Mutex.hpp

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// ANNA - Anna is Not Nothingness Anymore                                                         //
//                                                                                                //
// (c) Copyright 2005-2015 Eduardo Ramos Testillano & Francisco Ruiz Rayo                         //
//                                                                                                //
// See project site at http://redmine.teslayout.com/projects/anna-suite                           //
// See accompanying file LICENSE or copy at http://www.teslayout.com/projects/public/anna.LICENSE //


#ifndef anna_core_mt_Mutex_hpp
#define anna_core_mt_Mutex_hpp

#include <pthread.h>

#include <anna/core/mt/Safe.hpp>

namespace anna {

class Mutex : public Safe {
public:
  struct Mode { enum _v { Recursive, Strict }; };
  explicit Mutex(const Mode::_v mode = Mode::Recursive);

  virtual ~Mutex();

  virtual void lock() noexcept(false);

  virtual void unlock() ;

  bool trylock() noexcept(false);

  operator const pthread_mutex_t*() const {
#ifdef _MT
    return &a_id;
#else
    return NULL;
#endif
  }

private:
#ifdef _MT
  pthread_mutex_t a_id;
#endif

  Mutex(const Mutex& other);
};

#define anna_declare_mutex(ClassName) \
   anna::Mutex a_autoMutex; \
   void lock () noexcept(false) { a_autoMutex.lock (); } \
   void unlock () { a_autoMutex.unlock (); } \
   friend class anna::Guard <ClassName >;

#define anna_access_mutex a_autoMutex

} //namespace anna

#endif