1 files changed, 50 insertions, 0 deletions
diff --git a/src/mutex/noop_mutex/mux_noop.cpp b/src/mutex/noop_mutex/mux_noop.cpp
new file mode 100644
index 000000000..5c45084fe
--- /dev/null
+++ b/src/mutex/noop_mutex/mux_noop.cpp
@@ -0,0 +1,50 @@
+/*
+* No-Op Mutex Factory
+* (C) 1999-2007 Jack Lloyd
+*
+* Distributed under the terms of the Botan license
+*/
+
+#include <botan/mux_noop.h>
+
+namespace Botan {
+
+/*
+* No-Op Mutex Factory
+*/
+Mutex* Noop_Mutex_Factory::make()
+   {
+   class Noop_Mutex : public Mutex
+      {
+      public:
+         class Mutex_State_Error : public Internal_Error
+            {
+            public:
+               Mutex_State_Error(const std::string& where) :
+                  Internal_Error("Noop_Mutex::" + where + ": " +
+                                 "Mutex is already " + where + "ed") {}
+            };
+
+         void lock()
+            {
+            if(locked)
+               throw Mutex_State_Error("lock");
+            locked = true;
+            }
+
+         void unlock()
+            {
+            if(!locked)
+               throw Mutex_State_Error("unlock");
+            locked = false;
+            }
+
+         Noop_Mutex() { locked = false; }
+      private:
+         bool locked;
+      };
+
+   return new Noop_Mutex;
+   }
+
+}