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authormatz <matz@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>1999-05-07 08:23:54 +0000
committermatz <matz@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>1999-05-07 08:23:54 +0000
commitc09a226803d177f2ab3426ec2c72a3186d789010 (patch)
treef4ac6a3db1949e27067568e445919f1ec005c64c
parent3383b32856a3da7e74964402d4d8f7bac1bc1801 (diff)
gdbm module
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_1_3@459 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
-rw-r--r--ext/gdbm/MANIFEST5
-rw-r--r--ext/gdbm/README1
-rw-r--r--ext/gdbm/depend1
-rw-r--r--ext/gdbm/extconf.rb7
-rw-r--r--ext/gdbm/gdbm.c604
5 files changed, 618 insertions, 0 deletions
diff --git a/ext/gdbm/MANIFEST b/ext/gdbm/MANIFEST
new file mode 100644
index 0000000..c0f7b2c
--- /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 0000000..d25cc92
--- /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 0000000..9e157bc
--- /dev/null
+++ b/ext/gdbm/depend
@@ -0,0 +1 @@
+gdbm.o: gdbm.c $(hdrdir)/ruby.h $(hdrdir)/config.h $(hdrdir)/defines.h
diff --git a/ext/gdbm/extconf.rb b/ext/gdbm/extconf.rb
new file mode 100644
index 0000000..3c36f29
--- /dev/null
+++ b/ext/gdbm/extconf.rb
@@ -0,0 +1,7 @@
+require 'mkmf'
+$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 0000000..a9c2c64
--- /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 <gdbm.h>
+#include <fcntl.h>
+#include <errno.h>
+#ifdef USE_CWGUSI
+# include <sys/errno.h>
+#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; i<argc; i++) {
+ rb_ary_push(new, fgdbm_fetch(obj, argv[i]));
+ }
+
+ return new;
+}
+
+static VALUE
+fgdbm_delete(obj, keystr)
+ VALUE obj, keystr;
+{
+ datum key, value;
+ struct dbmdata *dbmp;
+ GDBM_FILE dbm;
+
+ rb_secure(4);
+ 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) {
+ 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);
+}