Fix #414: Fixed PHP errors when PCNTL functions were disallowed

Author: brandonkelly

CHANGELOG.md

@@ -4,7 +4,7 @@ Yii2 Queue Extension Change Log
 2.3.2 under development
 -----------------------
 
-- no changes in this release.
+- Bug #414: Fixed PHP errors when PCNTL functions were disallowed (brandonkelly)
 
 
 2.3.1 December 23, 2020

src/cli/SignalLoop.php

@@ -69,7 +69,7 @@ public function __construct($queue, array $config = [])
     public function init()
     {
         parent::init();
-        if (extension_loaded('pcntl')) {
+        if (extension_loaded('pcntl') && function_exists('pcntl_signal')) {
             foreach ($this->exitSignals as $signal) {
                 pcntl_signal($signal, function () {
                     self::$exit = true;
@@ -95,7 +95,7 @@ public function init()
      */
     public function canContinue()
     {
-        if (extension_loaded('pcntl')) {
+        if (extension_loaded('pcntl') && function_exists('pcntl_signal_dispatch')) {
             pcntl_signal_dispatch();
             // Wait for resume signal until loop is suspended
             while (self::$pause && !self::$exit) {

src/drivers/amqp_interop/Queue.php

@@ -224,7 +224,7 @@ public function init()
             $this->close();
         });
 
-        if (extension_loaded('pcntl') && PHP_MAJOR_VERSION >= 7) {
+        if (extension_loaded('pcntl') && function_exists('pcntl_signal') && PHP_MAJOR_VERSION >= 7) {
             // https://github.com/php-amqplib/php-amqplib#unix-signals
             $signals = [SIGTERM, SIGQUIT, SIGINT, SIGHUP];