1 files changed, 121 insertions, 0 deletions
diff --git a/dep/include/g3dlite/G3D/GThread.h b/dep/include/g3dlite/G3D/GThread.h
new file mode 100644
index 00000000000..58437efc3fb
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+++ b/dep/include/g3dlite/G3D/GThread.h
@@ -0,0 +1,121 @@
+/** 
+  @file GThread.h
+ 
+  @created 2005-09-22
+  @edited  2007-01-31
+
+ */
+
+#ifndef G3D_GTHREAD_H
+#define G3D_GTHREAD_H
+
+#include "G3D/platform.h"
+#include "G3D/ReferenceCount.h"
+#include <string>
+
+#ifndef G3D_WIN32
+#   include <pthread.h>
+#   include <signal.h>
+#endif
+
+
+namespace G3D {
+        
+typedef ReferenceCountedPointer<class GThread> GThreadRef;
+
+/**
+ Platform independent thread implementation.  You can either subclass and 
+ override GThread::threadMain or call the create method with a method.
+
+ Beware of reference counting and threads.  If circular references exist between
+ GThread subclasses then neither class will ever be deallocated.  Also, 
+ dropping all pointers (and causing deallocation) of a GThread does NOT 
+ stop the underlying process.
+
+ @sa G3D::GMutex, G3D::Spinlock, G3D::AtomicInt32
+*/
+class GThread : public ReferenceCountedObject {
+private:
+    // "Status" is a reserved work on FreeBSD
+    enum GStatus {STATUS_CREATED, STATUS_STARTED, STATUS_RUNNING, STATUS_COMPLETED};
+
+    // Not implemented on purpose, don't use
+    GThread(const GThread &);
+    GThread& operator=(const GThread&);
+    bool operator==(const GThread&);
+
+#ifdef G3D_WIN32
+    static DWORD WINAPI internalThreadProc(LPVOID param);
+#else
+    static void* internalThreadProc(void* param);
+#endif //G3D_WIN32
+
+    volatile GStatus     m_status;
+
+    // Thread handle to hold HANDLE and pthread_t
+#ifdef G3D_WIN32
+    HANDLE              m_handle;
+    HANDLE              m_event;
+#else
+    pthread_t           m_handle;
+#endif //G3D_WIN32
+
+    std::string         m_name;
+
+protected:
+
+    /** Overriden by the thread implementor */
+    virtual void threadMain() = 0;
+
+public:
+    typedef ReferenceCountedPointer<class GThread> Ref;
+    enum SpawnBehavior {USE_NEW_THREAD, USE_CURRENT_THREAD};
+
+    GThread(const std::string& name);
+
+    virtual ~GThread();
+
+    /** Constructs a basic GThread without requiring a subclass.
+
+        @param proc The global or static function for the threadMain() */
+    static GThreadRef create(const std::string& name, void (*proc)(void*), void* param = NULL);
+
+    /** Starts the thread and executes threadMain().  Returns false if
+       the thread failed to start (either because it was already started
+       or because the OS refused).
+       
+       @param behavior If USE_CURRENT_THREAD, rather than spawning a new thread, this routine
+       runs threadMain on the current thread.
+       */
+    bool start(SpawnBehavior behavior = USE_NEW_THREAD);
+
+    /** Terminates the thread without notifying or
+        waiting for a cancelation point. */
+    void terminate();
+
+    /**
+        Returns true if threadMain is currently executing.  This will
+        only be set when the thread is actually running and might not
+        be set when start() returns. */
+    bool running() const;
+
+    /** True after start() has been called, even through the thread
+        may have already completed(), or be currently running().*/
+    bool started() const;
+
+    /** Returns true if the thread has exited. */
+    bool completed() const;
+
+    /** Waits for the thread to finish executing. */
+    void waitForCompletion();
+
+    /** Returns thread name */
+    inline const std::string& name() {
+        return m_name;
+    }
+};
+
+
+} // namespace G3D
+
+#endif //G3D_GTHREAD_H