diff options
Diffstat (limited to 'ruby_1_8_5/ext/gdbm/gdbm.c')
-rw-r--r-- | ruby_1_8_5/ext/gdbm/gdbm.c | 1022 |
1 files changed, 1022 insertions, 0 deletions
diff --git a/ruby_1_8_5/ext/gdbm/gdbm.c b/ruby_1_8_5/ext/gdbm/gdbm.c new file mode 100644 index 0000000000..691d512460 --- /dev/null +++ b/ruby_1_8_5/ext/gdbm/gdbm.c @@ -0,0 +1,1022 @@ +/************************************************ + + gdbm.c - + + $Author: usa $ + $Date: 2005/06/20 07:53:20 $ + modified at: Mon Jan 24 15:59:52 JST 1994 + +************************************************/ + +#include "ruby.h" + +#include <gdbm.h> +#include <fcntl.h> +#include <errno.h> + +static VALUE rb_cGDBM, rb_eGDBMError, rb_eGDBMFatalError; + +#define RUBY_GDBM_RW_BIT 0x20000000 + +#define MY_BLOCK_SIZE (2048) +#define MY_FATAL_FUNC rb_gdbm_fatal +static void +rb_gdbm_fatal(msg) + char *msg; +{ + rb_raise(rb_eGDBMFatalError, msg); +} + +struct dbmdata { + int di_size; + GDBM_FILE di_dbm; +}; + +static void +closed_dbm() +{ + rb_raise(rb_eRuntimeError, "closed GDBM file"); +} + +#define GetDBM(obj, dbmp) do {\ + Data_Get_Struct(obj, struct dbmdata, dbmp);\ + if (dbmp == 0) closed_dbm();\ + if (dbmp->di_dbm == 0) closed_dbm();\ +} while (0) + +#define GetDBM2(obj, data, dbm) {\ + GetDBM(obj, data);\ + (dbm) = dbmp->di_dbm;\ +} + +static void +free_dbm(dbmp) + struct dbmdata *dbmp; +{ + if (dbmp) { + if (dbmp->di_dbm) gdbm_close(dbmp->di_dbm); + free(dbmp); + } +} + +static VALUE +fgdbm_close(obj) + VALUE obj; +{ + struct dbmdata *dbmp; + + GetDBM(obj, dbmp); + gdbm_close(dbmp->di_dbm); + dbmp->di_dbm = 0; + + return Qnil; +} + +static VALUE +fgdbm_closed(obj) + VALUE obj; +{ + struct dbmdata *dbmp; + + Data_Get_Struct(obj, struct dbmdata, dbmp); + if (dbmp == 0) + return Qtrue; + if (dbmp->di_dbm == 0) + return Qtrue; + + return Qfalse; +} + +static VALUE fgdbm_s_alloc _((VALUE)); + +static VALUE +fgdbm_s_alloc(klass) + VALUE klass; +{ + return Data_Wrap_Struct(klass, 0, free_dbm, 0); +} + +static VALUE +fgdbm_initialize(argc, argv, obj) + int argc; + VALUE *argv; + VALUE obj; +{ + VALUE file, vmode, vflags; + GDBM_FILE dbm; + struct dbmdata *dbmp; + int mode, flags = 0; + + if (rb_scan_args(argc, argv, "12", &file, &vmode, &vflags) == 1) { + mode = 0666; /* default value */ + } + else if (NIL_P(vmode)) { + mode = -1; /* return nil if DB not exist */ + } + else { + mode = NUM2INT(vmode); + } + + if (!NIL_P(vflags)) + flags = NUM2INT(vflags); + + SafeStringValue(file); + + if (flags & RUBY_GDBM_RW_BIT) { + flags &= ~RUBY_GDBM_RW_BIT; + dbm = gdbm_open(RSTRING(file)->ptr, MY_BLOCK_SIZE, + flags, mode, MY_FATAL_FUNC); + } + else { + dbm = 0; + if (mode >= 0) + dbm = gdbm_open(RSTRING(file)->ptr, MY_BLOCK_SIZE, + GDBM_WRCREAT|flags, mode, MY_FATAL_FUNC); + if (!dbm) + dbm = gdbm_open(RSTRING(file)->ptr, MY_BLOCK_SIZE, + GDBM_WRITER|flags, 0, MY_FATAL_FUNC); + if (!dbm) + dbm = gdbm_open(RSTRING(file)->ptr, MY_BLOCK_SIZE, + GDBM_READER|flags, 0, MY_FATAL_FUNC); + } + + if (!dbm) { + if (mode == -1) return Qnil; + + if (gdbm_errno == GDBM_FILE_OPEN_ERROR || + gdbm_errno == GDBM_CANT_BE_READER || + gdbm_errno == GDBM_CANT_BE_WRITER) + rb_sys_fail(RSTRING(file)->ptr); + else + rb_raise(rb_eGDBMError, "%s", gdbm_strerror(gdbm_errno)); + } + + dbmp = ALLOC(struct dbmdata); + free_dbm(DATA_PTR(obj)); + DATA_PTR(obj) = dbmp; + dbmp->di_dbm = dbm; + dbmp->di_size = -1; + + return obj; +} + +static VALUE +fgdbm_s_open(argc, argv, klass) + int argc; + VALUE *argv; + VALUE klass; +{ + VALUE obj = Data_Wrap_Struct(klass, 0, free_dbm, 0); + + if (NIL_P(fgdbm_initialize(argc, argv, obj))) { + return Qnil; + } + + if (rb_block_given_p()) { + return rb_ensure(rb_yield, obj, fgdbm_close, obj); + } + + return obj; +} + +static VALUE +rb_gdbm_fetch(dbm, key) + GDBM_FILE dbm; + datum key; +{ + datum val; + VALUE str; + + val = gdbm_fetch(dbm, key); + if (val.dptr == 0) + return Qnil; + + str = rb_obj_alloc(rb_cString); + RSTRING(str)->len = val.dsize; + RSTRING(str)->aux.capa = val.dsize; + RSTRING(str)->ptr = REALLOC_N(val.dptr,char,val.dsize+1); + RSTRING(str)->ptr[val.dsize] = '\0'; + + OBJ_TAINT(str); + return (VALUE)str; +} + +static VALUE +rb_gdbm_fetch2(dbm, keystr) + GDBM_FILE dbm; + VALUE keystr; +{ + datum key; + + StringValue(keystr); + key.dptr = RSTRING(keystr)->ptr; + key.dsize = RSTRING(keystr)->len; + + return rb_gdbm_fetch(dbm, key); +} + +static VALUE +rb_gdbm_fetch3(obj, keystr) + VALUE obj, keystr; +{ + struct dbmdata *dbmp; + GDBM_FILE dbm; + + GetDBM2(obj, dbmp, dbm); + return rb_gdbm_fetch2(dbm, keystr); +} + +static VALUE +rb_gdbm_firstkey(dbm) + GDBM_FILE dbm; +{ + datum key; + VALUE str; + + key = gdbm_firstkey(dbm); + if (key.dptr == 0) + return Qnil; + + str = rb_obj_alloc(rb_cString); + RSTRING(str)->len = key.dsize; + RSTRING(str)->aux.capa = key.dsize; + RSTRING(str)->ptr = REALLOC_N(key.dptr,char,key.dsize+1); + RSTRING(str)->ptr[RSTRING(str)->len] = '\0'; + + OBJ_TAINT(str); + return str; +} + +static VALUE +rb_gdbm_nextkey(dbm, keystr) + GDBM_FILE dbm; + VALUE keystr; +{ + datum key, key2; + VALUE str; + + key.dptr = RSTRING(keystr)->ptr; + key.dsize = RSTRING(keystr)->len; + key2 = gdbm_nextkey(dbm, key); + if (key2.dptr == 0) + return Qnil; + + str = rb_obj_alloc(rb_cString); + RSTRING(str)->len = key2.dsize; + RSTRING(str)->aux.capa = key2.dsize; + RSTRING(str)->ptr = REALLOC_N(key2.dptr,char,key2.dsize+1); + RSTRING(str)->ptr[RSTRING(str)->len] = '\0'; + + OBJ_TAINT(str); + return str; +} + +static VALUE +fgdbm_fetch(obj, keystr, ifnone) + VALUE obj, keystr, ifnone; +{ + VALUE valstr; + + valstr = rb_gdbm_fetch3(obj, keystr); + if (NIL_P(valstr)) { + if (ifnone == Qnil && rb_block_given_p()) + return rb_yield(keystr); + return ifnone; + } + return valstr; +} + +static VALUE +fgdbm_aref(obj, keystr) + VALUE obj, keystr; +{ + return rb_gdbm_fetch3(obj, keystr); +} + +static VALUE +fgdbm_fetch_m(argc, argv, obj) + int argc; + VALUE *argv; + VALUE obj; +{ + VALUE keystr, valstr, ifnone; + + rb_scan_args(argc, argv, "11", &keystr, &ifnone); + valstr = fgdbm_fetch(obj, keystr, ifnone); + if (argc == 1 && !rb_block_given_p() && NIL_P(valstr)) + rb_raise(rb_eIndexError, "key not found"); + + return valstr; +} + +static VALUE +fgdbm_index(obj, valstr) + VALUE obj, valstr; +{ + struct dbmdata *dbmp; + GDBM_FILE dbm; + VALUE keystr, valstr2; + + StringValue(valstr); + GetDBM2(obj, dbmp, dbm); + for (keystr = rb_gdbm_firstkey(dbm); RTEST(keystr); + keystr = rb_gdbm_nextkey(dbm, keystr)) { + + valstr2 = rb_gdbm_fetch2(dbm, keystr); + if (!NIL_P(valstr2) && + RSTRING(valstr)->len == RSTRING(valstr2)->len && + memcmp(RSTRING(valstr)->ptr, RSTRING(valstr2)->ptr, + RSTRING(valstr)->len) == 0) { + return keystr; + } + } + return Qnil; +} + +static VALUE +fgdbm_indexes(argc, argv, obj) + int argc; + VALUE *argv; + VALUE obj; +{ + VALUE new; + int i; + + new = rb_ary_new2(argc); + for (i=0; i<argc; i++) { + rb_ary_push(new, rb_gdbm_fetch3(obj, argv[i])); + } + + return new; +} + +static VALUE +fgdbm_select(argc, argv, obj) + int argc; + VALUE *argv; + VALUE obj; +{ + VALUE new = rb_ary_new2(argc); + int i; + + if (rb_block_given_p()) { + GDBM_FILE dbm; + struct dbmdata *dbmp; + VALUE keystr; + + if (argc > 0) { + rb_raise(rb_eArgError, "wrong number arguments(%d for 0)", argc); + } + GetDBM2(obj, dbmp, dbm); + for (keystr = rb_gdbm_firstkey(dbm); RTEST(keystr); + keystr = rb_gdbm_nextkey(dbm, keystr)) { + VALUE assoc = rb_assoc_new(keystr, rb_gdbm_fetch2(dbm, keystr)); + VALUE v = rb_yield(assoc); + + if (RTEST(v)) { + rb_ary_push(new, assoc); + } + GetDBM2(obj, dbmp, dbm); + } + } + else { + rb_warn("GDBM#select(index..) is deprecated; use GDBM#values_at"); + + for (i=0; i<argc; i++) { + rb_ary_push(new, rb_gdbm_fetch3(obj, argv[i])); + } + } + + return new; +} + +static VALUE +fgdbm_values_at(argc, argv, obj) + int argc; + VALUE *argv; + VALUE obj; +{ + VALUE new = rb_ary_new2(argc); + int i; + + for (i=0; i<argc; i++) { + rb_ary_push(new, rb_gdbm_fetch3(obj, argv[i])); + } + + return new; +} + +static void +rb_gdbm_modify(obj) + VALUE obj; +{ + rb_secure(4); + if (OBJ_FROZEN(obj)) rb_error_frozen("GDBM"); +} + +static VALUE +rb_gdbm_delete(obj, keystr) + VALUE obj, keystr; +{ + datum key; + struct dbmdata *dbmp; + GDBM_FILE dbm; + + rb_gdbm_modify(obj); + StringValue(keystr); + key.dptr = RSTRING(keystr)->ptr; + key.dsize = RSTRING(keystr)->len; + + GetDBM2(obj, dbmp, dbm); + if (!gdbm_exists(dbm, key)) { + return Qnil; + } + + if (gdbm_delete(dbm, key)) { + dbmp->di_size = -1; + rb_raise(rb_eGDBMError, "%s", gdbm_strerror(gdbm_errno)); + } + else if (dbmp->di_size >= 0) { + dbmp->di_size--; + } + return obj; +} + +static VALUE +fgdbm_delete(obj, keystr) + VALUE obj, keystr; +{ + VALUE valstr; + + valstr = fgdbm_fetch(obj, keystr, Qnil); + rb_gdbm_delete(obj, keystr); + return valstr; +} + +static VALUE +fgdbm_shift(obj) + VALUE obj; +{ + struct dbmdata *dbmp; + GDBM_FILE dbm; + VALUE keystr, valstr; + + rb_gdbm_modify(obj); + GetDBM2(obj, dbmp, dbm); + keystr = rb_gdbm_firstkey(dbm); + if (NIL_P(keystr)) return Qnil; + valstr = rb_gdbm_fetch2(dbm, keystr); + rb_gdbm_delete(obj, keystr); + + return rb_assoc_new(keystr, valstr); +} + +static VALUE +fgdbm_delete_if(obj) + VALUE obj; +{ + struct dbmdata *dbmp; + GDBM_FILE dbm; + VALUE keystr, valstr; + VALUE ret, ary = rb_ary_new(); + int i, status = 0, n; + + rb_gdbm_modify(obj); + GetDBM2(obj, dbmp, dbm); + n = dbmp->di_size; + dbmp->di_size = -1; + + for (keystr = rb_gdbm_firstkey(dbm); RTEST(keystr); + keystr = rb_gdbm_nextkey(dbm, keystr)) { + + valstr = rb_gdbm_fetch2(dbm, keystr); + ret = rb_protect(rb_yield, rb_assoc_new(keystr, valstr), &status); + if (status != 0) break; + if (RTEST(ret)) rb_ary_push(ary, keystr); + GetDBM2(obj, dbmp, dbm); + } + + for (i = 0; i < RARRAY(ary)->len; i++) + rb_gdbm_delete(obj, RARRAY(ary)->ptr[i]); + if (status) rb_jump_tag(status); + if (n > 0) dbmp->di_size = n - RARRAY(ary)->len; + + return obj; +} + +static VALUE +fgdbm_clear(obj) + VALUE obj; +{ + datum key, nextkey; + struct dbmdata *dbmp; + GDBM_FILE dbm; + + rb_gdbm_modify(obj); + GetDBM2(obj, dbmp, dbm); + dbmp->di_size = -1; + +#if 0 + while (key = gdbm_firstkey(dbm), key.dptr) { + if (gdbm_delete(dbm, key)) { + free(key.dptr); + rb_raise(rb_eGDBMError, "%s", gdbm_strerror(gdbm_errno)); + } + free(key.dptr); + } +#else + while (key = gdbm_firstkey(dbm), key.dptr) { + for (; key.dptr; key = nextkey) { + nextkey = gdbm_nextkey(dbm, key); + if (gdbm_delete(dbm, key)) { + free(key.dptr); + if (nextkey.dptr) free(nextkey.dptr); + rb_raise(rb_eGDBMError, "%s", gdbm_strerror(gdbm_errno)); + } + free(key.dptr); + } + } +#endif + dbmp->di_size = 0; + + return obj; +} + +static VALUE +fgdbm_invert(obj) + VALUE obj; +{ + struct dbmdata *dbmp; + GDBM_FILE dbm; + VALUE keystr, valstr; + VALUE hash = rb_hash_new(); + + GetDBM2(obj, dbmp, dbm); + for (keystr = rb_gdbm_firstkey(dbm); RTEST(keystr); + keystr = rb_gdbm_nextkey(dbm, keystr)) { + valstr = rb_gdbm_fetch2(dbm, keystr); + + rb_hash_aset(hash, valstr, keystr); + } + return hash; +} + +static VALUE each_pair _((VALUE)); + +static VALUE +each_pair(obj) + VALUE obj; +{ + return rb_funcall(obj, rb_intern("each_pair"), 0, 0); +} + +static VALUE fgdbm_store _((VALUE,VALUE,VALUE)); + +static VALUE +update_i(pair, dbm) + VALUE pair, dbm; +{ + Check_Type(pair, T_ARRAY); + if (RARRAY(pair)->len < 2) { + rb_raise(rb_eArgError, "pair must be [key, value]"); + } + fgdbm_store(dbm, RARRAY(pair)->ptr[0], RARRAY(pair)->ptr[1]); + return Qnil; +} + +static VALUE +fgdbm_update(obj, other) + VALUE obj, other; +{ + rb_iterate(each_pair, other, update_i, obj); + return obj; +} + +static VALUE +fgdbm_replace(obj, other) + VALUE obj, other; +{ + fgdbm_clear(obj); + rb_iterate(each_pair, other, update_i, obj); + return obj; +} + +static VALUE +fgdbm_store(obj, keystr, valstr) + VALUE obj, keystr, valstr; +{ + datum key, val; + struct dbmdata *dbmp; + GDBM_FILE dbm; + + rb_gdbm_modify(obj); + StringValue(keystr); + StringValue(valstr); + + key.dptr = RSTRING(keystr)->ptr; + key.dsize = RSTRING(keystr)->len; + + val.dptr = RSTRING(valstr)->ptr; + val.dsize = RSTRING(valstr)->len; + + GetDBM2(obj, dbmp, dbm); + dbmp->di_size = -1; + if (gdbm_store(dbm, key, val, GDBM_REPLACE)) { + if (errno == EPERM) rb_sys_fail(0); + rb_raise(rb_eGDBMError, "%s", gdbm_strerror(gdbm_errno)); + } + + return valstr; +} + +static VALUE +fgdbm_length(obj) + VALUE obj; +{ + datum key, nextkey; + struct dbmdata *dbmp; + GDBM_FILE dbm; + int i = 0; + + GetDBM2(obj, dbmp, dbm); + if (dbmp->di_size > 0) return INT2FIX(dbmp->di_size); + + for (key = gdbm_firstkey(dbm); key.dptr; key = nextkey) { + nextkey = gdbm_nextkey(dbm, key); + free(key.dptr); + i++; + } + dbmp->di_size = i; + + return INT2FIX(i); +} + +static VALUE +fgdbm_empty_p(obj) + VALUE obj; +{ + datum key; + struct dbmdata *dbmp; + GDBM_FILE dbm; + + GetDBM(obj, dbmp); + if (dbmp->di_size < 0) { + dbm = dbmp->di_dbm; + + key = gdbm_firstkey(dbm); + if (key.dptr) { + free(key.dptr); + return Qfalse; + } + return Qtrue; + } + + if (dbmp->di_size == 0) return Qtrue; + return Qfalse; +} + +static VALUE +fgdbm_each_value(obj) + VALUE obj; +{ + struct dbmdata *dbmp; + GDBM_FILE dbm; + VALUE keystr; + + GetDBM2(obj, dbmp, dbm); + for (keystr = rb_gdbm_firstkey(dbm); RTEST(keystr); + keystr = rb_gdbm_nextkey(dbm, keystr)) { + + rb_yield(rb_gdbm_fetch2(dbm, keystr)); + GetDBM2(obj, dbmp, dbm); + } + return obj; +} + +static VALUE +fgdbm_each_key(obj) + VALUE obj; +{ + struct dbmdata *dbmp; + GDBM_FILE dbm; + VALUE keystr; + + GetDBM2(obj, dbmp, dbm); + for (keystr = rb_gdbm_firstkey(dbm); RTEST(keystr); + keystr = rb_gdbm_nextkey(dbm, keystr)) { + + rb_yield(keystr); + GetDBM2(obj, dbmp, dbm); + } + return obj; +} + +static VALUE +fgdbm_each_pair(obj) + VALUE obj; +{ + GDBM_FILE dbm; + struct dbmdata *dbmp; + VALUE keystr; + + GetDBM2(obj, dbmp, dbm); + for (keystr = rb_gdbm_firstkey(dbm); RTEST(keystr); + keystr = rb_gdbm_nextkey(dbm, keystr)) { + + rb_yield(rb_assoc_new(keystr, rb_gdbm_fetch2(dbm, keystr))); + GetDBM2(obj, dbmp, dbm); + } + + return obj; +} + +static VALUE +fgdbm_keys(obj) + VALUE obj; +{ + struct dbmdata *dbmp; + GDBM_FILE dbm; + VALUE keystr, ary; + + GetDBM2(obj, dbmp, dbm); + ary = rb_ary_new(); + for (keystr = rb_gdbm_firstkey(dbm); RTEST(keystr); + keystr = rb_gdbm_nextkey(dbm, keystr)) { + + rb_ary_push(ary, keystr); + } + + return ary; +} + +static VALUE +fgdbm_values(obj) + VALUE obj; +{ + datum key, nextkey; + struct dbmdata *dbmp; + GDBM_FILE dbm; + VALUE valstr, ary; + + GetDBM2(obj, dbmp, dbm); + ary = rb_ary_new(); + for (key = gdbm_firstkey(dbm); key.dptr; key = nextkey) { + nextkey = gdbm_nextkey(dbm, key); + valstr = rb_gdbm_fetch(dbm, key); + free(key.dptr); + rb_ary_push(ary, valstr); + } + + return ary; +} + +static VALUE +fgdbm_has_key(obj, keystr) + VALUE obj, keystr; +{ + datum key; + struct dbmdata *dbmp; + GDBM_FILE dbm; + + StringValue(keystr); + key.dptr = RSTRING(keystr)->ptr; + key.dsize = RSTRING(keystr)->len; + + GetDBM2(obj, dbmp, dbm); + if (gdbm_exists(dbm, key)) + return Qtrue; + return Qfalse; +} + +static VALUE +fgdbm_has_value(obj, valstr) + VALUE obj, valstr; +{ + struct dbmdata *dbmp; + GDBM_FILE dbm; + VALUE keystr, valstr2; + + StringValue(valstr); + GetDBM2(obj, dbmp, dbm); + for (keystr = rb_gdbm_firstkey(dbm); RTEST(keystr); + keystr = rb_gdbm_nextkey(dbm, keystr)) { + + valstr2 = rb_gdbm_fetch2(dbm, keystr); + + if (!NIL_P(valstr2) && + RSTRING(valstr)->len == RSTRING(valstr2)->len && + memcmp(RSTRING(valstr)->ptr, RSTRING(valstr2)->ptr, + RSTRING(valstr)->len) == 0) { + return Qtrue; + } + } + return Qfalse; +} + +static VALUE +fgdbm_to_a(obj) + VALUE obj; +{ + struct dbmdata *dbmp; + GDBM_FILE dbm; + VALUE keystr, ary; + + GetDBM2(obj, dbmp, dbm); + ary = rb_ary_new(); + for (keystr = rb_gdbm_firstkey(dbm); RTEST(keystr); + keystr = rb_gdbm_nextkey(dbm, keystr)) { + + rb_ary_push(ary, rb_assoc_new(keystr, rb_gdbm_fetch2(dbm, keystr))); + } + + return ary; +} + +static VALUE +fgdbm_reorganize(obj) + VALUE obj; +{ + struct dbmdata *dbmp; + GDBM_FILE dbm; + + rb_gdbm_modify(obj); + GetDBM2(obj, dbmp, dbm); + gdbm_reorganize(dbm); + return obj; +} + +static VALUE +fgdbm_sync(obj) + VALUE obj; +{ + struct dbmdata *dbmp; + GDBM_FILE dbm; + + rb_gdbm_modify(obj); + GetDBM2(obj, dbmp, dbm); + gdbm_sync(dbm); + return obj; +} + +static VALUE +fgdbm_set_cachesize(obj, val) + VALUE obj, val; +{ + struct dbmdata *dbmp; + GDBM_FILE dbm; + int optval; + + GetDBM2(obj, dbmp, dbm); + optval = FIX2INT(val); + if (gdbm_setopt(dbm, GDBM_CACHESIZE, &optval, sizeof(optval)) == -1) { + rb_raise(rb_eGDBMError, "%s", gdbm_strerror(gdbm_errno)); + } + return val; +} + +static VALUE +fgdbm_set_fastmode(obj, val) + VALUE obj, val; +{ + struct dbmdata *dbmp; + GDBM_FILE dbm; + int optval; + + GetDBM2(obj, dbmp, dbm); + optval = 0; + if (RTEST(val)) + optval = 1; + + if (gdbm_setopt(dbm, GDBM_FASTMODE, &optval, sizeof(optval)) == -1) { + rb_raise(rb_eGDBMError, "%s", gdbm_strerror(gdbm_errno)); + } + return val; +} + +static VALUE +fgdbm_set_syncmode(obj, val) + VALUE obj, val; +{ +#if !defined(GDBM_SYNCMODE) + fgdbm_set_fastmode(obj, RTEST(val) ? Qfalse : Qtrue); + return val; +#else + struct dbmdata *dbmp; + GDBM_FILE dbm; + int optval; + + GetDBM2(obj, dbmp, dbm); + optval = 0; + if (RTEST(val)) + optval = 1; + + if (gdbm_setopt(dbm, GDBM_FASTMODE, &optval, sizeof(optval)) == -1) { + rb_raise(rb_eGDBMError, "%s", gdbm_strerror(gdbm_errno)); + } + return val; +#endif +} + +static VALUE +fgdbm_to_hash(obj) + VALUE obj; +{ + struct dbmdata *dbmp; + GDBM_FILE dbm; + VALUE keystr, hash; + + GetDBM2(obj, dbmp, dbm); + hash = rb_hash_new(); + for (keystr = rb_gdbm_firstkey(dbm); RTEST(keystr); + keystr = rb_gdbm_nextkey(dbm, keystr)) { + + rb_hash_aset(hash, keystr, rb_gdbm_fetch2(dbm, keystr)); + } + + return hash; +} + +static VALUE +fgdbm_reject(obj) + VALUE obj; +{ + return rb_hash_delete_if(fgdbm_to_hash(obj)); +} + +void +Init_gdbm() +{ + rb_cGDBM = rb_define_class("GDBM", rb_cObject); + rb_eGDBMError = rb_define_class("GDBMError", rb_eStandardError); + rb_eGDBMFatalError = rb_define_class("GDBMFatalError", rb_eException); + rb_include_module(rb_cGDBM, rb_mEnumerable); + + rb_define_alloc_func(rb_cGDBM, fgdbm_s_alloc); + rb_define_singleton_method(rb_cGDBM, "open", fgdbm_s_open, -1); + + rb_define_method(rb_cGDBM, "initialize", fgdbm_initialize, -1); + rb_define_method(rb_cGDBM, "close", fgdbm_close, 0); + rb_define_method(rb_cGDBM, "closed?", fgdbm_closed, 0); + rb_define_method(rb_cGDBM, "[]", fgdbm_aref, 1); + rb_define_method(rb_cGDBM, "fetch", fgdbm_fetch_m, -1); + rb_define_method(rb_cGDBM, "[]=", fgdbm_store, 2); + rb_define_method(rb_cGDBM, "store", fgdbm_store, 2); + rb_define_method(rb_cGDBM, "index", fgdbm_index, 1); + rb_define_method(rb_cGDBM, "indexes", fgdbm_indexes, -1); + rb_define_method(rb_cGDBM, "indices", fgdbm_indexes, -1); + rb_define_method(rb_cGDBM, "select", fgdbm_select, -1); + rb_define_method(rb_cGDBM, "values_at", fgdbm_values_at, -1); + rb_define_method(rb_cGDBM, "length", fgdbm_length, 0); + rb_define_method(rb_cGDBM, "size", fgdbm_length, 0); + rb_define_method(rb_cGDBM, "empty?", fgdbm_empty_p, 0); + rb_define_method(rb_cGDBM, "each", fgdbm_each_pair, 0); + rb_define_method(rb_cGDBM, "each_value", fgdbm_each_value, 0); + rb_define_method(rb_cGDBM, "each_key", fgdbm_each_key, 0); + rb_define_method(rb_cGDBM, "each_pair", fgdbm_each_pair, 0); + rb_define_method(rb_cGDBM, "keys", fgdbm_keys, 0); + rb_define_method(rb_cGDBM, "values", fgdbm_values, 0); + rb_define_method(rb_cGDBM, "shift", fgdbm_shift, 0); + rb_define_method(rb_cGDBM, "delete", fgdbm_delete, 1); + rb_define_method(rb_cGDBM, "delete_if", fgdbm_delete_if, 0); + rb_define_method(rb_cGDBM, "reject!", fgdbm_delete_if, 0); + rb_define_method(rb_cGDBM, "reject", fgdbm_reject, 0); + rb_define_method(rb_cGDBM, "clear", fgdbm_clear, 0); + rb_define_method(rb_cGDBM,"invert", fgdbm_invert, 0); + rb_define_method(rb_cGDBM,"update", fgdbm_update, 1); + rb_define_method(rb_cGDBM,"replace", fgdbm_replace, 1); + rb_define_method(rb_cGDBM,"reorganize", fgdbm_reorganize, 0); + rb_define_method(rb_cGDBM,"sync", fgdbm_sync, 0); + /* rb_define_method(rb_cGDBM,"setopt", fgdbm_setopt, 2); */ + rb_define_method(rb_cGDBM,"cachesize=", fgdbm_set_cachesize, 1); + rb_define_method(rb_cGDBM,"fastmode=", fgdbm_set_fastmode, 1); + rb_define_method(rb_cGDBM,"syncmode=", fgdbm_set_syncmode, 1); + + rb_define_method(rb_cGDBM, "include?", fgdbm_has_key, 1); + rb_define_method(rb_cGDBM, "has_key?", fgdbm_has_key, 1); + rb_define_method(rb_cGDBM, "member?", fgdbm_has_key, 1); + rb_define_method(rb_cGDBM, "has_value?", fgdbm_has_value, 1); + rb_define_method(rb_cGDBM, "key?", fgdbm_has_key, 1); + rb_define_method(rb_cGDBM, "value?", fgdbm_has_value, 1); + + rb_define_method(rb_cGDBM, "to_a", fgdbm_to_a, 0); + rb_define_method(rb_cGDBM, "to_hash", fgdbm_to_hash, 0); + + /* flags for gdbm_open() */ + rb_define_const(rb_cGDBM, "READER", INT2FIX(GDBM_READER|RUBY_GDBM_RW_BIT)); + rb_define_const(rb_cGDBM, "WRITER", INT2FIX(GDBM_WRITER|RUBY_GDBM_RW_BIT)); + rb_define_const(rb_cGDBM, "WRCREAT", INT2FIX(GDBM_WRCREAT|RUBY_GDBM_RW_BIT)); + rb_define_const(rb_cGDBM, "NEWDB", INT2FIX(GDBM_NEWDB|RUBY_GDBM_RW_BIT)); + + rb_define_const(rb_cGDBM, "FAST", INT2FIX(GDBM_FAST)); + /* this flag is obsolete in gdbm 1.8. + On gdbm 1.8, fast mode is default behavior. */ + + /* gdbm version 1.8 specific */ +#if defined(GDBM_SYNC) + rb_define_const(rb_cGDBM, "SYNC", INT2FIX(GDBM_SYNC)); +#endif +#if defined(GDBM_NOLOCK) + rb_define_const(rb_cGDBM, "NOLOCK", INT2FIX(GDBM_NOLOCK)); +#endif + rb_define_const(rb_cGDBM, "VERSION", rb_str_new2(gdbm_version)); +} |