mirror of
https://github.com/Dolibarr/dolibarr.git
synced 2025-12-06 17:48:25 +01:00
126 lines
3.8 KiB
PHP
126 lines
3.8 KiB
PHP
<?php
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/* Copyright (C) 2009 Laurent Destailleur <eldy@users.sourceforge.net>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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* or see http://www.gnu.org/
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*/
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/**
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* \file htdocs/lib/memory.lib.php
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* \brief Set of function for memory management
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* \version $Id$
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*/
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global $shmkeys,$shmoffset;
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$shmkeys=array('main'=>1,'admin'=>2,'dict'=>3,'companies'=>4,'suppliers'=>5,'products'=>6,
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'commercial'=>7,'compta'=>8,'projects'=>9,'cashdesk'=>10,'agenda'=>11,'bills'=>12,
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'propal'=>13,'boxes'=>14,'banks'=>15,'other'=>16,'errors'=>17,'members'=>18,'ecm'=>19,
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'orders'=>20,'users'=>21,'help'=>22,'stocks'=>23,'interventions'=>24,
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'donations'=>25,'contracts'=>26);
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$shmoffset=100;
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/** \brief Return shared memory address used to store dataset with key memoryid
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* \param $memoryid Memory id of shared area
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* \return int <0 if KO, Memoy address of shared memory for key
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*/
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function dol_getshmopaddress($memoryid)
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{
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global $shmkeys,$shmoffset;
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if (empty($shmkeys[$memoryid])) return 0;
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return $shmkeys[$memoryid]+$shmoffset;
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}
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/** \brief Return list of contents of all memory area shared
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* \return int 0=Nothing is done, <0 if KO, >0 if OK
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*/
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function dol_listshmop()
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{
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global $shmkeys,$shmoffset;
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$resarray=array();
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foreach($shmkeys as $key => $val)
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{
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$result=dol_getshmop($key);
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if (! is_numeric($result) || $result > 0) $resarray[$key]=$result;
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}
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return $resarray;
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}
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/** \brief Read a memory area shared by all users, all sessions on server
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* \param $memoryid Memory id of shared area
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* \return int 0=Nothing is done, <0 if KO, >0 if OK
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*/
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function dol_getshmop($memoryid)
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{
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global $shmkeys,$shmoffset;
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if (empty($shmkeys[$memoryid]) || ! function_exists("shmop_open")) return 0;
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$shmkey=dol_getshmopaddress($memoryid);;
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//print 'dol_getshmop memoryid='.$memoryid." shmkey=".$shmkey."<br>\n";
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$handle=@shmop_open($shmkey,'a',0,0);
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if ($handle)
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{
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$size=trim(shmop_read($handle,0,6));
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if ($size) $data=unserialize(shmop_read($handle,6,$size));
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else return -1;
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shmop_close($handle);
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}
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else
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{
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return -2;
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}
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return $data;
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}
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/** \brief Save data into a memory area shared by all users, all sessions on server
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* \param $memoryid Memory id of shared area
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* \param $data Data to save
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* \return int <0 if KO, Nb of bytes written if OK
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*/
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function dol_setshmop($memoryid,$data)
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{
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global $shmkeys,$shmoffset;
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//print 'dol_setshmop memoryid='.$memoryid."<br>\n";
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if (empty($shmkeys[$memoryid]) || ! function_exists("shmop_write")) return 0;
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$shmkey=dol_getshmopaddress($memoryid);
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$newdata=serialize($data);
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$size=strlen($newdata);
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//print 'dol_setshmop memoryid='.$memoryid." shmkey=".$shmkey." newdata=".$size."bytes<br>\n";
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$handle=shmop_open($shmkey,'c',0644,6+$size);
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if ($handle)
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{
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$shm_bytes_written1=shmop_write($handle,str_pad($size,6),0);
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$shm_bytes_written2=shmop_write($handle,$newdata,6);
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if (($shm_bytes_written1 + $shm_bytes_written2) != (6+strlen($newdata)))
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{
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print "Couldn't write the entire length of data\n";
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}
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shmop_close($handle);
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return ($shm_bytes_written1+$shm_bytes_written2);
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}
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else
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{
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print 'Error in shmop_open';
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return -1;
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}
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}
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?>
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