/**
* Disconnect from remote cache store
*
* @return @e boolean
*/
public function disconnect()
{
if (function_exists('eaccelerator_gc')) {
eaccelerator_gc();
}
return true;
}
public function clean()
{
eaccelerator_clean();
eaccelerator_clear();
eaccelerator_gc();
eaccelerator_purge();
return;
}
/**
* Deletes all EAccelerator data cache
*/
public function flushAll()
{
//delete expired content then delete all
eaccelerator_gc();
$idkeys = eaccelerator_list_keys();
foreach ($idkeys as $k) {
$this->flush(substr($k['name'], 1));
}
}
public function clear()
{
if (!CACHE_STATUS) {
return false;
}
eaccelerator_gc();
foreach (eaccelerator_list_keys() as $key) {
cache_delete_callback(substr($key["name"], 1));
}
}
/**
* 清空cache中所有项, 全部清除需要遍历cache,一个一个删除!
* @return void
* @access public
*/
public static function flush()
{
// 清除过期的key
eaccelerator_gc();
// 遍历key,一个一个删除
$list = eaccelerator_list_keys();
foreach ($list as $k => $v) {
self::delete($v['name']);
}
}
public function clear()
{
if (!_cacheStatus) {
return FALSE;
}
eaccelerator_gc();
foreach (eaccelerator_list_keys() as $key) {
cache_delete_callback(substr($key["name"], 1));
}
}
public function flush()
{
// first, remove expired content from cache
eaccelerator_gc();
// now, remove leftover cache-keys
$keys = eaccelerator_list_keys();
foreach ($keys as $key) {
$this->deleteValue(substr($key['name'], 1));
}
}
/**
* @see sfCache
*/
public function clean($mode = sfCache::ALL)
{
if (sfCache::OLD === $mode) {
return eaccelerator_gc();
}
$infos = eaccelerator_list_keys();
if (is_array($infos)) {
foreach ($infos as $info) {
if (false !== strpos($info['name'], $this->getOption('prefix'))) {
// eaccelerator bug (http://eaccelerator.net/ticket/287)
$key = 0 === strpos($info['name'], ':') ? substr($info['name'], 1) : $info['name'];
if (!eaccelerator_rm($key)) {
return false;
}
}
}
}
return true;
}
/**
* {@inheritDoc}
*/
function tidy()
{
global $config;
eaccelerator_gc();
$config->set('cache_last_gc', time(), false);
}
public function delete_expired()
{
eaccelerator_gc();
}
/**
* Garbage collect stale sessions from the SessionHandler backend.
*
* @access public
* @param integer $maxlifetime The maximum age of a session.
* @return boolean True on success, false otherwise.
*/
function gc($maxlifetime)
{
eaccelerator_gc();
return true;
}
/**
* Garbage collect expired cache data
*
* @access public
* @return boolean True on success, false otherwise.
*/
function gc()
{
return eaccelerator_gc();
}
/**
* Smarty Cache Handler<br>
* utilizing eAccelerator extension (http://eaccelerator.net/HomeUk)<br>
*
* Name: smarty_cache_eaccelerator<br>
* Type: Cache Handler<br>
* Purpose: Replacement for the file based cache handling of Smarty. smarty_cache_eaccelerator() is
* using Turck eaccelerator extension to minimize disk usage.
* File: cache.eaccelerator.php<br>
* Date: Dec 2, 2003<br>
*
* Usage Example<br>
* <pre>
* $smarty = new Smarty;
* $smarty->cache_handler_func = 'smarty_cache_eaccelerator';
* $smarty->caching = true;
* $smarty->display('index.tpl');
* </pre>
*
* @author André Rabold
* @version RC-1
*
* @param string $action Cache operation to perform ( read | write | clear )
* @param mixed $smarty Reference to an instance of Smarty
* @param string $cache_content Reference to cached contents
* @param string $tpl_file Template file name
* @param string $cache_id Cache identifier
* @param string $compile_id Compile identifier
* @param integer $exp_time Expiration time
* @return boolean TRUE on success, FALSE otherwise
*
* @link http://eaccelerator.net/HomeUk
* (eaccelerator homepage)
* @link http://smarty.php.net/manual/en/section.template.cache.handler.func.php
* (Smarty online manual)
*/
function smarty_cache_eaccelerator($action, &$smarty, &$cache_content, $tpl_file=null, $cache_id=null, $compile_id=null, $exp_time=null)
{
if(!function_exists("eaccelerator")) {
$smarty->trigger_error("cache_handler: PHP Extension \"eaccelerator\" (http://eaccelerator.net/HomeUk) not installed.");
return false;
}
// Create unique cache id:
// We are using smarty's internal functions here to be as compatible as possible.
$_auto_id = $smarty->_get_auto_id($cache_id, $compile_id);
$_cache_file = substr($smarty->_get_auto_filename(".", $tpl_file, $_auto_id),2);
$eaccelerator_id = "smarty_eaccelerator|".$_cache_file;
// The index contains all stored cache ids in a hierarchy and can be iterated later
$eaccelerator_index_id = "smarty_eaccelerator_index";
switch ($action) {
case 'read':
// read cache from shared memory
$cache_content = eaccelerator_get($eaccelerator_id);
if (!is_null($cache_content) && _eaccelerator_hasexpired($cache_content)) {
// Cache has been expired so we clear it now by calling ourself with another parameter :)
$cache_content = null;
smarty_cache_eaccelerator('clear', $smarty, $cache_content, $tpl_file, $cache_id, $compile_id);
}
$return = true;
break;
case 'write':
// save cache to shared memory
$current_time = time();
if (is_null($exp_time) || $exp_time < $current_time)
$ttl = 0;
else
$ttl = $exp_time - time();
// First run garbage collection
eaccelerator_gc();
// Put content into cache
eaccelerator_lock($eaccelerator_id);
eaccelerator_put($eaccelerator_id, $cache_content, $ttl);
// Create an index association
eaccelerator_lock($eaccelerator_index_id);
$eaccelerator_index = eaccelerator_get($eaccelerator_index_id);
if (!is_array($eaccelerator_index))
$eaccelerator_index = array();
$indexes = explode(DIRECTORY_SEPARATOR, $_cache_file);
$_pointer =& $eaccelerator_index;
foreach ($indexes as $index) {
if (!isset($_pointer[$index]))
$_pointer[$index] = array();
$_pointer =& $_pointer[$index];
}
$_pointer = $eaccelerator_id;
eaccelerator_put($eaccelerator_index_id, $eaccelerator_index, 0);
eaccelerator_unlock($eaccelerator_index_id);
eaccelerator_unlock($eaccelerator_id);
break;
case 'clear':
// clear cache info
eaccelerator_lock($eaccelerator_index_id);
$eaccelerator_index = eaccelerator_get($eaccelerator_index_id);
if (is_array($eaccelerator_index)) {
if (empty($cache_id) && empty($compile_id) && empty($tpl_file)) {
// clear all cache
eaccelerator_lock($eaccelerator_id);
_eaccelerator_clear_cache($eaccelerator_index);
eaccelerator_unlock($eaccelerator_id);
$eaccelerator_index = array();
}
else {
// clear single file or cache group
$indexes = explode(DIRECTORY_SEPARATOR, $_cache_file);
if (is_null($tpl_file))
array_pop($indexes);
$_pointer =& $eaccelerator_index;
$_failed = false;
foreach ($indexes as $index) {
if (!isset($_pointer[$index])) {
$_failed = true;
break;
}
$_pointer =& $_pointer[$index];
}
if (!$_failed) {
if (is_array($_pointer)) {
// Clear cache group
_eaccelerator_clear_cache($_pointer);
}
else {
// Clear single file
eaccelerator_lock($_pointer);
eaccelerator_rm($_pointer);
eaccelerator_unlock($_pointer);
}
$_pointer = null;
}
}
}
eaccelerator_put($eaccelerator_index_id, $eaccelerator_index, 0);
eaccelerator_unlock($eaccelerator_index_id);
$return = true;
break;
default:
// error, unknown action
$smarty->trigger_error("cache_handler: unknown action \"$action\"");
$return = false;
break;
}
return $return;
}
public function flush()
{
eaccelerator_gc();
eaccelerator_clear();
eaccelerator_removed_scripts();
}
public function gc($force)
{
if (rand(1, Cache::GC_DIVISOR) < Cache::GC_PROBABILITY || $force) {
eaccelerator_gc();
}
}
/**
* Puts value in the cache under key for ttl seconds.
*
* - It may "miss" so shouldn't be depended on
* - Uses the cache engine chosen in the ACP and saved in settings.php
* - It supports:
* Turck MMCache: http://turck-mmcache.sourceforge.net/index_old.html#api
* Xcache: http://xcache.lighttpd.net/wiki/XcacheApi
* memcache: http://www.php.net/memcache
* APC: http://www.php.net/apc
* eAccelerator: http://bart.eaccelerator.net/doc/phpdoc/
* Zend: http://files.zend.com/help/Zend-Platform/output_cache_functions.htm
* Zend: http://files.zend.com/help/Zend-Platform/zend_cache_functions.htm
*
* @param string $key
* @param string|int|mixed[]|null $value
* @param int $ttl = 120
*/
function cache_put_data($key, $value, $ttl = 120)
{
global $cache_memcached, $memcached, $cache_hits, $cache_count, $db_show_debug;
global $cache_accelerator, $cache_enable;
if (empty($cache_enable)) {
return;
}
$cache_count = isset($cache_count) ? $cache_count + 1 : 1;
if (isset($db_show_debug) && $db_show_debug === true) {
$cache_hits[$cache_count] = array('k' => $key, 'd' => 'put', 's' => $value === null ? 0 : strlen(serialize($value)));
$st = microtime(true);
}
$key = cache_get_key($key);
$value = $value === null ? null : serialize($value);
switch ($cache_accelerator) {
case 'memcached':
// The simple yet efficient memcached.
if (function_exists('memcached_set') || function_exists('memcache_set') && !empty($cache_memcached)) {
// Not connected yet?
if (empty($memcached)) {
get_memcached_server();
}
if (!$memcached) {
return;
}
memcache_set($memcached, $key, $value, 0, $ttl);
}
break;
case 'eaccelerator':
// eAccelerator...
if (function_exists('eaccelerator_put')) {
if (mt_rand(0, 10) == 1) {
eaccelerator_gc();
}
if ($value === null) {
@eaccelerator_rm($key);
} else {
eaccelerator_put($key, $value, $ttl);
}
}
break;
case 'mmcache':
// Turck MMCache?
if (function_exists('mmcache_put')) {
if (mt_rand(0, 10) == 1) {
mmcache_gc();
}
if ($value === null) {
@mmcache_rm($key);
} else {
mmcache_lock($key);
mmcache_put($key, $value, $ttl);
mmcache_unlock($key);
}
}
break;
case 'apc':
case 'apcu':
// Alternative PHP Cache, ahoy!
if (function_exists('apc_store')) {
// An extended key is needed to counteract a bug in APC.
if ($value === null) {
apc_delete($key . 'elkarte');
} else {
apc_store($key . 'elkarte', $value, $ttl);
}
}
break;
case 'zend':
// Zend Platform/ZPS/etc.
if (function_exists('zend_shm_cache_store')) {
zend_shm_cache_store('ELK::' . $key, $value, $ttl);
} elseif (function_exists('output_cache_put')) {
output_cache_put($key, $value);
}
break;
case 'xcache':
if (function_exists('xcache_set') && ini_get('xcache.var_size') > 0) {
if ($value === null) {
xcache_unset($key);
} else {
xcache_set($key, $value, $ttl);
}
}
break;
default:
// Otherwise custom cache?
if ($value === null) {
@unlink(CACHEDIR . '/data_' . $key . '.php');
} else {
$cache_data = '<' . '?' . 'php if (!defined(\'ELK\')) die; if (' . (time() + $ttl) . ' < time()) $expired = true; else{$expired = false; $value = \'' . addcslashes($value, '\\\'') . '\';}';
// Write out the cache file, check that the cache write was successful; all the data must be written
// If it fails due to low diskspace, or other, remove the cache file
if (@file_put_contents(CACHEDIR . '/data_' . $key . '.php', $cache_data, LOCK_EX) !== strlen($cache_data)) {
@unlink(CACHEDIR . '/data_' . $key . '.php');
}
}
break;
}
if (function_exists('call_integration_hook')) {
call_integration_hook('cache_put_data', array($key, $value, $ttl));
}
if (isset($db_show_debug) && $db_show_debug === true) {
$cache_hits[$cache_count]['t'] = microtime(true) - $st;
}
}
/**
* Removes all expired items from the cache store
*
* @return boolean true on success, false on failure
**/
public function flushExpired()
{
$this->Logger->debug('Flush all expired called.');
eaccelerator_gc();
return true;
}
/**
* (non-PHPdoc)
* @see Cache::clear()
*/
public function clear()
{
return eaccelerator_gc();
}
function cache_put_data($key, $value, $ttl = 120)
{
global $boardurl, $sourcedir, $modSettings, $memcached;
global $cache_hits, $cache_count, $db_show_debug;
if (empty($modSettings['cache_enable']) && !empty($modSettings)) {
return;
}
$cache_count = isset($cache_count) ? $cache_count + 1 : 1;
if (isset($db_show_debug) && $db_show_debug === true) {
$cache_hits[$cache_count] = array('k' => $key, 'd' => 'put', 's' => $value === null ? 0 : strlen(serialize($value)));
$st = microtime();
}
$key = md5($boardurl . filemtime($sourcedir . '/Load.php')) . '-SMF-' . $key;
$value = $value === null ? null : serialize($value);
// The simple yet efficient memcached.
if (function_exists('memcache_set') && isset($modSettings['cache_memcached']) && trim($modSettings['cache_memcached']) != '') {
// Not connected yet?
if (empty($memcached)) {
get_memcached_server();
}
if (!$memcached) {
return;
}
memcache_set($memcached, $key, $value, 0, $ttl);
} elseif (function_exists('eaccelerator_put')) {
if (mt_rand(0, 10) == 1) {
eaccelerator_gc();
}
if ($value === null) {
@eaccelerator_rm($key);
} else {
eaccelerator_put($key, $value, $ttl);
}
} elseif (function_exists('mmcache_put')) {
if (mt_rand(0, 10) == 1) {
mmcache_gc();
}
if ($value === null) {
@mmcache_rm($key);
} else {
mmcache_put($key, $value, $ttl);
}
} elseif (function_exists('apc_store')) {
// An extended key is needed to counteract a bug in APC.
if ($value === null) {
apc_delete($key . 'smf');
} else {
apc_store($key . 'smf', $value, $ttl);
}
} elseif (function_exists('output_cache_put')) {
output_cache_put($key, $value);
}
if (isset($db_show_debug) && $db_show_debug === true) {
$cache_hits[$cache_count]['t'] = array_sum(explode(' ', microtime())) - array_sum(explode(' ', $st));
}
}
/**
* Perform cache garbage collection
*
* @return void
*/
function tidy()
{
eaccelerator_gc();
set_config('cache_last_gc', time(), true);
}
/**
* flush()
* Flush the entire cache.
*
* @param none
* @return mixed bool
* Returns TRUE
*/
function flush()
{
parent::flush();
if ($this->lock()) {
// Get lookup table to be able to keep track of bins
$lookup = $this->getLookup();
// If the lookup table is empty, remove lock and return
if (empty($lookup) || !is_array($lookup)) {
$this->unlock();
return TRUE;
}
// Cycle through keys and remove each entry from the cache
foreach ($lookup as $k => $expire) {
if ($expire != CACHE_PERMANENT && $expire <= time()) {
eaccelerator_rm($k);
unset($lookup[$k]);
}
}
// Resave the lookup table (even on failure)
$lookup = $this->setLookup($lookup);
// Remove lock
$this->unlock();
eaccelerator_gc();
}
return TRUE;
}
function gc()
{
eaccelerator_gc();
}
function cache_put_data($key, $value, $ttl = 120)
{
global $boardurl, $sourcedir, $modSettings, $memcached;
global $cache_hits, $cache_count, $db_show_debug, $cachedir;
if (empty($modSettings['cache_enable']) && !empty($modSettings)) {
return;
}
$cache_count = isset($cache_count) ? $cache_count + 1 : 1;
if (isset($db_show_debug) && $db_show_debug === true) {
$cache_hits[$cache_count] = array('k' => $key, 'd' => 'put', 's' => $value === null ? 0 : strlen(serialize($value)));
$st = microtime();
}
$key = md5($boardurl . filemtime($sourcedir . '/Load.php')) . '-SMF-' . strtr($key, ':', '-');
$value = $value === null ? null : serialize($value);
// The simple yet efficient memcached.
if (function_exists('memcache_set') && isset($modSettings['cache_memcached']) && trim($modSettings['cache_memcached']) != '') {
// Not connected yet?
if (empty($memcached)) {
get_memcached_server();
}
if (!$memcached) {
return;
}
memcache_set($memcached, $key, $value, 0, $ttl);
} elseif (function_exists('eaccelerator_put')) {
if (mt_rand(0, 10) == 1) {
eaccelerator_gc();
}
if ($value === null) {
@eaccelerator_rm($key);
} else {
eaccelerator_put($key, $value, $ttl);
}
} elseif (function_exists('mmcache_put')) {
if (mt_rand(0, 10) == 1) {
mmcache_gc();
}
if ($value === null) {
@mmcache_rm($key);
} else {
mmcache_put($key, $value, $ttl);
}
} elseif (function_exists('apc_store')) {
// An extended key is needed to counteract a bug in APC.
if ($value === null) {
apc_delete($key . 'smf');
} else {
apc_store($key . 'smf', $value, $ttl);
}
} elseif (function_exists('output_cache_put')) {
output_cache_put($key, $value);
} elseif (function_exists('xcache_set') && ini_get('xcache.var_size') > 0) {
if ($value === null) {
xcache_unset($key);
} else {
xcache_set($key, $value, $ttl);
}
} elseif (function_exists('fwrite')) {
if ($value === null) {
@unlink($cachedir . '/data_' . $key . '.php');
} else {
$fp = @fopen($cachedir . '/data_' . $key . '.php', 'w');
if ($fp) {
// Write the header.
@flock($fp, LOCK_EX);
fwrite($fp, '<' . '?' . 'php if (!defined(\'SMF\')) die; if (' . (time() + $ttl) . ' < time()) $expired = true; else{$expired = false; $value = \'' . addcslashes($value, '\\\'') . '\';}' . '?' . '>');
@flock($fp, LOCK_UN);
fclose($fp);
}
}
}
if (isset($db_show_debug) && $db_show_debug === true) {
$cache_hits[$cache_count]['t'] = array_sum(explode(' ', microtime())) - array_sum(explode(' ', $st));
}
}
/**
* Put data in the cache
*
* Adds data to whatever cache method we're using
*
* @param string $key the cache data identifier
* @param mixed $value the value to be stored
* @param int $ttl how long are we going to cache this data (in seconds)
* @return void
* @since 0.1.0
*/
function smfapi_cachePutData($key, $value, $ttl = 120)
{
global $boardurl, $sourcedir, $modSettings, $memcached;
global $cache_hits, $cache_count, $db_show_debug, $cachedir;
if (empty($modSettings['cache_enable']) && !empty($modSettings)) {
return;
}
$cache_count = isset($cache_count) ? $cache_count + 1 : 1;
if (isset($db_show_debug) && $db_show_debug === true) {
$cache_hits[$cache_count] = array('k' => $key, 'd' => 'put', 's' => $value === null ? 0 : strlen(serialize($value)));
$st = microtime();
}
$key = md5($boardurl . filemtime($sourcedir . '/Load.php')) . '-SMF-' . strtr($key, ':', '-');
$value = $value === null ? null : serialize($value);
// eAccelerator...
if (function_exists('eaccelerator_put')) {
if (mt_rand(0, 10) == 1) {
eaccelerator_gc();
}
if ($value === null) {
@eaccelerator_rm($key);
} else {
eaccelerator_put($key, $value, $ttl);
}
} elseif (function_exists('mmcache_put')) {
if (mt_rand(0, 10) == 1) {
mmcache_gc();
}
if ($value === null) {
@mmcache_rm($key);
} else {
mmcache_put($key, $value, $ttl);
}
} elseif (function_exists('apc_store')) {
// An extended key is needed to counteract a bug in APC.
if ($value === null) {
apc_delete($key . 'smf');
} else {
apc_store($key . 'smf', $value, $ttl);
}
} elseif (function_exists('output_cache_put')) {
output_cache_put($key, $value);
} elseif (function_exists('xcache_set') && ini_get('xcache.var_size') > 0) {
if ($value === null) {
xcache_unset($key);
} else {
xcache_set($key, $value, $ttl);
}
} else {
if ($value === null) {
@unlink($cachedir . '/data_' . $key . '.php');
} else {
$cache_data = '<' . '?' . 'php if (!defined(\'SMF\')) die; if (' . (time() + $ttl) . ' < time()) $expired = true; else{$expired = false; $value = \'' . addcslashes($value, '\\\'') . '\';}' . '?' . '>';
$fh = @fopen($cachedir . '/data_' . $key . '.php', 'w');
if ($fh) {
// write the file.
set_file_buffer($fh, 0);
flock($fh, LOCK_EX);
$cache_bytes = fwrite($fh, $cache_data);
flock($fh, LOCK_UN);
fclose($fh);
// check that the cache write was successful; all the data should be written
// if it fails due to low diskspace, remove the cache file
if ($cache_bytes != strlen($cache_data)) {
@unlink($cachedir . '/data_' . $key . '.php');
}
}
}
}
if (isset($db_show_debug) && $db_show_debug === true) {
$cache_hits[$cache_count]['t'] = array_sum(explode(' ', microtime())) - array_sum(explode(' ', $st));
}
return;
}
public function delete_expired()
{
eaccelerator_gc();
return TRUE;
}
/**
* Garbage collect stale sessions from the SessionHandler backend.
*
* @param integer $maxlifetime The maximum age of a session.
*
* @return boolean True on success, false otherwise.
*/
public function gc($maxlifetime = null)
{
eaccelerator_gc();
return true;
}
function expire()
{
return eaccelerator_gc();
}
