php-src/ext/dba/dba_db3.c
Zeev Suraski 883bd2b1de - Fix virtual cwd bug
- Add more V_STAT() V_LSTAT() changes
2000-04-20 17:24:01 +00:00

207 lines
4.9 KiB
C

/*
+----------------------------------------------------------------------+
| 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_DB3
#include "php_db3.h"
#include <sys/stat.h>
#include <string.h>
#ifdef DB3_INCLUDE_FILE
#include DB3_INCLUDE_FILE
#endif
#define DB3_DATA dba_db3_data *dba = info->dbf
#define DB3_GKEY \
DBT gkey; \
memset(&gkey, 0, sizeof(gkey)); \
gkey.data = (char *) key; gkey.size = keylen
typedef struct {
DB *dbp;
DBC *cursor;
} dba_db3_data;
DBA_OPEN_FUNC(db3)
{
DB *dbp = NULL;
DBTYPE type;
int gmode = 0;
int filemode = 0644;
struct stat check_stat;
type = info->mode == DBA_READER ? DB_UNKNOWN :
info->mode == DBA_TRUNC ? DB_BTREE :
V_STAT(info->path, &check_stat) ? DB_BTREE : DB_UNKNOWN;
gmode = info->mode == DBA_READER ? DB_RDONLY :
info->mode == DBA_CREAT ? DB_CREATE :
info->mode == DBA_WRITER ? 0 :
info->mode == DBA_TRUNC ? DB_CREATE | DB_TRUNCATE : -1;
if (gmode == -1)
return FAILURE;
if (info->argc > 0) {
convert_to_long_ex(info->argv[0]);
filemode = (*info->argv[0])->value.lval;
}
if (db_create(&dbp, NULL, 0) == 0 &&
dbp->open(dbp, info->path, NULL, type, gmode, filemode) == 0) {
dba_db3_data *data;
data = malloc(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(db3)
{
DB3_DATA;
if (dba->cursor) dba->cursor->c_close(dba->cursor);
dba->dbp->close(dba->dbp, 0);
free(dba);
}
DBA_FETCH_FUNC(db3)
{
DBT gval;
char *new = NULL;
DB3_DATA;
DB3_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(db3)
{
DBT gval;
DB3_DATA;
DB3_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(db3)
{
DBT gval;
DB3_DATA;
DB3_GKEY;
memset(&gval, 0, sizeof(gval));
if (!dba->dbp->get(dba->dbp, NULL, &gkey, &gval, 0)) {
return SUCCESS;
}
return FAILURE;
}
DBA_DELETE_FUNC(db3)
{
DB3_DATA;
DB3_GKEY;
return dba->dbp->del(dba->dbp, NULL, &gkey, 0) ? FAILURE : SUCCESS;
}
DBA_FIRSTKEY_FUNC(db3)
{
DB3_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_db3(info, newlen);
}
DBA_NEXTKEY_FUNC(db3)
{
DB3_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(db3)
{
return SUCCESS;
}
DBA_SYNC_FUNC(db3)
{
DB3_DATA;
return dba->dbp->sync(dba->dbp, 0) ? FAILURE : SUCCESS;
}
#endif