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    1: /*
    2:    +----------------------------------------------------------------------+
    3:    | PHP Version 5                                                        |
    4:    +----------------------------------------------------------------------+
    5:    | Copyright (c) 1997-2012 The PHP Group                                |
    6:    +----------------------------------------------------------------------+
    7:    | This source file is subject to version 3.01 of the PHP license,      |
    8:    | that is bundled with this package in the file LICENSE, and is        |
    9:    | available through the world-wide-web at the following url:           |
   10:    | http://www.php.net/license/3_01.txt                                  |
   11:    | If you did not receive a copy of the PHP license and are unable to   |
   12:    | obtain it through the world-wide-web, please send a note to          |
   13:    | license@php.net so we can mail you a copy immediately.               |
   14:    +----------------------------------------------------------------------+
   15:    | Author: Marcus Boerger <helly@php.net>                               |
   16:    +----------------------------------------------------------------------+
   17:  */
   18: 
   19: /* $Id: dba_flatfile.c,v 1.1.1.2 2012/05/29 12:34:37 misho Exp $ */
   20: 
   21: #ifdef HAVE_CONFIG_H
   22: #include "config.h"
   23: #endif
   24: 
   25: #include "php.h"
   26: 
   27: #if DBA_FLATFILE
   28: #include "php_flatfile.h"
   29: 
   30: #include "libflatfile/flatfile.h"
   31: 
   32: #ifdef HAVE_UNISTD_H
   33: #include <unistd.h>
   34: #endif
   35: #include <sys/types.h>
   36: #include <sys/stat.h>
   37: #include <fcntl.h>
   38: 
   39: #define FLATFILE_DATA flatfile *dba = info->dbf
   40: #define FLATFILE_GKEY datum gkey; gkey.dptr = (char *) key; gkey.dsize = keylen
   41: 
   42: DBA_OPEN_FUNC(flatfile)
   43: {
   44: 	info->dbf = pemalloc(sizeof(flatfile), info->flags&DBA_PERSISTENT);
   45: 	memset(info->dbf, 0, sizeof(flatfile));
   46: 
   47: 	((flatfile*)info->dbf)->fp = info->fp;
   48: 
   49: 	return SUCCESS;
   50: }
   51: 
   52: DBA_CLOSE_FUNC(flatfile)
   53: {
   54: 	FLATFILE_DATA;
   55: 
   56: 	if (dba->nextkey.dptr) {
   57: 		efree(dba->nextkey.dptr);
   58: 	}
   59: 	pefree(dba, info->flags&DBA_PERSISTENT);
   60: }
   61: 
   62: DBA_FETCH_FUNC(flatfile)
   63: {
   64: 	datum gval;
   65: 	char *new = NULL;
   66: 
   67: 	FLATFILE_DATA;
   68: 	FLATFILE_GKEY;
   69: 
   70: 	gval = flatfile_fetch(dba, gkey TSRMLS_CC);
   71: 	if (gval.dptr) {
   72: 		if (newlen) {
   73: 			*newlen = gval.dsize;
   74: 		}
   75: 		new = estrndup(gval.dptr, gval.dsize);
   76: 		efree(gval.dptr);
   77: 	}
   78: 	return new;
   79: }
   80: 
   81: DBA_UPDATE_FUNC(flatfile)
   82: {
   83: 	datum gval;
   84: 
   85: 	FLATFILE_DATA;
   86: 	FLATFILE_GKEY;
   87: 	gval.dptr = (char *) val;
   88: 	gval.dsize = vallen;
   89: 	
   90: 	switch(flatfile_store(dba, gkey, gval, mode==1 ? FLATFILE_INSERT : FLATFILE_REPLACE TSRMLS_CC)) {
   91: 	case -1:
   92: 		php_error_docref1(NULL TSRMLS_CC, key, E_WARNING, "Operation not possible");
   93: 		return FAILURE;
   94: 	default:
   95: 	case 0:
   96: 		return SUCCESS;
   97: 	case 1:
   98: 		php_error_docref1(NULL TSRMLS_CC, key, E_WARNING, "Key already exists");
   99: 		return FAILURE;
  100: 	}
  101: }
  102: 
  103: DBA_EXISTS_FUNC(flatfile)
  104: {
  105: 	datum gval;
  106: 	FLATFILE_DATA;
  107: 	FLATFILE_GKEY;
  108: 	
  109: 	gval = flatfile_fetch(dba, gkey TSRMLS_CC);
  110: 	if (gval.dptr) {
  111: 		efree(gval.dptr);
  112: 		return SUCCESS;
  113: 	}
  114: 	return FAILURE;
  115: }
  116: 
  117: DBA_DELETE_FUNC(flatfile)
  118: {
  119: 	FLATFILE_DATA;
  120: 	FLATFILE_GKEY;
  121: 	return(flatfile_delete(dba, gkey TSRMLS_CC) == -1 ? FAILURE : SUCCESS);
  122: }
  123: 
  124: DBA_FIRSTKEY_FUNC(flatfile)
  125: {
  126: 	FLATFILE_DATA;
  127: 
  128: 	if (dba->nextkey.dptr) {
  129: 		efree(dba->nextkey.dptr);
  130: 	}
  131: 	dba->nextkey = flatfile_firstkey(dba TSRMLS_CC);
  132: 	if (dba->nextkey.dptr) {
  133: 		if (newlen)  {
  134: 			*newlen = dba->nextkey.dsize;
  135: 		}
  136: 		return estrndup(dba->nextkey.dptr, dba->nextkey.dsize);
  137: 	}
  138: 	return NULL;
  139: }
  140: 
  141: DBA_NEXTKEY_FUNC(flatfile)
  142: {
  143: 	FLATFILE_DATA;
  144: 	
  145: 	if (!dba->nextkey.dptr) {
  146: 		return NULL;
  147: 	}
  148: 	
  149: 	if (dba->nextkey.dptr) {
  150: 		efree(dba->nextkey.dptr);
  151: 	}
  152: 	dba->nextkey = flatfile_nextkey(dba TSRMLS_CC);
  153: 	if (dba->nextkey.dptr) {
  154: 		if (newlen) {
  155: 			*newlen = dba->nextkey.dsize;
  156: 		}
  157: 		return estrndup(dba->nextkey.dptr, dba->nextkey.dsize);
  158: 	}
  159: 	return NULL;
  160: }
  161: 
  162: DBA_OPTIMIZE_FUNC(flatfile)
  163: {
  164: 	/* dummy */
  165: 	return SUCCESS;
  166: }
  167: 
  168: DBA_SYNC_FUNC(flatfile)
  169: {
  170: 	/* dummy */
  171: 	return SUCCESS;
  172: }
  173: 
  174: DBA_INFO_FUNC(flatfile)
  175: {
  176: 	return estrdup(flatfile_version());
  177: }
  178: 
  179: #endif
  180: 
  181: /*
  182:  * Local variables:
  183:  * tab-width: 4
  184:  * c-basic-offset: 4
  185:  * End:
  186:  * vim600: sw=4 ts=4 fdm=marker
  187:  * vim<600: sw=4 ts=4
  188:  */