ThreadLock.h

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/*
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   The MIT License

   Copyright (c) 2009 Scientific Computing and Imaging Institute,
   University of Utah.

   
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///
///@file  ThreadLock.h  
///@brief Mutex that is lockable multiple times within the same thread
///
///@author
///       McKay Davis / Steven G. Parker
///       Department of Computer Science
///       University of Utah
///@date  August 1994
///

#ifndef SCIRun_Core_Thread_ThreadLock_h
#define SCIRun_Core_Thread_ThreadLock_h

#include <Core/Thread/Legacy/Mutex.h>
#include <Core/Thread/Legacy/Thread.h>
#include <Core/Thread/Legacy/share.h>

namespace SCIRun {

class SCISHARE ThreadLock {
public:
  ThreadLock(const char *);
  void          lock();
  int           try_lock();
  void          unlock();
private:
  Mutex         mutex_;
  Thread *      owner_;
  int           count_;
};

} // End namespace SCIRun


#endif