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update PEAR

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This commit is contained in:
Ibnu Maksum
2023-10-05 16:55:44 +07:00
parent 1861358415
commit 071df91de0
64 changed files with 3872 additions and 2100 deletions
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163
system/autoload/PEAR2/Cache/SHM/Adapter/APC.php
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@ -1,18 +1,19 @@
<?php
/**
* ~~summary~~
*
* ~~description~~
*
* Wrapper for shared memory and locking functionality across different extensions.
*
* Allows you to share data across requests as long as the PHP process is running. One of APC or WinCache is required to accomplish this, with other extensions being potentially pluggable as adapters.
*
* PHP version 5
*
*
* @category Caching
* @package PEAR2_Cache_SHM
* @author Vasil Rangelov <boen.robot@gmail.com>
* @copyright 2011 Vasil Rangelov
* @license http://www.gnu.org/copyleft/lesser.html LGPL License 2.1
* @version 0.1.3
* @version 0.2.0
* @link http://pear2.php.net/PEAR2_Cache_SHM
*/
/**
@ -32,7 +33,7 @@ use ArrayObject;
/**
* Shared memory adapter for the APC extension.
*
*
* @category Caching
* @package PEAR2_Cache_SHM
* @author Vasil Rangelov <boen.robot@gmail.com>
@ -42,32 +43,39 @@ use ArrayObject;
class APC extends SHM
{
/**
* @var string ID of the current storage.
* ID of the current storage.
*
* @var string
*/
protected $persistentId;
/**
* List of persistent IDs.
*
*
* A list of persistent IDs within the current request (as keys) with an int
* (as a value) specifying the number of instances in the current request.
* Used as an attempt to ensure implicit lock releases even on errors in the
* critical sections, since APC doesn't have an actual locking function.
* @var array
*
* @var array
*/
protected static $requestInstances = array();
/**
* @var array Array of lock names (as values) for each persistent ID (as
* key) obtained during the current request.
* Array of lock names for each persistent ID.
*
* Array of lock names (as values) for each persistent ID (as key) obtained
* during the current request.
*
* @var array
*/
protected static $locksBackup = array();
/**
* Creates a new shared memory storage.
*
* Estabilishes a separate persistent storage.
*
*
* Establishes a separate persistent storage.
*
* @param string $persistentId The ID for the storage. The storage will be
* reused if it exists, or created if it doesn't exist. Data and locks
* are namespaced by this ID.
@ -87,35 +95,36 @@ class APC extends SHM
true
);
}
/**
* Checks if the adapter meets its requirements.
*
*
* @return bool TRUE on success, FALSE on failure.
*/
public static function isMeetingRequirements()
{
return extension_loaded('apc')
&& version_compare(phpversion('apc'), '3.0.13', '>=')
&& version_compare(phpversion('apc'), '3.1.1', '>=')
&& ini_get('apc.enabled')
&& ('cli' !== PHP_SAPI || ini_get('apc.enable_cli'));
}
/**
* Releases all locks in a storage.
*
*
* This function is not meant to be used directly. It is implicitly called
* by the the destructor and as a shutdown function when the request ends.
* One of these calls ends up releasing any unreleased locks obtained
* during the request. A lock is also implicitly released as soon as there
* are no objects left in the current request using the same persistent ID.
*
*
* @param string $internalPersistentId The internal persistent ID, the locks
* of which are being released.
* @param bool $isAtShutdown Whether the function was executed at
* shutdown.
*
*
* @return void
*
* @internal
*/
public static function releaseLocks($internalPersistentId, $isAtShutdown)
@ -127,7 +136,7 @@ class APC extends SHM
}
}
}
/**
* Releases any locks obtained by this instance as soon as there are no more
* references to the object's persistent ID.
@ -137,18 +146,18 @@ class APC extends SHM
static::$requestInstances[$this->persistentId]--;
static::releaseLocks($this->persistentId, false);
}
/**
* Obtains a named lock.
*
*
* @param string $key Name of the key to obtain. Note that $key may
* repeat for each distinct $persistentId.
* @param double $timeout If the lock can't be immediatly obtained, the
* @param double $timeout If the lock can't be immediately obtained, the
* script will block for at most the specified amount of seconds.
* Setting this to 0 makes lock obtaining non blocking, and setting it
* to NULL makes it block without a time limit.
*
*
* @return bool TRUE on success, FALSE on failure.
*/
public function lock($key, $timeout = null)
@ -164,13 +173,13 @@ class APC extends SHM
static::$locksBackup[$this->persistentId] = $key;
return true;
}
/**
* Releases a named lock.
*
*
* @param string $key Name of the key to release. Note that $key may
* repeat for each distinct $persistentId.
*
*
* @return bool TRUE on success, FALSE on failure.
*/
public function unlock($key)
@ -178,69 +187,71 @@ class APC extends SHM
$lock = $this->persistentId . 'l ' . $key;
$success = apc_delete($lock);
if ($success) {
unset(static::$locksBackup[$this->persistentId][array_search(
$key,
static::$locksBackup[$this->persistentId],
true
)]);
unset(
static::$locksBackup[$this->persistentId][array_search(
$key,
static::$locksBackup[$this->persistentId],
true
)]
);
return true;
}
return false;
}
/**
* Checks if a specified key is in the storage.
*
*
* @param string $key Name of key to check.
*
* @return bool TRUE if the key is in the storage, FALSE otherwise.
*
* @return bool TRUE if the key is in the storage, FALSE otherwise.
*/
public function exists($key)
{
return apc_exists($this->persistentId . 'd ' . $key);
}
/**
* Adds a value to the shared memory storage.
*
*
* Adds a value to the storage if it doesn't exist, or fails if it does.
*
*
* @param string $key Name of key to associate the value with.
* @param mixed $value Value for the specified key.
* @param int $ttl Seconds to store the value. If set to 0 indicates no
* time limit.
*
*
* @return bool TRUE on success, FALSE on failure.
*/
public function add($key, $value, $ttl = 0)
{
return apc_add($this->persistentId . 'd ' . $key, $value, $ttl);
}
/**
* Sets a value in the shared memory storage.
*
*
* Adds a value to the storage if it doesn't exist, overwrites it otherwise.
*
*
* @param string $key Name of key to associate the value with.
* @param mixed $value Value for the specified key.
* @param int $ttl Seconds to store the value. If set to 0 indicates no
* time limit.
*
*
* @return bool TRUE on success, FALSE on failure.
*/
public function set($key, $value, $ttl = 0)
{
return apc_store($this->persistentId . 'd ' . $key, $value, $ttl);
}
/**
* Gets a value from the shared memory storage.
*
*
* Gets the current value, or throws an exception if it's not stored.
*
*
* @param string $key Name of key to get the value of.
*
*
* @return mixed The current value of the specified key.
*/
public function get($key)
@ -260,29 +271,29 @@ class APC extends SHM
}
throw new SHM\InvalidArgumentException('No such key in cache', 101);
}
/**
* Deletes a value from the shared memory storage.
*
*
* @param string $key Name of key to delete.
*
*
* @return bool TRUE on success, FALSE on failure.
*/
public function delete($key)
{
return apc_delete($this->persistentId . 'd ' . $key);
}
/**
* Increases a value from the shared memory storage.
*
*
* Increases a value from the shared memory storage. Unlike a plain
* set($key, get($key)+$step) combination, this function also implicitly
* performs locking.
*
*
* @param string $key Name of key to increase.
* @param int $step Value to increase the key by.
*
*
* @return int The new value.
*/
public function inc($key, $step = 1)
@ -300,17 +311,17 @@ class APC extends SHM
}
return $newValue;
}
/**
* Decreases a value from the shared memory storage.
*
*
* Decreases a value from the shared memory storage. Unlike a plain
* set($key, get($key)-$step) combination, this function also implicitly
* performs locking.
*
*
* @param string $key Name of key to decrease.
* @param int $step Value to decrease the key by.
*
*
* @return int The new value.
*/
public function dec($key, $step = 1)
@ -331,27 +342,27 @@ class APC extends SHM
/**
* Sets a new value if a key has a certain value.
*
*
* Sets a new value if a key has a certain value. This function only works
* when $old and $new are longs.
*
*
* @param string $key Key of the value to compare and set.
* @param int $old The value to compare the key against.
* @param int $new The value to set the key to.
*
* @return bool TRUE on success, FALSE on failure.
*
* @return bool TRUE on success, FALSE on failure.
*/
public function cas($key, $old, $new)
{
return apc_cas($this->persistentId . 'd ' . $key, $old, $new);
}
/**
* Clears the persistent storage.
*
*
* Clears the persistent storage, i.e. removes all keys. Locks are left
* intact.
*
*
* @return void
*/
public function clear()
@ -366,18 +377,18 @@ class APC extends SHM
apc_delete($key);
}
}
/**
* Retrieve an external iterator
*
*
* Returns an external iterator.
*
*
* @param string|null $filter A PCRE regular expression.
* Only matching keys will be iterated over.
* Setting this to NULL matches all keys of this instance.
* @param bool $keysOnly Whether to return only the keys,
* or return both the keys and values.
*
*
* @return ArrayObject An array with all matching keys as array keys,
* and values as array values. If $keysOnly is TRUE, the array keys are
* numeric, and the array values are key names.