mirror of
https://github.com/danog/amp.git
synced 2024-11-27 04:24:42 +01:00
d7353d4d8f
Exceptions thrown from watcher callbacks are now forwarded to the loop error handler without ending the current tick. Fixes #74.
669 lines
24 KiB
PHP
669 lines
24 KiB
PHP
<?php
|
|
|
|
namespace Amp\Loop;
|
|
|
|
use Amp\Coroutine;
|
|
use Amp\Promise;
|
|
use Amp\Internal\Watcher;
|
|
use React\Promise\PromiseInterface as ReactPromise;
|
|
use function Amp\rethrow;
|
|
|
|
/**
|
|
* Event loop driver which implements all basic operations to allow interoperability.
|
|
*
|
|
* Watchers (enabled or new watchers) MUST immediately be marked as enabled, but only be activated (i.e. callbacks can
|
|
* be called) right before the next tick. Callbacks of watchers MUST NOT be called in the tick they were enabled.
|
|
*
|
|
* All registered callbacks MUST NOT be called from a file with strict types enabled (`declare(strict_types=1)`).
|
|
*/
|
|
abstract class Driver {
|
|
// Don't use 1e3 / 1e6, they result in a float instead of int
|
|
const MILLISEC_PER_SEC = 1000;
|
|
const MICROSEC_PER_SEC = 1000000;
|
|
|
|
/** @var string */
|
|
private $nextId = "a";
|
|
|
|
/** @var \Amp\Internal\Watcher[] */
|
|
private $watchers = [];
|
|
|
|
/** @var \Amp\Internal\Watcher[] */
|
|
private $enableQueue = [];
|
|
|
|
/** @var \Amp\Internal\Watcher[] */
|
|
private $deferQueue = [];
|
|
|
|
/** @var \Amp\Internal\Watcher[] */
|
|
private $nextTickQueue = [];
|
|
|
|
/** @var callable|null */
|
|
private $errorHandler;
|
|
|
|
/** @var int */
|
|
private $running = 0;
|
|
|
|
/** @var array */
|
|
private $registry = [];
|
|
|
|
/**
|
|
* Run the event loop.
|
|
*
|
|
* One iteration of the loop is called one "tick". A tick covers the following steps:
|
|
*
|
|
* 1. Activate watchers created / enabled in the last tick / before `run()`.
|
|
* 2. Execute all enabled defer watchers.
|
|
* 3. Execute all due timer, pending signal and actionable stream callbacks, each only once per tick.
|
|
*
|
|
* The loop MUST continue to run until it is either stopped explicitly, no referenced watchers exist anymore, or an
|
|
* exception is thrown that cannot be handled. Exceptions that cannot be handled are exceptions thrown from an
|
|
* error handler or exceptions that would be passed to an error handler but none exists to handle them.
|
|
*
|
|
* @return void
|
|
*/
|
|
public function run() {
|
|
$previous = $this->running;
|
|
++$this->running;
|
|
|
|
try {
|
|
while ($this->running > $previous) {
|
|
if ($this->isEmpty()) {
|
|
return;
|
|
}
|
|
$this->tick();
|
|
}
|
|
} finally {
|
|
$this->running = $previous;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* @return bool True if no enabled and referenced watchers remain in the loop.
|
|
*/
|
|
private function isEmpty() {
|
|
foreach ($this->watchers as $watcher) {
|
|
if ($watcher->enabled && $watcher->referenced) {
|
|
return false;
|
|
}
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* Executes a single tick of the event loop.
|
|
*/
|
|
private function tick() {
|
|
$this->deferQueue = \array_merge($this->deferQueue, $this->nextTickQueue);
|
|
$this->nextTickQueue = [];
|
|
|
|
$this->activate($this->enableQueue);
|
|
$this->enableQueue = [];
|
|
|
|
foreach ($this->deferQueue as $watcher) {
|
|
if (!isset($this->deferQueue[$watcher->id])) {
|
|
continue; // Watcher disabled by another defer watcher.
|
|
}
|
|
|
|
unset($this->watchers[$watcher->id], $this->deferQueue[$watcher->id]);
|
|
|
|
try {
|
|
$result = ($watcher->callback)($watcher->id, $watcher->data);
|
|
|
|
if ($result === null) {
|
|
continue;
|
|
}
|
|
|
|
if ($result instanceof \Generator) {
|
|
$result = new Coroutine($result);
|
|
}
|
|
|
|
if ($result instanceof Promise || $result instanceof ReactPromise) {
|
|
rethrow($result);
|
|
}
|
|
} catch (\Throwable $exception) {
|
|
$this->error($exception);
|
|
}
|
|
}
|
|
|
|
$this->dispatch(empty($this->nextTickQueue) && empty($this->enableQueue) && $this->running);
|
|
}
|
|
|
|
/**
|
|
* Activates (enables) all the given watchers.
|
|
*
|
|
* @param \Amp\Internal\Watcher[] $watchers
|
|
*/
|
|
abstract protected function activate(array $watchers);
|
|
|
|
/**
|
|
* Dispatches any pending read/write, timer, and signal events.
|
|
*
|
|
* @param bool $blocking
|
|
*/
|
|
abstract protected function dispatch(bool $blocking);
|
|
|
|
/**
|
|
* Stop the event loop.
|
|
*
|
|
* When an event loop is stopped, it continues with its current tick and exits the loop afterwards. Multiple calls
|
|
* to stop MUST be ignored and MUST NOT raise an exception.
|
|
*
|
|
* @return void
|
|
*/
|
|
public function stop() {
|
|
--$this->running > 0 ?: $this->running = 0;
|
|
}
|
|
|
|
/**
|
|
* Defer the execution of a callback.
|
|
*
|
|
* The deferred callable MUST be executed before any other type of watcher in a tick. Order of enabling MUST be
|
|
* preserved when executing the callbacks.
|
|
*
|
|
* The created watcher MUST immediately be marked as enabled, but only be activated (i.e. callback can be called)
|
|
* right before the next tick. Callbacks of watchers MUST NOT be called in the tick they were enabled.
|
|
*
|
|
* @param callable (string $watcherId, mixed $data) $callback The callback to defer. The `$watcherId` will be
|
|
* invalidated before the callback call.
|
|
* @param mixed $data Arbitrary data given to the callback function as the `$data` parameter.
|
|
*
|
|
* @return string An unique identifier that can be used to cancel, enable or disable the watcher.
|
|
*/
|
|
public function defer(callable $callback, $data = null): string {
|
|
$watcher = new Watcher;
|
|
$watcher->type = Watcher::DEFER;
|
|
$watcher->id = $this->nextId++;
|
|
$watcher->callback = $callback;
|
|
$watcher->data = $data;
|
|
|
|
$this->watchers[$watcher->id] = $watcher;
|
|
$this->nextTickQueue[$watcher->id] = $watcher;
|
|
|
|
return $watcher->id;
|
|
}
|
|
|
|
/**
|
|
* Delay the execution of a callback.
|
|
*
|
|
* The delay is a minimum and approximate, accuracy is not guaranteed. Order of calls MUST be determined by which
|
|
* timers expire first, but timers with the same expiration time MAY be executed in any order.
|
|
*
|
|
* The created watcher MUST immediately be marked as enabled, but only be activated (i.e. callback can be called)
|
|
* right before the next tick. Callbacks of watchers MUST NOT be called in the tick they were enabled.
|
|
*
|
|
* @param int $delay The amount of time, in milliseconds, to delay the execution for.
|
|
* @param callable (string $watcherId, mixed $data) $callback The callback to delay. The `$watcherId` will be
|
|
* invalidated before the callback call.
|
|
* @param mixed $data Arbitrary data given to the callback function as the `$data` parameter.
|
|
*
|
|
* @return string An unique identifier that can be used to cancel, enable or disable the watcher.
|
|
*/
|
|
public function delay(int $delay, callable $callback, $data = null): string {
|
|
if ($delay < 0) {
|
|
throw new \InvalidArgumentException("Delay must be greater than or equal to zero");
|
|
}
|
|
|
|
$watcher = new Watcher;
|
|
$watcher->type = Watcher::DELAY;
|
|
$watcher->id = $this->nextId++;
|
|
$watcher->callback = $callback;
|
|
$watcher->value = $delay;
|
|
$watcher->data = $data;
|
|
|
|
$this->watchers[$watcher->id] = $watcher;
|
|
$this->enableQueue[$watcher->id] = $watcher;
|
|
|
|
return $watcher->id;
|
|
}
|
|
|
|
/**
|
|
* Repeatedly execute a callback.
|
|
*
|
|
* The interval between executions is a minimum and approximate, accuracy is not guaranteed. Order of calls MUST be
|
|
* determined by which timers expire first, but timers with the same expiration time MAY be executed in any order.
|
|
* The first execution is scheduled after the first interval period.
|
|
*
|
|
* The created watcher MUST immediately be marked as enabled, but only be activated (i.e. callback can be called)
|
|
* right before the next tick. Callbacks of watchers MUST NOT be called in the tick they were enabled.
|
|
*
|
|
* @param int $interval The time interval, in milliseconds, to wait between executions.
|
|
* @param callable (string $watcherId, mixed $data) $callback The callback to repeat.
|
|
* @param mixed $data Arbitrary data given to the callback function as the `$data` parameter.
|
|
*
|
|
* @return string An unique identifier that can be used to cancel, enable or disable the watcher.
|
|
*/
|
|
public function repeat(int $interval, callable $callback, $data = null): string {
|
|
if ($interval < 0) {
|
|
throw new \InvalidArgumentException("Interval must be greater than or equal to zero");
|
|
}
|
|
|
|
$watcher = new Watcher;
|
|
$watcher->type = Watcher::REPEAT;
|
|
$watcher->id = $this->nextId++;
|
|
$watcher->callback = $callback;
|
|
$watcher->value = $interval;
|
|
$watcher->data = $data;
|
|
|
|
$this->watchers[$watcher->id] = $watcher;
|
|
$this->enableQueue[$watcher->id] = $watcher;
|
|
|
|
return $watcher->id;
|
|
}
|
|
|
|
/**
|
|
* Execute a callback when a stream resource becomes readable or is closed for reading.
|
|
*
|
|
* Warning: Closing resources locally, e.g. with `fclose`, might not invoke the callback. Be sure to `cancel` the
|
|
* watcher when closing the resource locally. Drivers MAY choose to notify the user if there are watchers on invalid
|
|
* resources, but are not required to, due to the high performance impact. Watchers on closed resources are
|
|
* therefore undefined behavior.
|
|
*
|
|
* Multiple watchers on the same stream MAY be executed in any order.
|
|
*
|
|
* The created watcher MUST immediately be marked as enabled, but only be activated (i.e. callback can be called)
|
|
* right before the next tick. Callbacks of watchers MUST NOT be called in the tick they were enabled.
|
|
*
|
|
* @param resource $stream The stream to monitor.
|
|
* @param callable (string $watcherId, resource $stream, mixed $data) $callback The callback to execute.
|
|
* @param mixed $data Arbitrary data given to the callback function as the `$data` parameter.
|
|
*
|
|
* @return string An unique identifier that can be used to cancel, enable or disable the watcher.
|
|
*/
|
|
public function onReadable($stream, callable $callback, $data = null): string {
|
|
$watcher = new Watcher;
|
|
$watcher->type = Watcher::READABLE;
|
|
$watcher->id = $this->nextId++;
|
|
$watcher->callback = $callback;
|
|
$watcher->value = $stream;
|
|
$watcher->data = $data;
|
|
|
|
$this->watchers[$watcher->id] = $watcher;
|
|
$this->enableQueue[$watcher->id] = $watcher;
|
|
|
|
return $watcher->id;
|
|
}
|
|
|
|
/**
|
|
* Execute a callback when a stream resource becomes writable or is closed for writing.
|
|
*
|
|
* Warning: Closing resources locally, e.g. with `fclose`, might not invoke the callback. Be sure to `cancel` the
|
|
* watcher when closing the resource locally. Drivers MAY choose to notify the user if there are watchers on invalid
|
|
* resources, but are not required to, due to the high performance impact. Watchers on closed resources are
|
|
* therefore undefined behavior.
|
|
*
|
|
* Multiple watchers on the same stream MAY be executed in any order.
|
|
*
|
|
* The created watcher MUST immediately be marked as enabled, but only be activated (i.e. callback can be called)
|
|
* right before the next tick. Callbacks of watchers MUST NOT be called in the tick they were enabled.
|
|
*
|
|
* @param resource $stream The stream to monitor.
|
|
* @param callable (string $watcherId, resource $stream, mixed $data) $callback The callback to execute.
|
|
* @param mixed $data Arbitrary data given to the callback function as the `$data` parameter.
|
|
*
|
|
* @return string An unique identifier that can be used to cancel, enable or disable the watcher.
|
|
*/
|
|
public function onWritable($stream, callable $callback, $data = null): string {
|
|
$watcher = new Watcher;
|
|
$watcher->type = Watcher::WRITABLE;
|
|
$watcher->id = $this->nextId++;
|
|
$watcher->callback = $callback;
|
|
$watcher->value = $stream;
|
|
$watcher->data = $data;
|
|
|
|
$this->watchers[$watcher->id] = $watcher;
|
|
$this->enableQueue[$watcher->id] = $watcher;
|
|
|
|
return $watcher->id;
|
|
}
|
|
|
|
/**
|
|
* Execute a callback when a signal is received.
|
|
*
|
|
* Warning: Installing the same signal on different instances of this interface is deemed undefined behavior.
|
|
* Implementations MAY try to detect this, if possible, but are not required to. This is due to technical
|
|
* limitations of the signals being registered globally per process.
|
|
*
|
|
* Multiple watchers on the same signal MAY be executed in any order.
|
|
*
|
|
* The created watcher MUST immediately be marked as enabled, but only be activated (i.e. callback can be called)
|
|
* right before the next tick. Callbacks of watchers MUST NOT be called in the tick they were enabled.
|
|
*
|
|
* @param int $signo The signal number to monitor.
|
|
* @param callable (string $watcherId, int $signo, mixed $data) $callback The callback to execute.
|
|
* @param mixed $data Arbitrary data given to the callback function as the $data parameter.
|
|
*
|
|
* @return string An unique identifier that can be used to cancel, enable or disable the watcher.
|
|
*
|
|
* @throws UnsupportedFeatureException If signal handling is not supported.
|
|
*/
|
|
public function onSignal(int $signo, callable $callback, $data = null): string {
|
|
$watcher = new Watcher;
|
|
$watcher->type = Watcher::SIGNAL;
|
|
$watcher->id = $this->nextId++;
|
|
$watcher->callback = $callback;
|
|
$watcher->value = $signo;
|
|
$watcher->data = $data;
|
|
|
|
$this->watchers[$watcher->id] = $watcher;
|
|
$this->enableQueue[$watcher->id] = $watcher;
|
|
|
|
return $watcher->id;
|
|
}
|
|
|
|
/**
|
|
* Enable a watcher to be active starting in the next tick.
|
|
*
|
|
* Watchers MUST immediately be marked as enabled, but only be activated (i.e. callbacks can be called) right before
|
|
* the next tick. Callbacks of watchers MUST NOT be called in the tick they were enabled.
|
|
*
|
|
* @param string $watcherId The watcher identifier.
|
|
*
|
|
* @return void
|
|
*
|
|
* @throws InvalidWatcherException If the watcher identifier is invalid.
|
|
*/
|
|
public function enable(string $watcherId) {
|
|
if (!isset($this->watchers[$watcherId])) {
|
|
throw new InvalidWatcherException($watcherId, "Cannot enable an invalid watcher identifier: '{$watcherId}'");
|
|
}
|
|
|
|
$watcher = $this->watchers[$watcherId];
|
|
|
|
if ($watcher->enabled) {
|
|
return; // Watcher already enabled.
|
|
}
|
|
|
|
$watcher->enabled = true;
|
|
|
|
switch ($watcher->type) {
|
|
case Watcher::DEFER:
|
|
$this->nextTickQueue[$watcher->id] = $watcher;
|
|
break;
|
|
|
|
default:
|
|
$this->enableQueue[$watcher->id] = $watcher;
|
|
break;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Cancel a watcher.
|
|
*
|
|
* This will detatch the event loop from all resources that are associated to the watcher. After this operation the
|
|
* watcher is permanently invalid. Calling this function MUST NOT fail, even if passed an invalid watcher.
|
|
*
|
|
* @param string $watcherId The watcher identifier.
|
|
*
|
|
* @return void
|
|
*/
|
|
public function cancel(string $watcherId) {
|
|
$this->disable($watcherId);
|
|
unset($this->watchers[$watcherId]);
|
|
}
|
|
|
|
/**
|
|
* Disable a watcher immediately.
|
|
*
|
|
* A watcher MUST be disabled immediately, e.g. if a defer watcher disables a later defer watcher, the second defer
|
|
* watcher isn't executed in this tick.
|
|
*
|
|
* Disabling a watcher MUST NOT invalidate the watcher. Calling this function MUST NOT fail, even if passed an
|
|
* invalid watcher.
|
|
*
|
|
* @param string $watcherId The watcher identifier.
|
|
*
|
|
* @return void
|
|
*/
|
|
public function disable(string $watcherId) {
|
|
if (!isset($this->watchers[$watcherId])) {
|
|
return;
|
|
}
|
|
|
|
$watcher = $this->watchers[$watcherId];
|
|
|
|
if (!$watcher->enabled) {
|
|
return; // Watcher already disabled.
|
|
}
|
|
|
|
$watcher->enabled = false;
|
|
$id = $watcher->id;
|
|
|
|
switch ($watcher->type) {
|
|
case Watcher::DEFER:
|
|
if (isset($this->nextTickQueue[$id])) {
|
|
// Watcher was only queued to be enabled.
|
|
unset($this->nextTickQueue[$id]);
|
|
} else {
|
|
unset($this->deferQueue[$id]);
|
|
}
|
|
break;
|
|
|
|
default:
|
|
if (isset($this->enableQueue[$id])) {
|
|
// Watcher was only queued to be enabled.
|
|
unset($this->enableQueue[$id]);
|
|
} else {
|
|
$this->deactivate($watcher);
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Deactivates (disables) the given watcher.
|
|
*
|
|
* @param \Amp\Internal\Watcher $watcher
|
|
*/
|
|
abstract protected function deactivate(Watcher $watcher);
|
|
|
|
/**
|
|
* Reference a watcher.
|
|
*
|
|
* This will keep the event loop alive whilst the watcher is still being monitored. Watchers have this state by
|
|
* default.
|
|
*
|
|
* @param string $watcherId The watcher identifier.
|
|
*
|
|
* @return void
|
|
*
|
|
* @throws InvalidWatcherException If the watcher identifier is invalid.
|
|
*/
|
|
public function reference(string $watcherId) {
|
|
if (!isset($this->watchers[$watcherId])) {
|
|
throw new InvalidWatcherException($watcherId, "Cannot reference an invalid watcher identifier: '{$watcherId}'");
|
|
}
|
|
|
|
$this->watchers[$watcherId]->referenced = true;
|
|
}
|
|
|
|
/**
|
|
* Unreference a watcher.
|
|
*
|
|
* The event loop should exit the run method when only unreferenced watchers are still being monitored. Watchers
|
|
* are all referenced by default.
|
|
*
|
|
* @param string $watcherId The watcher identifier.
|
|
*
|
|
* @return void
|
|
*
|
|
* @throws InvalidWatcherException If the watcher identifier is invalid.
|
|
*/
|
|
public function unreference(string $watcherId) {
|
|
if (!isset($this->watchers[$watcherId])) {
|
|
throw new InvalidWatcherException($watcherId, "Cannot unreference an invalid watcher identifier: '{$watcherId}'");
|
|
}
|
|
|
|
$this->watchers[$watcherId]->referenced = false;
|
|
}
|
|
|
|
/**
|
|
* Stores information in the loop bound registry.
|
|
*
|
|
* This can be used to store loop bound information. Stored information is package private. Packages MUST NOT
|
|
* retrieve the stored state of other packages. Packages MUST use the following prefix for keys: `vendor.package.`
|
|
*
|
|
* @param string $key The namespaced storage key.
|
|
* @param mixed $value The value to be stored.
|
|
*
|
|
* @return void
|
|
*/
|
|
final public function setState(string $key, $value) {
|
|
if ($value === null) {
|
|
unset($this->registry[$key]);
|
|
} else {
|
|
$this->registry[$key] = $value;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Gets information stored bound to the loop.
|
|
*
|
|
* Stored information is package private. Packages MUST NOT retrieve the stored state of other packages. Packages
|
|
* MUST use the following prefix for keys: `vendor.package.`
|
|
*
|
|
* @param string $key The namespaced storage key.
|
|
*
|
|
* @return mixed The previously stored value or `null` if it doesn't exist.
|
|
*/
|
|
final public function getState(string $key) {
|
|
return isset($this->registry[$key]) ? $this->registry[$key] : null;
|
|
}
|
|
|
|
/**
|
|
* Set a callback to be executed when an error occurs.
|
|
*
|
|
* The callback receives the error as the first and only parameter. The return value of the callback gets ignored.
|
|
* If it can't handle the error, it MUST throw the error. Errors thrown by the callback or during its invocation
|
|
* MUST be thrown into the `run` loop and stop the driver.
|
|
*
|
|
* Subsequent calls to this method will overwrite the previous handler.
|
|
*
|
|
* @param callable (\Throwable|\Exception $error)|null $callback The callback to execute. `null` will clear the
|
|
* current handler.
|
|
*
|
|
* @return callable(\Throwable|\Exception $error)|null The previous handler, `null` if there was none.
|
|
*/
|
|
public function setErrorHandler(callable $callback = null) {
|
|
$previous = $this->errorHandler;
|
|
$this->errorHandler = $callback;
|
|
return $previous;
|
|
}
|
|
|
|
/**
|
|
* Invokes the error handler with the given exception.
|
|
*
|
|
* @param \Throwable $exception The exception thrown from a watcher callback.
|
|
*
|
|
* @throws \Throwable If no error handler has been set.
|
|
*/
|
|
protected function error(\Throwable $exception) {
|
|
if ($this->errorHandler === null) {
|
|
throw $exception;
|
|
}
|
|
|
|
($this->errorHandler)($exception);
|
|
}
|
|
|
|
/**
|
|
* Get the underlying loop handle.
|
|
*
|
|
* Example: the `uv_loop` resource for `libuv` or the `EvLoop` object for `libev` or `null` for a native driver.
|
|
*
|
|
* Note: This function is *not* exposed in the `Loop` class. Users shall access it directly on the respective loop
|
|
* instance.
|
|
*
|
|
* @return null|object|resource The loop handle the event loop operates on. `null` if there is none.
|
|
*/
|
|
abstract public function getHandle();
|
|
|
|
/**
|
|
* Returns the same array of data as getInfo().
|
|
*
|
|
* @return array
|
|
*/
|
|
public function __debugInfo() {
|
|
return $this->getInfo();
|
|
}
|
|
|
|
/**
|
|
* Retrieve an associative array of information about the event loop driver.
|
|
*
|
|
* The returned array MUST contain the following data describing the driver's currently registered watchers:
|
|
*
|
|
* [
|
|
* "defer" => ["enabled" => int, "disabled" => int],
|
|
* "delay" => ["enabled" => int, "disabled" => int],
|
|
* "repeat" => ["enabled" => int, "disabled" => int],
|
|
* "on_readable" => ["enabled" => int, "disabled" => int],
|
|
* "on_writable" => ["enabled" => int, "disabled" => int],
|
|
* "on_signal" => ["enabled" => int, "disabled" => int],
|
|
* "enabled_watchers" => ["referenced" => int, "unreferenced" => int],
|
|
* "running" => bool
|
|
* ];
|
|
*
|
|
* Implementations MAY optionally add more information in the array but at minimum the above `key => value` format
|
|
* MUST always be provided.
|
|
*
|
|
* @return array Statistics about the loop in the described format.
|
|
*/
|
|
public function getInfo(): array {
|
|
$watchers = [
|
|
"referenced" => 0,
|
|
"unreferenced" => 0,
|
|
];
|
|
|
|
$defer = $delay = $repeat = $onReadable = $onWritable = $onSignal = [
|
|
"enabled" => 0,
|
|
"disabled" => 0,
|
|
];
|
|
|
|
foreach ($this->watchers as $watcher) {
|
|
switch ($watcher->type) {
|
|
case Watcher::READABLE:
|
|
$array = &$onReadable;
|
|
break;
|
|
case Watcher::WRITABLE:
|
|
$array = &$onWritable;
|
|
break;
|
|
case Watcher::SIGNAL:
|
|
$array = &$onSignal;
|
|
break;
|
|
case Watcher::DEFER:
|
|
$array = &$defer;
|
|
break;
|
|
case Watcher::DELAY:
|
|
$array = &$delay;
|
|
break;
|
|
case Watcher::REPEAT:
|
|
$array = &$repeat;
|
|
break;
|
|
|
|
default:
|
|
throw new \DomainException("Unknown watcher type");
|
|
}
|
|
|
|
if ($watcher->enabled) {
|
|
++$array["enabled"];
|
|
|
|
if ($watcher->referenced) {
|
|
++$watchers["referenced"];
|
|
} else {
|
|
++$watchers["unreferenced"];
|
|
}
|
|
} else {
|
|
++$array["disabled"];
|
|
}
|
|
}
|
|
|
|
return [
|
|
"enabled_watchers" => $watchers,
|
|
"defer" => $defer,
|
|
"delay" => $delay,
|
|
"repeat" => $repeat,
|
|
"on_readable" => $onReadable,
|
|
"on_writable" => $onWritable,
|
|
"on_signal" => $onSignal,
|
|
"running" => (bool) $this->running,
|
|
];
|
|
}
|
|
} |