DIV((tm_lo.tm_year-69), 4) + + DIV((tm_lo.tm_year-1), 100) - + DIV((tm_lo.tm_year+299), 400) + + tptr_tm_yday - + tm_lo.tm_yday) * 86400 + + (tptr->tm_hour - tm_lo.tm_hour) * 3600 + + (tptr->tm_min - tm_lo.tm_min) * 60 + + (tptr->tm_sec - (tm_lo.tm_sec == 60 ? 59 : tm_lo.tm_sec)); + + return NULL; + + found: + if (!utc_p) { + /* If localtime is nonmonotonic, another result may exist. */ + time_t guess2; + if (find_dst) { + guess2 = guess - 2 * 60 * 60; + tm = LOCALTIME(&guess2, result); + if (tm) { + if (tptr->tm_hour != (tm->tm_hour + 2) % 24 || + tptr->tm_min != tm->tm_min || + tptr->tm_sec != tm->tm_sec) { + guess2 -= (tm->tm_hour - tptr->tm_hour) * 60 * 60 + + (tm->tm_min - tptr->tm_min) * 60 + + (tm->tm_sec - tptr->tm_sec); + if (tptr->tm_mday != tm->tm_mday) + guess2 += 24 * 60 * 60; + if (guess != guess2) { + tm = LOCALTIME(&guess2, result); + if (tm && tmcmp(tptr, tm) == 0) { + if (guess < guess2) + *tp = guess; + else + *tp = guess2; + return NULL; + } + } + } + } + } + else { + guess2 = guess + 2 * 60 * 60; + tm = LOCALTIME(&guess2, result); + if (tm) { + if ((tptr->tm_hour + 2) % 24 != tm->tm_hour || + tptr->tm_min != tm->tm_min || + tptr->tm_sec != tm->tm_sec) { + guess2 -= (tm->tm_hour - tptr->tm_hour) * 60 * 60 + + (tm->tm_min - tptr->tm_min) * 60 + + (tm->tm_sec - tptr->tm_sec); + if (tptr->tm_mday != tm->tm_mday) + guess2 -= 24 * 60 * 60; + if (guess != guess2) { + tm = LOCALTIME(&guess2, result); + if (tm && tmcmp(tptr, tm) == 0) { + if (guess < guess2) + *tp = guess2; + else + *tp = guess; + return NULL; + } + } + } + } + } } + *tp = guess; + return NULL; out_of_range: - rb_raise(rb_eArgError, "time out of range"); + return "time out of range"; error: - rb_raise(rb_eArgError, "gmtime/localtime error"); - return 0; /* not reached */ + return "gmtime/localtime error"; } -static time_t -make_time_t(struct tm *tptr, int utc_p) +static int +vtmcmp(struct vtm *a, struct vtm *b) { - time_t t; - struct tm *tmp, buf; - buf = *tptr; - if (utc_p) { -#if defined(HAVE_TIMEGM) - if ((t = timegm(&buf)) != -1) - return t; -#ifdef NEGATIVE_TIME_T - if ((tmp = gmtime(&t)) && - tptr->tm_year == tmp->tm_year && - tptr->tm_mon == tmp->tm_mon && - tptr->tm_mday == tmp->tm_mday && - tptr->tm_hour == tmp->tm_hour && - tptr->tm_min == tmp->tm_min && - tptr->tm_sec == tmp->tm_sec - ) - return t; -#endif -#endif - return search_time_t(&buf, utc_p); - } - else { -#if defined(HAVE_MKTIME) - if ((t = mktime(&buf)) != -1) - return t; -#ifdef NEGATIVE_TIME_T - if ((tmp = localtime(&t)) && - tptr->tm_year == tmp->tm_year && - tptr->tm_mon == tmp->tm_mon && - tptr->tm_mday == tmp->tm_mday && - tptr->tm_hour == tmp->tm_hour && - tptr->tm_min == tmp->tm_min && - tptr->tm_sec == tmp->tm_sec - ) - return t; -#endif -#endif - return search_time_t(&buf, utc_p); - } + if (ne(a->year, b->year)) + return lt(a->year, b->year) ? -1 : 1; + else if (a->mon != b->mon) + return a->mon < b->mon ? -1 : 1; + else if (a->mday != b->mday) + return a->mday < b->mday ? -1 : 1; + else if (a->hour != b->hour) + return a->hour < b->hour ? -1 : 1; + else if (a->min != b->min) + return a->min < b->min ? -1 : 1; + else if (a->sec != b->sec) + return a->sec < b->sec ? -1 : 1; + else if (ne(a->subsecx, b->subsecx)) + return lt(a->subsecx, b->subsecx) ? -1 : 1; + else + return 0; } -static VALUE -time_utc_or_local(int argc, VALUE *argv, int utc_p, VALUE klass) +static int +tmcmp(struct tm *a, struct tm *b) { - struct tm tm; - VALUE time; - time_t usec; - - time_arg(argc, argv, &tm, &usec); - time = time_new_internal(klass, make_time_t(&tm, utc_p), usec); - if (utc_p) return time_gmtime(time); - return time_localtime(time); + if (a->tm_year != b->tm_year) + return a->tm_year < b->tm_year ? -1 : 1; + else if (a->tm_mon != b->tm_mon) + return a->tm_mon < b->tm_mon ? -1 : 1; + else if (a->tm_mday != b->tm_mday) + return a->tm_mday < b->tm_mday ? -1 : 1; + else if (a->tm_hour != b->tm_hour) + return a->tm_hour < b->tm_hour ? -1 : 1; + else if (a->tm_min != b->tm_min) + return a->tm_min < b->tm_min ? -1 : 1; + else if (a->tm_sec != b->tm_sec) + return a->tm_sec < b->tm_sec ? -1 : 1; + else + return 0; } /* - * call-seq: - * Time.utc( year [, month, day, hour, min, sec, usec] ) => time - * Time.utc( sec, min, hour, day, month, year, wday, yday, isdst, tz - * ) => time - * Time.gm( year [, month, day, hour, min, sec, usec] ) => time - * Time.gm( sec, min, hour, day, month, year, wday, yday, isdst, tz - * ) => time - * - * Creates a time based on given values, interpreted as UTC (GMT). The - * year must be specified. Other values default to the minimum value - * for that field (and may be <code>nil</code> or omitted). Months may - * be specified by numbers from 1 to 12, or by the three-letter English - * month names. Hours are specified on a 24-hour clock (0..23). Raises - * an <code>ArgumentError</code> if any values are out of range. Will - * also accept ten arguments in the order output by - * <code>Time#to_a</code>. - * - * Time.utc(2000,"jan",1,20,15,1) #=> Sat Jan 01 20:15:01 UTC 2000 - * Time.gm(2000,"jan",1,20,15,1) #=> Sat Jan 01 20:15:01 UTC 2000 + * call-seq: + * Time.utc(year, month = 1, mday = 1, hour = 0, min = 0, sec = 0, usec = 0) -> new_time + * Time.utc(sec, min, hour, mday, month, year, dummy, dummy, dummy, dummy) -> new_time + * + * Returns a new +Time+ object based the on given arguments, + * in the UTC timezone. + * + * With one to seven arguments given, + * the arguments are interpreted as in the first calling sequence above: + * + * Time.utc(year, month = 1, mday = 1, hour = 0, min = 0, sec = 0, usec = 0) + * + * Examples: + * + * Time.utc(2000) # => 2000-01-01 00:00:00 UTC + * Time.utc(-2000) # => -2000-01-01 00:00:00 UTC + * + * There are no minimum and maximum values for the required argument +year+. + * + * For the optional arguments: + * + * - +month+: Month in range (1..12), or case-insensitive + * 3-letter month name: + * + * Time.utc(2000, 1) # => 2000-01-01 00:00:00 UTC + * Time.utc(2000, 12) # => 2000-12-01 00:00:00 UTC + * Time.utc(2000, 'jan') # => 2000-01-01 00:00:00 UTC + * Time.utc(2000, 'JAN') # => 2000-01-01 00:00:00 UTC + * + * - +mday+: Month day in range(1..31): + * + * Time.utc(2000, 1, 1) # => 2000-01-01 00:00:00 UTC + * Time.utc(2000, 1, 31) # => 2000-01-31 00:00:00 UTC + * + * - +hour+: Hour in range (0..23), or 24 if +min+, +sec+, and +usec+ + * are zero: + * + * Time.utc(2000, 1, 1, 0) # => 2000-01-01 00:00:00 UTC + * Time.utc(2000, 1, 1, 23) # => 2000-01-01 23:00:00 UTC + * Time.utc(2000, 1, 1, 24) # => 2000-01-02 00:00:00 UTC + * + * - +min+: Minute in range (0..59): + * + * Time.utc(2000, 1, 1, 0, 0) # => 2000-01-01 00:00:00 UTC + * Time.utc(2000, 1, 1, 0, 59) # => 2000-01-01 00:59:00 UTC + * + * - +sec+: Second in range (0..59), or 60 if +usec+ is zero: + * + * Time.utc(2000, 1, 1, 0, 0, 0) # => 2000-01-01 00:00:00 UTC + * Time.utc(2000, 1, 1, 0, 0, 59) # => 2000-01-01 00:00:59 UTC + * Time.utc(2000, 1, 1, 0, 0, 60) # => 2000-01-01 00:01:00 UTC + * + * - +usec+: Microsecond in range (0..999999): + * + * Time.utc(2000, 1, 1, 0, 0, 0, 0) # => 2000-01-01 00:00:00 UTC + * Time.utc(2000, 1, 1, 0, 0, 0, 999999) # => 2000-01-01 00:00:00.999999 UTC + * + * The values may be: + * + * - Integers, as above. + * - Numerics convertible to integers: + * + * Time.utc(Float(0.0), Rational(1, 1), 1.0, 0.0, 0.0, 0.0, 0.0) + * # => 0000-01-01 00:00:00 UTC + * + * - String integers: + * + * a = %w[0 1 1 0 0 0 0 0] + * # => ["0", "1", "1", "0", "0", "0", "0", "0"] + * Time.utc(*a) # => 0000-01-01 00:00:00 UTC + * + * When exactly ten arguments are given, + * the arguments are interpreted as in the second calling sequence above: + * + * Time.utc(sec, min, hour, mday, month, year, dummy, dummy, dummy, dummy) + * + * where the +dummy+ arguments are ignored: + * + * a = [0, 1, 2, 3, 4, 5, 6, 7, 8, 9] + * # => [0, 1, 2, 3, 4, 5, 6, 7, 8, 9] + * Time.utc(*a) # => 0005-04-03 02:01:00 UTC + * + * This form is useful for creating a +Time+ object from a 10-element + * array returned by Time.to_a: + * + * t = Time.new(2000, 1, 2, 3, 4, 5, 6) # => 2000-01-02 03:04:05 +000006 + * a = t.to_a # => [5, 4, 3, 2, 1, 2000, 0, 2, false, nil] + * Time.utc(*a) # => 2000-01-02 03:04:05 UTC + * + * The two forms have their first six arguments in common, + * though in different orders; + * the ranges of these common arguments are the same for both forms; see above. + * + * Raises an exception if the number of arguments is eight, nine, + * or greater than ten. + * + * Related: Time.local. + * */ static VALUE time_s_mkutc(int argc, VALUE *argv, VALUE klass) { - return time_utc_or_local(argc, argv, Qtrue, klass); + struct vtm vtm; + + time_arg(argc, argv, &vtm); + return time_gmtime(time_new_timew(klass, timegmw(&vtm))); } /* - * call-seq: - * Time.local( year [, month, day, hour, min, sec, usec] ) => time - * Time.local( sec, min, hour, day, month, year, wday, yday, isdst, - * tz ) => time - * Time.mktime( year, month, day, hour, min, sec, usec ) => time - * - * Same as <code>Time::gm</code>, but interprets the values in the - * local time zone. - * - * Time.local(2000,"jan",1,20,15,1) #=> Sat Jan 01 20:15:01 CST 2000 + * call-seq: + * Time.local(year, month = 1, mday = 1, hour = 0, min = 0, sec = 0, usec = 0) -> new_time + * Time.local(sec, min, hour, mday, month, year, dummy, dummy, dummy, dummy) -> new_time + * + * Like Time.utc, except that the returned +Time+ object + * has the local timezone, not the UTC timezone: + * + * # With seven arguments. + * Time.local(0, 1, 2, 3, 4, 5, 6) + * # => 0000-01-02 03:04:05.000006 -0600 + * # With exactly ten arguments. + * Time.local(0, 1, 2, 3, 4, 5, 6, 7, 8, 9) + * # => 0005-04-03 02:01:00 -0600 + * */ static VALUE time_s_mktime(int argc, VALUE *argv, VALUE klass) { - return time_utc_or_local(argc, argv, Qfalse, klass); + struct vtm vtm; + + time_arg(argc, argv, &vtm); + return time_localtime(time_new_timew(klass, timelocalw(&vtm))); } /* * call-seq: - * time.to_i => int - * time.tv_sec => int - * - * Returns the value of <i>time</i> as an integer number of seconds - * since epoch. - * - * t = Time.now - * "%10.5f" % t.to_f #=> "1049896564.17839" - * t.to_i #=> 1049896564 + * to_i -> integer + * + * Returns the value of +self+ as integer + * {Epoch seconds}[rdoc-ref:Time@Epoch+Seconds]; + * subseconds are truncated (not rounded): + * + * Time.utc(1970, 1, 1, 0, 0, 0).to_i # => 0 + * Time.utc(1970, 1, 1, 0, 0, 0, 999999).to_i # => 0 + * Time.utc(1950, 1, 1, 0, 0, 0).to_i # => -631152000 + * Time.utc(1990, 1, 1, 0, 0, 0).to_i # => 631152000 + * + * Related: Time#to_f Time#to_r. */ static VALUE @@ -847,19 +3810,27 @@ time_to_i(VALUE time) struct time_object *tobj; GetTimeval(time, tobj); - return LONG2NUM(tobj->tv.tv_sec); + return w2v(wdiv(tobj->timew, WINT2FIXWV(TIME_SCALE))); } /* * call-seq: - * time.to_f => float - * - * Returns the value of <i>time</i> as a floating point number of - * seconds since epoch. - * - * t = Time.now - * "%10.5f" % t.to_f #=> "1049896564.13654" - * t.to_i #=> 1049896564 + * to_f -> float + * + * Returns the value of +self+ as a Float number + * {Epoch seconds}[rdoc-ref:Time@Epoch+Seconds]; + * subseconds are included. + * + * The stored value of +self+ is a + * {Rational}[rdoc-ref:Rational@#method-i-to_f], + * which means that the returned value may be approximate: + * + * Time.utc(1970, 1, 1, 0, 0, 0).to_f # => 0.0 + * Time.utc(1970, 1, 1, 0, 0, 0, 999999).to_f # => 0.999999 + * Time.utc(1950, 1, 1, 0, 0, 0).to_f # => -631152000.0 + * Time.utc(1990, 1, 1, 0, 0, 0).to_f # => 631152000.0 + * + * Related: Time#to_i, Time#to_r. */ static VALUE @@ -868,73 +3839,164 @@ time_to_f(VALUE time) struct time_object *tobj; GetTimeval(time, tobj); - return DOUBLE2NUM((double)tobj->tv.tv_sec+(double)tobj->tv.tv_usec/1e6); + return rb_Float(rb_time_unmagnify_to_float(tobj->timew)); +} + +/* + * call-seq: + * to_r -> rational + * + * Returns the value of +self+ as a Rational exact number of + * {Epoch seconds}[rdoc-ref:Time@Epoch+Seconds]; + * + * Time.now.to_r # => (16571402750320203/10000000) + * + * Related: Time#to_f, Time#to_i. + */ + +static VALUE +time_to_r(VALUE time) +{ + struct time_object *tobj; + VALUE v; + + GetTimeval(time, tobj); + v = rb_time_unmagnify_to_rational(tobj->timew); + if (!RB_TYPE_P(v, T_RATIONAL)) { + v = rb_Rational1(v); + } + return v; } /* * call-seq: - * time.usec => int - * time.tv_usec => int - * - * Returns just the number of microseconds for <i>time</i>. - * - * t = Time.now #=> Wed Apr 09 08:56:04 CDT 2003 - * "%10.6f" % t.to_f #=> "1049896564.259970" - * t.usec #=> 259970 + * usec -> integer + * + * Returns the number of microseconds in the subseconds part of +self+ + * in the range (0..999_999); + * lower-order digits are truncated, not rounded: + * + * t = Time.now # => 2022-07-11 14:59:47.5484697 -0500 + * t.usec # => 548469 + * + * Related: Time#subsec (returns exact subseconds). */ static VALUE time_usec(VALUE time) { struct time_object *tobj; + wideval_t w, q, r; GetTimeval(time, tobj); - return LONG2NUM(tobj->tv.tv_usec); + + w = wmod(tobj->timew, WINT2WV(TIME_SCALE)); + wmuldivmod(w, WINT2FIXWV(1000000), WINT2FIXWV(TIME_SCALE), &q, &r); + return rb_to_int(w2v(q)); } /* * call-seq: - * time <=> other_time => -1, 0, +1 - * time <=> numeric => -1, 0, +1 - * - * Comparison---Compares <i>time</i> with <i>other_time</i> or with - * <i>numeric</i>, which is the number of seconds (possibly - * fractional) since epoch. - * - * t = Time.now #=> Wed Apr 09 08:56:03 CDT 2003 - * t2 = t + 2592000 #=> Fri May 09 08:56:03 CDT 2003 - * t <=> t2 #=> -1 - * t2 <=> t #=> 1 - * t <=> t #=> 0 + * nsec -> integer + * + * Returns the number of nanoseconds in the subseconds part of +self+ + * in the range (0..999_999_999); + * lower-order digits are truncated, not rounded: + * + * t = Time.now # => 2022-07-11 15:04:53.3219637 -0500 + * t.nsec # => 321963700 + * + * Related: Time#subsec (returns exact subseconds). + */ + +static VALUE +time_nsec(VALUE time) +{ + struct time_object *tobj; + + GetTimeval(time, tobj); + return rb_to_int(w2v(wmulquoll(wmod(tobj->timew, WINT2WV(TIME_SCALE)), 1000000000, TIME_SCALE))); +} + +/* + * call-seq: + * subsec -> numeric + * + * Returns the exact subseconds for +self+ as a Numeric + * (Integer or Rational): + * + * t = Time.now # => 2022-07-11 15:11:36.8490302 -0500 + * t.subsec # => (4245151/5000000) + * + * If the subseconds is zero, returns integer zero: + * + * t = Time.new(2000, 1, 1, 2, 3, 4) # => 2000-01-01 02:03:04 -0600 + * t.subsec # => 0 + * + */ + +static VALUE +time_subsec(VALUE time) +{ + struct time_object *tobj; + + GetTimeval(time, tobj); + return quov(w2v(wmod(tobj->timew, WINT2FIXWV(TIME_SCALE))), INT2FIX(TIME_SCALE)); +} + +/* + * call-seq: + * self <=> other_time -> -1, 0, +1, or nil + * + * Compares +self+ with +other_time+; returns: + * + * - +-1+, if +self+ is less than +other_time+. + * - +0+, if +self+ is equal to +other_time+. + * - +1+, if +self+ is greater then +other_time+. + * - +nil+, if +self+ and +other_time+ are incomparable. + * + * Examples: + * + * t = Time.now # => 2007-11-19 08:12:12 -0600 + * t2 = t + 2592000 # => 2007-12-19 08:12:12 -0600 + * t <=> t2 # => -1 + * t2 <=> t # => 1 + * + * t = Time.now # => 2007-11-19 08:13:38 -0600 + * t2 = t + 0.1 # => 2007-11-19 08:13:38 -0600 + * t.nsec # => 98222999 + * t2.nsec # => 198222999 + * t <=> t2 # => -1 + * t2 <=> t # => 1 + * t <=> t # => 0 + * */ static VALUE time_cmp(VALUE time1, VALUE time2) { struct time_object *tobj1, *tobj2; + int n; GetTimeval(time1, tobj1); - if (TYPE(time2) == T_DATA && RDATA(time2)->dfree == time_free) { - GetTimeval(time2, tobj2); - if (tobj1->tv.tv_sec == tobj2->tv.tv_sec) { - if (tobj1->tv.tv_usec == tobj2->tv.tv_usec) return INT2FIX(0); - if (tobj1->tv.tv_usec > tobj2->tv.tv_usec) return INT2FIX(1); - return INT2FIX(-1); - } - if (tobj1->tv.tv_sec > tobj2->tv.tv_sec) return INT2FIX(1); - return INT2FIX(-1); + if (IsTimeval(time2)) { + GetTimeval(time2, tobj2); + n = wcmp(tobj1->timew, tobj2->timew); } - - return Qnil; + else { + return rb_invcmp(time1, time2); + } + if (n == 0) return INT2FIX(0); + if (n > 0) return INT2FIX(1); + return INT2FIX(-1); } /* * call-seq: - * time.eql?(other_time) + * eql?(other_time) * - * Return <code>true</code> if <i>time</i> and <i>other_time</i> are - * both <code>Time</code> objects with the same seconds and fractional - * seconds. + * Returns +true+ if +self+ and +other_time+ are + * both +Time+ objects with the exact same time value. */ static VALUE @@ -943,32 +4005,38 @@ time_eql(VALUE time1, VALUE time2) struct time_object *tobj1, *tobj2; GetTimeval(time1, tobj1); - if (TYPE(time2) == T_DATA && RDATA(time2)->dfree == time_free) { - GetTimeval(time2, tobj2); - if (tobj1->tv.tv_sec == tobj2->tv.tv_sec) { - if (tobj1->tv.tv_usec == tobj2->tv.tv_usec) return Qtrue; - } + if (IsTimeval(time2)) { + GetTimeval(time2, tobj2); + return rb_equal(w2v(tobj1->timew), w2v(tobj2->timew)); } return Qfalse; } /* * call-seq: - * time.utc? => true or false - * time.gmt? => true or false - * - * Returns <code>true</code> if <i>time</i> represents a time in UTC - * (GMT). - * - * t = Time.now #=> Wed Apr 09 08:56:04 CDT 2003 - * t.utc? #=> false - * t = Time.gm(2000,"jan",1,20,15,1) #=> Sat Jan 01 20:15:01 UTC 2000 - * t.utc? #=> true - * - * t = Time.now #=> Wed Apr 09 08:56:03 CDT 2003 - * t.gmt? #=> false - * t = Time.gm(2000,1,1,20,15,1) #=> Sat Jan 01 20:15:01 UTC 2000 - * t.gmt? #=> true + * utc? -> true or false + * + * Returns +true+ if +self+ represents a time in UTC (GMT): + * + * now = Time.now + * # => 2022-08-18 10:24:13.5398485 -0500 + * now.utc? # => false + * now.getutc.utc? # => true + * utc = Time.utc(2000, 1, 1, 20, 15, 1) + * # => 2000-01-01 20:15:01 UTC + * utc.utc? # => true + * + * +Time+ objects created with these methods are considered to be in + * UTC: + * + * * Time.utc + * * Time#utc + * * Time#getutc + * + * Objects created in other ways will not be treated as UTC even if + * the environment variable "TZ" is "UTC". + * + * Related: Time.utc. */ static VALUE @@ -977,26 +4045,25 @@ time_utc_p(VALUE time) struct time_object *tobj; GetTimeval(time, tobj); - if (tobj->gmt) return Qtrue; - return Qfalse; + return RBOOL(TZMODE_UTC_P(tobj)); } /* * call-seq: - * time.hash => fixnum + * hash -> integer * - * Return a hash code for this time object. + * Returns the integer hash code for +self+. + * + * Related: Object#hash. */ static VALUE time_hash(VALUE time) { struct time_object *tobj; - long hash; GetTimeval(time, tobj); - hash = tobj->tv.tv_sec ^ tobj->tv.tv_usec; - return LONG2FIX(hash); + return rb_hash(w2v(tobj->timew)); } /* :nodoc: */ @@ -1005,14 +4072,12 @@ time_init_copy(VALUE copy, VALUE time) { struct time_object *tobj, *tcopy; - if (copy == time) return copy; - time_modify(copy); - if (TYPE(time) != T_DATA || RDATA(time)->dfree != time_free) { - rb_raise(rb_eTypeError, "wrong argument type"); - } + if (!OBJ_INIT_COPY(copy, time)) return copy; GetTimeval(time, tobj); - GetTimeval(copy, tcopy); - MEMCPY(tcopy, tobj, struct time_object, 1); + GetNewTimeval(copy, tcopy); + + time_set_timew(copy, tcopy, tobj->timew); + time_set_vtm(copy, tcopy, tobj->vtm); return copy; } @@ -1020,125 +4085,233 @@ time_init_copy(VALUE copy, VALUE time) static VALUE time_dup(VALUE time) { - VALUE dup = time_s_alloc(CLASS_OF(time)); + VALUE dup = time_s_alloc(rb_obj_class(time)); time_init_copy(dup, time); return dup; } -/* - * call-seq: - * time.localtime => time - * - * Converts <i>time</i> to local time (using the local time zone in - * effect for this process) modifying the receiver. - * - * t = Time.gm(2000, "jan", 1, 20, 15, 1) - * t.gmt? #=> true - * t.localtime #=> Sat Jan 01 14:15:01 CST 2000 - * t.gmt? #=> false - */ - static VALUE time_localtime(VALUE time) { struct time_object *tobj; - struct tm *tm_tmp; - time_t t; + struct vtm vtm; + VALUE zone; GetTimeval(time, tobj); - if (!tobj->gmt) { - if (tobj->tm_got) - return time; + if (TZMODE_LOCALTIME_P(tobj)) { + if (tobj->vtm.tm_got) + return time; } else { - time_modify(time); - } - t = tobj->tv.tv_sec; - tm_tmp = localtime(&t); - if (!tm_tmp) - rb_raise(rb_eArgError, "localtime error"); - tobj->tm = *tm_tmp; - tobj->tm_got = 1; - tobj->gmt = 0; + time_modify(time); + } + + zone = tobj->vtm.zone; + if (maybe_tzobj_p(zone) && zone_localtime(zone, time)) { + return time; + } + + if (!localtimew(tobj->timew, &vtm)) + rb_raise(rb_eArgError, "localtime error"); + time_set_vtm(time, tobj, vtm); + + tobj->vtm.tm_got = 1; + TZMODE_SET_LOCALTIME(tobj); return time; } +static VALUE +time_zonelocal(VALUE time, VALUE off) +{ + VALUE zone = off; + if (zone_localtime(zone, time)) return time; + + if (NIL_P(off = utc_offset_arg(off))) { + off = zone; + if (NIL_P(zone = find_timezone(time, off))) invalid_utc_offset(off); + if (!zone_localtime(zone, time)) invalid_utc_offset(off); + return time; + } + else if (off == UTC_ZONE) { + return time_gmtime(time); + } + validate_utc_offset(off); + + time_set_utc_offset(time, off); + return time_fixoff(time); +} + +/* + * call-seq: + * localtime -> self or new_time + * localtime(zone) -> new_time + * + * With no argument given: + * + * - Returns +self+ if +self+ is a local time. + * - Otherwise returns a new +Time+ in the user's local timezone: + * + * t = Time.utc(2000, 1, 1, 20, 15, 1) # => 2000-01-01 20:15:01 UTC + * t.localtime # => 2000-01-01 14:15:01 -0600 + * + * With argument +zone+ given, + * returns the new +Time+ object created by converting + * +self+ to the given time zone: + * + * t = Time.utc(2000, 1, 1, 20, 15, 1) # => 2000-01-01 20:15:01 UTC + * t.localtime("-09:00") # => 2000-01-01 11:15:01 -0900 + * + * For forms of argument +zone+, see + * {Timezone Specifiers}[rdoc-ref:Time@Timezone+Specifiers]. + * + */ + +static VALUE +time_localtime_m(int argc, VALUE *argv, VALUE time) +{ + VALUE off; + + if (rb_check_arity(argc, 0, 1) && !NIL_P(off = argv[0])) { + return time_zonelocal(time, off); + } + + return time_localtime(time); +} + /* * call-seq: - * time.gmtime => time - * time.utc => time - * - * Converts <i>time</i> to UTC (GMT), modifying the receiver. - * - * t = Time.now #=> Wed Apr 09 08:56:03 CDT 2003 - * t.gmt? #=> false - * t.gmtime #=> Wed Apr 09 13:56:03 UTC 2003 - * t.gmt? #=> true - * - * t = Time.now #=> Wed Apr 09 08:56:04 CDT 2003 - * t.utc? #=> false - * t.utc #=> Wed Apr 09 13:56:04 UTC 2003 - * t.utc? #=> true + * utc -> self + * + * Returns +self+, converted to the UTC timezone: + * + * t = Time.new(2000) # => 2000-01-01 00:00:00 -0600 + * t.utc? # => false + * t.utc # => 2000-01-01 06:00:00 UTC + * t.utc? # => true + * + * Related: Time#getutc (returns a new converted +Time+ object). */ static VALUE time_gmtime(VALUE time) { struct time_object *tobj; - struct tm *tm_tmp; - time_t t; + struct vtm vtm; GetTimeval(time, tobj); - if (tobj->gmt) { - if (tobj->tm_got) - return time; + if (TZMODE_UTC_P(tobj)) { + if (tobj->vtm.tm_got) + return time; } else { - time_modify(time); - } - t = tobj->tv.tv_sec; - tm_tmp = gmtime(&t); - if (!tm_tmp) - rb_raise(rb_eArgError, "gmtime error"); - tobj->tm = *tm_tmp; - tobj->tm_got = 1; - tobj->gmt = 1; + time_modify(time); + } + + vtm.zone = str_utc; + GMTIMEW(tobj->timew, &vtm); + time_set_vtm(time, tobj, vtm); + + tobj->vtm.tm_got = 1; + TZMODE_SET_UTC(tobj); + return time; +} + +static VALUE +time_fixoff(VALUE time) +{ + struct time_object *tobj; + struct vtm vtm; + VALUE off, zone; + + GetTimeval(time, tobj); + if (TZMODE_FIXOFF_P(tobj)) { + if (tobj->vtm.tm_got) + return time; + } + else { + time_modify(time); + } + + if (TZMODE_FIXOFF_P(tobj)) + off = tobj->vtm.utc_offset; + else + off = INT2FIX(0); + + GMTIMEW(tobj->timew, &vtm); + + zone = tobj->vtm.zone; + vtm_add_offset(&vtm, off, +1); + + time_set_vtm(time, tobj, vtm); + RB_OBJ_WRITE_UNALIGNED(time, &tobj->vtm.zone, zone); + + tobj->vtm.tm_got = 1; + TZMODE_SET_FIXOFF(time, tobj, off); return time; } /* * call-seq: - * time.getlocal => new_time - * - * Returns a new <code>new_time</code> object representing <i>time</i> in - * local time (using the local time zone in effect for this process). - * - * t = Time.gm(2000,1,1,20,15,1) #=> Sat Jan 01 20:15:01 UTC 2000 - * t.gmt? #=> true - * l = t.getlocal #=> Sat Jan 01 14:15:01 CST 2000 - * l.gmt? #=> false - * t == l #=> true + * getlocal(zone = nil) -> new_time + * + * Returns a new +Time+ object representing the value of +self+ + * converted to a given timezone; + * if +zone+ is +nil+, the local timezone is used: + * + * t = Time.utc(2000) # => 2000-01-01 00:00:00 UTC + * t.getlocal # => 1999-12-31 18:00:00 -0600 + * t.getlocal('+12:00') # => 2000-01-01 12:00:00 +1200 + * + * For forms of argument +zone+, see + * {Timezone Specifiers}[rdoc-ref:Time@Timezone+Specifiers]. + * */ static VALUE -time_getlocaltime(VALUE time) +time_getlocaltime(int argc, VALUE *argv, VALUE time) { + VALUE off; + + if (rb_check_arity(argc, 0, 1) && !NIL_P(off = argv[0])) { + VALUE zone = off; + if (maybe_tzobj_p(zone)) { + VALUE t = time_dup(time); + if (zone_localtime(off, t)) return t; + } + + if (NIL_P(off = utc_offset_arg(off))) { + off = zone; + if (NIL_P(zone = find_timezone(time, off))) invalid_utc_offset(off); + time = time_dup(time); + if (!zone_localtime(zone, time)) invalid_utc_offset(off); + return time; + } + else if (off == UTC_ZONE) { + return time_gmtime(time_dup(time)); + } + validate_utc_offset(off); + + time = time_dup(time); + time_set_utc_offset(time, off); + return time_fixoff(time); + } + return time_localtime(time_dup(time)); } /* * call-seq: - * time.getgm => new_time - * time.getutc => new_time - * - * Returns a new <code>new_time</code> object representing <i>time</i> in - * UTC. - * - * t = Time.local(2000,1,1,20,15,1) #=> Sat Jan 01 20:15:01 CST 2000 - * t.gmt? #=> false - * y = t.getgm #=> Sun Jan 02 02:15:01 UTC 2000 - * y.gmt? #=> true - * t == y #=> true + * getutc -> new_time + * + * Returns a new +Time+ object representing the value of +self+ + * converted to the UTC timezone: + * + * local = Time.local(2000) # => 2000-01-01 00:00:00 -0600 + * local.utc? # => false + * utc = local.getutc # => 2000-01-01 06:00:00 UTC + * utc.utc? # => true + * utc == local # => true + * */ static VALUE @@ -1148,138 +4321,161 @@ time_getgmtime(VALUE time) } static VALUE -time_get_tm(VALUE time, int gmt) +time_get_tm(VALUE time, struct time_object *tobj) { - if (gmt) return time_gmtime(time); + if (TZMODE_UTC_P(tobj)) return time_gmtime(time); + if (TZMODE_FIXOFF_P(tobj)) return time_fixoff(time); return time_localtime(time); } +static VALUE strftime_cstr(const char *fmt, size_t len, VALUE time, rb_encoding *enc); +#define strftimev(fmt, time, enc) strftime_cstr((fmt), rb_strlen_lit(fmt), (time), (enc)) + /* * call-seq: - * time.asctime => string - * time.ctime => string - * - * Returns a canonical string representation of <i>time</i>. - * - * Time.now.asctime #=> "Wed Apr 9 08:56:03 2003" + * ctime -> string + * + * Returns a string representation of +self+, + * formatted by <tt>strftime('%a %b %e %T %Y')</tt> + * or its shorthand version <tt>strftime('%c')</tt>; + * see {Formats for Dates and Times}[rdoc-ref:strftime_formatting.rdoc]: + * + * t = Time.new(2000, 12, 31, 23, 59, 59, 0.5) + * t.ctime # => "Sun Dec 31 23:59:59 2000" + * t.strftime('%a %b %e %T %Y') # => "Sun Dec 31 23:59:59 2000" + * t.strftime('%c') # => "Sun Dec 31 23:59:59 2000" + * + * Related: Time#to_s, Time#inspect: + * + * t.inspect # => "2000-12-31 23:59:59.5 +000001" + * t.to_s # => "2000-12-31 23:59:59 +0000" + * */ static VALUE time_asctime(VALUE time) { + return strftimev("%a %b %e %T %Y", time, rb_usascii_encoding()); +} + +/* + * call-seq: + * to_s -> string + * + * Returns a string representation of +self+, without subseconds: + * + * t = Time.new(2000, 12, 31, 23, 59, 59, 0.5) + * t.to_s # => "2000-12-31 23:59:59 +0000" + * + * Related: Time#ctime, Time#inspect: + * + * t.ctime # => "Sun Dec 31 23:59:59 2000" + * t.inspect # => "2000-12-31 23:59:59.5 +000001" + * + */ + +static VALUE +time_to_s(VALUE time) +{ struct time_object *tobj; - char *s; GetTimeval(time, tobj); - if (tobj->tm_got == 0) { - time_get_tm(time, tobj->gmt); - } - s = asctime(&tobj->tm); - if (s[24] == '\n') s[24] = '\0'; - - return rb_str_new2(s); + if (TZMODE_UTC_P(tobj)) + return strftimev("%Y-%m-%d %H:%M:%S UTC", time, rb_usascii_encoding()); + else + return strftimev("%Y-%m-%d %H:%M:%S %z", time, rb_usascii_encoding()); } /* * call-seq: - * time.inspect => string - * time.to_s => string - * - * Returns a string representing <i>time</i>. Equivalent to calling - * <code>Time#strftime</code> with a format string of - * ``<code>%Y-%m-%d</code> <code>%H:%M:%S</code> <code>%z</code>'' - * for a local time and - * ``<code>%Y-%m-%d</code> <code>%H:%M:%S</code> <code>UTC</code>'' - * for a UTC time. - * - * Time.now.to_s #=> "2007-10-05 16:09:51 +0900" - * Time.now.utc.to_s #=> "2007-10-05 07:09:51 UTC" + * inspect -> string + * + * Returns a string representation of +self+ with subseconds: + * + * t = Time.new(2000, 12, 31, 23, 59, 59, 0.5) + * t.inspect # => "2000-12-31 23:59:59.5 +000001" + * + * Related: Time#ctime, Time#to_s: + * + * t.ctime # => "Sun Dec 31 23:59:59 2000" + * t.to_s # => "2000-12-31 23:59:59 +0000" + * */ static VALUE -time_to_s(VALUE time) +time_inspect(VALUE time) { struct time_object *tobj; - char buf[128]; - int len; + VALUE str, subsec; GetTimeval(time, tobj); - if (tobj->tm_got == 0) { - time_get_tm(time, tobj->gmt); + str = strftimev("%Y-%m-%d %H:%M:%S", time, rb_usascii_encoding()); + subsec = w2v(wmod(tobj->timew, WINT2FIXWV(TIME_SCALE))); + if (subsec == INT2FIX(0)) { } - if (tobj->gmt == 1) { - len = strftime(buf, 128, "%Y-%m-%d %H:%M:%S UTC", &tobj->tm); + else if (FIXNUM_P(subsec) && FIX2LONG(subsec) < TIME_SCALE) { + long len; + rb_str_catf(str, ".%09ld", FIX2LONG(subsec)); + for (len=RSTRING_LEN(str); RSTRING_PTR(str)[len-1] == '0' && len > 0; len--) + ; + rb_str_resize(str, len); } else { - time_t off; - char buf2[32]; - char sign = '+'; -#if defined(HAVE_STRUCT_TM_TM_GMTOFF) - off = tobj->tm.tm_gmtoff; -#else - VALUE tmp = time_utc_offset(time); - off = NUM2INT(tmp); -#endif - if (off < 0) { - sign = '-'; - off = -off; - } - sprintf(buf2, "%%Y-%%m-%%d %%H:%%M:%%S %c%02d%02d", - sign, (int)(off/3600), (int)(off%3600/60)); - len = strftime(buf, 128, buf2, &tobj->tm); + rb_str_cat_cstr(str, " "); + subsec = quov(subsec, INT2FIX(TIME_SCALE)); + rb_str_concat(str, rb_obj_as_string(subsec)); + } + if (TZMODE_UTC_P(tobj)) { + rb_str_cat_cstr(str, " UTC"); + } + else { + /* ?TODO: subsecond offset */ + long off = NUM2LONG(rb_funcall(tobj->vtm.utc_offset, rb_intern("round"), 0)); + char sign = (off < 0) ? (off = -off, '-') : '+'; + int sec = off % 60; + int min = (off /= 60) % 60; + off /= 60; + rb_str_catf(str, " %c%.2d%.2d", sign, (int)off, min); + if (sec) rb_str_catf(str, "%.2d", sec); } - return rb_str_new(buf, len); + return str; } static VALUE -time_add(struct time_object *tobj, VALUE offset, int sign) +time_add0(VALUE klass, const struct time_object *tobj, VALUE torig, VALUE offset, int sign) { - double v = NUM2DBL(offset); - double f, d; - unsigned_time_t sec_off; - time_t usec_off, sec, usec; VALUE result; + struct time_object *result_tobj; - if (v < 0) { - v = -v; - sign = -sign; - } - d = modf(v, &f); - sec_off = (unsigned_time_t)f; - if (f != (double)sec_off) - rb_raise(rb_eRangeError, "time %s %f out of Time range", - sign < 0 ? "-" : "+", v); - usec_off = (time_t)(d*1e6+0.5); + offset = num_exact(offset); + if (sign < 0) + result = time_new_timew(klass, wsub(tobj->timew, rb_time_magnify(v2w(offset)))); + else + result = time_new_timew(klass, wadd(tobj->timew, rb_time_magnify(v2w(offset)))); + GetTimeval(result, result_tobj); + TZMODE_COPY(result_tobj, tobj); - if (sign < 0) { - sec = tobj->tv.tv_sec - sec_off; - usec = tobj->tv.tv_usec - usec_off; - if (sec > tobj->tv.tv_sec) - rb_raise(rb_eRangeError, "time - %f out of Time range", v); - } - else { - sec = tobj->tv.tv_sec + sec_off; - usec = tobj->tv.tv_usec + usec_off; - if (sec < tobj->tv.tv_sec) - rb_raise(rb_eRangeError, "time + %f out of Time range", v); - } - result = rb_time_new(sec, usec); - if (tobj->gmt) { - GetTimeval(result, tobj); - tobj->gmt = 1; - } return result; } +static VALUE +time_add(const struct time_object *tobj, VALUE torig, VALUE offset, int sign) +{ + return time_add0(rb_cTime, tobj, torig, offset, sign); +} + /* * call-seq: - * time + numeric => time - * - * Addition---Adds some number of seconds (possibly fractional) to - * <i>time</i> and returns that value as a new time. - * - * t = Time.now #=> Wed Apr 09 08:56:03 CDT 2003 - * t + (60 * 60 * 24) #=> Thu Apr 10 08:56:03 CDT 2003 + * self + numeric -> new_time + * + * Returns a new +Time+ object whose value is the sum of the numeric value + * of +self+ and the given +numeric+: + * + * t = Time.new(2000) # => 2000-01-01 00:00:00 -0600 + * t + (60 * 60 * 24) # => 2000-01-02 00:00:00 -0600 + * t + 0.5 # => 2000-01-01 00:00:00.5 -0600 + * + * Related: Time#-. */ static VALUE @@ -1288,25 +4484,32 @@ time_plus(VALUE time1, VALUE time2) struct time_object *tobj; GetTimeval(time1, tobj); - if (TYPE(time2) == T_DATA && RDATA(time2)->dfree == time_free) { - rb_raise(rb_eTypeError, "time + time?"); + if (IsTimeval(time2)) { + rb_raise(rb_eTypeError, "time + time?"); } - return time_add(tobj, time2, 1); + return time_add(tobj, time1, time2, 1); } /* * call-seq: - * time - other_time => float - * time - numeric => time - * - * Difference---Returns a new time that represents the difference - * between two times, or subtracts the given number of seconds in - * <i>numeric</i> from <i>time</i>. - * - * t = Time.now #=> Wed Apr 09 08:56:03 CDT 2003 - * t2 = t + 2592000 #=> Fri May 09 08:56:03 CDT 2003 - * t2 - t #=> 2592000.0 - * t2 - 2592000 #=> Wed Apr 09 08:56:03 CDT 2003 + * self - numeric -> new_time + * self - other_time -> float + * + * When +numeric+ is given, + * returns a new +Time+ object whose value is the difference + * of the numeric value of +self+ and +numeric+: + * + * t = Time.new(2000) # => 2000-01-01 00:00:00 -0600 + * t - (60 * 60 * 24) # => 1999-12-31 00:00:00 -0600 + * t - 0.5 # => 1999-12-31 23:59:59.5 -0600 + * + * When +other_time+ is given, + * returns a Float whose value is the difference + * of the numeric values of +self+ and +other_time+ in seconds: + * + * t - t # => 0.0 + * + * Related: Time#+. */ static VALUE @@ -1315,80 +4518,211 @@ time_minus(VALUE time1, VALUE time2) struct time_object *tobj; GetTimeval(time1, tobj); - if (TYPE(time2) == T_DATA && RDATA(time2)->dfree == time_free) { - struct time_object *tobj2; - double f; + if (IsTimeval(time2)) { + struct time_object *tobj2; + + GetTimeval(time2, tobj2); + return rb_Float(rb_time_unmagnify_to_float(wsub(tobj->timew, tobj2->timew))); + } + return time_add(tobj, time1, time2, -1); +} - GetTimeval(time2, tobj2); - f = (double)tobj->tv.tv_sec - (double)tobj2->tv.tv_sec; - f += ((double)tobj->tv.tv_usec - (double)tobj2->tv.tv_usec)*1e-6; - /* XXX: should check float overflow on 64bit time_t platforms */ +static VALUE +ndigits_denominator(VALUE ndigits) +{ + long nd = NUM2LONG(ndigits); - return DOUBLE2NUM(f); + if (nd < 0) { + rb_raise(rb_eArgError, "negative ndigits given"); } - return time_add(tobj, time2, -1); + if (nd == 0) { + return INT2FIX(1); + } + return rb_rational_new(INT2FIX(1), + rb_int_positive_pow(10, (unsigned long)nd)); } /* * call-seq: - * time.succ => new_time + * round(ndigits = 0) -> new_time + * + * Returns a new +Time+ object whose numeric value is that of +self+, + * with its seconds value rounded to precision +ndigits+: + * + * t = Time.utc(2010, 3, 30, 5, 43, 25.123456789r) + * t # => 2010-03-30 05:43:25.123456789 UTC + * t.round # => 2010-03-30 05:43:25 UTC + * t.round(0) # => 2010-03-30 05:43:25 UTC + * t.round(1) # => 2010-03-30 05:43:25.1 UTC + * t.round(2) # => 2010-03-30 05:43:25.12 UTC + * t.round(3) # => 2010-03-30 05:43:25.123 UTC + * t.round(4) # => 2010-03-30 05:43:25.1235 UTC * - * Return a new time object, one second later than <code>time</code>. + * t = Time.utc(1999, 12,31, 23, 59, 59) + * t # => 1999-12-31 23:59:59 UTC + * (t + 0.4).round # => 1999-12-31 23:59:59 UTC + * (t + 0.49).round # => 1999-12-31 23:59:59 UTC + * (t + 0.5).round # => 2000-01-01 00:00:00 UTC + * (t + 1.4).round # => 2000-01-01 00:00:00 UTC + * (t + 1.49).round # => 2000-01-01 00:00:00 UTC + * (t + 1.5).round # => 2000-01-01 00:00:01 UTC + * + * Related: Time#ceil, Time#floor. */ static VALUE -time_succ(VALUE time) +time_round(int argc, VALUE *argv, VALUE time) { + VALUE ndigits, v, den; struct time_object *tobj; - int gmt; + + if (!rb_check_arity(argc, 0, 1) || NIL_P(ndigits = argv[0])) + den = INT2FIX(1); + else + den = ndigits_denominator(ndigits); GetTimeval(time, tobj); - gmt = tobj->gmt; - time = rb_time_new(tobj->tv.tv_sec + 1, tobj->tv.tv_usec); + v = w2v(rb_time_unmagnify(tobj->timew)); + + v = modv(v, den); + if (lt(v, quov(den, INT2FIX(2)))) + return time_add(tobj, time, v, -1); + else + return time_add(tobj, time, subv(den, v), 1); +} + +/* + * call-seq: + * floor(ndigits = 0) -> new_time + * + * Returns a new +Time+ object whose numerical value + * is less than or equal to +self+ with its seconds + * truncated to precision +ndigits+: + * + * t = Time.utc(2010, 3, 30, 5, 43, 25.123456789r) + * t # => 2010-03-30 05:43:25.123456789 UTC + * t.floor # => 2010-03-30 05:43:25 UTC + * t.floor(2) # => 2010-03-30 05:43:25.12 UTC + * t.floor(4) # => 2010-03-30 05:43:25.1234 UTC + * t.floor(6) # => 2010-03-30 05:43:25.123456 UTC + * t.floor(8) # => 2010-03-30 05:43:25.12345678 UTC + * t.floor(10) # => 2010-03-30 05:43:25.123456789 UTC + * + * t = Time.utc(1999, 12, 31, 23, 59, 59) + * t # => 1999-12-31 23:59:59 UTC + * (t + 0.4).floor # => 1999-12-31 23:59:59 UTC + * (t + 0.9).floor # => 1999-12-31 23:59:59 UTC + * (t + 1.4).floor # => 2000-01-01 00:00:00 UTC + * (t + 1.9).floor # => 2000-01-01 00:00:00 UTC + * + * Related: Time#ceil, Time#round. + */ + +static VALUE +time_floor(int argc, VALUE *argv, VALUE time) +{ + VALUE ndigits, v, den; + struct time_object *tobj; + + if (!rb_check_arity(argc, 0, 1) || NIL_P(ndigits = argv[0])) + den = INT2FIX(1); + else + den = ndigits_denominator(ndigits); + GetTimeval(time, tobj); - tobj->gmt = gmt; - return time; + v = w2v(rb_time_unmagnify(tobj->timew)); + + v = modv(v, den); + return time_add(tobj, time, v, -1); } /* - * call-seq: - * time.sec => fixnum - * - * Returns the second of the minute (0..60)<em>[Yes, seconds really can - * range from zero to 60. This allows the system to inject leap seconds - * every now and then to correct for the fact that years are not really - * a convenient number of hours long.]</em> for <i>time</i>. - * - * t = Time.now #=> Wed Apr 09 08:56:04 CDT 2003 - * t.sec #=> 4 + * call-seq: + * ceil(ndigits = 0) -> new_time + * + * Returns a new +Time+ object whose numerical value + * is greater than or equal to +self+ with its seconds + * truncated to precision +ndigits+: + * + * t = Time.utc(2010, 3, 30, 5, 43, 25.123456789r) + * t # => 2010-03-30 05:43:25.123456789 UTC + * t.ceil # => 2010-03-30 05:43:26 UTC + * t.ceil(2) # => 2010-03-30 05:43:25.13 UTC + * t.ceil(4) # => 2010-03-30 05:43:25.1235 UTC + * t.ceil(6) # => 2010-03-30 05:43:25.123457 UTC + * t.ceil(8) # => 2010-03-30 05:43:25.12345679 UTC + * t.ceil(10) # => 2010-03-30 05:43:25.123456789 UTC + * + * t = Time.utc(1999, 12, 31, 23, 59, 59) + * t # => 1999-12-31 23:59:59 UTC + * (t + 0.4).ceil # => 2000-01-01 00:00:00 UTC + * (t + 0.9).ceil # => 2000-01-01 00:00:00 UTC + * (t + 1.4).ceil # => 2000-01-01 00:00:01 UTC + * (t + 1.9).ceil # => 2000-01-01 00:00:01 UTC + * + * Related: Time#floor, Time#round. */ static VALUE -time_sec(VALUE time) +time_ceil(int argc, VALUE *argv, VALUE time) { + VALUE ndigits, v, den; struct time_object *tobj; + if (!rb_check_arity(argc, 0, 1) || NIL_P(ndigits = argv[0])) + den = INT2FIX(1); + else + den = ndigits_denominator(ndigits); + GetTimeval(time, tobj); - if (tobj->tm_got == 0) { - time_get_tm(time, tobj->gmt); + v = w2v(rb_time_unmagnify(tobj->timew)); + + v = modv(v, den); + if (!rb_equal(v, INT2FIX(0))) { + v = subv(den, v); } - return INT2FIX(tobj->tm.tm_sec); + return time_add(tobj, time, v, 1); } -VALUE -rb_time_succ(VALUE time) +/* + * call-seq: + * sec -> integer + * + * Returns the integer second of the minute for +self+, + * in range (0..60): + * + * t = Time.new(2000, 1, 2, 3, 4, 5, 6) + * # => 2000-01-02 03:04:05 +000006 + * t.sec # => 5 + * + * Note: the second value may be 60 when there is a + * {leap second}[https://en.wikipedia.org/wiki/Leap_second]. + * + * Related: Time#year, Time#mon, Time#min. + */ + +static VALUE +time_sec(VALUE time) { - return time_succ(time); + struct time_object *tobj; + + GetTimeval(time, tobj); + MAKE_TM(time, tobj); + return INT2FIX(tobj->vtm.sec); } /* * call-seq: - * time.min => fixnum - * - * Returns the minute of the hour (0..59) for <i>time</i>. - * - * t = Time.now #=> Wed Apr 09 08:56:03 CDT 2003 - * t.min #=> 56 + * min -> integer + * + * Returns the integer minute of the hour for +self+, + * in range (0..59): + * + * t = Time.new(2000, 1, 2, 3, 4, 5, 6) + * # => 2000-01-02 03:04:05 +000006 + * t.min # => 4 + * + * Related: Time#year, Time#mon, Time#sec. */ static VALUE @@ -1397,20 +4731,22 @@ time_min(VALUE time) struct time_object *tobj; GetTimeval(time, tobj); - if (tobj->tm_got == 0) { - time_get_tm(time, tobj->gmt); - } - return INT2FIX(tobj->tm.tm_min); + MAKE_TM(time, tobj); + return INT2FIX(tobj->vtm.min); } /* * call-seq: - * time.hour => fixnum - * - * Returns the hour of the day (0..23) for <i>time</i>. - * - * t = Time.now #=> Wed Apr 09 08:56:03 CDT 2003 - * t.hour #=> 8 + * hour -> integer + * + * Returns the integer hour of the day for +self+, + * in range (0..23): + * + * t = Time.new(2000, 1, 2, 3, 4, 5, 6) + * # => 2000-01-02 03:04:05 +000006 + * t.hour # => 3 + * + * Related: Time#year, Time#mon, Time#min. */ static VALUE @@ -1419,22 +4755,22 @@ time_hour(VALUE time) struct time_object *tobj; GetTimeval(time, tobj); - if (tobj->tm_got == 0) { - time_get_tm(time, tobj->gmt); - } - return INT2FIX(tobj->tm.tm_hour); + MAKE_TM(time, tobj); + return INT2FIX(tobj->vtm.hour); } /* * call-seq: - * time.day => fixnum - * time.mday => fixnum - * - * Returns the day of the month (1..n) for <i>time</i>. - * - * t = Time.now #=> Wed Apr 09 08:56:03 CDT 2003 - * t.day #=> 9 - * t.mday #=> 9 + * mday -> integer + * + * Returns the integer day of the month for +self+, + * in range (1..31): + * + * t = Time.new(2000, 1, 2, 3, 4, 5, 6) + * # => 2000-01-02 03:04:05 +000006 + * t.mday # => 2 + * + * Related: Time#year, Time#hour, Time#min. */ static VALUE @@ -1443,22 +4779,22 @@ time_mday(VALUE time) struct time_object *tobj; GetTimeval(time, tobj); - if (tobj->tm_got == 0) { - time_get_tm(time, tobj->gmt); - } - return INT2FIX(tobj->tm.tm_mday); + MAKE_TM(time, tobj); + return INT2FIX(tobj->vtm.mday); } /* * call-seq: - * time.mon => fixnum - * time.month => fixnum - * - * Returns the month of the year (1..12) for <i>time</i>. - * - * t = Time.now #=> Wed Apr 09 08:56:03 CDT 2003 - * t.mon #=> 4 - * t.month #=> 4 + * mon -> integer + * + * Returns the integer month of the year for +self+, + * in range (1..12): + * + * t = Time.new(2000, 1, 2, 3, 4, 5, 6) + * # => 2000-01-02 03:04:05 +000006 + * t.mon # => 1 + * + * Related: Time#year, Time#hour, Time#min. */ static VALUE @@ -1467,20 +4803,21 @@ time_mon(VALUE time) struct time_object *tobj; GetTimeval(time, tobj); - if (tobj->tm_got == 0) { - time_get_tm(time, tobj->gmt); - } - return INT2FIX(tobj->tm.tm_mon+1); + MAKE_TM(time, tobj); + return INT2FIX(tobj->vtm.mon); } /* * call-seq: - * time.year => fixnum - * - * Returns the year for <i>time</i> (including the century). - * - * t = Time.now #=> Wed Apr 09 08:56:04 CDT 2003 - * t.year #=> 2003 + * year -> integer + * + * Returns the integer year for +self+: + * + * t = Time.new(2000, 1, 2, 3, 4, 5, 6) + * # => 2000-01-02 03:04:05 +000006 + * t.year # => 2000 + * + * Related: Time#mon, Time#hour, Time#min. */ static VALUE @@ -1489,21 +4826,23 @@ time_year(VALUE time) struct time_object *tobj; GetTimeval(time, tobj); - if (tobj->tm_got == 0) { - time_get_tm(time, tobj->gmt); - } - return LONG2NUM((long)tobj->tm.tm_year+1900); + MAKE_TM(time, tobj); + return tobj->vtm.year; } /* * call-seq: - * time.wday => fixnum - * - * Returns an integer representing the day of the week, 0..6, with - * Sunday == 0. - * - * t = Time.now #=> Wed Apr 09 08:56:04 CDT 2003 - * t.wday #=> 3 + * wday -> integer + * + * Returns the integer day of the week for +self+, + * in range (0..6), with Sunday as zero. + * + * t = Time.new(2000, 1, 2, 3, 4, 5, 6) + * # => 2000-01-02 03:04:05 +000006 + * t.wday # => 0 + * t.sunday? # => true + * + * Related: Time#year, Time#hour, Time#min. */ static VALUE @@ -1512,29 +4851,24 @@ time_wday(VALUE time) struct time_object *tobj; GetTimeval(time, tobj); - if (tobj->tm_got == 0) { - time_get_tm(time, tobj->gmt); - } - return INT2FIX(tobj->tm.tm_wday); + MAKE_TM_ENSURE(time, tobj, tobj->vtm.wday != VTM_WDAY_INITVAL); + return INT2FIX((int)tobj->vtm.wday); } #define wday_p(n) {\ - struct time_object *tobj;\ - GetTimeval(time, tobj);\ - if (tobj->tm_got == 0) {\ - time_get_tm(time, tobj->gmt);\ - }\ - return (tobj->tm.tm_wday == (n)) ? Qtrue : Qfalse;\ + return RBOOL(time_wday(time) == INT2FIX(n)); \ } /* * call-seq: - * time.sunday? => true or false - * - * Returns <code>true</code> if <i>time</i> represents Sunday. - * - * t = Time.now #=> Sun Oct 23 00:14:54 UTC 2005 - * t.sunday? #=> true + * sunday? -> true or false + * + * Returns +true+ if +self+ represents a Sunday, +false+ otherwise: + * + * t = Time.utc(2000, 1, 2) # => 2000-01-02 00:00:00 UTC + * t.sunday? # => true + * + * Related: Time#monday?, Time#tuesday?, Time#wednesday?. */ static VALUE @@ -1545,9 +4879,14 @@ time_sunday(VALUE time) /* * call-seq: - * time.monday? => true or false - * - * Returns <code>true</code> if <i>time</i> represents Monday. + * monday? -> true or false + * + * Returns +true+ if +self+ represents a Monday, +false+ otherwise: + * + * t = Time.utc(2000, 1, 3) # => 2000-01-03 00:00:00 UTC + * t.monday? # => true + * + * Related: Time#tuesday?, Time#wednesday?, Time#thursday?. */ static VALUE @@ -1558,9 +4897,14 @@ time_monday(VALUE time) /* * call-seq: - * time.tuesday? => true or false - * - * Returns <code>true</code> if <i>time</i> represents Tuesday. + * tuesday? -> true or false + * + * Returns +true+ if +self+ represents a Tuesday, +false+ otherwise: + * + * t = Time.utc(2000, 1, 4) # => 2000-01-04 00:00:00 UTC + * t.tuesday? # => true + * + * Related: Time#wednesday?, Time#thursday?, Time#friday?. */ static VALUE @@ -1571,9 +4915,14 @@ time_tuesday(VALUE time) /* * call-seq: - * time.wednesday? => true or false - * - * Returns <code>true</code> if <i>time</i> represents Wednesday. + * wednesday? -> true or false + * + * Returns +true+ if +self+ represents a Wednesday, +false+ otherwise: + * + * t = Time.utc(2000, 1, 5) # => 2000-01-05 00:00:00 UTC + * t.wednesday? # => true + * + * Related: Time#thursday?, Time#friday?, Time#saturday?. */ static VALUE @@ -1584,9 +4933,14 @@ time_wednesday(VALUE time) /* * call-seq: - * time.thursday? => true or false - * - * Returns <code>true</code> if <i>time</i> represents Thursday. + * thursday? -> true or false + * + * Returns +true+ if +self+ represents a Thursday, +false+ otherwise: + * + * t = Time.utc(2000, 1, 6) # => 2000-01-06 00:00:00 UTC + * t.thursday? # => true + * + * Related: Time#friday?, Time#saturday?, Time#sunday?. */ static VALUE @@ -1597,9 +4951,14 @@ time_thursday(VALUE time) /* * call-seq: - * time.friday? => true or false - * - * Returns <code>true</code> if <i>time</i> represents Friday. + * friday? -> true or false + * + * Returns +true+ if +self+ represents a Friday, +false+ otherwise: + * + * t = Time.utc(2000, 1, 7) # => 2000-01-07 00:00:00 UTC + * t.friday? # => true + * + * Related: Time#saturday?, Time#sunday?, Time#monday?. */ static VALUE @@ -1610,9 +4969,14 @@ time_friday(VALUE time) /* * call-seq: - * time.saturday? => true or false - * - * Returns <code>true</code> if <i>time</i> represents Saturday. + * saturday? -> true or false + * + * Returns +true+ if +self+ represents a Saturday, +false+ otherwise: + * + * t = Time.utc(2000, 1, 1) # => 2000-01-01 00:00:00 UTC + * t.saturday? # => true + * + * Related: Time#sunday?, Time#monday?, Time#tuesday?. */ static VALUE @@ -1623,12 +4987,12 @@ time_saturday(VALUE time) /* * call-seq: - * time.yday => fixnum - * - * Returns an integer representing the day of the year, 1..366. - * - * t = Time.now #=> Wed Apr 09 08:56:04 CDT 2003 - * t.yday #=> 99 + * yday -> integer + * + * Returns the integer day of the year of +self+, in range (1..366). + * + * Time.new(2000, 1, 1).yday # => 1 + * Time.new(2000, 12, 31).yday # => 366 */ static VALUE @@ -1637,24 +5001,23 @@ time_yday(VALUE time) struct time_object *tobj; GetTimeval(time, tobj); - if (tobj->tm_got == 0) { - time_get_tm(time, tobj->gmt); - } - return INT2FIX(tobj->tm.tm_yday+1); + MAKE_TM_ENSURE(time, tobj, tobj->vtm.yday != 0); + return INT2FIX(tobj->vtm.yday); } /* * call-seq: - * time.isdst => true or false - * time.dst? => true or false - * - * Returns <code>true</code> if <i>time</i> occurs during Daylight - * Saving Time in its time zone. - * - * Time.local(2000, 7, 1).isdst #=> true - * Time.local(2000, 1, 1).isdst #=> false - * Time.local(2000, 7, 1).dst? #=> true - * Time.local(2000, 1, 1).dst? #=> false + * dst? -> true or false + * + * Returns +true+ if +self+ is in daylight saving time, +false+ otherwise: + * + * t = Time.local(2000, 1, 1) # => 2000-01-01 00:00:00 -0600 + * t.zone # => "Central Standard Time" + * t.dst? # => false + * t = Time.local(2000, 7, 1) # => 2000-07-01 00:00:00 -0500 + * t.zone # => "Central Daylight Time" + * t.dst? # => true + * */ static VALUE @@ -1663,121 +5026,84 @@ time_isdst(VALUE time) struct time_object *tobj; GetTimeval(time, tobj); - if (tobj->tm_got == 0) { - time_get_tm(time, tobj->gmt); + MAKE_TM(time, tobj); + if (tobj->vtm.isdst == VTM_ISDST_INITVAL) { + rb_raise(rb_eRuntimeError, "isdst is not set yet"); } - return tobj->tm.tm_isdst?Qtrue:Qfalse; + return RBOOL(tobj->vtm.isdst); } /* * call-seq: - * time.zone => string - * - * Returns the name of the time zone used for <i>time</i>. As of Ruby - * 1.8, returns ``UTC'' rather than ``GMT'' for UTC times. - * - * t = Time.gm(2000, "jan", 1, 20, 15, 1) - * t.zone #=> "UTC" - * t = Time.local(2000, "jan", 1, 20, 15, 1) - * t.zone #=> "CST" + * time.zone -> string or timezone + * + * Returns the string name of the time zone for +self+: + * + * Time.utc(2000, 1, 1).zone # => "UTC" + * Time.new(2000, 1, 1).zone # => "Central Standard Time" */ static VALUE time_zone(VALUE time) { struct time_object *tobj; -#if !defined(HAVE_TM_ZONE) && (!defined(HAVE_TZNAME) || !defined(HAVE_DAYLIGHT)) - char buf[64]; - int len; -#endif - + VALUE zone; + GetTimeval(time, tobj); - if (tobj->tm_got == 0) { - time_get_tm(time, tobj->gmt); - } + MAKE_TM(time, tobj); - if (tobj->gmt == 1) { - return rb_str_new2("UTC"); + if (TZMODE_UTC_P(tobj)) { + return rb_usascii_str_new_cstr("UTC"); } -#if defined(HAVE_TM_ZONE) - return rb_str_new2(tobj->tm.tm_zone); -#elif defined(HAVE_TZNAME) && defined(HAVE_DAYLIGHT) - return rb_str_new2(tzname[daylight && tobj->tm.tm_isdst]); -#else - len = strftime(buf, 64, "%Z", &tobj->tm); - return rb_str_new(buf, len); -#endif + zone = tobj->vtm.zone; + if (NIL_P(zone)) + return Qnil; + + if (RB_TYPE_P(zone, T_STRING)) + zone = rb_str_dup(zone); + return zone; } /* * call-seq: - * time.gmt_offset => fixnum - * time.gmtoff => fixnum - * time.utc_offset => fixnum - * - * Returns the offset in seconds between the timezone of <i>time</i> - * and UTC. - * - * t = Time.gm(2000,1,1,20,15,1) #=> Sat Jan 01 20:15:01 UTC 2000 - * t.gmt_offset #=> 0 - * l = t.getlocal #=> Sat Jan 01 14:15:01 CST 2000 - * l.gmt_offset #=> -21600 + * utc_offset -> integer + * + * Returns the offset in seconds between the timezones of UTC and +self+: + * + * Time.utc(2000, 1, 1).utc_offset # => 0 + * Time.local(2000, 1, 1).utc_offset # => -21600 # -6*3600, or minus six hours. + * */ -static VALUE -time_utc_offset(VALUE time) +VALUE +rb_time_utc_offset(VALUE time) { struct time_object *tobj; GetTimeval(time, tobj); - if (tobj->tm_got == 0) { - time_get_tm(time, tobj->gmt); - } - if (tobj->gmt == 1) { - return INT2FIX(0); + if (TZMODE_UTC_P(tobj)) { + return INT2FIX(0); } else { -#if defined(HAVE_STRUCT_TM_TM_GMTOFF) - return INT2NUM(tobj->tm.tm_gmtoff); -#else - struct tm *u, *l; - time_t t; - long off; - l = &tobj->tm; - t = tobj->tv.tv_sec; - u = gmtime(&t); - if (!u) - rb_raise(rb_eArgError, "gmtime error"); - if (l->tm_year != u->tm_year) - off = l->tm_year < u->tm_year ? -1 : 1; - else if (l->tm_mon != u->tm_mon) - off = l->tm_mon < u->tm_mon ? -1 : 1; - else if (l->tm_mday != u->tm_mday) - off = l->tm_mday < u->tm_mday ? -1 : 1; - else - off = 0; - off = off * 24 + l->tm_hour - u->tm_hour; - off = off * 60 + l->tm_min - u->tm_min; - off = off * 60 + l->tm_sec - u->tm_sec; - return LONG2FIX(off); -#endif + MAKE_TM(time, tobj); + return tobj->vtm.utc_offset; } } /* * call-seq: - * time.to_a => array - * - * Returns a ten-element <i>array</i> of values for <i>time</i>: - * {<code>[ sec, min, hour, day, month, year, wday, yday, isdst, zone - * ]</code>}. See the individual methods for an explanation of the - * valid ranges of each value. The ten elements can be passed directly - * to <code>Time::utc</code> or <code>Time::local</code> to create a - * new <code>Time</code>. - * - * now = Time.now #=> Wed Apr 09 08:56:04 CDT 2003 - * t = now.to_a #=> [4, 56, 8, 9, 4, 2003, 3, 99, true, "CDT"] + * to_a -> array + * + * Returns a 10-element array of values representing +self+: + * + * Time.utc(2000, 1, 1).to_a + * # => [0, 0, 0, 1, 1, 2000, 6, 1, false, "UTC"] + * # [sec, min, hour, day, mon, year, wday, yday, dst?, zone] + * + * The returned array is suitable for use as an argument to Time.utc or Time.local + * to create a new +Time+ object. + * */ static VALUE @@ -1786,334 +5112,908 @@ time_to_a(VALUE time) struct time_object *tobj; GetTimeval(time, tobj); - if (tobj->tm_got == 0) { - time_get_tm(time, tobj->gmt); - } + MAKE_TM_ENSURE(time, tobj, tobj->vtm.yday != 0); return rb_ary_new3(10, - INT2FIX(tobj->tm.tm_sec), - INT2FIX(tobj->tm.tm_min), - INT2FIX(tobj->tm.tm_hour), - INT2FIX(tobj->tm.tm_mday), - INT2FIX(tobj->tm.tm_mon+1), - LONG2NUM((long)tobj->tm.tm_year+1900), - INT2FIX(tobj->tm.tm_wday), - INT2FIX(tobj->tm.tm_yday+1), - tobj->tm.tm_isdst?Qtrue:Qfalse, - time_zone(time)); -} - -#define SMALLBUF 100 -static int -rb_strftime(char **buf, const char *format, struct tm *time) -{ - int size, len, flen; - - (*buf)[0] = '\0'; - flen = strlen(format); - if (flen == 0) { - return 0; - } - len = strftime(*buf, SMALLBUF, format, time); - if (len != 0 || **buf == '\0') return len; - for (size=1024; ; size*=2) { - *buf = xmalloc(size); - (*buf)[0] = '\0'; - len = strftime(*buf, size, format, time); - /* - * buflen can be zero EITHER because there's not enough - * room in the string, or because the control command - * goes to the empty string. Make a reasonable guess that - * if the buffer is 1024 times bigger than the length of the - * format string, it's not failing for lack of room. - */ - if (len > 0 || size >= 1024 * flen) return len; - free(*buf); - } - /* not reached */ + INT2FIX(tobj->vtm.sec), + INT2FIX(tobj->vtm.min), + INT2FIX(tobj->vtm.hour), + INT2FIX(tobj->vtm.mday), + INT2FIX(tobj->vtm.mon), + tobj->vtm.year, + INT2FIX(tobj->vtm.wday), + INT2FIX(tobj->vtm.yday), + RBOOL(tobj->vtm.isdst), + time_zone(time)); +} + +/* + * call-seq: + * deconstruct_keys(array_of_names_or_nil) -> hash + * + * Returns a hash of the name/value pairs, to use in pattern matching. + * Possible keys are: <tt>:year</tt>, <tt>:month</tt>, <tt>:day</tt>, + * <tt>:yday</tt>, <tt>:wday</tt>, <tt>:hour</tt>, <tt>:min</tt>, <tt>:sec</tt>, + * <tt>:subsec</tt>, <tt>:dst</tt>, <tt>:zone</tt>. + * + * Possible usages: + * + * t = Time.utc(2022, 10, 5, 21, 25, 30) + * + * if t in wday: 3, day: ..7 # uses deconstruct_keys underneath + * puts "first Wednesday of the month" + * end + * #=> prints "first Wednesday of the month" + * + * case t + * in year: ...2022 + * puts "too old" + * in month: ..9 + * puts "quarter 1-3" + * in wday: 1..5, month: + * puts "working day in month #{month}" + * end + * #=> prints "working day in month 10" + * + * Note that deconstruction by pattern can also be combined with class check: + * + * if t in Time(wday: 3, day: ..7) + * puts "first Wednesday of the month" + * end + * + */ +static VALUE +time_deconstruct_keys(VALUE time, VALUE keys) +{ + struct time_object *tobj; + VALUE h; + long i; + + GetTimeval(time, tobj); + MAKE_TM_ENSURE(time, tobj, tobj->vtm.yday != 0); + + if (NIL_P(keys)) { + h = rb_hash_new_with_size(11); + + rb_hash_aset(h, sym_year, tobj->vtm.year); + rb_hash_aset(h, sym_month, INT2FIX(tobj->vtm.mon)); + rb_hash_aset(h, sym_day, INT2FIX(tobj->vtm.mday)); + rb_hash_aset(h, sym_yday, INT2FIX(tobj->vtm.yday)); + rb_hash_aset(h, sym_wday, INT2FIX(tobj->vtm.wday)); + rb_hash_aset(h, sym_hour, INT2FIX(tobj->vtm.hour)); + rb_hash_aset(h, sym_min, INT2FIX(tobj->vtm.min)); + rb_hash_aset(h, sym_sec, INT2FIX(tobj->vtm.sec)); + rb_hash_aset(h, sym_subsec, + quov(w2v(wmod(tobj->timew, WINT2FIXWV(TIME_SCALE))), INT2FIX(TIME_SCALE))); + rb_hash_aset(h, sym_dst, RBOOL(tobj->vtm.isdst)); + rb_hash_aset(h, sym_zone, time_zone(time)); + + return h; + } + if (UNLIKELY(!RB_TYPE_P(keys, T_ARRAY))) { + rb_raise(rb_eTypeError, + "wrong argument type %"PRIsVALUE" (expected Array or nil)", + rb_obj_class(keys)); + + } + + h = rb_hash_new_with_size(RARRAY_LEN(keys)); + + for (i=0; i<RARRAY_LEN(keys); i++) { + VALUE key = RARRAY_AREF(keys, i); + + if (sym_year == key) rb_hash_aset(h, key, tobj->vtm.year); + if (sym_month == key) rb_hash_aset(h, key, INT2FIX(tobj->vtm.mon)); + if (sym_day == key) rb_hash_aset(h, key, INT2FIX(tobj->vtm.mday)); + if (sym_yday == key) rb_hash_aset(h, key, INT2FIX(tobj->vtm.yday)); + if (sym_wday == key) rb_hash_aset(h, key, INT2FIX(tobj->vtm.wday)); + if (sym_hour == key) rb_hash_aset(h, key, INT2FIX(tobj->vtm.hour)); + if (sym_min == key) rb_hash_aset(h, key, INT2FIX(tobj->vtm.min)); + if (sym_sec == key) rb_hash_aset(h, key, INT2FIX(tobj->vtm.sec)); + if (sym_subsec == key) { + rb_hash_aset(h, key, quov(w2v(wmod(tobj->timew, WINT2FIXWV(TIME_SCALE))), INT2FIX(TIME_SCALE))); + } + if (sym_dst == key) rb_hash_aset(h, key, RBOOL(tobj->vtm.isdst)); + if (sym_zone == key) rb_hash_aset(h, key, time_zone(time)); + } + return h; +} + +static VALUE +rb_strftime_alloc(const char *format, size_t format_len, rb_encoding *enc, + VALUE time, struct vtm *vtm, wideval_t timew, int gmt) +{ + VALUE timev = Qnil; + struct timespec ts; + + if (!timew2timespec_exact(timew, &ts)) + timev = w2v(rb_time_unmagnify(timew)); + + if (NIL_P(timev)) { + return rb_strftime_timespec(format, format_len, enc, time, vtm, &ts, gmt); + } + else { + return rb_strftime(format, format_len, enc, time, vtm, timev, gmt); + } +} + +static VALUE +strftime_cstr(const char *fmt, size_t len, VALUE time, rb_encoding *enc) +{ + struct time_object *tobj; + VALUE str; + + GetTimeval(time, tobj); + MAKE_TM(time, tobj); + str = rb_strftime_alloc(fmt, len, enc, time, &tobj->vtm, tobj->timew, TZMODE_UTC_P(tobj)); + if (!str) rb_raise(rb_eArgError, "invalid format: %s", fmt); + return str; } /* * call-seq: - * time.strftime( string ) => string - * - * Formats <i>time</i> according to the directives in the given format - * string. Any text not listed as a directive will be passed through - * to the output string. - * - * Format meaning: - * %a - The abbreviated weekday name (``Sun'') - * %A - The full weekday name (``Sunday'') - * %b - The abbreviated month name (``Jan'') - * %B - The full month name (``January'') - * %c - The preferred local date and time representation - * %d - Day of the month (01..31) - * %H - Hour of the day, 24-hour clock (00..23) - * %I - Hour of the day, 12-hour clock (01..12) - * %j - Day of the year (001..366) - * %m - Month of the year (01..12) - * %M - Minute of the hour (00..59) - * %p - Meridian indicator (``AM'' or ``PM'') - * %S - Second of the minute (00..60) - * %U - Week number of the current year, - * starting with the first Sunday as the first - * day of the first week (00..53) - * %W - Week number of the current year, - * starting with the first Monday as the first - * day of the first week (00..53) - * %w - Day of the week (Sunday is 0, 0..6) - * %x - Preferred representation for the date alone, no time - * %X - Preferred representation for the time alone, no date - * %y - Year without a century (00..99) - * %Y - Year with century - * %Z - Time zone name - * %% - Literal ``%'' character - * - * t = Time.now - * t.strftime("Printed on %m/%d/%Y") #=> "Printed on 04/09/2003" - * t.strftime("at %I:%M%p") #=> "at 08:56AM" + * strftime(format_string) -> string + * + * Returns a string representation of +self+, + * formatted according to the given string +format+. + * See {Formats for Dates and Times}[rdoc-ref:strftime_formatting.rdoc]. */ static VALUE time_strftime(VALUE time, VALUE format) { struct time_object *tobj; - char buffer[SMALLBUF], *buf = buffer; const char *fmt; long len; - VALUE str; + rb_encoding *enc; + VALUE tmp; GetTimeval(time, tobj); - if (tobj->tm_got == 0) { - time_get_tm(time, tobj->gmt); - } + MAKE_TM_ENSURE(time, tobj, tobj->vtm.yday != 0); StringValue(format); - format = rb_str_new4(format); - fmt = RSTRING_PTR(format); - len = RSTRING_LEN(format); + if (!rb_enc_str_asciicompat_p(format)) { + rb_raise(rb_eArgError, "format should have ASCII compatible encoding"); + } + tmp = rb_str_tmp_frozen_acquire(format); + fmt = RSTRING_PTR(tmp); + len = RSTRING_LEN(tmp); + enc = rb_enc_get(format); if (len == 0) { - rb_warning("strftime called with empty format string"); - } - else if (strlen(fmt) < len) { - /* Ruby string may contain \0's. */ - const char *p = fmt, *pe = fmt + len; - - str = rb_str_new(0, 0); - while (p < pe) { - len = rb_strftime(&buf, p, &tobj->tm); - rb_str_cat(str, buf, len); - p += strlen(p); - if (buf != buffer) { - free(buf); - buf = buffer; - } - for (fmt = p; p < pe && !*p; ++p); - if (p > fmt) rb_str_cat(str, fmt, p - fmt); - } - return str; + rb_warning("strftime called with empty format string"); + return rb_enc_str_new(0, 0, enc); } else { - len = rb_strftime(&buf, RSTRING_PTR(format), &tobj->tm); + VALUE str = rb_strftime_alloc(fmt, len, enc, time, &tobj->vtm, tobj->timew, + TZMODE_UTC_P(tobj)); + rb_str_tmp_frozen_release(format, tmp); + if (!str) rb_raise(rb_eArgError, "invalid format: %"PRIsVALUE, format); + return str; } - str = rb_str_new(buf, len); - if (buf != buffer) free(buf); - return str; } /* - * undocumented + * call-seq: + * xmlschema(fraction_digits=0) -> string + * + * Returns a string which represents the time as a dateTime defined by XML + * Schema: + * + * CCYY-MM-DDThh:mm:ssTZD + * CCYY-MM-DDThh:mm:ss.sssTZD + * + * where TZD is Z or [+-]hh:mm. + * + * If self is a UTC time, Z is used as TZD. [+-]hh:mm is used otherwise. + * + * +fraction_digits+ specifies a number of digits to use for fractional + * seconds. Its default value is 0. + * + * t = Time.now + * t.xmlschema # => "2011-10-05T22:26:12-04:00" */ static VALUE +time_xmlschema(int argc, VALUE *argv, VALUE time) +{ + long fraction_digits = 0; + rb_check_arity(argc, 0, 1); + if (argc > 0) { + fraction_digits = NUM2LONG(argv[0]); + if (fraction_digits < 0) { + fraction_digits = 0; + } + } + + struct time_object *tobj; + + GetTimeval(time, tobj); + MAKE_TM(time, tobj); + + const long size_after_year = sizeof("-MM-DDTHH:MM:SS+ZH:ZM") + fraction_digits + + (fraction_digits > 0); + VALUE str; + char *ptr; + +# define fill_digits_long(len, prec, n) \ + for (int fill_it = 1, written = snprintf(ptr, len, "%0*ld", prec, n); \ + fill_it; ptr += written, fill_it = 0) + + if (FIXNUM_P(tobj->vtm.year)) { + long year = FIX2LONG(tobj->vtm.year); + int year_width = (year < 0) + rb_strlen_lit("YYYY"); + int w = (year >= -9999 && year <= 9999 ? year_width : (year < 0) + (int)DECIMAL_SIZE_OF(year)); + str = rb_usascii_str_new(0, w + size_after_year); + ptr = RSTRING_PTR(str); + fill_digits_long(w + 1, year_width, year) { + if (year >= -9999 && year <= 9999) { + RUBY_ASSERT(written == year_width); + } + else { + RUBY_ASSERT(written >= year_width); + RUBY_ASSERT(written <= w); + } + } + } + else { + str = rb_int2str(tobj->vtm.year, 10); + rb_str_modify_expand(str, size_after_year); + ptr = RSTRING_END(str); + } + +# define fill_2(c, n) (*ptr++ = c, *ptr++ = '0' + (n) / 10, *ptr++ = '0' + (n) % 10) + fill_2('-', tobj->vtm.mon); + fill_2('-', tobj->vtm.mday); + fill_2('T', tobj->vtm.hour); + fill_2(':', tobj->vtm.min); + fill_2(':', tobj->vtm.sec); + + if (fraction_digits > 0) { + VALUE subsecx = tobj->vtm.subsecx; + long subsec; + int digits = -1; + *ptr++ = '.'; + if (fraction_digits <= TIME_SCALE_NUMDIGITS) { + digits = TIME_SCALE_NUMDIGITS - (int)fraction_digits; + } + else { + long w = fraction_digits - TIME_SCALE_NUMDIGITS; /* > 0 */ + subsecx = mulv(subsecx, rb_int_positive_pow(10, (unsigned long)w)); + if (!RB_INTEGER_TYPE_P(subsecx)) { /* maybe Rational */ + subsecx = rb_Integer(subsecx); + } + if (FIXNUM_P(subsecx)) digits = 0; + } + if (digits >= 0 && fraction_digits < INT_MAX) { + subsec = NUM2LONG(subsecx); + if (digits > 0) subsec /= (long)pow(10, digits); + fill_digits_long(fraction_digits + 1, (int)fraction_digits, subsec) { + RUBY_ASSERT(written == (int)fraction_digits); + } + } + else { + subsecx = rb_int2str(subsecx, 10); + long len = RSTRING_LEN(subsecx); + if (fraction_digits > len) { + memset(ptr, '0', fraction_digits - len); + } + else { + len = fraction_digits; + } + ptr += fraction_digits; + memcpy(ptr - len, RSTRING_PTR(subsecx), len); + } + } + + if (TZMODE_UTC_P(tobj)) { + *ptr = 'Z'; + ptr++; + } + else { + long offset = NUM2LONG(rb_time_utc_offset(time)); + char sign = offset < 0 ? '-' : '+'; + if (offset < 0) offset = -offset; + offset /= 60; + fill_2(sign, offset / 60); + fill_2(':', offset % 60); + } + const char *const start = RSTRING_PTR(str); + rb_str_set_len(str, ptr - start); // We could skip coderange scanning as we know it's full ASCII. + return str; +} + +int ruby_marshal_write_long(long x, char *buf); + +enum {base_dump_size = 8}; + +/* :nodoc: */ +static VALUE time_mdump(VALUE time) { struct time_object *tobj; - struct tm *tm; unsigned long p, s; - char buf[8]; - time_t t; + char buf[base_dump_size + sizeof(long) + 1]; int i; + VALUE str; + + struct vtm vtm; + long year; + long usec, nsec; + VALUE subsecx, nano, subnano, v, zone; + + VALUE year_extend = Qnil; + const int max_year = 1900+0xffff; GetTimeval(time, tobj); - t = tobj->tv.tv_sec; - tm = gmtime(&t); + gmtimew(tobj->timew, &vtm); + + if (FIXNUM_P(vtm.year)) { + year = FIX2LONG(vtm.year); + if (year > max_year) { + year_extend = INT2FIX(year - max_year); + year = max_year; + } + else if (year < 1900) { + year_extend = LONG2NUM(1900 - year); + year = 1900; + } + } + else { + if (rb_int_positive_p(vtm.year)) { + year_extend = rb_int_minus(vtm.year, INT2FIX(max_year)); + year = max_year; + } + else { + year_extend = rb_int_minus(INT2FIX(1900), vtm.year); + year = 1900; + } + } + + subsecx = vtm.subsecx; - if ((tm->tm_year & 0xffff) != tm->tm_year) - rb_raise(rb_eArgError, "year too big to marshal"); + nano = mulquov(subsecx, INT2FIX(1000000000), INT2FIX(TIME_SCALE)); + divmodv(nano, INT2FIX(1), &v, &subnano); + nsec = FIX2LONG(v); + usec = nsec / 1000; + nsec = nsec % 1000; - p = 0x1UL << 31 | /* 1 */ - tobj->gmt << 30 | /* 1 */ - tm->tm_year << 14 | /* 16 */ - tm->tm_mon << 10 | /* 4 */ - tm->tm_mday << 5 | /* 5 */ - tm->tm_hour; /* 5 */ - s = tm->tm_min << 26 | /* 6 */ - tm->tm_sec << 20 | /* 6 */ - tobj->tv.tv_usec; /* 20 */ + nano = addv(LONG2FIX(nsec), subnano); + + p = 0x1UL << 31 | /* 1 */ + TZMODE_UTC_P(tobj) << 30 | /* 1 */ + (year-1900) << 14 | /* 16 */ + (vtm.mon-1) << 10 | /* 4 */ + vtm.mday << 5 | /* 5 */ + vtm.hour; /* 5 */ + s = (unsigned long)vtm.min << 26 | /* 6 */ + vtm.sec << 20 | /* 6 */ + usec; /* 20 */ for (i=0; i<4; i++) { - buf[i] = p & 0xff; - p = RSHIFT(p, 8); + buf[i] = (unsigned char)p; + p = RSHIFT(p, 8); } for (i=4; i<8; i++) { - buf[i] = s & 0xff; - s = RSHIFT(s, 8); + buf[i] = (unsigned char)s; + s = RSHIFT(s, 8); } - return rb_str_new(buf, 8); + if (!NIL_P(year_extend)) { + /* + * Append extended year distance from 1900..(1900+0xffff). In + * each cases, there is no sign as the value is positive. The + * format is length (marshaled long) + little endian packed + * binary (like as Integer). + */ + size_t ysize = rb_absint_size(year_extend, NULL); + char *p, *const buf_year_extend = buf + base_dump_size; + if (ysize > LONG_MAX || + (i = ruby_marshal_write_long((long)ysize, buf_year_extend)) < 0) { + rb_raise(rb_eArgError, "year too %s to marshal: %"PRIsVALUE" UTC", + (year == 1900 ? "small" : "big"), vtm.year); + } + i += base_dump_size; + str = rb_str_new(NULL, i + ysize); + p = RSTRING_PTR(str); + memcpy(p, buf, i); + p += i; + rb_integer_pack(year_extend, p, ysize, 1, 0, INTEGER_PACK_LITTLE_ENDIAN); + } + else { + str = rb_str_new(buf, base_dump_size); + } + rb_copy_generic_ivar(str, time); + if (!rb_equal(nano, INT2FIX(0))) { + if (RB_TYPE_P(nano, T_RATIONAL)) { + rb_ivar_set(str, id_nano_num, RRATIONAL(nano)->num); + rb_ivar_set(str, id_nano_den, RRATIONAL(nano)->den); + } + else { + rb_ivar_set(str, id_nano_num, nano); + rb_ivar_set(str, id_nano_den, INT2FIX(1)); + } + } + if (nsec) { /* submicro is only for Ruby 1.9.1 compatibility */ + /* + * submicro is formatted in fixed-point packed BCD (without sign). + * It represent digits under microsecond. + * For nanosecond resolution, 3 digits (2 bytes) are used. + * However it can be longer. + * Extra digits are ignored for loading. + */ + char buf[2]; + int len = (int)sizeof(buf); + buf[1] = (char)((nsec % 10) << 4); + nsec /= 10; + buf[0] = (char)(nsec % 10); + nsec /= 10; + buf[0] |= (char)((nsec % 10) << 4); + if (buf[1] == 0) + len = 1; + rb_ivar_set(str, id_submicro, rb_str_new(buf, len)); + } + if (!TZMODE_UTC_P(tobj)) { + VALUE off = rb_time_utc_offset(time), div, mod; + divmodv(off, INT2FIX(1), &div, &mod); + if (rb_equal(mod, INT2FIX(0))) + off = rb_Integer(div); + rb_ivar_set(str, id_offset, off); + } + zone = tobj->vtm.zone; + if (maybe_tzobj_p(zone)) { + zone = rb_funcallv(zone, id_name, 0, 0); + } + rb_ivar_set(str, id_zone, zone); + return str; } -/* - * call-seq: - * time._dump => string - * - * Dump _time_ for marshaling. - */ - +/* :nodoc: */ static VALUE time_dump(int argc, VALUE *argv, VALUE time) { VALUE str; - rb_scan_args(argc, argv, "01", 0); - str = time_mdump(time); - rb_copy_generic_ivar(str, time); + rb_check_arity(argc, 0, 1); + str = time_mdump(time); return str; } -/* - * undocumented - */ +static VALUE +mload_findzone(VALUE arg) +{ + VALUE *argp = (VALUE *)arg; + VALUE time = argp[0], zone = argp[1]; + return find_timezone(time, zone); +} + +static VALUE +mload_zone(VALUE time, VALUE zone) +{ + VALUE z, args[2]; + args[0] = time; + args[1] = zone; + z = rb_rescue(mload_findzone, (VALUE)args, 0, Qnil); + if (NIL_P(z)) return rb_fstring(zone); + if (RB_TYPE_P(z, T_STRING)) return rb_fstring(z); + return z; +} +long ruby_marshal_read_long(const char **buf, long len); + +/* :nodoc: */ static VALUE time_mload(VALUE time, VALUE str) { struct time_object *tobj; unsigned long p, s; - time_t sec, usec; + time_t sec; + long usec; unsigned char *buf; - struct tm tm; + struct vtm vtm; int i, gmt; + long nsec; + VALUE submicro, nano_num, nano_den, offset, zone, year; + wideval_t timew; time_modify(time); + +#define get_attr(attr, iffound) \ + attr = rb_attr_delete(str, id_##attr); \ + if (!NIL_P(attr)) { \ + iffound; \ + } + + get_attr(nano_num, {}); + get_attr(nano_den, {}); + get_attr(submicro, {}); + get_attr(offset, (offset = rb_rescue(validate_utc_offset, offset, 0, Qnil))); + get_attr(zone, (zone = rb_rescue(validate_zone_name, zone, 0, Qnil))); + get_attr(year, {}); + +#undef get_attr + + rb_copy_generic_ivar(time, str); + StringValue(str); buf = (unsigned char *)RSTRING_PTR(str); - if (RSTRING_LEN(str) != 8) { - rb_raise(rb_eTypeError, "marshaled time format differ"); + if (RSTRING_LEN(str) < base_dump_size) { + goto invalid_format; } p = s = 0; for (i=0; i<4; i++) { - p |= buf[i]<<(8*i); + p |= (unsigned long)buf[i]<<(8*i); } for (i=4; i<8; i++) { - s |= buf[i]<<(8*(i-4)); + s |= (unsigned long)buf[i]<<(8*(i-4)); } if ((p & (1UL<<31)) == 0) { gmt = 0; - sec = p; - usec = s; + offset = Qnil; + sec = p; + usec = s; + nsec = usec * 1000; + timew = wadd(rb_time_magnify(TIMET2WV(sec)), wmulquoll(WINT2FIXWV(usec), TIME_SCALE, 1000000)); } else { - p &= ~(1UL<<31); - gmt = (p >> 30) & 0x1; - tm.tm_year = (p >> 14) & 0xffff; - tm.tm_mon = (p >> 10) & 0xf; - tm.tm_mday = (p >> 5) & 0x1f; - tm.tm_hour = p & 0x1f; - tm.tm_min = (s >> 26) & 0x3f; - tm.tm_sec = (s >> 20) & 0x3f; - tm.tm_isdst = 0; + p &= ~(1UL<<31); + gmt = (int)((p >> 30) & 0x1); + + if (NIL_P(year)) { + year = INT2FIX(((int)(p >> 14) & 0xffff) + 1900); + } + if (RSTRING_LEN(str) > base_dump_size) { + long len = RSTRING_LEN(str) - base_dump_size; + long ysize = 0; + VALUE year_extend; + const char *ybuf = (const char *)(buf += base_dump_size); + ysize = ruby_marshal_read_long(&ybuf, len); + len -= ybuf - (const char *)buf; + if (ysize < 0 || ysize > len) goto invalid_format; + year_extend = rb_integer_unpack(ybuf, ysize, 1, 0, INTEGER_PACK_LITTLE_ENDIAN); + if (year == INT2FIX(1900)) { + year = rb_int_minus(year, year_extend); + } + else { + year = rb_int_plus(year, year_extend); + } + } + unsigned int mon = ((int)(p >> 10) & 0xf); /* 0...12 */ + if (mon >= 12) { + mon -= 12; + year = addv(year, LONG2FIX(1)); + } + vtm.year = year; + vtm.mon = mon + 1; + vtm.mday = (int)(p >> 5) & 0x1f; + vtm.hour = (int) p & 0x1f; + vtm.min = (int)(s >> 26) & 0x3f; + vtm.sec = (int)(s >> 20) & 0x3f; + vtm.utc_offset = INT2FIX(0); + vtm.yday = vtm.wday = 0; + vtm.isdst = 0; + vtm.zone = str_empty; + + usec = (long)(s & 0xfffff); + nsec = usec * 1000; + + + vtm.subsecx = mulquov(LONG2FIX(nsec), INT2FIX(TIME_SCALE), LONG2FIX(1000000000)); + if (nano_num != Qnil) { + VALUE nano = quov(num_exact(nano_num), num_exact(nano_den)); + vtm.subsecx = addv(vtm.subsecx, mulquov(nano, INT2FIX(TIME_SCALE), LONG2FIX(1000000000))); + } + else if (submicro != Qnil) { /* for Ruby 1.9.1 compatibility */ + unsigned char *ptr; + long len; + int digit; + ptr = (unsigned char*)StringValuePtr(submicro); + len = RSTRING_LEN(submicro); + nsec = 0; + if (0 < len) { + if (10 <= (digit = ptr[0] >> 4)) goto end_submicro; + nsec += digit * 100; + if (10 <= (digit = ptr[0] & 0xf)) goto end_submicro; + nsec += digit * 10; + } + if (1 < len) { + if (10 <= (digit = ptr[1] >> 4)) goto end_submicro; + nsec += digit; + } + vtm.subsecx = addv(vtm.subsecx, mulquov(LONG2FIX(nsec), INT2FIX(TIME_SCALE), LONG2FIX(1000000000))); +end_submicro: ; + } + timew = timegmw(&vtm); + } + + GetNewTimeval(time, tobj); + TZMODE_SET_LOCALTIME(tobj); + tobj->vtm.tm_got = 0; + time_set_timew(time, tobj, timew); - sec = make_time_t(&tm, Qtrue); - usec = (time_t)(s & 0xfffff); + if (gmt) { + TZMODE_SET_UTC(tobj); + } + else if (!NIL_P(offset)) { + time_set_utc_offset(time, offset); + time_fixoff(time); + } + if (!NIL_P(zone)) { + zone = mload_zone(time, zone); + RB_OBJ_WRITE(time, &tobj->vtm.zone, zone); + zone_localtime(zone, time); } - time_overflow_p(&sec, &usec); - GetTimeval(time, tobj); - tobj->tm_got = 0; - tobj->gmt = gmt; - tobj->tv.tv_sec = sec; - tobj->tv.tv_usec = usec; + return time; + + invalid_format: + rb_raise(rb_eTypeError, "marshaled time format differ"); + UNREACHABLE_RETURN(Qundef); +} + +/* :nodoc: */ +static VALUE +time_load(VALUE klass, VALUE str) +{ + VALUE time = time_s_alloc(klass); + + time_mload(time, str); return time; } +/* :nodoc:*/ +/* Document-class: Time::tm + * + * A container class for timezone conversion. + */ + /* * call-seq: - * Time._load(string) => time + * Time::tm.from_time(t) -> tm * - * Unmarshal a dumped +Time+ object. + * Creates new Time::tm object from a Time object. */ static VALUE -time_load(VALUE klass, VALUE str) +tm_from_time(VALUE klass, VALUE time) { - VALUE time = time_s_alloc(klass); + struct time_object *tobj; + struct vtm vtm, *v; + VALUE tm; + struct time_object *ttm; - rb_copy_generic_ivar(time, str); - time_mload(time, str); - return time; + GetTimeval(time, tobj); + tm = time_s_alloc(klass); + ttm = RTYPEDDATA_GET_DATA(tm); + v = &vtm; + + WIDEVALUE timew = tobj->timew; + GMTIMEW(timew, v); + time_set_timew(tm, ttm, wsub(timew, v->subsecx)); + v->subsecx = INT2FIX(0); + v->zone = Qnil; + time_set_vtm(tm, ttm, *v); + + ttm->vtm.tm_got = 1; + TZMODE_SET_UTC(ttm); + return tm; } /* - * <code>Time</code> is an abstraction of dates and times. Time is - * stored internally as the number of seconds and microseconds since - * the <em>epoch</em>, January 1, 1970 00:00 UTC. On some operating - * systems, this offset is allowed to be negative. Also see the - * library modules <code>Date</code> and <code>ParseDate</code>. The - * <code>Time</code> class treats GMT (Greenwich Mean Time) and UTC - * (Coordinated Universal Time)<em>[Yes, UTC really does stand for - * Coordinated Universal Time. There was a committee involved.]</em> - * as equivalent. GMT is the older way of referring to these - * baseline times but persists in the names of calls on Posix - * systems. - * - * All times are stored with some number of microseconds. Be aware of - * this fact when comparing times with each other---times that are - * apparently equal when displayed may be different when compared. + * call-seq: + * Time::tm.new(year, month=nil, day=nil, hour=nil, min=nil, sec=nil, zone=nil) -> tm + * + * Creates new Time::tm object. */ +static VALUE +tm_initialize(int argc, VALUE *argv, VALUE time) +{ + struct vtm vtm; + wideval_t t; + + if (rb_check_arity(argc, 1, 7) > 6) argc = 6; + time_arg(argc, argv, &vtm); + t = timegmw(&vtm); + struct time_object *tobj = RTYPEDDATA_GET_DATA(time); + TZMODE_SET_UTC(tobj); + time_set_timew(time, tobj, t); + time_set_vtm(time, tobj, vtm); + + return time; +} + +/* call-seq: + * tm.to_time -> time + * + * Returns a new Time object. + */ + +static VALUE +tm_to_time(VALUE tm) +{ + struct time_object *torig = get_timeval(tm); + VALUE dup = time_s_alloc(rb_cTime); + struct time_object *tobj = RTYPEDDATA_GET_DATA(dup); + *tobj = *torig; + return dup; +} + +static VALUE +tm_plus(VALUE tm, VALUE offset) +{ + return time_add0(rb_obj_class(tm), get_timeval(tm), tm, offset, +1); +} + +static VALUE +tm_minus(VALUE tm, VALUE offset) +{ + return time_add0(rb_obj_class(tm), get_timeval(tm), tm, offset, -1); +} + +static VALUE +Init_tm(VALUE outer, const char *name) +{ + /* :stopdoc:*/ + VALUE tm; + tm = rb_define_class_under(outer, name, rb_cObject); + rb_define_alloc_func(tm, time_s_alloc); + rb_define_method(tm, "sec", time_sec, 0); + rb_define_method(tm, "min", time_min, 0); + rb_define_method(tm, "hour", time_hour, 0); + rb_define_method(tm, "mday", time_mday, 0); + rb_define_method(tm, "day", time_mday, 0); + rb_define_method(tm, "mon", time_mon, 0); + rb_define_method(tm, "month", time_mon, 0); + rb_define_method(tm, "year", time_year, 0); + rb_define_method(tm, "isdst", time_isdst, 0); + rb_define_method(tm, "dst?", time_isdst, 0); + rb_define_method(tm, "zone", time_zone, 0); + rb_define_method(tm, "gmtoff", rb_time_utc_offset, 0); + rb_define_method(tm, "gmt_offset", rb_time_utc_offset, 0); + rb_define_method(tm, "utc_offset", rb_time_utc_offset, 0); + rb_define_method(tm, "utc?", time_utc_p, 0); + rb_define_method(tm, "gmt?", time_utc_p, 0); + rb_define_method(tm, "to_s", time_to_s, 0); + rb_define_method(tm, "inspect", time_inspect, 0); + rb_define_method(tm, "to_a", time_to_a, 0); + rb_define_method(tm, "tv_sec", time_to_i, 0); + rb_define_method(tm, "tv_usec", time_usec, 0); + rb_define_method(tm, "usec", time_usec, 0); + rb_define_method(tm, "tv_nsec", time_nsec, 0); + rb_define_method(tm, "nsec", time_nsec, 0); + rb_define_method(tm, "subsec", time_subsec, 0); + rb_define_method(tm, "to_i", time_to_i, 0); + rb_define_method(tm, "to_f", time_to_f, 0); + rb_define_method(tm, "to_r", time_to_r, 0); + rb_define_method(tm, "+", tm_plus, 1); + rb_define_method(tm, "-", tm_minus, 1); + rb_define_method(tm, "initialize", tm_initialize, -1); + rb_define_method(tm, "utc", tm_to_time, 0); + rb_alias(tm, rb_intern_const("to_time"), rb_intern_const("utc")); + rb_define_singleton_method(tm, "from_time", tm_from_time, 1); + /* :startdoc:*/ + + return tm; +} + +VALUE +rb_time_zone_abbreviation(VALUE zone, VALUE time) +{ + VALUE tm, abbr, strftime_args[2]; + + abbr = rb_check_string_type(zone); + if (!NIL_P(abbr)) return abbr; + + tm = tm_from_time(rb_cTimeTM, time); + abbr = rb_check_funcall(zone, rb_intern("abbr"), 1, &tm); + if (!UNDEF_P(abbr)) { + goto found; + } +#ifdef SUPPORT_TZINFO_ZONE_ABBREVIATION + abbr = rb_check_funcall(zone, rb_intern("period_for_utc"), 1, &tm); + if (!UNDEF_P(abbr)) { + abbr = rb_funcallv(abbr, rb_intern("abbreviation"), 0, 0); + goto found; + } +#endif + strftime_args[0] = rb_fstring_lit("%Z"); + strftime_args[1] = tm; + abbr = rb_check_funcall(zone, rb_intern("strftime"), 2, strftime_args); + if (!UNDEF_P(abbr)) { + goto found; + } + abbr = rb_check_funcall_default(zone, idName, 0, 0, Qnil); + found: + return rb_obj_as_string(abbr); +} + +// void Init_Time(void) { +#ifdef _WIN32 + ruby_reset_timezone(getenv("TZ")); +#endif + + id_submicro = rb_intern_const("submicro"); + id_nano_num = rb_intern_const("nano_num"); + id_nano_den = rb_intern_const("nano_den"); + id_offset = rb_intern_const("offset"); + id_zone = rb_intern_const("zone"); + id_nanosecond = rb_intern_const("nanosecond"); + id_microsecond = rb_intern_const("microsecond"); + id_millisecond = rb_intern_const("millisecond"); + id_nsec = rb_intern_const("nsec"); + id_usec = rb_intern_const("usec"); + id_local_to_utc = rb_intern_const("local_to_utc"); + id_utc_to_local = rb_intern_const("utc_to_local"); + id_year = rb_intern_const("year"); + id_mon = rb_intern_const("mon"); + id_mday = rb_intern_const("mday"); + id_hour = rb_intern_const("hour"); + id_min = rb_intern_const("min"); + id_sec = rb_intern_const("sec"); + id_isdst = rb_intern_const("isdst"); + id_find_timezone = rb_intern_const("find_timezone"); + + sym_year = ID2SYM(rb_intern_const("year")); + sym_month = ID2SYM(rb_intern_const("month")); + sym_yday = ID2SYM(rb_intern_const("yday")); + sym_wday = ID2SYM(rb_intern_const("wday")); + sym_day = ID2SYM(rb_intern_const("day")); + sym_hour = ID2SYM(rb_intern_const("hour")); + sym_min = ID2SYM(rb_intern_const("min")); + sym_sec = ID2SYM(rb_intern_const("sec")); + sym_subsec = ID2SYM(rb_intern_const("subsec")); + sym_dst = ID2SYM(rb_intern_const("dst")); + sym_zone = ID2SYM(rb_intern_const("zone")); + + str_utc = rb_fstring_lit("UTC"); + rb_vm_register_global_object(str_utc); + str_empty = rb_fstring_lit(""); + rb_vm_register_global_object(str_empty); + rb_cTime = rb_define_class("Time", rb_cObject); + VALUE scTime = rb_singleton_class(rb_cTime); rb_include_module(rb_cTime, rb_mComparable); rb_define_alloc_func(rb_cTime, time_s_alloc); - rb_define_singleton_method(rb_cTime, "now", rb_class_new_instance, -1); - rb_define_singleton_method(rb_cTime, "at", time_s_at, -1); rb_define_singleton_method(rb_cTime, "utc", time_s_mkutc, -1); - rb_define_singleton_method(rb_cTime, "gm", time_s_mkutc, -1); rb_define_singleton_method(rb_cTime, "local", time_s_mktime, -1); - rb_define_singleton_method(rb_cTime, "mktime", time_s_mktime, -1); + rb_define_alias(scTime, "gm", "utc"); + rb_define_alias(scTime, "mktime", "local"); rb_define_method(rb_cTime, "to_i", time_to_i, 0); rb_define_method(rb_cTime, "to_f", time_to_f, 0); + rb_define_method(rb_cTime, "to_r", time_to_r, 0); rb_define_method(rb_cTime, "<=>", time_cmp, 1); rb_define_method(rb_cTime, "eql?", time_eql, 1); rb_define_method(rb_cTime, "hash", time_hash, 0); - rb_define_method(rb_cTime, "initialize", time_init, 0); rb_define_method(rb_cTime, "initialize_copy", time_init_copy, 1); - rb_define_method(rb_cTime, "localtime", time_localtime, 0); + rb_define_method(rb_cTime, "localtime", time_localtime_m, -1); rb_define_method(rb_cTime, "gmtime", time_gmtime, 0); rb_define_method(rb_cTime, "utc", time_gmtime, 0); - rb_define_method(rb_cTime, "getlocal", time_getlocaltime, 0); + rb_define_method(rb_cTime, "getlocal", time_getlocaltime, -1); rb_define_method(rb_cTime, "getgm", time_getgmtime, 0); rb_define_method(rb_cTime, "getutc", time_getgmtime, 0); rb_define_method(rb_cTime, "ctime", time_asctime, 0); rb_define_method(rb_cTime, "asctime", time_asctime, 0); rb_define_method(rb_cTime, "to_s", time_to_s, 0); - rb_define_method(rb_cTime, "inspect", time_to_s, 0); + rb_define_method(rb_cTime, "inspect", time_inspect, 0); rb_define_method(rb_cTime, "to_a", time_to_a, 0); + rb_define_method(rb_cTime, "deconstruct_keys", time_deconstruct_keys, 1); rb_define_method(rb_cTime, "+", time_plus, 1); rb_define_method(rb_cTime, "-", time_minus, 1); - rb_define_method(rb_cTime, "succ", time_succ, 0); + rb_define_method(rb_cTime, "round", time_round, -1); + rb_define_method(rb_cTime, "floor", time_floor, -1); + rb_define_method(rb_cTime, "ceil", time_ceil, -1); + rb_define_method(rb_cTime, "sec", time_sec, 0); rb_define_method(rb_cTime, "min", time_min, 0); rb_define_method(rb_cTime, "hour", time_hour, 0); @@ -2127,9 +6027,9 @@ Init_Time(void) rb_define_method(rb_cTime, "isdst", time_isdst, 0); rb_define_method(rb_cTime, "dst?", time_isdst, 0); rb_define_method(rb_cTime, "zone", time_zone, 0); - rb_define_method(rb_cTime, "gmtoff", time_utc_offset, 0); - rb_define_method(rb_cTime, "gmt_offset", time_utc_offset, 0); - rb_define_method(rb_cTime, "utc_offset", time_utc_offset, 0); + rb_define_method(rb_cTime, "gmtoff", rb_time_utc_offset, 0); + rb_define_method(rb_cTime, "gmt_offset", rb_time_utc_offset, 0); + rb_define_method(rb_cTime, "utc_offset", rb_time_utc_offset, 0); rb_define_method(rb_cTime, "utc?", time_utc_p, 0); rb_define_method(rb_cTime, "gmt?", time_utc_p, 0); @@ -2145,15 +6045,24 @@ Init_Time(void) rb_define_method(rb_cTime, "tv_sec", time_to_i, 0); rb_define_method(rb_cTime, "tv_usec", time_usec, 0); rb_define_method(rb_cTime, "usec", time_usec, 0); + rb_define_method(rb_cTime, "tv_nsec", time_nsec, 0); + rb_define_method(rb_cTime, "nsec", time_nsec, 0); + rb_define_method(rb_cTime, "subsec", time_subsec, 0); rb_define_method(rb_cTime, "strftime", time_strftime, 1); + rb_define_method(rb_cTime, "xmlschema", time_xmlschema, -1); + rb_define_alias(rb_cTime, "iso8601", "xmlschema"); /* methods for marshaling */ - rb_define_method(rb_cTime, "_dump", time_dump, -1); - rb_define_singleton_method(rb_cTime, "_load", time_load, 1); -#if 0 - /* Time will support marshal_dump and marshal_load in the future (1.9 maybe) */ - rb_define_method(rb_cTime, "marshal_dump", time_mdump, 0); - rb_define_method(rb_cTime, "marshal_load", time_mload, 1); -#endif + rb_define_private_method(rb_cTime, "_dump", time_dump, -1); + rb_define_private_method(scTime, "_load", time_load, 1); + + if (debug_find_time_numguess) { + rb_define_hooked_variable("$find_time_numguess", (VALUE *)&find_time_numguess, + find_time_numguess_getter, 0); + } + + rb_cTimeTM = Init_tm(rb_cTime, "tm"); } + +#include "timev.rbinc" |