Version 4.2.0

include/Mutex.h

@@ -0,0 +1,70 @@
+/***************************************************/
+/*! \class Mutex
+    \brief STK mutex class.
+
+    This class provides a uniform interface for
+    cross-platform mutex use.  On Linux and IRIX
+    systems, the pthread library is used. Under
+    Windows, critical sections are used.
+
+    by Perry R. Cook and Gary P. Scavone, 1995 - 2004.
+*/
+/***************************************************/
+
+#ifndef STK_MUTEX_H
+#define STK_MUTEX_H
+
+#include "Stk.h"
+
+#if (defined(__OS_IRIX__) || defined(__OS_LINUX__) || defined(__OS_MACOSX__))
+
+  #include <pthread.h>
+  typedef pthread_mutex_t MUTEX;
+  typedef pthread_cond_t CONDITION;
+
+#elif defined(__OS_WINDOWS__)
+
+  #include <windows.h>
+  #include <process.h>
+  typedef CRITICAL_SECTION MUTEX;
+  typedef HANDLE CONDITION;
+
+#endif
+
+class Mutex : public Stk
+{
+ public:
+  //! Default constructor.
+  Mutex();
+
+  //! Class destructor.
+  ~Mutex();
+
+  //! Lock the mutex.
+  void lock(void);
+
+  //! Unlock the mutex.
+  void unlock(void);
+
+  //! Wait indefinitely on the mutex condition variable.
+  /*!
+    The mutex must be locked before calling this function, and then
+    subsequently unlocked after this function returns.
+   */
+  void wait(void);
+
+  //! Signal the condition variable.
+  /*!
+    The mutex must be locked before calling this function, and then
+    subsequently unlocked after this function returns.
+   */
+  void signal(void);
+
+ protected:
+
+  MUTEX mutex_;
+  CONDITION condition_;
+
+};
+
+#endif