php-src/ext/dba/dba_db1.c
2022-04-01 14:38:44 +01:00

186 lines
3.8 KiB
C

/*
+----------------------------------------------------------------------+
| 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: Shen Cheng-Da <cdsheen@gmail.com> |
+----------------------------------------------------------------------+
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "php.h"
#ifdef DBA_DB1
#include "php_db1.h"
#ifdef DB1_INCLUDE_FILE
#include DB1_INCLUDE_FILE
#endif
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
typedef struct {
DB *dbp;
} dba_db1_data;
DBA_OPEN_FUNC(db1)
{
dba_db1_data *dba;
DB *db;
int gmode;
int filemode = info->file_permission;
gmode = 0;
switch (info->mode) {
case DBA_READER:
gmode = O_RDONLY;
break;
case DBA_WRITER:
gmode = O_RDWR;
break;
case DBA_CREAT:
gmode = O_RDWR | O_CREAT;
break;
case DBA_TRUNC:
gmode = O_RDWR | O_CREAT | O_TRUNC;
break;
default:
return FAILURE; /* not possible */
}
db = dbopen((char *)info->path, gmode, filemode, DB_HASH, NULL);
if (db == NULL) {
return FAILURE;
}
dba = pemalloc(sizeof(*dba), info->flags&DBA_PERSISTENT);
dba->dbp = db;
info->dbf = dba;
return SUCCESS;
}
DBA_CLOSE_FUNC(db1)
{
dba_db1_data *dba = info->dbf;
dba->dbp->close(dba->dbp);
pefree(info->dbf, info->flags&DBA_PERSISTENT);
}
DBA_FETCH_FUNC(db1)
{
dba_db1_data *dba = info->dbf;
DBT gval;
DBT gkey;
gkey.data = ZSTR_VAL(key);
gkey.size = ZSTR_LEN(key);
memset(&gval, 0, sizeof(gval));
if (dba->dbp->get(dba->dbp, &gkey, &gval, 0) == RET_SUCCESS) {
return zend_string_init(gval.data, gval.size, /* persistent */ false);
}
return NULL;
}
DBA_UPDATE_FUNC(db1)
{
dba_db1_data *dba = info->dbf;
DBT gval;
DBT gkey;
gkey.data = ZSTR_VAL(key);
gkey.size = ZSTR_LEN(key);
gval.data = ZSTR_VAL(val);
gval.size = ZSTR_LEN(val);
return dba->dbp->put(dba->dbp, &gkey, &gval, mode == 1 ? R_NOOVERWRITE : 0) != RET_SUCCESS ? FAILURE : SUCCESS;
}
DBA_EXISTS_FUNC(db1)
{
dba_db1_data *dba = info->dbf;
DBT gval;
DBT gkey;
gkey.data = ZSTR_VAL(key);
gkey.size = ZSTR_LEN(key);
return dba->dbp->get(dba->dbp, &gkey, &gval, 0) != RET_SUCCESS ? FAILURE : SUCCESS;
}
DBA_DELETE_FUNC(db1)
{
dba_db1_data *dba = info->dbf;
DBT gkey;
gkey.data = ZSTR_VAL(key);
gkey.size = ZSTR_LEN(key);
return dba->dbp->del(dba->dbp, &gkey, 0) != RET_SUCCESS ? FAILURE : SUCCESS;
}
DBA_FIRSTKEY_FUNC(db1)
{
dba_db1_data *dba = info->dbf;
DBT gkey;
DBT gval;
memset(&gkey, 0, sizeof(gkey));
memset(&gval, 0, sizeof(gval));
if (dba->dbp->seq(dba->dbp, &gkey, &gval, R_FIRST) == RET_SUCCESS) {
return zend_string_init(gkey.data, gkey.size, /* persistent */ false);
}
return NULL;
}
DBA_NEXTKEY_FUNC(db1)
{
dba_db1_data *dba = info->dbf;
DBT gkey;
DBT gval;
memset(&gkey, 0, sizeof(gkey));
memset(&gval, 0, sizeof(gval));
if (dba->dbp->seq(dba->dbp, &gkey, &gval, R_NEXT) == RET_SUCCESS) {
return zend_string_init(gkey.data, gkey.size, /* persistent */ false);
}
return NULL;
}
DBA_OPTIMIZE_FUNC(db1)
{
/* dummy */
return SUCCESS;
}
DBA_SYNC_FUNC(db1)
{
return SUCCESS;
}
DBA_INFO_FUNC(db1)
{
return estrdup(DB1_VERSION);
}
#endif