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|
/*
+----------------------------------------------------------------------+
| PHP Version 5 |
+----------------------------------------------------------------------+
| Copyright (c) 1997-2004 The PHP Group |
+----------------------------------------------------------------------+
| This source file is subject to version 3.0 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: |
| http://www.php.net/license/3_0.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. |
+----------------------------------------------------------------------+
| Authors: Marcus Boerger <helly@php.net> |
| 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
static void php_dba_db4_errcall_fcn(const char *errpfx, char *msg)
{
TSRMLS_FETCH();
php_error_docref(NULL TSRMLS_CC, E_NOTICE, "%s%s", errpfx?errpfx:"", msg);
}
#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, err;
int filemode = 0644;
struct stat check_stat;
int s = VCWD_STAT(info->path, &check_stat);
if (!s && !check_stat.st_size) {
info->mode = DBA_TRUNC; /* force truncate */
}
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 (info->flags & DBA_PERSISTENT) {
gmode |= DB_THREAD;
}
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]);
}
#ifdef DB_FCNTL_LOCKING
gmode |= DB_FCNTL_LOCKING;
#endif
if ((err=db_create(&dbp, NULL, 0)) == 0) {
dbp->set_errcall(dbp, php_dba_db4_errcall_fcn);
if (
#if (DB_VERSION_MAJOR == 4 && DB_VERSION_MINOR >= 1)
(err=dbp->open(dbp, 0, info->path, NULL, type, gmode, filemode)) == 0) {
#else
(err=dbp->open(dbp, info->path, NULL, type, gmode, filemode)) == 0) {
#endif
dba_db4_data *data;
data = pemalloc(sizeof(*data), info->flags&DBA_PERSISTENT);
data->dbp = dbp;
data->cursor = NULL;
info->dbf = data;
return SUCCESS;
} else {
dbp->close(dbp, 0);
*error = db_strerror(err);
}
} else {
*error = db_strerror(err);
}
return FAILURE;
}
DBA_CLOSE_FUNC(db4)
{
DB4_DATA;
if (dba->cursor) dba->cursor->c_close(dba->cursor);
dba->dbp->close(dba->dbp, 0);
pefree(dba, info->flags&DBA_PERSISTENT);
}
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;
}
DBA_INFO_FUNC(db4)
{
return estrdup(DB_VERSION_STRING);
}
#endif
/*
* Local variables:
* tab-width: 4
* c-basic-offset: 4
* End:
* vim600: sw=4 ts=4 fdm=marker
* vim<600: sw=4 ts=4
*/
|
