Initial commit

src/Signal/Signal.php

@@ -0,0 +1,24 @@
+<?php
+
+namespace NoccyLabs\Ipc\Signal;
+
+
+class Signal
+{
+    private $signo;
+
+    public function __construct(int $signo)
+    {
+        $this->signo = $signo;
+    }
+
+    public function setHandler(callable $handler):void
+    {
+        pcntl_signal($this->signo, $handler);
+    }
+
+    public function dispatch($pid):bool
+    {
+        return posix_kill($pid, $this->signo);
+    }
+}

src/Signal/SignalHandler.php

@@ -0,0 +1,37 @@
+<?php
+
+namespace NoccyLabs\Ipc\Signal;
+
+
+class SignalHandler
+{
+    private $signo;
+
+    private $callbacks;
+
+    public function __construct(int $signo, array $callbacks=[])
+    {
+        $this->signo = $signo;
+        $this->callbacks = $callbacks;
+        pcntl_signal($this->signo, [ $this, "onSignal" ]);
+    }
+
+    public function __destruct()
+    {
+
+    }
+
+    public function addHandler(callable $handler):void
+    {
+        $this->callbacks[] = $handler;
+    }
+
+    public function onSignal($signo)
+    {
+        foreach ($this->callbacks as $callback) {
+            if (call_user_func($callback) === true)
+                return;
+        }
+    }
+
+}

src/Signal/SignalTrap.php

@@ -0,0 +1,32 @@
+<?php
+
+namespace NoccyLabs\Ipc\Signal;
+
+
+class SignalTrap
+{
+    protected $signal;
+
+    protected $trapped = false;
+
+    public function __construct(int $signo)
+    {
+        $this->signal = new Signal($signo);
+        $this->signal->setHandler([ $this, "onSignal" ]);
+    }
+
+    public function onSignal()
+    {
+        $this->trapped = true;
+    }
+
+    public function isTrapped($reset=true):bool
+    {
+        if ($this->trapped) {
+            $reset && ($this->trapped = false);
+            return true;
+        }
+        return false;
+    }
+
+}