root/dba/dba_ndbm.c

DEFINITIONS

1. DBA_OPEN_FUNC
2. DBA_CLOSE_FUNC
3. DBA_FETCH_FUNC
4. DBA_UPDATE_FUNC
5. DBA_EXISTS_FUNC
6. DBA_DELETE_FUNC
7. DBA_FIRSTKEY_FUNC
8. DBA_NEXTKEY_FUNC
9. DBA_OPTIMIZE_FUNC
10. DBA_SYNC_FUNC
11. DBA_INFO_FUNC

/*
   +----------------------------------------------------------------------+
   | PHP Version 5                                                        |
   +----------------------------------------------------------------------+
   | Copyright (c) 1997-2013 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: Sascha Schumann <sascha@schumann.cx>                         |
   +----------------------------------------------------------------------+
 */

/* $Id$ */

#ifdef HAVE_CONFIG_H
#include "config.h"
#endif

#include "php.h"

#if DBA_NDBM
#include "php_ndbm.h"

#include <fcntl.h>
#ifdef NDBM_INCLUDE_FILE
#include NDBM_INCLUDE_FILE
#endif

#define NDBM_GKEY datum gkey; gkey.dptr = (char *) key; gkey.dsize = keylen

DBA_OPEN_FUNC(ndbm)
{
        DBM *dbf;
        int gmode = 0;
        int filemode = 0644;
        dba_info *pinfo = (dba_info *) info;

        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 */
        }

        if(info->argc > 0) {
                convert_to_long_ex(info->argv[0]);
                filemode = Z_LVAL_PP(info->argv[0]);
        }

        dbf = dbm_open(info->path, gmode, filemode);
        
        pinfo->dbf = dbf;
        return SUCCESS;
}

DBA_CLOSE_FUNC(ndbm)
{
        dbm_close(info->dbf);
}

DBA_FETCH_FUNC(ndbm)
{
        datum gval;
        char *new = NULL;

        NDBM_GKEY;
        gval = dbm_fetch(info->dbf, gkey);
        if(gval.dptr) {
                if(newlen) *newlen = gval.dsize;
                new = estrndup(gval.dptr, gval.dsize);
        }
        return new;
}

DBA_UPDATE_FUNC(ndbm)
{
        datum gval;

        NDBM_GKEY;
        gval.dptr = (char *) val;
        gval.dsize = vallen;

        if(!dbm_store(info->dbf, gkey, gval, mode == 1 ? DBM_INSERT : DBM_REPLACE))
                return SUCCESS;
        return FAILURE;
}

DBA_EXISTS_FUNC(ndbm)
{
        datum gval;
        NDBM_GKEY;
        gval = dbm_fetch(info->dbf, gkey);
        if(gval.dptr) {
                return SUCCESS;
        }
        return FAILURE;
}

DBA_DELETE_FUNC(ndbm)
{
        NDBM_GKEY;
        return(dbm_delete(info->dbf, gkey) == -1 ? FAILURE : SUCCESS);
}

DBA_FIRSTKEY_FUNC(ndbm)
{
        datum gkey;
        char *key = NULL;

        gkey = dbm_firstkey(info->dbf);
        if(gkey.dptr) {
                if(newlen) *newlen = gkey.dsize;
                key = estrndup(gkey.dptr, gkey.dsize);
        }
        return key;
}

DBA_NEXTKEY_FUNC(ndbm)
{
        datum gkey;
        char *nkey = NULL;

        gkey = dbm_nextkey(info->dbf);
        if(gkey.dptr) {
                if(newlen) *newlen = gkey.dsize;
                nkey = estrndup(gkey.dptr, gkey.dsize);
        }
        return nkey;
}

DBA_OPTIMIZE_FUNC(ndbm)
{
        return SUCCESS;
}

DBA_SYNC_FUNC(ndbm)
{
        return SUCCESS;
}

DBA_INFO_FUNC(ndbm)
{
        return estrdup("NDBM");
}

#endif

/*
 * Local variables:
 * tab-width: 4
 * c-basic-offset: 4
 * End:
 * vim600: sw=4 ts=4 fdm=marker
 * vim<600: sw=4 ts=4
 */