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dis-bench / src /php /php-src /ext /dba /dba_gdbm.c
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/*
+----------------------------------------------------------------------+
| Copyright (c) The PHP Group |
+----------------------------------------------------------------------+
| This source file is subject to version 3.01 of the PHP license, |
| that is bundled with this package in the file LICENSE, and is |
| available through the world-wide-web at the following url: |
| https://www.php.net/license/3_01.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> |
+----------------------------------------------------------------------+
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include "php.h"
#ifdef DBA_GDBM
#include "php_gdbm.h"
#ifdef GDBM_INCLUDE_FILE
#include GDBM_INCLUDE_FILE
#endif
typedef struct {
GDBM_FILE dbf;
datum nextkey;
} dba_gdbm_data;
DBA_OPEN_FUNC(gdbm)
{
GDBM_FILE dbf;
int gmode = 0;
int filemode = info->file_permission;
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; /* not possible */
dbf = gdbm_open(ZSTR_VAL(info->path), /* int block_size */ 0, gmode, filemode, NULL);
if(dbf) {
info->dbf = pemalloc(sizeof(dba_gdbm_data), info->flags&DBA_PERSISTENT);
memset(info->dbf, 0, sizeof(dba_gdbm_data));
((dba_gdbm_data *) info->dbf)->dbf = dbf;
return SUCCESS;
}
*error = (char *)gdbm_strerror(gdbm_errno);
return FAILURE;
}
DBA_CLOSE_FUNC(gdbm)
{
dba_gdbm_data *dba = info->dbf;
if(dba->nextkey.dptr) free(dba->nextkey.dptr);
gdbm_close(dba->dbf);
pefree(dba, info->flags&DBA_PERSISTENT);
}
DBA_FETCH_FUNC(gdbm)
{
dba_gdbm_data *dba = info->dbf;
datum gval;
datum gkey;
zend_string *fetched_val = NULL;
gkey.dptr = ZSTR_VAL(key);
gkey.dsize = ZSTR_LEN(key);
gval = gdbm_fetch(dba->dbf, gkey);
if (gval.dptr) {
fetched_val = zend_string_init(gval.dptr, gval.dsize, /* persistent */ false);
free(gval.dptr);
}
return fetched_val;
}
DBA_UPDATE_FUNC(gdbm)
{
dba_gdbm_data *dba = info->dbf;
datum gval;
datum gkey;
gkey.dptr = ZSTR_VAL(key);
gkey.dsize = ZSTR_LEN(key);
gval.dptr = ZSTR_VAL(val);
gval.dsize = ZSTR_LEN(val);
switch (gdbm_store(dba->dbf, gkey, gval, mode == 1 ? GDBM_INSERT : GDBM_REPLACE)) {
case 0:
return SUCCESS;
case 1:
return FAILURE;
case -1:
// TODO Check when this happens and confirm this can even happen
php_error_docref(NULL, E_WARNING, "%s", gdbm_strerror(gdbm_errno));
return FAILURE;
default:
// TODO Convert this to an assertion failure
php_error_docref(NULL, E_WARNING, "Unknown return value");
return FAILURE;
}
}
DBA_EXISTS_FUNC(gdbm)
{
dba_gdbm_data *dba = info->dbf;
datum gkey;
gkey.dptr = ZSTR_VAL(key);
gkey.dsize = ZSTR_LEN(key);
return gdbm_exists(dba->dbf, gkey) ? SUCCESS : FAILURE;
}
DBA_DELETE_FUNC(gdbm)
{
dba_gdbm_data *dba = info->dbf;
datum gkey;
gkey.dptr = ZSTR_VAL(key);
gkey.dsize = ZSTR_LEN(key);
return gdbm_delete(dba->dbf, gkey) == -1 ? FAILURE : SUCCESS;
}
DBA_FIRSTKEY_FUNC(gdbm)
{
dba_gdbm_data *dba = info->dbf;
datum gkey;
zend_string *key = NULL;
if (dba->nextkey.dptr) {
free(dba->nextkey.dptr);
}
gkey = gdbm_firstkey(dba->dbf);
if (gkey.dptr) {
key = zend_string_init(gkey.dptr, gkey.dsize, /* persistent */ false);
dba->nextkey = gkey;
} else {
dba->nextkey.dptr = NULL;
}
return key;
}
DBA_NEXTKEY_FUNC(gdbm)
{
dba_gdbm_data *dba = info->dbf;
zend_string *key = NULL;
datum gkey;
if(!dba->nextkey.dptr) { return NULL; }
gkey = gdbm_nextkey(dba->dbf, dba->nextkey);
free(dba->nextkey.dptr);
if (gkey.dptr) {
key = zend_string_init(gkey.dptr, gkey.dsize, /* persistent */ false);
dba->nextkey = gkey;
} else {
dba->nextkey.dptr = NULL;
}
return key;
}
DBA_OPTIMIZE_FUNC(gdbm)
{
dba_gdbm_data *dba = info->dbf;
gdbm_reorganize(dba->dbf);
return SUCCESS;
}
DBA_SYNC_FUNC(gdbm)
{
dba_gdbm_data *dba = info->dbf;
gdbm_sync(dba->dbf);
return SUCCESS;
}
DBA_INFO_FUNC(gdbm)
{
return estrdup(gdbm_version);
}
#endif