Add Berkeley db4 support

1 files changed, 216 insertions, 0 deletions

diff --git a/ext/dba/dba_db4.c b/ext/dba/dba_db4.c
new file mode 100644
index 0000000000..06c6cdbd32
--- /dev/null
+++ b/ext/dba/dba_db4.c
@@ -0,0 +1,216 @@
+/*
+   +----------------------------------------------------------------------+
+   | PHP Version 4                                                        |
+   +----------------------------------------------------------------------+
+   | Copyright (c) 1997-2002 The PHP Group                                |
+   +----------------------------------------------------------------------+
+   | This source file is subject to version 2.02 of the PHP license,      |
+   | that is bundled with this package in the file LICENSE, and is        |
+   | available at through the world-wide-web at                           |
+   | http://www.php.net/license/2_02.txt.                                 |
+   | If you did not receive a copy of the PHP license and are unable to   |
+   | obtain it through the world-wide-web, please send a note to          |
+   | license@php.net so we can mail you a copy immediately.               |
+   +----------------------------------------------------------------------+
+   | Author: Sascha Schumann <sascha@schumann.cx>                         |
+   +----------------------------------------------------------------------+
+ */
+
+/* $Id$ */
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include "php.h"
+
+#if DBA_DB4
+#include "php_db4.h"
+#include <sys/stat.h>
+
+#include <string.h>
+#ifdef DB4_INCLUDE_FILE
+#include DB4_INCLUDE_FILE
+#else
+#include <db.h>
+#endif
+
+#define DB4_DATA dba_db4_data *dba = info->dbf
+#define DB4_GKEY \
+	DBT gkey; \
+	memset(&gkey, 0, sizeof(gkey)); \
+	gkey.data = (char *) key; gkey.size = keylen
+
+typedef struct {
+	DB *dbp;
+	DBC *cursor;
+} dba_db4_data;
+
+DBA_OPEN_FUNC(db4)
+{
+	DB *dbp = NULL;
+	DBTYPE type;
+	int gmode = 0;
+	int filemode = 0644;
+	struct stat check_stat;
+	int s = VCWD_STAT(info->path, &check_stat);
+
+	type =  info->mode == DBA_READER ? DB_UNKNOWN :
+		info->mode == DBA_TRUNC ? DB_BTREE :
+		s? DB_BTREE : DB_UNKNOWN;
+	  
+	gmode = info->mode == DBA_READER ? DB_RDONLY :
+		(info->mode == DBA_CREAT && s) ? DB_CREATE : 
+		(info->mode == DBA_CREAT && !s) ? 0 :
+		info->mode == DBA_WRITER ? 0         : 
+		info->mode == DBA_TRUNC ? DB_CREATE | DB_TRUNCATE : -1;
+
+	if (gmode == -1)
+		return FAILURE; /* not possible */
+
+	if (info->argc > 0) {
+		convert_to_long_ex(info->argv[0]);
+		filemode = Z_LVAL_PP(info->argv[0]);
+	}
+
+	if (db_create(&dbp, NULL, 0) == 0 &&
+#if (DB_VERSION_MAJOR == 4 && DB_VERSION_MINOR >= 1)
+			dbp->open(dbp, 0, info->path, NULL, type, gmode, filemode) == 0) {
+#else
+			dbp->open(dbp, info->path, NULL, type, gmode, filemode) == 0) {
+#endif
+		dba_db4_data *data;
+
+		data = emalloc(sizeof(*data));
+		data->dbp = dbp;
+		data->cursor = NULL;
+		info->dbf = data;
+		
+		return SUCCESS;
+	} else if (dbp != NULL) {
+		dbp->close(dbp, 0);
+	}
+
+	return FAILURE;
+}
+
+DBA_CLOSE_FUNC(db4)
+{
+	DB4_DATA;
+	
+	if (dba->cursor) dba->cursor->c_close(dba->cursor);
+	dba->dbp->close(dba->dbp, 0);
+	efree(dba);
+}
+
+DBA_FETCH_FUNC(db4)
+{
+	DBT gval;
+	char *new = NULL;
+	DB4_DATA;
+	DB4_GKEY;
+	
+	memset(&gval, 0, sizeof(gval));
+	if (!dba->dbp->get(dba->dbp, NULL, &gkey, &gval, 0)) {
+		if (newlen) *newlen = gval.size;
+		new = estrndup(gval.data, gval.size);
+	}
+	return new;
+}
+
+DBA_UPDATE_FUNC(db4)
+{
+	DBT gval;
+	DB4_DATA;
+	DB4_GKEY;
+	
+	memset(&gval, 0, sizeof(gval));
+	gval.data = (char *) val;
+	gval.size = vallen;
+
+	if (!dba->dbp->put(dba->dbp, NULL, &gkey, &gval, 
+				mode == 1 ? DB_NOOVERWRITE : 0)) {
+		return SUCCESS;
+	}
+	return FAILURE;
+}
+
+DBA_EXISTS_FUNC(db4)
+{
+	DBT gval;
+	DB4_DATA;
+	DB4_GKEY;
+	
+	memset(&gval, 0, sizeof(gval));
+	if (!dba->dbp->get(dba->dbp, NULL, &gkey, &gval, 0)) {
+		return SUCCESS;
+	}
+	return FAILURE;
+}
+
+DBA_DELETE_FUNC(db4)
+{
+	DB4_DATA;
+	DB4_GKEY;
+
+	return dba->dbp->del(dba->dbp, NULL, &gkey, 0) ? FAILURE : SUCCESS;
+}
+
+DBA_FIRSTKEY_FUNC(db4)
+{
+	DB4_DATA;
+
+	if (dba->cursor) {
+		dba->cursor->c_close(dba->cursor);
+	}
+
+	dba->cursor = NULL;
+	if (dba->dbp->cursor(dba->dbp, NULL, &dba->cursor, 0) != 0) {
+		return NULL;
+	}
+
+	/* we should introduce something like PARAM_PASSTHRU... */
+	return dba_nextkey_db4(info, newlen TSRMLS_CC);
+}
+
+DBA_NEXTKEY_FUNC(db4)
+{
+	DB4_DATA;
+	DBT gkey, gval;
+	char *nkey = NULL;
+	
+	memset(&gkey, 0, sizeof(gkey));
+	memset(&gval, 0, sizeof(gval));
+
+	if (dba->cursor->c_get(dba->cursor, &gkey, &gval, DB_NEXT) == 0) {
+		if (gkey.data) {
+			nkey = estrndup(gkey.data, gkey.size);
+			if (newlen) *newlen = gkey.size;
+		}
+	}
+
+	return nkey;
+}
+
+DBA_OPTIMIZE_FUNC(db4)
+{
+	return SUCCESS;
+}
+
+DBA_SYNC_FUNC(db4)
+{
+	DB4_DATA;
+
+	return dba->dbp->sync(dba->dbp, 0) ? FAILURE : SUCCESS;
+}
+
+#endif
+
+/*
+ * Local variables:
+ * tab-width: 4
+ * c-basic-offset: 4
+ * End:
+ * vim600: sw=4 ts=4 fdm=marker
+ * vim<600: sw=4 ts=4
+ */