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Mutex WIP.

tags/2.0.0-beta
resurtm 12 years ago
parent
b98a1236bb
commit
733dbbfb8b
10 changed files with 254 additions and 426 deletions
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  1. 14
      extensions/mutex/yii/mutex/DbMutex.php
  2. 43
      extensions/mutex/yii/mutex/FileMutex.php
  3. 14
      extensions/mutex/yii/mutex/MssqlMutex.php
  4. 73
      extensions/mutex/yii/mutex/Mutex.php
  5. 25
      extensions/mutex/yii/mutex/MysqlMutex.php
  6. 89
      extensions/mutex/yii/mutex/cache/Mutex.php

14
extensions/mutex/yii/mutex/db/Mutex.php → extensions/mutex/yii/mutex/DbMutex.php
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@ -5,7 +5,7 @@
* @license http://www.yiiframework.com/license/
*/
namespace yii\mutex\db;
namespace yii\mutex;
use Yii;
use yii\db\Connection;
@ -15,7 +15,7 @@ use yii\base\InvalidConfigException;
* @author resurtm <resurtm@gmail.com>
* @since 2.0
*/
abstract class Mutex extends \yii\mutex\Mutex
abstract class DbMutex extends Mutex
{
/**
* @var Connection|string the DB connection object or the application component ID of the DB connection.
@ -38,14 +38,4 @@ abstract class Mutex extends \yii\mutex\Mutex
throw new InvalidConfigException('Mutex::db must be either a DB connection instance or the application component ID of a DB connection.');
}
}
/**
* This method should be extended by concrete mutex implementations. Returns whether current mutex
* implementation can be used in a distributed environment.
* @return boolean whether current mutex implementation can be used in a distributed environment.
*/
public function getIsDistributed()
{
return true;
}
}

43
extensions/mutex/yii/mutex/unix/Mutex.php → extensions/mutex/yii/mutex/FileMutex.php
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@ -5,7 +5,7 @@
* @license http://www.yiiframework.com/license/
*/
namespace yii\mutex\unix;
namespace yii\mutex;
use Yii;
use yii\base\InvalidConfigException;
@ -14,9 +14,14 @@ use yii\base\InvalidConfigException;
* @author resurtm <resurtm@gmail.com>
* @since 2.0
*/
class Mutex extends \yii\mutex\Mutex
class FileMutex extends Mutex
{
/**
* @var string the directory to store mutex files. You may use path alias here.
* If not set, it will use the "mutex" subdirectory under the application runtime path.
*/
public $mutexPath = '@runtime/mutex';
/**
* @var resource[] stores all opened lock files. Keys are lock names and values are file handles.
*/
private $_files = array();
@ -30,7 +35,11 @@ class Mutex extends \yii\mutex\Mutex
public function init()
{
if (stripos(php_uname('s'), 'win') === 0) {
throw new InvalidConfigException('');
throw new InvalidConfigException('FileMutex does not have MS Windows operating system support.');
}
$this->mutexPath = Yii::getAlias($this->mutexPath);
if (!is_dir($this->mutexPath)) {
mkdir($this->mutexPath, 0777, true);
}
}
@ -40,9 +49,9 @@ class Mutex extends \yii\mutex\Mutex
* @param integer $timeout to wait for lock to become released.
* @return boolean acquiring result.
*/
protected function acquire($name, $timeout = 0)
protected function acquireLock($name, $timeout = 0)
{
$file = fopen(Yii::$app->getRuntimePath() . '/mutex.' . md5($name) . '.lock', 'w+');
$file = fopen($this->mutexPath . '/' . md5($name) . '.lock', 'w+');
if ($file === false) {
return false;
}
@ -64,7 +73,7 @@ class Mutex extends \yii\mutex\Mutex
* @param string $name of the lock to be released.
* @return boolean release result.
*/
protected function release($name)
protected function releaseLock($name)
{
if (!isset($this->_files[$name]) || !flock($this->_files[$name], LOCK_UN)) {
return false;
@ -74,26 +83,4 @@ class Mutex extends \yii\mutex\Mutex
return true;
}
}
/**
* This method may optionally be extended by concrete mutex implementations. Checks whether lock has been
* already acquired by given name.
* @param string $name of the lock to be released.
* @return null|boolean whether lock has been already acquired. Returns `null` in case this feature
* is not supported by concrete mutex implementation.
*/
protected function getIsAcquired($name)
{
return false;
}
/**
* This method should be extended by concrete mutex implementations. Returns whether current mutex
* implementation can be used in a distributed environment.
* @return boolean whether current mutex implementation can be used in a distributed environment.
*/
public function getIsDistributed()
{
return false;
}
}

14
extensions/mutex/yii/mutex/db/mssql/Mutex.php → extensions/mutex/yii/mutex/MssqlMutex.php
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@ -5,7 +5,7 @@
* @license http://www.yiiframework.com/license/
*/
namespace yii\mutex\db\mssql;
namespace yii\mutex;
use Yii;
use yii\base\InvalidConfigException;
@ -14,7 +14,7 @@ use yii\base\InvalidConfigException;
* @author resurtm <resurtm@gmail.com>
* @since 2.0
*/
class Mutex extends \yii\mutex\db\Mutex
class MssqlMutex extends Mutex
{
/**
* Initializes Microsoft SQL Server specific mutex component implementation.
@ -25,7 +25,7 @@ class Mutex extends \yii\mutex\db\Mutex
parent::init();
$driverName = $this->db->driverName;
if ($driverName !== 'sqlsrv' && $driverName !== 'dblib' && $driverName !== 'mssql') {
throw new InvalidConfigException('');
throw new InvalidConfigException('In order to use MssqlMutex connection must be configured to use MS SQL Server database.');
}
}
@ -34,10 +34,10 @@ class Mutex extends \yii\mutex\db\Mutex
* @param string $name of the lock to be acquired.
* @param integer $timeout to wait for lock to become released.
* @return boolean acquiring result.
* @throws \BadMethodCallException
* @throws \BadMethodCallException not implemented yet.
* @see http://msdn.microsoft.com/en-us/library/ms189823.aspx
*/
protected function acquire($name, $timeout = 0)
protected function acquireLock($name, $timeout = 0)
{
throw new \BadMethodCallException('Not implemented yet.');
}
@ -46,10 +46,10 @@ class Mutex extends \yii\mutex\db\Mutex
* This method should be extended by concrete mutex implementations. Releases lock by given name.
* @param string $name of the lock to be released.
* @return boolean release result.
* @throws \BadMethodCallException
* @throws \BadMethodCallException not implemented yet.
* @see http://msdn.microsoft.com/en-us/library/ms178602.aspx
*/
protected function release($name)
protected function releaseLock($name)
{
throw new \BadMethodCallException('Not implemented yet.');
}

73
extensions/mutex/yii/mutex/Mutex.php
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@ -18,7 +18,8 @@ abstract class Mutex extends Component
{
/**
* @var boolean whether all locks acquired in this process (i.e. local locks) must be released automagically
* before finishing script execution. Defaults to true. Setting this property to true
* before finishing script execution. Defaults to true. Setting this property to true means that all locks
* acquire in this process must be released in any case (regardless any kind of errors or exceptions).
*/
public $autoRelease = true;
/**
@ -33,14 +34,13 @@ abstract class Mutex extends Component
public function init()
{
if ($this->autoRelease) {
$references = new stdClass();
$references->mutex = $this;
$references->locks = &$this->_locks;
register_shutdown_function(function ($refs) {
foreach ($refs->locks as $lock) {
$refs->mutex->release($lock);
$mutex = $this;
$locks = &$this->_locks;
register_shutdown_function(function () use ($mutex, &$locks) {
foreach ($locks as $lock) {
$mutex->release($lock);
}
}, $references);
});
}
}
@ -50,9 +50,9 @@ abstract class Mutex extends Component
* false immediately in case lock was already acquired.
* @return boolean lock acquiring result.
*/
public function acquireLock($name, $timeout = 0)
public function acquire($name, $timeout = 0)
{
if ($this->acquire($name, $timeout)) {
if ($this->acquireLock($name, $timeout)) {
$this->_locks[] = $name;
return true;
} else {
@ -65,9 +65,9 @@ abstract class Mutex extends Component
* @param string $name of the lock to be released. This lock must be already created.
* @return boolean lock release result: false in case named lock was not found..
*/
public function releaseLock($name)
public function release($name)
{
if ($this->release($name)) {
if ($this->releaseLock($name)) {
$index = array_search($name, $this->_locks);
if ($index !== false) {
unset($this->_locks[$index]);
@ -79,62 +79,17 @@ abstract class Mutex extends Component
}
/**
* Checks whether named lock was already opened.
* @param string $name of the lock to be checked. This lock must be already created.
* @return boolean|null whether named lock was already opened. Returns `null` value in case concrete
* mutex implementation does not support this operation.
*/
public function getIsLockAcquired($name)
{
if (in_array($name, $this->_locks)) {
return true;
} else {
return $this->getIsAcquired($name);
}
}
/**
* Checks whether given lock is local. In other words local lock means that it was opened in the current
* PHP process.
* @param string $name of the lock to be checked. This lock must be already created.
* @return boolean whether named lock was locally acquired.
*/
public function getIsLockLocal($name)
{
return in_array($name, $this->_locks);
}
/**
* This method should be extended by concrete mutex implementations. Acquires lock by given name.
* @param string $name of the lock to be acquired.
* @param integer $timeout to wait for lock to become released.
* @return boolean acquiring result.
*/
abstract protected function acquire($name, $timeout = 0);
abstract protected function acquireLock($name, $timeout = 0);
/**
* This method should be extended by concrete mutex implementations. Releases lock by given name.
* @param string $name of the lock to be released.
* @return boolean release result.
*/
abstract protected function release($name);
/**
* This method may optionally be extended by concrete mutex implementations. Checks whether lock has been
* already acquired by given name.
* @param string $name of the lock to be released.
* @return null|boolean whether lock has been already acquired. Returns `null` in case this feature
* is not supported by concrete mutex implementation.
*/
protected function getIsAcquired($name)
{
return null;
}
/**
* This method should be extended by concrete mutex implementations. Returns whether current mutex
* implementation can be used in a distributed environment.
* @return boolean whether current mutex implementation can be used in a distributed environment.
*/
abstract public function getIsDistributed();
abstract protected function releaseLock($name);
}

25
extensions/mutex/yii/mutex/db/mysql/Mutex.php → extensions/mutex/yii/mutex/MysqlMutex.php
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@ -5,7 +5,7 @@
* @license http://www.yiiframework.com/license/
*/
namespace yii\mutex\db\mysql;
namespace yii\mutex;
use Yii;
use yii\base\InvalidConfigException;
@ -14,7 +14,7 @@ use yii\base\InvalidConfigException;
* @author resurtm <resurtm@gmail.com>
* @since 2.0
*/
class Mutex extends \yii\mutex\db\Mutex
class MysqlMutex extends Mutex
{
/**
* Initializes MySQL specific mutex component implementation.
@ -24,7 +24,7 @@ class Mutex extends \yii\mutex\db\Mutex
{
parent::init();
if ($this->db->driverName !== 'mysql') {
throw new InvalidConfigException('');
throw new InvalidConfigException('In order to use MysqlMutex connection must be configured to use MySQL database.');
}
}
@ -35,7 +35,7 @@ class Mutex extends \yii\mutex\db\Mutex
* @return boolean acquiring result.
* @see http://dev.mysql.com/doc/refman/5.0/en/miscellaneous-functions.html#function_get-lock
*/
protected function acquire($name, $timeout = 0)
protected function acquireLock($name, $timeout = 0)
{
return (boolean)$this->db
->createCommand('SELECT GET_LOCK(:name, :timeout)', array(':name' => $name, ':timeout' => $timeout))
@ -48,25 +48,10 @@ class Mutex extends \yii\mutex\db\Mutex
* @return boolean release result.
* @see http://dev.mysql.com/doc/refman/5.0/en/miscellaneous-functions.html#function_release-lock
*/
protected function release($name)
protected function releaseLock($name)
{
return (boolean)$this->db
->createCommand('SELECT RELEASE_LOCK(:name)', array(':name' => $name))
->queryScalar();
}
/**
* This method may optionally be extended by concrete mutex implementations. Checks whether lock has been
* already acquired by given name.
* @param string $name of the lock to be released.
* @return null|boolean whether lock has been already acquired. Returns `null` in case this feature
* is not supported by concrete mutex implementation.
* @see http://dev.mysql.com/doc/refman/5.0/en/miscellaneous-functions.html#function_is-free-lock
*/
protected function getIsAcquired($name)
{
return (boolean)$this->db
->createCommand('SELECT IS_FREE_LOCK(:name)', array(':name' => $name))
->queryScalar();
}
}

89
extensions/mutex/yii/mutex/cache/Mutex.php vendored
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@ -1,89 +0,0 @@
<?php
/**
* @link http://www.yiiframework.com/
* @copyright Copyright (c) 2008 Yii Software LLC
* @license http://www.yiiframework.com/license/
*/
namespace yii\mutex\cache;
use Yii;
use yii\base\InvalidConfigException;
use yii\caching\Cache;
use yii\caching\DbCache;
use yii\caching\MemCache;
/**
* @author resurtm <resurtm@gmail.com>
* @since 2.0
*/
class Mutex extends \yii\mutex\Mutex
{
/**
* @var Cache|string the cache object or the application component ID of the cache object.
* The messages data will be cached using this cache object. Note, this property has meaning only
* in case [[cachingDuration]] set to non-zero value.
* After the Mutex object is created, if you want to change this property, you should only assign
* it with a cache object.
*/
public $cache = 'cache';
/**
* Initializes the DbMessageSource component. Configured [[cache]] component will be initialized.
* @throws InvalidConfigException if [[cache]] is invalid.
*/
public function init()
{
parent::init();
if (is_string($this->cache)) {
$this->cache = Yii::$app->getComponent($this->cache);
}
if (!$this->cache instanceof Cache) {
throw new InvalidConfigException('Mutex::cache must be either a cache object or the application component ID of the cache object.');
}
}
/**
* This method should be extended by concrete mutex implementations. Acquires lock by given name.
* @param string $name of the lock to be acquired.
* @param integer $timeout to wait for lock to become released.
* @return boolean acquiring result.
*/
protected function acquire($name, $timeout = 0)
{
}
/**
* This method should be extended by concrete mutex implementations. Releases lock by given name.
* @param string $name of the lock to be released.
* @return boolean release result.
*/
protected function release($name)
{
return $this->cache->delete("mutex.{$name}");
}
/**
* This method may optionally be extended by concrete mutex implementations. Checks whether lock has been
* already acquired by given name.
* @param string $name of the lock to be released.
* @return null|boolean whether lock has been already acquired. Returns `null` in case this feature
* is not supported by concrete mutex implementation.
*/
protected function getIsAcquired($name)
{
}
/**
* This method should be extended by concrete mutex implementations. Returns whether current mutex
* implementation can be used in a distributed environment.
* @return boolean whether current mutex implementation can be used in a distributed environment.
*/
public function getIsDistributed()
{
return $this->cache instanceof DbCache || $this->cache instanceof MemCache;
}
}
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