initial import of DBA

1 files changed, 189 insertions, 0 deletions

diff --git a/ext/dba/dba_gdbm.c b/ext/dba/dba_gdbm.c
new file mode 100644
index 0000000000..0e5f1450f2
--- /dev/null
+++ b/ext/dba/dba_gdbm.c
@@ -0,0 +1,189 @@
+/*
+   +----------------------------------------------------------------------+
+   | PHP HTML Embedded Scripting Language Version 3.0                     |
+   +----------------------------------------------------------------------+
+   | Copyright (c) 1999 PHP Development Team (See Credits file)           |
+   +----------------------------------------------------------------------+
+   | This program is free software; you can redistribute it and/or modify |
+   | it under the terms of one of the following licenses:                 |
+   |                                                                      |
+   |  A) the GNU General Public License as published by the Free Software |
+   |     Foundation; either version 2 of the License, or (at your option) |
+   |     any later version.                                               |
+   |                                                                      |
+   |  B) the PHP License as published by the PHP Development Team and     |
+   |     included in the distribution in the file: LICENSE                |
+   |                                                                      |
+   | This program is distributed in the hope that it will be useful,      |
+   | but WITHOUT ANY WARRANTY; without even the implied warranty of       |
+   | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the        |
+   | GNU General Public License for more details.                         |
+   |                                                                      |
+   | You should have received a copy of both licenses referred to here.   |
+   | If you did not, or have any questions about PHP licensing, please    |
+   | contact core@php.net.                                                |
+   +----------------------------------------------------------------------+
+   | Authors: Sascha Schumann <sas@schell.de>                             |
+   +----------------------------------------------------------------------+
+ */
+
+/* $Id$ */
+
+#include "php.h"
+
+#if DBA_GDBM
+#include "php3_gdbm.h"
+
+#include <gdbm.h>
+
+#define GDBM_DATA dba_gdbm_data *dba = info->dbf
+#define GDBM_GKEY datum gkey; gkey.dptr = (char *) key; gkey.dsize = keylen
+
+typedef struct {
+	GDBM_FILE dbf;
+	datum nextkey;
+} dba_gdbm_data;
+
+DBA_OPEN_FUNC(gdbm)
+{
+	GDBM_FILE dbf;
+	int gmode = 0;
+	int filemode = 0644;
+
+	gmode = info->mode == DBA_READER ? GDBM_READER :
+		info->mode == DBA_WRITER ? GDBM_WRITER : 
+		info->mode == DBA_CREAT  ? GDBM_WRCREAT : 
+		info->mode == DBA_TRUNC ? GDBM_NEWDB : -1;
+		
+	if(gmode == -1) 
+		return FAILURE;
+
+	if(info->argc > 0) {
+		convert_to_long(info->argv[0]);
+		filemode = info->argv[0]->value.lval;
+	}
+
+	dbf = gdbm_open(info->path, 0, gmode, filemode, NULL);
+	
+	if(dbf) {
+		info->dbf = malloc(sizeof(dba_gdbm_data));
+		memset(info->dbf, 0, sizeof(dba_gdbm_data));
+		((dba_gdbm_data *) info->dbf)->dbf = dbf;
+		return SUCCESS;
+	}
+	return FAILURE;
+}
+
+DBA_CLOSE_FUNC(gdbm)
+{
+	GDBM_DATA;
+	
+	if(dba->nextkey.dptr) free(dba->nextkey.dptr);
+	gdbm_close(dba->dbf);
+	free(dba);
+}
+
+DBA_FETCH_FUNC(gdbm)
+{
+	GDBM_DATA;
+	datum gval;
+	char *new = NULL;
+
+	GDBM_GKEY;
+	gval = gdbm_fetch(dba->dbf, gkey);
+	if(gval.dptr) {
+		if(newlen) *newlen = gval.dsize;
+		new = estrndup(gval.dptr, gval.dsize);
+		free(gval.dptr);
+	}
+	return new;
+}
+
+DBA_UPDATE_FUNC(gdbm)
+{
+	datum gval;
+	GDBM_DATA;
+
+	GDBM_GKEY;
+	gval.dptr = (char *) val;
+	gval.dsize = vallen;
+
+	if(gdbm_store(dba->dbf, gkey, gval, 
+				mode == 1 ? GDBM_INSERT : GDBM_REPLACE) == 0)
+		return SUCCESS;
+	printf("XXX %s\n", gdbm_strerror(gdbm_errno));
+	return FAILURE;
+}
+
+DBA_EXISTS_FUNC(gdbm)
+{
+	GDBM_DATA;
+	GDBM_GKEY;
+
+	return gdbm_exists(dba->dbf, gkey) ? SUCCESS : FAILURE;
+}
+
+DBA_DELETE_FUNC(gdbm)
+{
+	GDBM_DATA;
+	GDBM_GKEY;
+	
+	return gdbm_delete(dba->dbf, gkey) == -1 ? FAILURE : SUCCESS;
+}
+
+DBA_FIRSTKEY_FUNC(gdbm)
+{
+	GDBM_DATA;
+	datum gkey;
+	char *key = NULL;
+
+	if(dba->nextkey.dptr) {
+		free(dba->nextkey.dptr);
+	}
+	
+	gkey = gdbm_firstkey(dba->dbf);
+	if(gkey.dptr) {
+		key = estrndup(gkey.dptr, gkey.dsize);
+		if(newlen) *newlen = gkey.dsize;
+		dba->nextkey = gkey;
+	} else {
+		dba->nextkey.dptr = NULL;
+	}
+	return key;
+}
+
+DBA_NEXTKEY_FUNC(gdbm)
+{
+	GDBM_DATA;
+	char *nkey = NULL;
+	datum gkey;
+
+	if(!dba->nextkey.dptr) return NULL;
+	
+	gkey = gdbm_nextkey(dba->dbf, dba->nextkey);
+	free(dba->nextkey.dptr);
+	if(gkey.dptr) {
+		nkey = estrndup(gkey.dptr, gkey.dsize);
+		if(newlen) *newlen = gkey.dsize;
+		dba->nextkey = gkey;
+	} else {
+		dba->nextkey.dptr = NULL;
+	}
+	return nkey;
+}
+
+DBA_OPTIMIZE_FUNC(gdbm)
+{
+	GDBM_DATA;
+	gdbm_reorganize(dba->dbf);
+	return SUCCESS;
+}
+
+DBA_SYNC_FUNC(gdbm) 
+{
+	GDBM_DATA;
+
+	gdbm_sync(dba->dbf);
+	return SUCCESS;
+}
+#endif