Initial checkin1.5.6

1 files changed, 73 insertions, 0 deletions

diff --git a/src/mutex.cpp b/src/mutex.cpp
new file mode 100644
index 000000000..1b6c7b2d6
--- /dev/null
+++ b/src/mutex.cpp
@@ -0,0 +1,73 @@
+/*************************************************
+* Mutex Source File                              *
+* (C) 1999-2006 The Botan Project                *
+*************************************************/
+
+#include <botan/mutex.h>
+
+namespace Botan {
+
+namespace {
+
+/*************************************************
+* Default Mutex                                  *
+*************************************************/
+class Default_Mutex : public Mutex
+   {
+   public:
+      void lock();
+      void unlock();
+      Default_Mutex() { locked = false; }
+   private:
+      bool locked;
+   };
+
+/*************************************************
+* Lock the mutex                                 *
+*************************************************/
+void Default_Mutex::lock()
+   {
+   if(locked)
+      throw Internal_Error("Default_Mutex::lock: Mutex is already locked");
+   locked = true;
+   }
+
+/*************************************************
+* Unlock the mutex                               *
+*************************************************/
+void Default_Mutex::unlock()
+   {
+   if(!locked)
+      throw Internal_Error("Default_Mutex::unlock: Mutex is already unlocked");
+   locked = false;
+   }
+
+}
+
+/*************************************************
+* Mutex_Holder Constructor                       *
+*************************************************/
+Mutex_Holder::Mutex_Holder(Mutex* m) : mux(m)
+   {
+   if(!mux)
+      throw Invalid_Argument("Mutex_Holder: Argument was NULL");
+   mux->lock();
+   }
+
+/*************************************************
+* Mutex_Holder Destructor                        *
+*************************************************/
+Mutex_Holder::~Mutex_Holder()
+   {
+   mux->unlock();
+   }
+
+/*************************************************
+* Default Mutex Factory                          *
+*************************************************/
+Mutex* Mutex_Factory::make()
+   {
+   return new Default_Mutex;
+   }
+
+}