From a077f55a4337c91c3bc9d4dfd01adc5e2090b02b Mon Sep 17 00:00:00 2001
From: Thulinma <jaron@vietors.com>
Date: Fri, 20 Jun 2014 11:27:27 +0200
Subject: [PATCH] Added semaphore fail message when a semaphore cannot be
 opened.

---
 lib/shared_memory.cpp | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/lib/shared_memory.cpp b/lib/shared_memory.cpp
index 617db539..438804e1 100644
--- a/lib/shared_memory.cpp
+++ b/lib/shared_memory.cpp
@@ -97,6 +97,9 @@ namespace IPC {
       mySem = sem_open(name, oflag);
     }
 #endif
+    if (!(*this)){
+      FAIL_MSG("Failed to open semaphore %s: %s", name, strerror(errno));
+    }
     myName = (char *)name;
   }