forked from Wavyzz/dolibarr
259 lines
7.6 KiB
PHP
259 lines
7.6 KiB
PHP
<?php
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/* Copyright (C) 2009-2010 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 3 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, see <https://www.gnu.org/licenses/>.
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* or see https://www.gnu.org/
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*/
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/**
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* \file htdocs/core/lib/memory.lib.php
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* \brief Set of function for memory/cache management
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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 = 1000; // Max number of entries found into a language file. If too low, some entries will be overwritten.
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/**
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* Save data into a memory area shared by all users, all sessions on server
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*
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* @param string $memoryid Memory id of shared area
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* @param mixed $data Data to save
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* @return int <0 if KO, Nb of bytes written if OK
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* @see dol_getcache()
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*/
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function dol_setcache($memoryid, $data)
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{
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global $conf;
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$result = 0;
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// Using a memcached server
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if (!empty($conf->memcached->enabled) && class_exists('Memcached'))
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{
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global $dolmemcache;
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if (empty($dolmemcache) || !is_object($dolmemcache))
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{
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$dolmemcache = new Memcached();
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$tmparray = explode(':', $conf->global->MEMCACHED_SERVER);
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$result = $dolmemcache->addServer($tmparray[0], $tmparray[1] ? $tmparray[1] : 11211);
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if (!$result) return -1;
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}
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$memoryid = session_name().'_'.$memoryid;
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//$dolmemcache->setOption(Memcached::OPT_COMPRESSION, false);
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$dolmemcache->add($memoryid, $data); // This fails if key already exists
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$rescode = $dolmemcache->getResultCode();
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if ($rescode == 0)
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{
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return count($data);
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} else {
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return -$rescode;
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}
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} elseif (!empty($conf->memcached->enabled) && class_exists('Memcache'))
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{
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global $dolmemcache;
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if (empty($dolmemcache) || !is_object($dolmemcache))
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{
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$dolmemcache = new Memcache();
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$tmparray = explode(':', $conf->global->MEMCACHED_SERVER);
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$result = $dolmemcache->addServer($tmparray[0], $tmparray[1] ? $tmparray[1] : 11211);
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if (!$result) return -1;
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}
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$memoryid = session_name().'_'.$memoryid;
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//$dolmemcache->setOption(Memcached::OPT_COMPRESSION, false);
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$result = $dolmemcache->add($memoryid, $data); // This fails if key already exists
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if ($result)
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{
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return count($data);
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} else {
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return -1;
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}
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} // Using shmop
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elseif (isset($conf->global->MAIN_OPTIMIZE_SPEED) && ($conf->global->MAIN_OPTIMIZE_SPEED & 0x02))
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{
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$result = dol_setshmop($memoryid, $data);
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}
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return $result;
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}
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/**
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* Read a memory area shared by all users, all sessions on server
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*
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* @param string $memoryid Memory id of shared area
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* @return int|mixed <0 if KO, data if OK
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* @see dol_setcache()
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*/
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function dol_getcache($memoryid)
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{
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global $conf;
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// Using a memcached server
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if (!empty($conf->memcached->enabled) && class_exists('Memcached'))
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{
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global $m;
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if (empty($m) || !is_object($m))
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{
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$m = new Memcached();
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$tmparray = explode(':', $conf->global->MEMCACHED_SERVER);
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$result = $m->addServer($tmparray[0], $tmparray[1] ? $tmparray[1] : 11211);
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if (!$result) return -1;
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}
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$memoryid = session_name().'_'.$memoryid;
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//$m->setOption(Memcached::OPT_COMPRESSION, false);
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//print "Get memoryid=".$memoryid;
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$data = $m->get($memoryid);
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$rescode = $m->getResultCode();
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//print "memoryid=".$memoryid." - rescode=".$rescode." - data=".count($data)."\n<br>";
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//var_dump($data);
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if ($rescode == 0)
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{
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return $data;
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} else {
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return -$rescode;
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}
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} elseif (!empty($conf->memcached->enabled) && class_exists('Memcache'))
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{
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global $m;
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if (empty($m) || !is_object($m))
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{
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$m = new Memcache();
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$tmparray = explode(':', $conf->global->MEMCACHED_SERVER);
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$result = $m->addServer($tmparray[0], $tmparray[1] ? $tmparray[1] : 11211);
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if (!$result) return -1;
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}
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$memoryid = session_name().'_'.$memoryid;
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//$m->setOption(Memcached::OPT_COMPRESSION, false);
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$data = $m->get($memoryid);
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//print "memoryid=".$memoryid." - rescode=".$rescode." - data=".count($data)."\n<br>";
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//var_dump($data);
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if ($data)
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{
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return $data;
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} else {
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return -1;
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}
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} // Using shmop
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elseif (isset($conf->global->MAIN_OPTIMIZE_SPEED) && ($conf->global->MAIN_OPTIMIZE_SPEED & 0x02))
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{
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$data = dol_getshmop($memoryid);
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return $data;
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}
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return 0;
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}
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/**
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* Return shared memory address used to store dataset with key memoryid
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*
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* @param string $memoryid Memory id of shared area ('main', 'agenda', ...)
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* @return int <0 if KO, Memoy address of shared memory for key
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*/
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function dol_getshmopaddress($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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/**
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* Return list of contents of all memory area shared
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*
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* @return array
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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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/**
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* Save data into a memory area shared by all users, all sessions on server
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*
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* @param int $memoryid Memory id of shared area ('main', 'agenda', ...)
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* @param string $data Data to save
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* @return int <0 if KO, Nb of bytes written if OK
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*/
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function dol_setshmop($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 + $shm_bytes_written2) != (6 + dol_strlen($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 + $shm_bytes_written2);
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} else {
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print 'Error in shmop_open for memoryid='.$memoryid.' shmkey='.$shmkey.' 6+size=6+'.$size;
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return -1;
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}
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}
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/**
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* Read a memory area shared by all users, all sessions on server
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*
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* @param string $memoryid Memory id of shared area ('main', 'agenda', ...)
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* @return int <0 if KO, data if OK
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*/
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function dol_getshmop($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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} else {
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return -2;
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}
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return $data;
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}
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