/**
* Override the cache::construct method.
*
* This function gets overriden so that we can process any invalidation events if need be.
* If the definition doesn't have any invalidation events then this occurs exactly as it would for the cache class.
* Otherwise we look at the last invalidation time and then check the invalidation data for events that have occured
* between then now.
*
* You should not call this method from your code, instead you should use the cache::make methods.
*
* @param cache_definition $definition
* @param cache_store $store
* @param cache_loader|cache_data_source $loader
*/
public function __construct(cache_definition $definition, cache_store $store, $loader = null)
{
// First up copy the loadeduserid to the current user id.
$this->currentuserid = self::$loadeduserid;
parent::__construct($definition, $store, $loader);
// This will trigger check tracked user. If this gets removed a call to that will need to be added here in its place.
$this->set(self::LASTACCESS, cache::now());
if ($definition->has_invalidation_events()) {
$lastinvalidation = $this->get('lastsessioninvalidation');
if ($lastinvalidation === false) {
// This is a new session, there won't be anything to invalidate. Set the time of the last invalidation and
// move on.
$this->set('lastsessioninvalidation', cache::now());
return;
} else {
if ($lastinvalidation == cache::now()) {
// We've already invalidated during this request.
return;
}
}
// Get the event invalidation cache.
$cache = cache::make('core', 'eventinvalidation');
$events = $cache->get_many($definition->get_invalidation_events());
$todelete = array();
$purgeall = false;
// Iterate the returned data for the events.
foreach ($events as $event => $keys) {
if ($keys === false) {
// No data to be invalidated yet.
continue;
}
// Look at each key and check the timestamp.
foreach ($keys as $key => $timestamp) {
// If the timestamp of the event is more than or equal to the last invalidation (happened between the last
// invalidation and now)then we need to invaliate the key.
if ($timestamp >= $lastinvalidation) {
if ($key === 'purged') {
$purgeall = true;
break;
} else {
$todelete[] = $key;
}
}
}
}
if ($purgeall) {
$this->purge();
} else {
if (!empty($todelete)) {
$todelete = array_unique($todelete);
$this->delete_many($todelete);
}
}
// Set the time of the last invalidation.
$this->set('lastsessioninvalidation', cache::now());
}
}
/**
*
* @param string $id page id
* @param string $file source file for cache
* @param string $mode input mode
*/
public function __construct($id, $file, $mode)
{
if ($id) {
$this->page = $id;
}
$this->file = $file;
$this->mode = $mode;
parent::__construct($file . $_SERVER['HTTP_HOST'] . $_SERVER['SERVER_PORT'], '.' . $mode);
}
/**
* Override the cache::construct method.
*
* This function gets overriden so that we can process any invalidation events if need be.
* If the definition doesn't have any invalidation events then this occurs exactly as it would for the cache class.
* Otherwise we look at the last invalidation time and then check the invalidation data for events that have occured
* between then now.
*
* You should not call this method from your code, instead you should use the cache::make methods.
*
* @param cache_definition $definition
* @param cache_store $store
* @param cache_loader|cache_data_source $loader
* @return void
*/
public function __construct(cache_definition $definition, cache_store $store, $loader = null)
{
parent::__construct($definition, $store, $loader);
if ($definition->has_invalidation_events()) {
$lastinvalidation = $this->get('lastsessioninvalidation');
if ($lastinvalidation === false) {
// This is a new session, there won't be anything to invalidate. Set the time of the last invalidation and
// move on.
$this->set('lastsessioninvalidation', cache::now());
return;
} else {
if ($lastinvalidation == cache::now()) {
// We've already invalidated during this request.
return;
}
}
// Get the event invalidation cache.
$cache = cache::make('core', 'eventinvalidation');
$events = $cache->get_many($definition->get_invalidation_events());
$todelete = array();
// Iterate the returned data for the events.
foreach ($events as $event => $keys) {
if ($keys === false) {
// No data to be invalidated yet.
continue;
}
// Look at each key and check the timestamp.
foreach ($keys as $key => $timestamp) {
// If the timestamp of the event is more than or equal to the last invalidation (happened between the last
// invalidation and now)then we need to invaliate the key.
if ($timestamp >= $lastinvalidation) {
$todelete[] = $key;
}
}
}
if (!empty($todelete)) {
$todelete = array_unique($todelete);
$this->delete_many($todelete);
}
// Set the time of the last invalidation.
$this->set('lastsessioninvalidation', cache::now());
}
}
public function __construct($config)
{
$this->config_data = $config;
parent::__construct($config);
$this->config($config);
}
public function __construct()
{
$this->host = new Memcache();
$this->host->pconnect(defined('MEMCACHE_HOST') ? MEMCACHE_HOST : 'localhost');
parent::__construct();
}