Code Coverage |
||||||||||
Lines |
Functions and Methods |
Classes and Traits |
||||||||
| Total | |
100.00% |
6 / 6 |
|
100.00% |
3 / 3 |
CRAP | |
100.00% |
1 / 1 |
| LogicException | |
100.00% |
6 / 6 |
|
100.00% |
3 / 3 |
3 | |
100.00% |
1 / 1 |
| __construct | |
100.00% |
1 / 1 |
|
100.00% |
1 / 1 |
1 | |||
| forForkFromWorkerProcess | |
100.00% |
4 / 4 |
|
100.00% |
1 / 1 |
1 | |||
| forWorkerWaitingOnItself | |
100.00% |
1 / 1 |
|
100.00% |
1 / 1 |
1 | |||
| 1 | <?php |
| 2 | |
| 3 | declare(strict_types=1); |
| 4 | |
| 5 | /** |
| 6 | * This file is part of fast-forward/fork. |
| 7 | * |
| 8 | * This source file is subject to the license bundled |
| 9 | * with this source code in the file LICENSE. |
| 10 | * |
| 11 | * @copyright Copyright (c) 2026 Felipe Sayão Lobato Abreu <github@mentordosnerds.com> |
| 12 | * @license https://opensource.org/licenses/MIT MIT License |
| 13 | * |
| 14 | * @see https://github.com/php-fast-forward/fork |
| 15 | * @see https://github.com/php-fast-forward |
| 16 | * @see https://datatracker.ietf.org/doc/html/rfc2119 |
| 17 | */ |
| 18 | |
| 19 | namespace FastForward\Fork\Exception; |
| 20 | |
| 21 | /** |
| 22 | * Represents logical contract violations detected during worker orchestration. |
| 23 | * |
| 24 | * This exception type is intended for scenarios in which the caller invokes the |
| 25 | * process management API in a way that is incompatible with the expected runtime |
| 26 | * lifecycle. Such failures indicate an invalid usage pattern rather than an |
| 27 | * invalid scalar argument value. |
| 28 | * |
| 29 | * Callers MUST treat this exception as a signal of incorrect control flow or |
| 30 | * invalid process-context usage. Library code SHOULD throw this exception only |
| 31 | * when the operation is structurally invalid for the current execution state. |
| 32 | */ |
| 33 | class LogicException extends \LogicException implements ForkExceptionInterface |
| 34 | { |
| 35 | /** |
| 36 | * Initializes the exception with a descriptive message. |
| 37 | * |
| 38 | * This constructor is private to enforce the use of named constructors for specific |
| 39 | * logic violation scenarios, ensuring that each exception instance is created with |
| 40 | * a clear and relevant message. |
| 41 | * |
| 42 | * @param string $message |
| 43 | */ |
| 44 | private function __construct(string $message) |
| 45 | { |
| 46 | parent::__construct($message); |
| 47 | } |
| 48 | |
| 49 | /** |
| 50 | * Creates an exception for attempts to fork from within a worker process. |
| 51 | * |
| 52 | * A worker process MUST NOT reuse a manager instance that belongs to a parent |
| 53 | * process context for creating nested workers. If nested process management is |
| 54 | * required, the worker SHOULD instantiate a new manager within its own process. |
| 55 | * |
| 56 | * @return self a new instance describing the invalid fork attempt |
| 57 | */ |
| 58 | public static function forForkFromWorkerProcess(): self |
| 59 | { |
| 60 | return new self( |
| 61 | 'Forking from a worker process is not supported by this manager instance. ' |
| 62 | . 'Create a new manager inside the worker to manage a nested process tree.', |
| 63 | ); |
| 64 | } |
| 65 | |
| 66 | /** |
| 67 | * Creates an exception for attempts by a worker to wait on itself. |
| 68 | * |
| 69 | * A worker MUST NOT attempt to block while waiting for its own termination, |
| 70 | * because such behavior would be logically invalid and would prevent correct |
| 71 | * lifecycle coordination. |
| 72 | * |
| 73 | * @param int $workerPid the process identifier of the worker attempting to wait on itself |
| 74 | * |
| 75 | * @return self a new instance describing the self-wait violation |
| 76 | */ |
| 77 | public static function forWorkerWaitingOnItself(int $workerPid): self |
| 78 | { |
| 79 | return new self(\sprintf('Worker %d cannot wait on itself.', $workerPid)); |
| 80 | } |
| 81 | } |