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C:/temp/src/j2k/Deprecated/Posix.old/RecursiveMutex.hpp

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#ifndef __J2K__PThread_RecursiveMutex_HPP__
#define __J2K__PThread_RecursiveMutex_HPP__

/*
 * A mutex for synchronizing recursive methods.
 * Use a Lock to lock and unlock a RecursiveMutex.
 *
 * If a locked RecursiveMutex is locked again by the same thread,
 * its lock count is incremented.  If it unlocked by the same
 * thread, its lock count is decremented.  When its lock count
 * reaches 0, it is unlocked.
 *
 * This class is not reference-counted; each instance is intended to be
 * encapsulated as a member variable by the object that uses it.
 */

#include <j2k/Fred/PThread/Mutex.hpp>

class RecursiveMutex : public Mutex {
public:
  RecursiveMutex();
  virtual ~RecursiveMutex();

protected:
  virtual void lock();
  virtual void unlock();
  virtual void wait();

private:
  RecursiveMutex(const RecursiveMutex& src );
  RecursiveMutex& operator=(const RecursiveMutex& right);

private:
  unsigned int lockCount;
  pthread_t    owner;
};

#endif

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