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Adding multihost - locking

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Adding Unit-Tests for it
This commit is contained in:
Philipp Holzer 2018-07-04 23:37:22 +02:00
parent b07dfbb03f
commit aac94d1d74
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GPG key ID: 58160D7D6AF942B6
22 changed files with 741 additions and 154 deletions
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31
src/Core/Lock/SemaphoreLockDriver.php
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@ -4,6 +4,8 @@ namespace Friendica\Core\Lock;
class SemaphoreLockDriver extends AbstractLockDriver
{
private static $semaphore = [];
public function __construct()
{
if (!function_exists('sem_get')) {
@ -42,10 +44,15 @@ class SemaphoreLockDriver extends AbstractLockDriver
*/
public function acquireLock($key, $timeout = 120)
{
$this->acquiredLocks[$key] = sem_get(self::semaphoreKey($key));
if ($this->acquiredLocks[$key]) {
return sem_acquire($this->acquiredLocks[$key], ($timeout == 0));
self::$semaphore[$key] = sem_get(self::semaphoreKey($key));
if (self::$semaphore[$key]) {
if (sem_acquire(self::$semaphore[$key], ($timeout == 0))) {
$this->markAcquire($key);
return true;
}
}
return false;
}
/**
@ -57,12 +64,24 @@ class SemaphoreLockDriver extends AbstractLockDriver
*/
public function releaseLock($key)
{
if (empty($this->acquiredLocks[$key])) {
if (empty(self::$semaphore[$key])) {
return false;
} else {
$success = @sem_release($this->acquiredLocks[$key]);
unset($this->acquiredLocks[$key]);
$success = @sem_release(self::$semaphore[$key]);
unset(self::$semaphore[$key]);
$this->markRelease($key);
return $success;
}
}
/**
* @brief Checks, if a key is currently locked to a process
*
* @param string $key The name of the lock
* @return bool
*/
public function isLocked($key)
{
return @sem_get(self::$semaphore[$key]) !== false;
}
}