(event) changed eventhandling for child term to signal handler

Author: troublete

CHANGELOG.md

@@ -5,6 +5,9 @@ The format is based on [Keep a Changelog](http://keepachangelog.com/en/1.0.0/)
 and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.html).
 
 ## [Unreleased]
+## [2.1.0] - 18.10.2017
+### [Changed]
+*  signal handling for child termination to signal handler
 
 ## [2.0.0] - 18.10.2017
 ### [Added]

task.php

@@ -20,10 +20,10 @@ function forkTask(
 		throw new Exception('The task could not be forked off.');
 	}
 
-	// ingore child termination event
-	pcntl_signal(SIGCHLD, SIG_IGN);
+	// ingore child termination event	
 	if ($signalHandler !== null) {
 		pcntl_signal(SIGTERM, $signalHandler);
+		pcntl_signal(SIGCHLD, $signalHandler);
 	}
 
 	if ($processId === 0) {