thread_lock.h

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// AUTOMATICALLY GENERATED -- DO NOT EDIT!         -*- c++ -*-

#ifndef thread_lock_h
#define thread_lock_h

#include "switch_lock.h"
#include "context.h"            // Switch_hint
#include "panic.h"

//
// INTERFACE definition follows 
//


enum Switch_hint
{
  SWITCH_ACTIVATE_HIGHER = 0,   // Activate thread with higher priority
  SWITCH_ACTIVATE_LOCKEE,       // Activate thread that was locked
};

class Thread_lock
{
private:
  Switch_lock _switch_lock;
  Switch_hint _switch_hint;

  void lock_utcb();
  void unlock_utcb();


public:  
  inline void set_switch_hint(Switch_hint const hint);
  
  bool const test_and_set();
  
  inline void lock();
  
  void clear();
  
  inline Context * const lock_owner() const;
  
  inline bool const test();

private:  
  inline Context * const context() const;
};

//
// IMPLEMENTATION includes follow (for use by inline functions)
//


#include "globals.h"

//
// IMPLEMENTATION of inline functions (and needed classes)
//



inline void
Thread_lock::set_switch_hint(Switch_hint const hint)
{
  _switch_hint = hint;
}


inline void
Thread_lock::lock()
{
  check (test_and_set() == false);
}


inline Context * const
Thread_lock::lock_owner() const
{
  return _switch_lock.lock_owner();
}


inline bool const
Thread_lock::test()
{
  return _switch_lock.test();
}


inline void
Thread_lock::lock_utcb() {}


inline void
Thread_lock::unlock_utcb() {}

#endif // thread_lock_h

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