Lots of changes, implemented the base usage. Beware of bugs and unfinished states
This commit is contained in:
parent
0c23fdfac2
commit
f20551857b
27 changed files with 3045 additions and 71 deletions
684
src/TamerLib/tm.php
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684
src/TamerLib/tm.php
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<?php
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/** @noinspection PhpMissingFieldTypeInspection */
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namespace TamerLib;
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use Closure;
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use Exception;
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use InvalidArgumentException;
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use LogLib\Log;
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use Opis\Closure\SerializableClosure;
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use Redis;
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use RedisException;
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use RuntimeException;
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use TamerLib\Classes\AdaptiveSleep;
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use TamerLib\Classes\JobManager;
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use TamerLib\Classes\RedisServer;
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use TamerLib\Classes\WorkerSupervisor;
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use TamerLib\Enums\EncodingType;
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use TamerLib\Enums\JobStatus;
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use TamerLib\Enums\JobType;
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use TamerLib\Enums\TamerMode;
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use TamerLib\Exceptions\JobNotFoundException;
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use TamerLib\Exceptions\NoAvailablePortException;
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use TamerLib\Exceptions\ServerException;
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use TamerLib\Exceptions\TimeoutException;
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use TamerLib\Objects\JobPacket;
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use TamerLib\Objects\ServerConfiguration;
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use TamerLib\Objects\WorkerConfiguration;
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use Throwable;
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/**
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* @method static mixed __call(string $name, array $arguments)
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*/
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class tm
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{
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/**
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* @var string|null
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*/
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private static $mode;
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/**
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* @var ServerConfiguration|null
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*/
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private static $server_configuration;
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/**
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* @var RedisServer|null
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*/
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private static $server;
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/**
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* @var int[]
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*/
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private static $watching_jobs = [];
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/**
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* @var WorkerSupervisor|null
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*/
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private static $supervisor;
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/**
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* @var JobManager|null
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*/
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private static $job_manager;
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/**
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* @var WorkerConfiguration|null
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*/
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private static $worker_configuration;
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/**
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* @var array
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*/
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private static $function_pointers = [];
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/**
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* @var string|null
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*/
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private static $return_channel;
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/**
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* INTERNAL FUNCTIONS
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*/
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/**
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* Appends the job ID to the watch list
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*
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* @param int $job_id
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* @return void
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*/
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private static function addToWatchlist(int $job_id): void
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{
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if(!in_array($job_id, self::$watching_jobs, true))
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{
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self::$watching_jobs[] = $job_id;
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}
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}
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/**
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* Removes the job ID from the watch list
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*
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* @param int $job_id
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* @return void
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*/
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private static function removeFromWatchlist(int $job_id): void
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{
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if(($key = array_search($job_id, self::$watching_jobs, true)) !== false)
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{
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unset(self::$watching_jobs[$key]);
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}
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}
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/**
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* GLOBAL FUNCTIONS
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*/
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/**
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* Initializes Tamer in the specified mode
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*
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* Note that Tamer can only be initialized once per process, additionally not all functions are available in
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* all modes. Please review the documentation for CLIENT & WORKER mode usage as both modes operate differently.
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*
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* CLIENT MODE:
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* Client Mode supervises workers and optionally initializes a server instance if the $server_config parameter
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* is left null, in which case a server will be initialized with default parameters. If a server is already
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* initialized then CLIENT Mode can work in swarm mode where multiple clients can be initialized, and they will
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* all share the same server instance. This is done by passing the same $server_config object to each client.
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*
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* WORKER MODE:
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* Worker Mode is responsible for listening for jobs and executing them. Worker Mode can only be initialized
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* if the parent process is a client process, otherwise an exception will be thrown because the worker will
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* have no server to connect to if it is not initialized by a client.
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*
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* @param string|null $mode
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* @param ServerConfiguration|null $server_config
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* @return void
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* @throws ServerException
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* @throws Exception
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*/
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public static function initalize(?string $mode, ?ServerConfiguration $server_config=null): void
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{
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if(self::$mode !== null)
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{
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throw new RuntimeException('TamerLib has already been initialized.');
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}
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if(!in_array(strtolower($mode), TamerMode::ALL, true))
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{
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throw new InvalidArgumentException(sprintf('Invalid mode "%s" provided, must be one of "%s".', $mode, implode('", "', TamerMode::ALL)));
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}
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self::$mode = $mode;
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self::$server_configuration = $server_config;
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if($server_config === null && $mode === TamerMode::CLIENT)
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{
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try
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{
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// Initialize the server if no configuration was provided, and we are in client mode
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self::$server_configuration = new ServerConfiguration();
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self::$server = new RedisServer(self::$server_configuration);
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self::$server->start();
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// Register shutdown function to stop the server when the process exits
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register_shutdown_function(static function()
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{
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self::$server?->stop();
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});
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}
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catch(Exception $e)
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{
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throw new ServerException('Failed to initialize the server.', 0, $e);
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}
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}
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if($mode === TamerMode::WORKER)
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{
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try
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{
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self::$worker_configuration = WorkerConfiguration::fromEnvironment();
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self::$server_configuration = new ServerConfiguration(self::$worker_configuration->getHost(), self::$worker_configuration->getPort(), self::$worker_configuration->getPassword());
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}
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catch(Exception $e)
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{
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throw new RuntimeException('Failed to initialize worker configuration. (is the process running as a worker?)', 0, $e);
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}
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}
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if($mode === TamerMode::CLIENT)
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{
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self::$supervisor = new WorkerSupervisor(self::$server_configuration);
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self::$return_channel = 'rch' . random_int(100000000, 999999999);
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}
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self::$job_manager = new JobManager(self::$server_configuration);
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}
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/**
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* Shuts down all workers
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*
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* @return void
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*/
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public static function shutdown(): void
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{
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if(self::$mode === null)
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{
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return;
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}
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if(self::$mode === TamerMode::CLIENT && self::$supervisor !== null)
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{
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self::$supervisor->stopAll();
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}
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}
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/**
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* CLIENT FUNCTIONS
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*/
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/**
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* Spawns a worker process by their count, if the path is null then a generic sub process will be spawned
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* that will only be capable of executing closures.
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*
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* @param int $count
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* @param string|null $path
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* @param int $channel
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* @return void
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*/
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public static function createWorker(int $count=8, ?string $path=null, int $channel=0): void
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{
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if(self::$mode !== TamerMode::CLIENT)
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{
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throw new RuntimeException(sprintf('Attempting to spawn a worker in \'%s\' mode, only clients can spawn workers.', self::$mode));
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}
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if($path === null)
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{
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self::$supervisor->spawnClosure($count, $channel);
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}
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else
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{
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self::$supervisor->spawnWorker($path, $count, $channel);
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}
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}
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/**
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* Preforms a job in the background, returns the Job ID to keep track of the job status.
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*
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* @param callable $function
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* @param array $arguments
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* @param int $channel
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* @return string
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*/
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public static function do(callable $function, array $arguments, int $channel=0): string
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{
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if(self::$mode !== TamerMode::CLIENT)
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{
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throw new RuntimeException(sprintf('Attempting to do() in \'%s\' mode, only clients can preform do().', self::$mode));
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}
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$job_packet = new JobPacket();
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$job_packet->setJobType(JobType::CLOSURE);
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$job_packet->setParameters(serialize($arguments));
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$job_packet->setPayload(serialize(new SerializableClosure($function)));
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$job_packet->setChannel($channel);
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$job_packet->setReturnChannel(self::$return_channel);
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try
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{
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self::$job_manager->pushJob($job_packet);
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}
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catcH(Exception $e)
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{
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throw new RuntimeException('do() failed, failed to push job to the server', 0, $e);
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}
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self::addToWatchlist($job_packet->getId());
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return $job_packet->getId();
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}
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/**
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* Preforms a function call against a worker in the background, returns the Job ID to keep track of the job status.
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*
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* @param string $function
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* @param array $arguments
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* @param int $channel
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* @return mixed
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*/
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public static function call(string $function, array $arguments, int $channel=0): mixed
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{
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if(self::$mode !== TamerMode::CLIENT)
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{
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throw new RuntimeException(sprintf('Attempting to call() in \'%s\' mode, only clients can preform call().', self::$mode));
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}
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$job_packet = new JobPacket();
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$job_packet->setJobType(JobType::FUNCTION);
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$job_packet->setParameters(serialize($arguments));
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$job_packet->setPayload($function);
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$job_packet->setChannel($channel);
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$job_packet->setReturnChannel(self::$return_channel);
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try
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{
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self::$job_manager->pushJob($job_packet);
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}
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catcH(Exception $e)
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{
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throw new RuntimeException('call() failed, failed to push job to the server', 0, $e);
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}
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self::addToWatchlist($job_packet->getId());
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return $job_packet->getId();
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}
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/**
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* Does a job in the background, but once the job is completed it will be forgotten and the result will not be
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* returned, this also means that the job will not be added to the watchlist.
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*
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* @param callable $function
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* @param array $arguments
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* @param int $channel
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* @return void
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*/
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public function dof(callable $function, array $arguments, int $channel=0): void
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{
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if(self::$mode !== TamerMode::CLIENT)
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{
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throw new RuntimeException(sprintf('Attempting to dof() in \'%s\' mode, only clients can preform dof().', self::$mode));
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}
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$job_packet = new JobPacket();
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$job_packet->setJobType(JobType::CLOSURE);
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$job_packet->setParameters(serialize($arguments));
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$job_packet->setPayload(serialize(new SerializableClosure($function)));
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$job_packet->setChannel($channel);
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try
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{
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self::$job_manager->pushJob($job_packet);
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}
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catcH(Exception $e)
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{
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throw new RuntimeException('do() failed, failed to push job to the server', 0, $e);
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}
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self::addToWatchlist($job_packet->getId());
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}
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/**
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* Sends a function call to a worker in the background, but once the job is completed it will be forgotten and
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* the result will not be returned, this also means that the job will not be added to the watchlist.
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*
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* @param string $function
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* @param array $arguments
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* @param int $channel
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* @return void
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*/
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public static function callf(string $function, array $arguments, int $channel=0): void
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{
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if(self::$mode !== TamerMode::CLIENT)
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{
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throw new RuntimeException(sprintf('Attempting to callf() in \'%s\' mode, only clients can preform callf().', self::$mode));
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}
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$job_packet = new JobPacket();
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$job_packet->setJobType(JobType::FUNCTION);
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$job_packet->setParameters(serialize($arguments));
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$job_packet->setForget(true);
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$job_packet->setPayload($function);
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$job_packet->setChannel($channel);
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try
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{
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self::$job_manager->pushJob($job_packet);
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}
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catcH(Exception $e)
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{
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throw new RuntimeException('callf() failed, failed to push job to the server', 0, $e);
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}
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self::addToWatchlist($job_packet->getId());
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}
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/**
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* Waits for all the dispatched jobs to complete, this is a blocking function and will not return until all the
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* jobs have completed. If a timeout is specified, the function will return after the timeout has been reached.
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*
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* @param callable $callback
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* @param int $timeout
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* @return void
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* @throws ServerException
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* @throws Throwable
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* @throws TimeoutException
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*/
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public static function wait(callable $callback, int $timeout=0): void
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{
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if(self::$mode !== TamerMode::CLIENT)
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{
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throw new RuntimeException(sprintf('Attempting to wait() in \'%s\' mode, only clients can preform wait().', self::$mode));
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}
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$time_start = time();
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while(true)
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{
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if(count(self::$watching_jobs) === 0)
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{
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Log::debug('net.nosial.tamerlib', 'No jobs to wait for, returning');
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return;
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}
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Log::debug('net.nosial.tamerlib', 'Waiting for jobs to complete');
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$job_packet = self::$job_manager->listenReturnChannel(self::$return_channel);
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if(in_array($job_packet->getId(), self::$watching_jobs))
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{
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Log::debug('net.nosial.tamerlib', sprintf('Job \'%s\' has returned, removing from watchlist', $job_packet->getId()));
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self::removeFromWatchlist($job_packet->getId());
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self::$job_manager->dropJob($job_packet->getId());
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if($job_packet->getStatus() === JobStatus::FINISHED)
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{
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$return_value = $job_packet->getReturnValue();
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if($return_value === null)
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{
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$return_value = null;
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}
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else
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{
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$return_value = unserialize($return_value, ['allowed_classes' => true]);
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if($return_value === false)
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{
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Log::error('net.nosial.tamerlib', 'Failed to unserialize return value, return value was dropped');
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$return_value = null;
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}
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}
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$callback($job_packet->getId(), $return_value);
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}
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elseif($job_packet->getStatus() === JobStatus::FAILED)
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{
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try
|
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{
|
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$e = unserialize($job_packet->getException(), ['allowed_classes' => true]);
|
||||
}
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catch(Exception $e)
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{
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Log::error('net.nosial.tamerlib', 'Failed to unserialize exception, exception was dropped', $e);
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}
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finally
|
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{
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if(isset($e) && $e instanceof Throwable)
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{
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throw $e;
|
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}
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throw new ServerException('wait() failed, job returned with an exception');
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}
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||||
}
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else
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{
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Log::debug('net.nosial.tamerlib', sprintf('Job \'%s\' returned with an unexpected status of \'%s\'', $job_packet->getId(), $job_packet->getStatus()));
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throw new ServerException('wait() failed, job returned with an unexpected status of \'' . $job_packet->getStatus() . '\'');
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}
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}
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else
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{
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Log::debug('net.nosial.tamerlib', sprintf('Job \'%s\' has returned, but is not in the watchlist', $job_packet->getId()));
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}
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if ($timeout < 0)
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{
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throw new TimeoutException('wait() timed out');
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}
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|
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if($timeout > 0 && (time() - $time_start) >= $timeout)
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{
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throw new TimeoutException('wait() timed out');
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}
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|
||||
usleep(10);
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}
|
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}
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|
||||
/**
|
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* Waits for a job to complete, returns the result of the job.
|
||||
*
|
||||
* @param JobPacket|int $job_id
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||||
* @param int $timeout
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||||
* @return mixed
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||||
* @throws JobNotFoundException
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* @throws ServerException
|
||||
* @throws TimeoutException
|
||||
* @throws Throwable
|
||||
*/
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public static function waitFor(JobPacket|int $job_id, int $timeout=0): mixed
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||||
{
|
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if(self::$mode !== TamerMode::CLIENT)
|
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{
|
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throw new RuntimeException(sprintf('Attempting to waitFor() in \'%s\' mode, only clients can preform waitFor().', self::$mode));
|
||||
}
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||||
|
||||
if($job_id instanceof JobPacket)
|
||||
{
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$job_id = $job_id->getId();
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||||
}
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||||
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||||
$time_start = time();
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||||
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||||
while(true)
|
||||
{
|
||||
self::$supervisor->monitor(-1);
|
||||
|
||||
switch(self::$job_manager->getJobStatus($job_id))
|
||||
{
|
||||
case JobStatus::FINISHED:
|
||||
$return = self::$job_manager->getJobResult($job_id);
|
||||
self::$job_manager->dropJob($job_id);
|
||||
return $return;
|
||||
|
||||
case JobStatus::FAILED:
|
||||
$throwable = self::$job_manager->getJobException($job_id);
|
||||
self::$job_manager->dropJob($job_id);
|
||||
throw $throwable;
|
||||
}
|
||||
|
||||
if($timeout < 0)
|
||||
{
|
||||
throw new TimeoutException('waitFor() timed out');
|
||||
}
|
||||
|
||||
if($timeout > 0 && (time() - $time_start) >= $timeout)
|
||||
{
|
||||
throw new TimeoutException(sprintf('waitFor() timed out after %d seconds', $timeout));
|
||||
}
|
||||
|
||||
usleep(10);
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
/**
|
||||
* Clears the watchlist, this will remove all jobs from the watchlist.
|
||||
*
|
||||
* @return void
|
||||
*/
|
||||
public static function clear(): void
|
||||
{
|
||||
if(self::$mode !== TamerMode::CLIENT)
|
||||
{
|
||||
throw new RuntimeException(sprintf('Attempting to clear() in \'%s\' mode, only clients can preform clear().', self::$mode));
|
||||
}
|
||||
|
||||
self::$watching_jobs = [];
|
||||
}
|
||||
|
||||
/**
|
||||
* Invokes the call() function, returns the Job ID.
|
||||
*
|
||||
* @param string $name
|
||||
* @param array $arguments
|
||||
* @return mixed
|
||||
*/
|
||||
public static function __callStatic(string $name, array $arguments)
|
||||
{
|
||||
return self::call($name, $arguments);
|
||||
}
|
||||
|
||||
/**
|
||||
* WORKER FUNCTIONS
|
||||
*/
|
||||
|
||||
/**
|
||||
* @param string $function
|
||||
* @param callable $callback
|
||||
* @return void
|
||||
*/
|
||||
public static function addFunction(string $function, callable $callback): void
|
||||
{
|
||||
if(self::$mode !== TamerMode::WORKER)
|
||||
{
|
||||
throw new RuntimeException(sprintf('Attempting to addFunction() in \'%s\' mode, only workers can preform addFunction().', self::$mode));
|
||||
}
|
||||
|
||||
self::$function_pointers[$function] = $callback;
|
||||
}
|
||||
|
||||
/**
|
||||
* @param string $function
|
||||
* @return void
|
||||
*/
|
||||
public static function removeFunction(string $function): void
|
||||
{
|
||||
if(self::$mode !== TamerMode::WORKER)
|
||||
{
|
||||
throw new RuntimeException(sprintf('Attempting to removeFunction() in \'%s\' mode, only workers can preform removeFunction().', self::$mode));
|
||||
}
|
||||
|
||||
unset(self::$function_pointers[$function]);
|
||||
}
|
||||
|
||||
/**
|
||||
* @return array
|
||||
*/
|
||||
public static function getFunctions(): array
|
||||
{
|
||||
if(self::$mode !== TamerMode::WORKER)
|
||||
{
|
||||
throw new RuntimeException(sprintf('Attempting to getFunctions() in \'%s\' mode, only workers can preform getFunctions().', self::$mode));
|
||||
}
|
||||
|
||||
return array_keys(self::$function_pointers);
|
||||
}
|
||||
|
||||
/**
|
||||
* @param int|array $channel
|
||||
* @param int $timeout
|
||||
* @return void
|
||||
* @throws JobNotFoundException
|
||||
* @throws ServerException
|
||||
*/
|
||||
public static function run(int|array $channel=0, int $timeout=0): void
|
||||
{
|
||||
if(self::$mode !== TamerMode::WORKER)
|
||||
{
|
||||
throw new RuntimeException(sprintf('Attempting to run() in \'%s\' mode, only workers can preform run().', self::$mode));
|
||||
}
|
||||
|
||||
try
|
||||
{
|
||||
$job_packet = self::$job_manager->listenForJob(self::$worker_configuration->getWorkerId(), $channel, $timeout);
|
||||
}
|
||||
catch(TimeoutException $e)
|
||||
{
|
||||
unset($e);
|
||||
return;
|
||||
}
|
||||
|
||||
Log::debug('net.nosial.tamerlib', sprintf('Worker %s received job %s', self::$worker_configuration->getWorkerId(), $job_packet->getId()));
|
||||
|
||||
switch($job_packet->getJobType())
|
||||
{
|
||||
case JobType::FUNCTION:
|
||||
if(!isset(self::$function_pointers[$job_packet->getPayload()]))
|
||||
{
|
||||
Log::warning('net.nosial.tamerlib', sprintf('Job %s requested function \'%s\' which does not exist, rejecting job.', $job_packet->getId(), $job_packet->getPayload()));
|
||||
self::$job_manager->rejectJob($job_packet);
|
||||
}
|
||||
|
||||
try
|
||||
{
|
||||
$result = call_user_func_array(self::$function_pointers[$job_packet->getPayload()], unserialize($job_packet->getParameters(), ['allowed_classes'=>true]));
|
||||
self::$job_manager->returnJob($job_packet, $result);
|
||||
}
|
||||
catch(Exception $e)
|
||||
{
|
||||
var_dump($e);
|
||||
self::$job_manager->returnException($job_packet, $e);
|
||||
}
|
||||
break;
|
||||
|
||||
case JobType::CLOSURE:
|
||||
try
|
||||
{
|
||||
$result = unserialize($job_packet->getPayload(), ['allowed_classes'=>true])(
|
||||
unserialize($job_packet->getParameters(), ['allowed_classes'=>true])
|
||||
);
|
||||
self::$job_manager->returnJob($job_packet, $result);
|
||||
}
|
||||
catch(Exception $e)
|
||||
{
|
||||
self::$job_manager->returnException($job_packet, $e);
|
||||
}
|
||||
break;
|
||||
}
|
||||
}
|
||||
}
|
||||
Loading…
Add table
Add a link
Reference in a new issue