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|
/*
+----------------------------------------------------------------------+
| PHP Version 4 |
+----------------------------------------------------------------------+
| Copyright (c) 1997-2006 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: |
| http://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: Marcus Boerger <helly@php.net> |
+----------------------------------------------------------------------+
*/
/* $Id: dba_flatfile.c,v 1.8.2.6.4.1 2006/01/01 13:46:51 sniper Exp $ */
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "php.h"
#if DBA_FLATFILE
#include "php_flatfile.h"
#include "libflatfile/flatfile.h"
#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#define FLATFILE_DATA flatfile *dba = info->dbf
#define FLATFILE_GKEY datum gkey; gkey.dptr = (char *) key; gkey.dsize = keylen
DBA_OPEN_FUNC(flatfile)
{
int fd;
#ifdef F_SETFL
int flags;
#endif
if (info->mode != DBA_READER) {
if (SUCCESS != php_stream_cast(info->fp, PHP_STREAM_AS_FD, (void*)&fd, 1)) {
php_error_docref(NULL TSRMLS_CC, E_WARNING, "Could not cast stream");
return FAILURE;
}
#ifdef F_SETFL
/* Needed becasue some systems do not allow to write to the original
* file contents with O_APPEND being set.
*/
flags = fcntl(fd, F_SETFL);
fcntl(fd, F_SETFL, flags & ~O_APPEND);
#endif
}
info->dbf = pemalloc(sizeof(flatfile), info->flags&DBA_PERSISTENT);
memset(info->dbf, 0, sizeof(flatfile));
((flatfile*)info->dbf)->fp = info->fp;
return SUCCESS;
}
DBA_CLOSE_FUNC(flatfile)
{
FLATFILE_DATA;
if (dba->nextkey.dptr) {
efree(dba->nextkey.dptr);
}
pefree(dba, info->flags&DBA_PERSISTENT);
}
DBA_FETCH_FUNC(flatfile)
{
datum gval;
char *new = NULL;
FLATFILE_DATA;
FLATFILE_GKEY;
gval = flatfile_fetch(dba, gkey TSRMLS_CC);
if (gval.dptr) {
if (newlen) {
*newlen = gval.dsize;
}
new = estrndup(gval.dptr, gval.dsize);
efree(gval.dptr);
}
return new;
}
DBA_UPDATE_FUNC(flatfile)
{
datum gval;
FLATFILE_DATA;
FLATFILE_GKEY;
gval.dptr = (char *) val;
gval.dsize = vallen;
switch(flatfile_store(dba, gkey, gval, mode==1 ? FLATFILE_INSERT : FLATFILE_REPLACE TSRMLS_CC)) {
case -1:
php_error_docref1(NULL TSRMLS_CC, key, E_WARNING, "Operation not possible");
return FAILURE;
default:
case 0:
return SUCCESS;
case 1:
php_error_docref1(NULL TSRMLS_CC, key, E_WARNING, "Key already exists");
return SUCCESS;
}
}
DBA_EXISTS_FUNC(flatfile)
{
datum gval;
FLATFILE_DATA;
FLATFILE_GKEY;
gval = flatfile_fetch(dba, gkey TSRMLS_CC);
if (gval.dptr) {
efree(gval.dptr);
return SUCCESS;
}
return FAILURE;
}
DBA_DELETE_FUNC(flatfile)
{
FLATFILE_DATA;
FLATFILE_GKEY;
return(flatfile_delete(dba, gkey TSRMLS_CC) == -1 ? FAILURE : SUCCESS);
}
DBA_FIRSTKEY_FUNC(flatfile)
{
FLATFILE_DATA;
if (dba->nextkey.dptr) {
efree(dba->nextkey.dptr);
}
dba->nextkey = flatfile_firstkey(dba TSRMLS_CC);
if (dba->nextkey.dptr) {
if (newlen) {
*newlen = dba->nextkey.dsize;
}
return estrndup(dba->nextkey.dptr, dba->nextkey.dsize);
}
return NULL;
}
DBA_NEXTKEY_FUNC(flatfile)
{
FLATFILE_DATA;
if (!dba->nextkey.dptr) {
return NULL;
}
if (dba->nextkey.dptr) {
efree(dba->nextkey.dptr);
}
dba->nextkey = flatfile_nextkey(dba TSRMLS_CC);
if (dba->nextkey.dptr) {
if (newlen) {
*newlen = dba->nextkey.dsize;
}
return estrndup(dba->nextkey.dptr, dba->nextkey.dsize);
}
return NULL;
}
DBA_OPTIMIZE_FUNC(flatfile)
{
/* dummy */
return SUCCESS;
}
DBA_SYNC_FUNC(flatfile)
{
/* dummy */
return SUCCESS;
}
DBA_INFO_FUNC(flatfile)
{
return estrdup(flatfile_version());
}
#endif
/*
* Local variables:
* tab-width: 4
* c-basic-offset: 4
* End:
* vim600: sw=4 ts=4 fdm=marker
* vim<600: sw=4 ts=4
*/
|
