From c09a226803d177f2ab3426ec2c72a3186d789010 Mon Sep 17 00:00:00 2001 From: matz Date: Fri, 7 May 1999 08:23:54 +0000 Subject: gdbm module git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_1_3@459 b2dd03c8-39d4-4d8f-98ff-823fe69b080e --- ext/gdbm/MANIFEST | 5 + ext/gdbm/README | 1 + ext/gdbm/depend | 1 + ext/gdbm/extconf.rb | 7 + ext/gdbm/gdbm.c | 604 ++++++++++++++++++++++++++++++++++++++++++++++++++++ 5 files changed, 618 insertions(+) create mode 100644 ext/gdbm/MANIFEST create mode 100644 ext/gdbm/README create mode 100644 ext/gdbm/depend create mode 100644 ext/gdbm/extconf.rb create mode 100644 ext/gdbm/gdbm.c (limited to 'ext/gdbm') diff --git a/ext/gdbm/MANIFEST b/ext/gdbm/MANIFEST new file mode 100644 index 0000000000..c0f7b2cb7c --- /dev/null +++ b/ext/gdbm/MANIFEST @@ -0,0 +1,5 @@ +MANIFEST +README +depend +extconf.rb +gdbm.c diff --git a/ext/gdbm/README b/ext/gdbm/README new file mode 100644 index 0000000000..d25cc9240a --- /dev/null +++ b/ext/gdbm/README @@ -0,0 +1 @@ +gdbm ext-library for Ruby 1.3 diff --git a/ext/gdbm/depend b/ext/gdbm/depend new file mode 100644 index 0000000000..9e157bc23f --- /dev/null +++ b/ext/gdbm/depend @@ -0,0 +1 @@ +gdbm.o: gdbm.c $(hdrdir)/ruby.h $(hdrdir)/config.h $(hdrdir)/defines.h diff --git a/ext/gdbm/extconf.rb b/ext/gdbm/extconf.rb new file mode 100644 index 0000000000..3c36f29f14 --- /dev/null +++ b/ext/gdbm/extconf.rb @@ -0,0 +1,7 @@ +require 'mkmf' +$LDFLAGS = "-L/usr/local/lib" +have_library("gdbm", "gdbm_open") +have_header("gdbm.h") +if have_func("gdbm_open") + create_makefile("gdbm") +end diff --git a/ext/gdbm/gdbm.c b/ext/gdbm/gdbm.c new file mode 100644 index 0000000000..a9c2c64ef6 --- /dev/null +++ b/ext/gdbm/gdbm.c @@ -0,0 +1,604 @@ +/************************************************ + + gdbm.c - + + $Author$ + $Date$ + modified at: Mon Jan 24 15:59:52 JST 1994 + +************************************************/ + +#include "ruby.h" + +#include +#include +#include +#ifdef USE_CWGUSI +# include +#endif + +VALUE cGDBM; + +#define MY_BLOCK_SIZE (2048) +#define MY_FATAL_FUNC (0) + +struct dbmdata { + int di_size; + GDBM_FILE di_dbm; +}; + +static void +closed_dbm() +{ + rb_raise(rb_eRuntimeError, "closed GDBM file"); +} + +#define GetDBM(obj, dbmp) {\ + Data_Get_Struct(obj, struct dbmdata, dbmp);\ + if (dbmp->di_dbm == 0) closed_dbm();\ +} + +static void +free_dbm(dbmp) + struct dbmdata *dbmp; +{ + if (dbmp->di_dbm) gdbm_close(dbmp->di_dbm); + free(dbmp); +} + +static VALUE +fgdbm_s_open(argc, argv, klass) + int argc; + VALUE *argv; + VALUE klass; +{ + VALUE file, vmode; + GDBM_FILE dbm; + struct dbmdata *dbmp; + int mode; + VALUE obj; + + if (rb_scan_args(argc, argv, "11", &file, &vmode) == 1) { + mode = 0666; /* default value */ + } + else if (NIL_P(vmode)) { + mode = -1; /* return nil if DB not exist */ + } + else { + mode = NUM2INT(vmode); + } + Check_SafeStr(file); + + dbm = 0; + if (mode >= 0) + dbm = gdbm_open(RSTRING(file)->ptr, MY_BLOCK_SIZE, + O_RDWR|O_CREAT, mode, MY_FATAL_FUNC); + if (!dbm) + dbm = gdbm_open(RSTRING(file)->ptr, MY_BLOCK_SIZE, + O_RDWR, mode, MY_FATAL_FUNC); + if (!dbm) + dbm = gdbm_open(RSTRING(file)->ptr, MY_BLOCK_SIZE, + O_RDONLY, mode, MY_FATAL_FUNC); + + if (!dbm) { + if (mode == -1) return Qnil; + rb_sys_fail(RSTRING(file)->ptr); + } + + obj = Data_Make_Struct(klass,struct dbmdata,0,free_dbm,dbmp); + dbmp->di_dbm = dbm; + dbmp->di_size = -1; + rb_obj_call_init(obj, argc, argv); + + return obj; +} + +static VALUE +fgdbm_close(obj) + VALUE obj; +{ + struct dbmdata *dbmp; + + Data_Get_Struct(obj, struct dbmdata, dbmp); + if (dbmp->di_dbm == 0) closed_dbm(); + gdbm_close(dbmp->di_dbm); + dbmp->di_dbm = 0; + + return Qnil; +} + +static VALUE +fgdbm_fetch(obj, keystr) + VALUE obj, keystr; +{ + datum key, value; + struct dbmdata *dbmp; + GDBM_FILE dbm; + + Check_Type(keystr, T_STRING); + key.dptr = RSTRING(keystr)->ptr; + key.dsize = RSTRING(keystr)->len; + + GetDBM(obj, dbmp); + dbm = dbmp->di_dbm; + value = gdbm_fetch(dbm, key); + if (value.dptr == 0) { + return Qnil; + } + return rb_tainted_str_new(value.dptr, value.dsize); +} + +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; iptr; + key.dsize = RSTRING(keystr)->len; + + GetDBM(obj, dbmp); + dbm = dbmp->di_dbm; + + value = gdbm_fetch(dbm, key); + if (value.dptr == 0) { + if (rb_iterator_p()) rb_yield(keystr); + return Qnil; + } + + if (gdbm_delete(dbm, key)) { + dbmp->di_size = -1; + rb_raise(rb_eRuntimeError, "dbm_delete failed"); + } + else if (dbmp->di_size >= 0) { + dbmp->di_size--; + } + return obj; +} + +static VALUE +fgdbm_shift(obj) + VALUE obj; +{ + datum key, val; + struct dbmdata *dbmp; + GDBM_FILE dbm; + VALUE keystr, valstr; + + rb_secure(4); + GetDBM(obj, dbmp); + dbm = dbmp->di_dbm; + + key = gdbm_firstkey(dbm); + if (!key.dptr) return Qnil; + val = gdbm_fetch(dbm, key); + gdbm_delete(dbm, key); + + keystr = rb_tainted_str_new(key.dptr, key.dsize); + valstr = rb_tainted_str_new(val.dptr, val.dsize); + return rb_assoc_new(keystr, valstr); +} + +static VALUE +fgdbm_delete_if(obj) + VALUE obj; +{ + datum key, val; + struct dbmdata *dbmp; + GDBM_FILE dbm; + VALUE keystr, valstr; + + rb_secure(4); + GetDBM(obj, dbmp); + dbm = dbmp->di_dbm; + for (key = gdbm_firstkey(dbm); key.dptr; key = gdbm_nextkey(dbm, key)) { + val = gdbm_fetch(dbm, key); + keystr = rb_tainted_str_new(key.dptr, key.dsize); + valstr = rb_tainted_str_new(val.dptr, val.dsize); + if (RTEST(rb_yield(rb_assoc_new(keystr, valstr)))) { + if (gdbm_delete(dbm, key)) { + rb_raise(rb_eRuntimeError, "dbm_delete failed"); + } + } + } + return obj; +} + +static VALUE +fgdbm_clear(obj) + VALUE obj; +{ + datum key, nextkey; + struct dbmdata *dbmp; + GDBM_FILE dbm; + + rb_secure(4); + GetDBM(obj, dbmp); + dbm = dbmp->di_dbm; + dbmp->di_size = -1; + for (key = gdbm_firstkey(dbm); key.dptr; key = nextkey) { + nextkey = gdbm_nextkey(dbm, key); + if (gdbm_delete(dbm, key)) { + rb_raise(rb_eRuntimeError, "dbm_delete failed"); + } + } + return obj; +} + +static VALUE +fgdbm_invert(obj) + VALUE obj; +{ + datum key, val; + struct dbmdata *dbmp; + GDBM_FILE dbm; + VALUE keystr, valstr; + VALUE hash = rb_hash_new(); + + GetDBM(obj, dbmp); + dbm = dbmp->di_dbm; + for (key = gdbm_firstkey(dbm); key.dptr; key = gdbm_nextkey(dbm, key)) { + val = gdbm_fetch(dbm, key); + keystr = rb_tainted_str_new(key.dptr, key.dsize); + valstr = rb_tainted_str_new(val.dptr, val.dsize); + rb_hash_aset(hash, valstr, keystr); + } + return obj; +} + +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; + + if (valstr == Qnil) { + fgdbm_delete(obj, keystr); + return Qnil; + } + + rb_secure(4); + keystr = rb_obj_as_string(keystr); + + key.dptr = RSTRING(keystr)->ptr; + key.dsize = RSTRING(keystr)->len; + + if (NIL_P(valstr)) return fgdbm_delete(obj, keystr); + + valstr = rb_obj_as_string(valstr); + val.dptr = RSTRING(valstr)->ptr; + val.dsize = RSTRING(valstr)->len; + + Data_Get_Struct(obj, struct dbmdata, dbmp); + dbmp->di_size = -1; + dbm = dbmp->di_dbm; + if (gdbm_store(dbm, key, val, GDBM_REPLACE)) { +#ifdef HAVE_DBM_CLAERERR + gdbm_clearerr(dbm); +#endif + if (errno == EPERM) rb_sys_fail(0); + rb_raise(rb_eRuntimeError, "dbm_store failed"); + } + + return valstr; +} + +static VALUE +fgdbm_length(obj) + VALUE obj; +{ + datum key; + struct dbmdata *dbmp; + GDBM_FILE dbm; + int i = 0; + + Data_Get_Struct(obj, struct dbmdata, dbmp); + if (dbmp->di_size > 0) return INT2FIX(dbmp->di_size); + dbm = dbmp->di_dbm; + + for (key = gdbm_firstkey(dbm); key.dptr; key = gdbm_nextkey(dbm, key)) { + i++; + } + dbmp->di_size = i; + + return INT2FIX(i); +} + +static VALUE +fgdbm_empty_p(obj) + VALUE obj; +{ + datum key; + struct dbmdata *dbmp; + GDBM_FILE dbm; + int i = 0; + + Data_Get_Struct(obj, struct dbmdata, dbmp); + if (dbmp->di_size < 0) { + dbm = dbmp->di_dbm; + + for (key = gdbm_firstkey(dbm); key.dptr; key = gdbm_nextkey(dbm, key)) { + i++; + } + } + else { + i = dbmp->di_size; + } + if (i == 0) return Qtrue; + return Qfalse; +} + +static VALUE +fgdbm_each_value(obj) + VALUE obj; +{ + datum key, val; + struct dbmdata *dbmp; + GDBM_FILE dbm; + + GetDBM(obj, dbmp); + dbm = dbmp->di_dbm; + for (key = gdbm_firstkey(dbm); key.dptr; key = gdbm_nextkey(dbm, key)) { + val = gdbm_fetch(dbm, key); + rb_yield(rb_tainted_str_new(val.dptr, val.dsize)); + } + return obj; +} + +static VALUE +fgdbm_each_key(obj) + VALUE obj; +{ + datum key; + struct dbmdata *dbmp; + GDBM_FILE dbm; + + GetDBM(obj, dbmp); + dbm = dbmp->di_dbm; + for (key = gdbm_firstkey(dbm); key.dptr; key = gdbm_nextkey(dbm, key)) { + rb_yield(rb_tainted_str_new(key.dptr, key.dsize)); + } + return obj; +} + +static VALUE +fgdbm_each_pair(obj) + VALUE obj; +{ + datum key, val; + GDBM_FILE dbm; + struct dbmdata *dbmp; + VALUE keystr, valstr; + + GetDBM(obj, dbmp); + dbm = dbmp->di_dbm; + + for (key = gdbm_firstkey(dbm); key.dptr; key = gdbm_nextkey(dbm, key)) { + val = gdbm_fetch(dbm, key); + keystr = rb_tainted_str_new(key.dptr, key.dsize); + valstr = rb_tainted_str_new(val.dptr, val.dsize); + rb_yield(rb_assoc_new(keystr, valstr)); + } + + return obj; +} + +static VALUE +fgdbm_keys(obj) + VALUE obj; +{ + datum key; + struct dbmdata *dbmp; + GDBM_FILE dbm; + VALUE ary; + + GetDBM(obj, dbmp); + dbm = dbmp->di_dbm; + + ary = rb_ary_new(); + for (key = gdbm_firstkey(dbm); key.dptr; key = gdbm_nextkey(dbm, key)) { + rb_ary_push(ary, rb_tainted_str_new(key.dptr, key.dsize)); + } + + return ary; +} + +static VALUE +fgdbm_values(obj) + VALUE obj; +{ + datum key, val; + struct dbmdata *dbmp; + GDBM_FILE dbm; + VALUE ary; + + GetDBM(obj, dbmp); + dbm = dbmp->di_dbm; + + ary = rb_ary_new(); + for (key = gdbm_firstkey(dbm); key.dptr; key = gdbm_nextkey(dbm, key)) { + val = gdbm_fetch(dbm, key); + rb_ary_push(ary, rb_tainted_str_new(val.dptr, val.dsize)); + } + + return ary; +} + +static VALUE +fgdbm_has_key(obj, keystr) + VALUE obj, keystr; +{ + datum key, val; + struct dbmdata *dbmp; + GDBM_FILE dbm; + + Check_Type(keystr, T_STRING); + key.dptr = RSTRING(keystr)->ptr; + key.dsize = RSTRING(keystr)->len; + + GetDBM(obj, dbmp); + dbm = dbmp->di_dbm; + val = gdbm_fetch(dbm, key); + if (val.dptr) return Qtrue; + return Qfalse; +} + +static VALUE +fgdbm_has_value(obj, valstr) + VALUE obj, valstr; +{ + datum key, val; + struct dbmdata *dbmp; + GDBM_FILE dbm; + + Check_Type(valstr, T_STRING); + val.dptr = RSTRING(valstr)->ptr; + val.dsize = RSTRING(valstr)->len; + + GetDBM(obj, dbmp); + dbm = dbmp->di_dbm; + for (key = gdbm_firstkey(dbm); key.dptr; key = gdbm_nextkey(dbm, key)) { + val = gdbm_fetch(dbm, key); + if (val.dsize == RSTRING(valstr)->len && + memcmp(val.dptr, RSTRING(valstr)->ptr, val.dsize) == 0) + return Qtrue; + } + return Qfalse; +} + +static VALUE +fgdbm_to_a(obj) + VALUE obj; +{ + datum key, val; + struct dbmdata *dbmp; + GDBM_FILE dbm; + VALUE ary; + + GetDBM(obj, dbmp); + dbm = dbmp->di_dbm; + + ary = rb_ary_new(); + for (key = gdbm_firstkey(dbm); key.dptr; key = gdbm_nextkey(dbm, key)) { + val = gdbm_fetch(dbm, key); + rb_ary_push(ary, rb_assoc_new(rb_tainted_str_new(key.dptr, key.dsize), + rb_tainted_str_new(val.dptr, val.dsize))); + } + + return ary; +} + +static VALUE +fgdbm_reorganize(obj) + VALUE obj; +{ + struct dbmdata *dbmp; + GDBM_FILE dbm; + + rb_secure(4); + GetDBM(obj, dbmp); + dbm = dbmp->di_dbm; + gdbm_reorganize(dbm); + return obj; +} + +void +Init_gdbm() +{ + cGDBM = rb_define_class("GDBM", rb_cObject); + rb_include_module(cGDBM, rb_mEnumerable); + + rb_define_singleton_method(cGDBM, "open", fgdbm_s_open, -1); + rb_define_singleton_method(cGDBM, "new", fgdbm_s_open, -1); + rb_define_method(cGDBM, "close", fgdbm_close, 0); + rb_define_method(cGDBM, "[]", fgdbm_fetch, 1); + rb_define_method(cGDBM, "[]=", fgdbm_store, 2); + rb_define_method(cGDBM, "indexes", fgdbm_indexes, -1); + rb_define_method(cGDBM, "indices", fgdbm_indexes, -1); + rb_define_method(cGDBM, "length", fgdbm_length, 0); + rb_define_alias(cGDBM, "size", "length"); + rb_define_method(cGDBM, "empty?", fgdbm_empty_p, 0); + rb_define_method(cGDBM, "each", fgdbm_each_pair, 0); + rb_define_method(cGDBM, "each_value", fgdbm_each_value, 0); + rb_define_method(cGDBM, "each_key", fgdbm_each_key, 0); + rb_define_method(cGDBM, "each_pair", fgdbm_each_pair, 0); + rb_define_method(cGDBM, "keys", fgdbm_keys, 0); + rb_define_method(cGDBM, "values", fgdbm_values, 0); + rb_define_method(cGDBM, "shift", fgdbm_shift, 1); + rb_define_method(cGDBM, "delete", fgdbm_delete, 1); + rb_define_method(cGDBM, "delete_if", fgdbm_delete_if, 0); + rb_define_method(cGDBM, "clear", fgdbm_clear, 0); + rb_define_method(cGDBM,"invert", fgdbm_invert, 0); + rb_define_method(cGDBM,"update", fgdbm_update, 1); + rb_define_method(cGDBM,"replace", fgdbm_replace, 1); + rb_define_method(cGDBM,"reorganize", fgdbm_reorganize, 0); + + rb_define_method(cGDBM, "include?", fgdbm_has_key, 1); + rb_define_method(cGDBM, "has_key?", fgdbm_has_key, 1); + rb_define_method(cGDBM, "has_value?", fgdbm_has_value, 1); + rb_define_method(cGDBM, "key?", fgdbm_has_key, 1); + rb_define_method(cGDBM, "value?", fgdbm_has_value, 1); + + rb_define_method(cGDBM, "to_a", fgdbm_to_a, 0); +} -- cgit v1.2.3