From 7e5d7264ae02b054e368a6c08bc6083f093d23e7 Mon Sep 17 00:00:00 2001
From: Thulinma <jaron@vietors.com>
Date: Mon, 15 Dec 2014 18:16:08 +0100
Subject: [PATCH] Fixed race condition when disconnecting shared memory client
 elements.

---
 lib/shared_memory.cpp | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/lib/shared_memory.cpp b/lib/shared_memory.cpp
index 85dd0d16..a436df59 100644
--- a/lib/shared_memory.cpp
+++ b/lib/shared_memory.cpp
@@ -718,6 +718,7 @@ namespace IPC {
       empty = (char *)malloc(payLen * sizeof(char));
       memset(empty, 0, payLen);
     }
+    semGuard tmpGuard(&mySemaphore);
     unsigned int id = 0;
     for (std::set<sharedPage>::iterator it = myPages.begin(); it != myPages.end(); it++) {
       if (!it->mapped || !it->len) {
@@ -915,6 +916,7 @@ namespace IPC {
       return;
     }
     if (myPage.mapped) {
+      semGuard tmpGuard(&mySemaphore);
       myPage.mapped[offsetOnPage] = 127;
     }
   }