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| __construct | 100.00% | 1 / 1 | 100.00% | 1 / 1 | 1 | ||
| lockStatement | n/a | 0 / 0 | n/a | 0 / 0 | 0 | ||
| unlockStatement | n/a | 0 / 0 | n/a | 0 / 0 | 0 | ||
| withLock | 100.00% | 3 / 3 | 100.00% | 1 / 1 | 1 | ||
| 18 | abstract class SqlLock implements Lock | |
| 19 | { | |
| 20 | /** | |
| 21 | * @param SqlConnection $connection | |
| 22 | */ | |
| 23 | public function __construct(protected readonly SqlConnection $connection) {} | |
| 24 | ||
| 25 | /** | |
| 26 | * The SQL that acquires the dialect's lock. | |
| 27 | * | |
| 28 | * The lock name never appears in this SQL — it is bound as a parameter | |
| 29 | * by {@see withLock()}. | |
| 30 | * | |
| 31 | * @return string | |
| 32 | */ | |
| 33 | abstract protected function lockStatement(): string; | |
| 34 | ||
| 35 | /** | |
| 36 | * The SQL that releases the dialect's lock. | |
| 37 | * | |
| 38 | * @return string | |
| 39 | */ | |
| 40 | abstract protected function unlockStatement(): string; | |
| 41 | ||
| 42 | /** | |
| 43 | * Run the callback while holding the named session-level lock. | |
| 44 | * | |
| 45 | * @template TReturn | |
| 46 | * | |
| 47 | * @param callable(): TReturn $callback | |
| 48 | * @param string $name | |
| 49 | * @return TReturn | |
| 50 | * @throws \Throwable | |
| 51 | */ | |
| 52 | #[\Override] | |
| 53 | final public function withLock(callable $callback, string $name): mixed | |
| 54 | { | |
| 55 | // The lock statement runs with the name bound (no interpolation); a | |
| 56 | // failure to acquire must surface as an exception, not a silent | |
| 57 | // no-lock run. | |
| 58 | $this->connection->statement($this->lockStatement(), [$name]); | |
| 59 | try { | |
| 60 | return $callback(); | |
| 61 | } finally { | |
| 62 | $this->connection->statement($this->unlockStatement(), [$name]); | |
| 63 | } | |
| 64 | } | |
| 65 | } |