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Always use fresh call stack for immediatelies in UvReactor

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This commit is contained in:
Daniel Lowrey 2014-08-08 16:39:11 -04:00
parent c1521d6d7c
commit 609cc2ddfe
1 changed files with 57 additions and 4 deletions
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61
lib/UvReactor.php
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@ -14,11 +14,13 @@ class UvReactor implements SignalReactor {
private $stopException;
private $resolution = 1000;
private $isWindows;
private $immediates = [];
private static $MODE_ONCE = 0;
private static $MODE_REPEAT = 1;
private static $MODE_STREAM = 2;
private static $MODE_SIGNAL = 3;
private static $MODE_IMMEDIATE = 4;
public function __construct($newLoop = false) {
$this->loop = $newLoop ? uv_loop_new() : uv_default_loop();
@ -48,8 +50,13 @@ class UvReactor implements SignalReactor {
if ($onStart) {
$this->immediately(function() use ($onStart) { $onStart($this); });
}
uv_run($this->loop);
$this->isRunning = false;
while ($this->isRunning) {
if ($this->immediates && !$this->doImmediates()) {
break;
}
uv_run($this->loop, \UV::RUN_NOWAIT | \UV::RUN_ONCE);
}
if ($this->stopException) {
$e = $this->stopException;
@ -58,6 +65,23 @@ class UvReactor implements SignalReactor {
}
}
private function doImmediates() {
$immediates = $this->immediates;
foreach ($immediates as $watcherId => $callback) {
$callback($this);
unset(
$this->immediates[$watcherId],
$this->watchers[$watcherId]
);
if (!$this->isRunning) {
// If a watcher stops the reactor break out of the loop
break;
}
}
return $this->isRunning;
}
/**
* Execute a single event loop iteration
*
@ -65,8 +89,16 @@ class UvReactor implements SignalReactor {
* @return void
*/
public function tick() {
if ($this->isRunning) {
return;
}
$this->isRunning = true;
uv_run_once($this->loop);
if (empty($this->immediates) || $this->doImmediates()) {
uv_run($this->loop, \UV::RUN_NOWAIT | \UV::RUN_ONCE);
}
$this->isRunning = false;
if ($this->stopException) {
@ -83,6 +115,7 @@ class UvReactor implements SignalReactor {
*/
public function stop() {
uv_stop($this->loop);
$this->isRunning = false;
}
/**
@ -92,7 +125,18 @@ class UvReactor implements SignalReactor {
* @return int Returns a unique integer watcher ID
*/
public function immediately(callable $callback) {
return $this->startTimer($callback, $msDelay = 0, $msInterval = 0, self::$MODE_ONCE);
$watcherId = $this->lastWatcherId++;
$this->immediates[$watcherId] = $callback;
$watcher = new \StdClass;
$watcher->id = $watcherId;
$watcher->mode = self::$MODE_IMMEDIATE;
$watcher->callback = $callback;
$watcher->isEnabled = true;
$this->watchers[$watcher->id] = $watcher;
return $watcherId;
}
/**
@ -327,6 +371,9 @@ class UvReactor implements SignalReactor {
case self::$MODE_SIGNAL:
uv_signal_stop($watcher->uvStruct);
break;
case self::$MODE_IMMEDIATE:
unset($this->immediates[$watcherId]);
break;
default:
uv_timer_stop($watcher->uvStruct);
break;
@ -365,6 +412,9 @@ class UvReactor implements SignalReactor {
case self::$MODE_SIGNAL:
uv_signal_stop($watcher->uvStruct);
break;
case self::$MODE_IMMEDIATE:
unset($this->immediates[$watcher->id]);
break;
default:
uv_timer_stop($watcher->uvStruct);
break;
@ -397,6 +447,9 @@ class UvReactor implements SignalReactor {
case self::$MODE_SIGNAL:
uv_signal_start($watcher->uvStruct, $watcher->callback, $watcher->signo);
break;
case self::$MODE_IMMEDIATE:
$this->immediates[$watcher->id] = $watcher->callback;
break;
default:
uv_timer_start($watcher->uvStruct, $watcher->msDelay, $watcher->msInterval, $watcher->callback);
break;