From 52b06b5afc5cda3e4e2266a8f1c0adec6638069f Mon Sep 17 00:00:00 2001
From: FusionPBX <markjcrane@gmail.com>
Date: Tue, 30 Aug 2022 14:45:09 -0600
Subject: [PATCH] Use /proc/$pid if posix_getsid is undefined

---
 .../resources/service/email_queue.php         | 24 ++++++++++++++-----
 1 file changed, 18 insertions(+), 6 deletions(-)

diff --git a/app/email_queue/resources/service/email_queue.php b/app/email_queue/resources/service/email_queue.php
index 7922501b0a..aa032a0d2f 100644
--- a/app/email_queue/resources/service/email_queue.php
+++ b/app/email_queue/resources/service/email_queue.php
@@ -58,15 +58,27 @@
 		$exists = false;
 
 		//check to see if the process is running
-		if (function_exists(posix_getsid) && file_exists($file)) {
+		if (file_exists($file)) {
 			$pid = file_get_contents($file);
-			if (posix_getsid($pid) === false) { 
-				//process is not running
-				$exists = false;
+			if (function_exists(posix_getsid)) {
+				if (posix_getsid($pid) === false) { 
+					//process is not running
+					$exists = false;
+				}
+				else {
+					//process is running
+					$exists = true;
+				}
 			}
 			else {
-				//process is running
-				$exists = true;
+				if (file_exists('/proc/'.$pid)) {
+					//process is running
+					$exists = true;
+				}
+				else {
+					//process is not running
+					$exists = false;
+				}
 			}
 		}