crnlib/crn_mutex.h

@@ -0,0 +1,40 @@
+// File: crn_mutex.h
+// See Copyright Notice and license at the end of inc/crnlib.h
+#pragma once
+
+namespace crnlib
+{
+   class mutex
+   {
+      mutex(const mutex&);
+      mutex& operator= (const mutex&);
+      
+   public:
+      mutex(unsigned int spin_count = 0);
+      ~mutex();
+      void lock();
+      void unlock();
+      void set_spin_count(unsigned int count);
+   
+   private:
+      int m_buf[12];
+      
+#ifdef CRNLIB_BUILD_DEBUG
+      unsigned int m_lock_count;
+#endif      
+   };
+   
+   class scoped_mutex
+   {
+      scoped_mutex(const scoped_mutex&);
+      scoped_mutex& operator= (const scoped_mutex&);
+
+   public:
+      inline scoped_mutex(mutex& m) : m_mutex(m) { m_mutex.lock(); }
+      inline ~scoped_mutex() { m_mutex.unlock(); }
+
+   private:
+      mutex& m_mutex;
+   };
+
+} // namespace crnlib