Mercurial > hg > isophonics-drupal-site
comparison vendor/symfony/console/Command/LockableTrait.php @ 14:1fec387a4317
Update Drupal core to 8.5.2 via Composer
author | Chris Cannam |
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date | Mon, 23 Apr 2018 09:46:53 +0100 |
parents | 4c8ae668cc8c |
children |
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13:5fb285c0d0e3 | 14:1fec387a4317 |
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11 | 11 |
12 namespace Symfony\Component\Console\Command; | 12 namespace Symfony\Component\Console\Command; |
13 | 13 |
14 use Symfony\Component\Console\Exception\LogicException; | 14 use Symfony\Component\Console\Exception\LogicException; |
15 use Symfony\Component\Console\Exception\RuntimeException; | 15 use Symfony\Component\Console\Exception\RuntimeException; |
16 use Symfony\Component\Filesystem\LockHandler; | 16 use Symfony\Component\Lock\Factory; |
17 use Symfony\Component\Lock\Lock; | |
18 use Symfony\Component\Lock\Store\FlockStore; | |
19 use Symfony\Component\Lock\Store\SemaphoreStore; | |
17 | 20 |
18 /** | 21 /** |
19 * Basic lock feature for commands. | 22 * Basic lock feature for commands. |
20 * | 23 * |
21 * @author Geoffrey Brier <geoffrey.brier@gmail.com> | 24 * @author Geoffrey Brier <geoffrey.brier@gmail.com> |
22 */ | 25 */ |
23 trait LockableTrait | 26 trait LockableTrait |
24 { | 27 { |
25 private $lockHandler; | 28 /** @var Lock */ |
29 private $lock; | |
26 | 30 |
27 /** | 31 /** |
28 * Locks a command. | 32 * Locks a command. |
29 * | 33 * |
30 * @return bool | 34 * @return bool |
31 */ | 35 */ |
32 private function lock($name = null, $blocking = false) | 36 private function lock($name = null, $blocking = false) |
33 { | 37 { |
34 if (!class_exists(LockHandler::class)) { | 38 if (!class_exists(SemaphoreStore::class)) { |
35 throw new RuntimeException('To enable the locking feature you must install the symfony/filesystem component.'); | 39 throw new RuntimeException('To enable the locking feature you must install the symfony/lock component.'); |
36 } | 40 } |
37 | 41 |
38 if (null !== $this->lockHandler) { | 42 if (null !== $this->lock) { |
39 throw new LogicException('A lock is already in place.'); | 43 throw new LogicException('A lock is already in place.'); |
40 } | 44 } |
41 | 45 |
42 $this->lockHandler = new LockHandler($name ?: $this->getName()); | 46 if (SemaphoreStore::isSupported($blocking)) { |
47 $store = new SemaphoreStore(); | |
48 } else { | |
49 $store = new FlockStore(); | |
50 } | |
43 | 51 |
44 if (!$this->lockHandler->lock($blocking)) { | 52 $this->lock = (new Factory($store))->createLock($name ?: $this->getName()); |
45 $this->lockHandler = null; | 53 if (!$this->lock->acquire($blocking)) { |
54 $this->lock = null; | |
46 | 55 |
47 return false; | 56 return false; |
48 } | 57 } |
49 | 58 |
50 return true; | 59 return true; |
53 /** | 62 /** |
54 * Releases the command lock if there is one. | 63 * Releases the command lock if there is one. |
55 */ | 64 */ |
56 private function release() | 65 private function release() |
57 { | 66 { |
58 if ($this->lockHandler) { | 67 if ($this->lock) { |
59 $this->lockHandler->release(); | 68 $this->lock->release(); |
60 $this->lockHandler = null; | 69 $this->lock = null; |
61 } | 70 } |
62 } | 71 } |
63 } | 72 } |