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Add ability to set Environment class name

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This commit is contained in:
Aaron Piotrowski 2017-07-26 01:02:34 -05:00
parent faf1555b9c
commit cab8bbe8f6
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GPG Key ID: ADD1EF783EDE9EEB
4 changed files with 79 additions and 12 deletions
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30
bin/worker
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@ -40,10 +40,36 @@ ob_start(function ($data) {
Amp\Loop::run(function () {
$channel = new Sync\ChannelledSocket(STDIN, STDOUT);
$environment = new Worker\BasicEnvironment;
$runner = new Worker\TaskRunner($channel, $environment);
try {
$environment = (function (): Worker\Environment {
$options = getopt("e:");
if (!isset($options["e"])) {
throw new Error("No environment class name provided");
}
$className = $options["e"];
try {
$reflection = new ReflectionClass($className);
} catch (ReflectionException $e) {
throw new Error(sprintf("Invalid class name '%s'", $className));
}
if (!$reflection->isInstantiable()) {
throw new Error(sprintf("'%s' is not instatiable class", $className));
}
if (!$reflection->implementsInterface(Worker\Environment::class)) {
throw new Error(sprintf("The class '%s' does not implement '%s'", $className,Worker\Environment::class));
}
return $reflection->newInstance();
})();
$runner = new Worker\TaskRunner($channel, $environment);
$result = new Sync\Internal\ExitSuccess(yield $runner->run());
} catch (Sync\ChannelException $exception) {
exit(1); // Parent context died, simply exit.

15
lib/Process/ChannelledProcess.php
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@ -25,20 +25,27 @@ class ChannelledProcess implements ProcessContext, Strand {
private $channel;
/**
* @param string $path Path to PHP script.
* @param string $cwd Working directory.
* @param string|array $script Path to PHP script or array with first element as path and following elements options
* to the PHP script (e.g.: ['bin/worker', '-eOptionValue', '-nOptionValue'].
* @param string $cwd Working directory.
* @param mixed[] $env Array of environment variables.
*/
public function __construct(string $path, string $cwd = "", array $env = []) {
public function __construct($script, string $cwd = "", array $env = []) {
$options = [
"html_errors" => "0",
"display_errors" => "0",
"log_errors" => "1",
];
if (\is_array($script)) {
$script = \implode(" ", \array_map("escapeshellarg", $script));
} else {
$script = \escapeshellarg($script);
}
$options = (\PHP_SAPI === "phpdbg" ? " -b -qrr " : " ") . $this->formatOptions($options);
$separator = \PHP_SAPI === "phpdbg" ? " -- " : " ";
$command = \escapeshellarg(\PHP_BINARY) . $options . $separator . \escapeshellarg($path);
$command = \escapeshellarg(\PHP_BINARY) . $options . $separator . $script;
$processOptions = [];

14
lib/Worker/WorkerProcess.php
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@ -8,8 +8,18 @@ use Amp\Parallel\Process\ChannelledProcess;
* A worker thread that executes task objects.
*/
class WorkerProcess extends AbstractWorker {
public function __construct() {
/**
* @param string $envClassName Name of class implementing \Amp\Parallel\Worker\Environment to instigate.
* Defaults to \Amp\Parallel\Worker\BasicEnvironment.
* @param mixed[] $env Array of environment variables to pass to the worker. Empty array inherits from the current
* PHP process. See the $env parameter of \Amp\Process\Process::__construct().
*/
public function __construct(string $envClassName = BasicEnvironment::class, array $env = []) {
$dir = \dirname(__DIR__, 2) . '/bin';
parent::__construct(new ChannelledProcess($dir . '/worker', $dir));
$script = [
$dir . "/worker",
"-e" . $envClassName,
];
parent::__construct(new ChannelledProcess($script, $dir, $env));
}
}

32
lib/Worker/WorkerThread.php
View File

@ -9,10 +9,34 @@ use Amp\Promise;
* A worker thread that executes task objects.
*/
class WorkerThread extends AbstractWorker {
public function __construct() {
parent::__construct(new Thread(function (): Promise {
$runner = new TaskRunner($this, new BasicEnvironment);
/**
* @param string $envClassName Name of class implementing \Amp\Parallel\Worker\Environment to instigate.
* Defaults to \Amp\Parallel\Worker\BasicEnvironment.
*/
public function __construct(string $envClassName = BasicEnvironment::class) {
parent::__construct(new Thread(function (string $className): Promise {
try {
$reflection = new \ReflectionClass($className);
} catch (\ReflectionException $e) {
throw new \Error(\sprintf("Invalid class name '%s'", $className));
}
if (!$reflection->isInstantiable()) {
throw new \Error(\sprintf("'%s' is not instatiable class", $className));
}
if (!$reflection->implementsInterface(Environment::class)) {
throw new \Error(\sprintf("The class '%s' does not implement '%s'", $className, Environment::class));
}
$environment = $reflection->newInstance();
if (!\defined("AMP_WORKER")) {
\define("AMP_WORKER", "amp-worker");
}
$runner = new TaskRunner($this, $environment);
return $runner->run();
}));
}, $envClassName));
}
}