Added SharedMemoryChannel and its comparison with other methods

server/mutex.cpp

@@ -0,0 +1,26 @@
+#include <string>
+
+#include "mutex.h"
+
+using namespace std;
+
+void LockMutex(pthread_mutex_t &m)
+{
+	int mres;
+	while ((mres = pthread_mutex_lock(&m)) != 0)
+	{
+		if (mres != EAGAIN)
+		{
+			throw (string)("Fatal error acquiring mutex");
+		}
+	}
+}
+
+void ReleaseMutex(pthread_mutex_t &m)
+{
+	int mres = pthread_mutex_unlock(&m);
+	if (mres != 0)
+	{
+		throw (string)("Error releasing mutex");
+	}
+}