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0517b43c5b
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@9292 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
987 lines
21 KiB
C
987 lines
21 KiB
C
/************************************************
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gdbm.c -
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$Author$
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$Date$
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modified at: Mon Jan 24 15:59:52 JST 1994
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************************************************/
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#include "ruby.h"
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#include <gdbm.h>
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#include <fcntl.h>
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#include <errno.h>
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static VALUE rb_cGDBM, rb_eGDBMError, rb_eGDBMFatalError;
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#define RUBY_GDBM_RW_BIT 0x20000000
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#define MY_BLOCK_SIZE (2048)
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#define MY_FATAL_FUNC rb_gdbm_fatal
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static void
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rb_gdbm_fatal(msg)
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char *msg;
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{
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rb_raise(rb_eGDBMFatalError, msg);
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}
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struct dbmdata {
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int di_size;
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GDBM_FILE di_dbm;
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};
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static void
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closed_dbm()
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{
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rb_raise(rb_eRuntimeError, "closed GDBM file");
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}
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#define GetDBM(obj, dbmp) do {\
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Data_Get_Struct(obj, struct dbmdata, dbmp);\
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if (dbmp == 0) closed_dbm();\
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if (dbmp->di_dbm == 0) closed_dbm();\
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} while (0)
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#define GetDBM2(obj, data, dbm) {\
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GetDBM(obj, data);\
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(dbm) = dbmp->di_dbm;\
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}
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static void
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free_dbm(dbmp)
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struct dbmdata *dbmp;
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{
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if (dbmp) {
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if (dbmp->di_dbm) gdbm_close(dbmp->di_dbm);
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free(dbmp);
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}
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}
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static VALUE
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fgdbm_close(obj)
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VALUE obj;
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{
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struct dbmdata *dbmp;
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GetDBM(obj, dbmp);
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gdbm_close(dbmp->di_dbm);
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dbmp->di_dbm = 0;
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return Qnil;
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}
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static VALUE
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fgdbm_closed(obj)
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VALUE obj;
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{
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struct dbmdata *dbmp;
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Data_Get_Struct(obj, struct dbmdata, dbmp);
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if (dbmp == 0)
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return Qtrue;
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if (dbmp->di_dbm == 0)
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return Qtrue;
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return Qfalse;
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}
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static VALUE fgdbm_s_alloc _((VALUE));
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static VALUE
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fgdbm_s_alloc(klass)
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VALUE klass;
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{
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return Data_Wrap_Struct(klass, 0, free_dbm, 0);
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}
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static VALUE
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fgdbm_initialize(argc, argv, obj)
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int argc;
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VALUE *argv;
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VALUE obj;
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{
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VALUE file, vmode, vflags;
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GDBM_FILE dbm;
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struct dbmdata *dbmp;
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int mode, flags = 0;
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if (rb_scan_args(argc, argv, "12", &file, &vmode, &vflags) == 1) {
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mode = 0666; /* default value */
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}
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else if (NIL_P(vmode)) {
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mode = -1; /* return nil if DB not exist */
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}
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else {
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mode = NUM2INT(vmode);
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}
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if (!NIL_P(vflags))
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flags = NUM2INT(vflags);
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SafeStringValue(file);
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if (flags & RUBY_GDBM_RW_BIT) {
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flags &= ~RUBY_GDBM_RW_BIT;
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dbm = gdbm_open(RSTRING(file)->ptr, MY_BLOCK_SIZE,
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flags, mode, MY_FATAL_FUNC);
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}
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else {
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dbm = 0;
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if (mode >= 0)
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dbm = gdbm_open(RSTRING(file)->ptr, MY_BLOCK_SIZE,
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GDBM_WRCREAT|flags, mode, MY_FATAL_FUNC);
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if (!dbm)
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dbm = gdbm_open(RSTRING(file)->ptr, MY_BLOCK_SIZE,
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GDBM_WRITER|flags, 0, MY_FATAL_FUNC);
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if (!dbm)
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dbm = gdbm_open(RSTRING(file)->ptr, MY_BLOCK_SIZE,
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GDBM_READER|flags, 0, MY_FATAL_FUNC);
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}
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if (!dbm) {
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if (mode == -1) return Qnil;
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if (gdbm_errno == GDBM_FILE_OPEN_ERROR ||
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gdbm_errno == GDBM_CANT_BE_READER ||
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gdbm_errno == GDBM_CANT_BE_WRITER)
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rb_sys_fail(RSTRING(file)->ptr);
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else
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rb_raise(rb_eGDBMError, "%s", gdbm_strerror(gdbm_errno));
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}
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dbmp = ALLOC(struct dbmdata);
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free_dbm(DATA_PTR(obj));
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DATA_PTR(obj) = dbmp;
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dbmp->di_dbm = dbm;
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dbmp->di_size = -1;
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return obj;
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}
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static VALUE
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fgdbm_s_open(argc, argv, klass)
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int argc;
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VALUE *argv;
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VALUE klass;
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{
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VALUE obj = Data_Wrap_Struct(klass, 0, free_dbm, 0);
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if (NIL_P(fgdbm_initialize(argc, argv, obj))) {
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return Qnil;
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}
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if (rb_block_given_p()) {
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return rb_ensure(rb_yield, obj, fgdbm_close, obj);
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}
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return obj;
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}
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static VALUE
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rb_gdbm_fetch(dbm, key)
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GDBM_FILE dbm;
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datum key;
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{
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datum val;
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VALUE str;
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val = gdbm_fetch(dbm, key);
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if (val.dptr == 0)
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return Qnil;
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str = rb_obj_alloc(rb_cString);
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RSTRING(str)->len = val.dsize;
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RSTRING(str)->aux.capa = val.dsize;
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RSTRING(str)->ptr = REALLOC_N(val.dptr,char,val.dsize+1);
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RSTRING(str)->ptr[val.dsize] = '\0';
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OBJ_TAINT(str);
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return (VALUE)str;
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}
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static VALUE
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rb_gdbm_fetch2(dbm, keystr)
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GDBM_FILE dbm;
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VALUE keystr;
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{
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datum key;
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StringValue(keystr);
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key.dptr = RSTRING(keystr)->ptr;
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key.dsize = RSTRING(keystr)->len;
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return rb_gdbm_fetch(dbm, key);
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}
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static VALUE
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rb_gdbm_fetch3(obj, keystr)
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VALUE obj, keystr;
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{
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struct dbmdata *dbmp;
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GDBM_FILE dbm;
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GetDBM2(obj, dbmp, dbm);
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return rb_gdbm_fetch2(dbm, keystr);
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}
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static VALUE
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rb_gdbm_firstkey(dbm)
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GDBM_FILE dbm;
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{
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datum key;
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VALUE str;
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key = gdbm_firstkey(dbm);
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if (key.dptr == 0)
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return Qnil;
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str = rb_obj_alloc(rb_cString);
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RSTRING(str)->len = key.dsize;
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RSTRING(str)->aux.capa = key.dsize;
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RSTRING(str)->ptr = REALLOC_N(key.dptr,char,key.dsize+1);
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RSTRING(str)->ptr[RSTRING(str)->len] = '\0';
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OBJ_TAINT(str);
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return str;
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}
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static VALUE
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rb_gdbm_nextkey(dbm, keystr)
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GDBM_FILE dbm;
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VALUE keystr;
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{
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datum key, key2;
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VALUE str;
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key.dptr = RSTRING(keystr)->ptr;
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key.dsize = RSTRING(keystr)->len;
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key2 = gdbm_nextkey(dbm, key);
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if (key2.dptr == 0)
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return Qnil;
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str = rb_obj_alloc(rb_cString);
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RSTRING(str)->len = key2.dsize;
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RSTRING(str)->aux.capa = key2.dsize;
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RSTRING(str)->ptr = REALLOC_N(key2.dptr,char,key2.dsize+1);
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RSTRING(str)->ptr[RSTRING(str)->len] = '\0';
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OBJ_TAINT(str);
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return str;
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}
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static VALUE
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fgdbm_fetch(obj, keystr, ifnone)
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VALUE obj, keystr, ifnone;
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{
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VALUE valstr;
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valstr = rb_gdbm_fetch3(obj, keystr);
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if (NIL_P(valstr)) {
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if (ifnone == Qnil && rb_block_given_p())
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return rb_yield(keystr);
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return ifnone;
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}
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return valstr;
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}
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static VALUE
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fgdbm_aref(obj, keystr)
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VALUE obj, keystr;
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{
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return rb_gdbm_fetch3(obj, keystr);
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}
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static VALUE
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fgdbm_fetch_m(argc, argv, obj)
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int argc;
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VALUE *argv;
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VALUE obj;
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{
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VALUE keystr, valstr, ifnone;
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rb_scan_args(argc, argv, "11", &keystr, &ifnone);
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valstr = fgdbm_fetch(obj, keystr, ifnone);
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if (argc == 1 && !rb_block_given_p() && NIL_P(valstr))
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rb_raise(rb_eIndexError, "key not found");
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return valstr;
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}
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static VALUE
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fgdbm_index(obj, valstr)
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VALUE obj, valstr;
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{
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struct dbmdata *dbmp;
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GDBM_FILE dbm;
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VALUE keystr, valstr2;
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StringValue(valstr);
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GetDBM2(obj, dbmp, dbm);
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for (keystr = rb_gdbm_firstkey(dbm); RTEST(keystr);
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keystr = rb_gdbm_nextkey(dbm, keystr)) {
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valstr2 = rb_gdbm_fetch2(dbm, keystr);
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if (!NIL_P(valstr2) &&
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RSTRING(valstr)->len == RSTRING(valstr2)->len &&
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memcmp(RSTRING(valstr)->ptr, RSTRING(valstr2)->ptr,
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RSTRING(valstr)->len) == 0) {
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return keystr;
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}
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}
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return Qnil;
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}
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static VALUE
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fgdbm_select(obj)
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VALUE obj;
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{
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VALUE new = rb_ary_new();
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GDBM_FILE dbm;
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struct dbmdata *dbmp;
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VALUE keystr;
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GetDBM2(obj, dbmp, dbm);
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for (keystr = rb_gdbm_firstkey(dbm); RTEST(keystr);
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keystr = rb_gdbm_nextkey(dbm, keystr)) {
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VALUE assoc = rb_assoc_new(keystr, rb_gdbm_fetch2(dbm, keystr));
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VALUE v = rb_yield(assoc);
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if (RTEST(v)) {
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rb_ary_push(new, assoc);
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}
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GetDBM2(obj, dbmp, dbm);
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}
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return new;
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}
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static VALUE
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fgdbm_values_at(argc, argv, obj)
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int argc;
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VALUE *argv;
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VALUE obj;
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{
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VALUE new = rb_ary_new2(argc);
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int i;
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for (i=0; i<argc; i++) {
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rb_ary_push(new, rb_gdbm_fetch3(obj, argv[i]));
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}
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return new;
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}
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static void
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rb_gdbm_modify(obj)
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VALUE obj;
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{
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rb_secure(4);
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if (OBJ_FROZEN(obj)) rb_error_frozen("GDBM");
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}
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static VALUE
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rb_gdbm_delete(obj, keystr)
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VALUE obj, keystr;
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{
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datum key;
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struct dbmdata *dbmp;
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GDBM_FILE dbm;
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rb_gdbm_modify(obj);
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StringValue(keystr);
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key.dptr = RSTRING(keystr)->ptr;
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key.dsize = RSTRING(keystr)->len;
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GetDBM2(obj, dbmp, dbm);
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if (!gdbm_exists(dbm, key)) {
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return Qnil;
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}
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if (gdbm_delete(dbm, key)) {
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dbmp->di_size = -1;
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rb_raise(rb_eGDBMError, "%s", gdbm_strerror(gdbm_errno));
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}
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else if (dbmp->di_size >= 0) {
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dbmp->di_size--;
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}
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return obj;
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}
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static VALUE
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fgdbm_delete(obj, keystr)
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VALUE obj, keystr;
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{
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VALUE valstr;
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valstr = fgdbm_fetch(obj, keystr, Qnil);
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rb_gdbm_delete(obj, keystr);
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return valstr;
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}
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static VALUE
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fgdbm_shift(obj)
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VALUE obj;
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{
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struct dbmdata *dbmp;
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GDBM_FILE dbm;
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VALUE keystr, valstr;
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rb_gdbm_modify(obj);
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GetDBM2(obj, dbmp, dbm);
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keystr = rb_gdbm_firstkey(dbm);
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if (NIL_P(keystr)) return Qnil;
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valstr = rb_gdbm_fetch2(dbm, keystr);
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rb_gdbm_delete(obj, keystr);
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return rb_assoc_new(keystr, valstr);
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}
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static VALUE
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fgdbm_delete_if(obj)
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VALUE obj;
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{
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struct dbmdata *dbmp;
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GDBM_FILE dbm;
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VALUE keystr, valstr;
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VALUE ret, ary = rb_ary_new();
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int i, status = 0, n;
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rb_gdbm_modify(obj);
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GetDBM2(obj, dbmp, dbm);
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n = dbmp->di_size;
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dbmp->di_size = -1;
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for (keystr = rb_gdbm_firstkey(dbm); RTEST(keystr);
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keystr = rb_gdbm_nextkey(dbm, keystr)) {
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valstr = rb_gdbm_fetch2(dbm, keystr);
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ret = rb_protect(rb_yield, rb_assoc_new(keystr, valstr), &status);
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if (status != 0) break;
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if (RTEST(ret)) rb_ary_push(ary, keystr);
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GetDBM2(obj, dbmp, dbm);
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}
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for (i = 0; i < RARRAY(ary)->len; i++)
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rb_gdbm_delete(obj, RARRAY(ary)->ptr[i]);
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if (status) rb_jump_tag(status);
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if (n > 0) dbmp->di_size = n - RARRAY(ary)->len;
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return obj;
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}
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static VALUE
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fgdbm_clear(obj)
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VALUE obj;
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{
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datum key, nextkey;
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struct dbmdata *dbmp;
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GDBM_FILE dbm;
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rb_gdbm_modify(obj);
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GetDBM2(obj, dbmp, dbm);
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dbmp->di_size = -1;
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#if 0
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while (key = gdbm_firstkey(dbm), key.dptr) {
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if (gdbm_delete(dbm, key)) {
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free(key.dptr);
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rb_raise(rb_eGDBMError, "%s", gdbm_strerror(gdbm_errno));
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}
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free(key.dptr);
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}
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#else
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while (key = gdbm_firstkey(dbm), key.dptr) {
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for (; key.dptr; key = nextkey) {
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nextkey = gdbm_nextkey(dbm, key);
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if (gdbm_delete(dbm, key)) {
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free(key.dptr);
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if (nextkey.dptr) free(nextkey.dptr);
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rb_raise(rb_eGDBMError, "%s", gdbm_strerror(gdbm_errno));
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}
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free(key.dptr);
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}
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}
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#endif
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dbmp->di_size = 0;
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return obj;
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}
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static VALUE
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fgdbm_invert(obj)
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VALUE obj;
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{
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struct dbmdata *dbmp;
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GDBM_FILE dbm;
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VALUE keystr, valstr;
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VALUE hash = rb_hash_new();
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GetDBM2(obj, dbmp, dbm);
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for (keystr = rb_gdbm_firstkey(dbm); RTEST(keystr);
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keystr = rb_gdbm_nextkey(dbm, keystr)) {
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valstr = rb_gdbm_fetch2(dbm, keystr);
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rb_hash_aset(hash, valstr, keystr);
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}
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return hash;
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}
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static VALUE each_pair _((VALUE));
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static VALUE
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each_pair(obj)
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VALUE obj;
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{
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return rb_funcall(obj, rb_intern("each_pair"), 0, 0);
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}
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static VALUE fgdbm_store _((VALUE,VALUE,VALUE));
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static VALUE
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update_i(pair, dbm)
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VALUE pair, dbm;
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{
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Check_Type(pair, T_ARRAY);
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if (RARRAY(pair)->len < 2) {
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rb_raise(rb_eArgError, "pair must be [key, value]");
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}
|
|
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, "select", fgdbm_select, 0);
|
|
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));
|
|
}
|