comparison Mutex.h @ 3:134313c59d82

* Add global mutex to PyPlugin -- all plugin method calls are strictly
  serialised in order to avoid problems with Python interpreter's lack of
  thread safety.

+/* -*- c-basic-offset: 4 indent-tabs-mode: nil -*-  vi:set ts=8 sts=4 sw=4: */
+
+/*
+   Basic cross-platform mutex abstraction class.
+   This file copyright 2007 Chris Cannam.
+*/
+
+#ifndef _MUTEX_H_
+#define _MUTEX_H_
+
+#ifdef _WIN32
+#include <windows.h>
+#else
+#include <pthread.h>
+#endif
+
+class Mutex
+{
+public:
+    Mutex();
+    ~Mutex();
+
+    void lock();
+    void unlock();
+    bool trylock();
+
+private:
+#ifdef _WIN32
+    HANDLE m_mutex;
+#ifndef NO_THREAD_CHECKS
+    DWORD m_lockedBy;
+#endif
+#else
+    pthread_mutex_t m_mutex;
+#ifndef NO_THREAD_CHECKS
+    pthread_t m_lockedBy;
+    bool m_locked;
+#endif
+#endif
+};
+
+class MutexLocker
+{
+public:
+    MutexLocker(Mutex *);
+    ~MutexLocker();
+
+private:
+    Mutex *m_mutex;
+};
+
+#endif
+