Add pcntl signals test

Author: nikic

ext/pcntl/tests/async_signals_2.phpt

@@ -0,0 +1,29 @@
+--TEST--
+Async signals in zend_call_function
+--SKIPIF--
+<?php
+if (!extension_loaded("pcntl")) print "skip";
+if (getenv("SKIP_SLOW_TESTS")) print "skip slow test";
+?>
+--FILE--
+<?php
+
+pcntl_async_signals(1);
+pcntl_signal(SIGALRM, function($signo) {
+    throw new Exception("Alarm!");
+});
+
+pcntl_alarm(1);
+try {
+    array_map(
+        'time_nanosleep',
+        array_fill(0, 360, 1),
+        array_fill(0, 360, 0)
+    );
+} catch (Exception $e) {
+    echo $e->getMessage(), "\n";
+}
+
+?>
+--EXPECT--
+Alarm!