Mutex.h

Go to the documentation of this file.

#pragma once
 
#include <misc/gen/TimeSpec.h>
#include <misc/global.h>
#include <pthread.h>
#include <string>
 
namespace sf
{
 
class _MISC_CLASS Mutex
{
  public:
    typedef ::pthread_mutex_t* handle_type;
 
    Mutex(const char* name = nullptr);
 
    ~Mutex();
 
    inline operator handle_type();
 
    class _MISC_CLASS Lock
    {
      public:
        explicit Lock(const Mutex& mutex, bool try_lock = false);
 
        ~Lock();
 
        bool acquire(bool try_lock = false, const TimeSpec& timeout = {});
 
        bool release();
 
        explicit operator bool() const
        {
          return _locked;
        }
 
      private:
        Lock(const Lock& lock);
 
        Mutex& _mutexRef;
        bool _locked{false};
    };
 
    friend class Condition;
 
  private:
    ::pthread_mutex_t _mutex{0};
 
    Mutex(const Mutex&);
 
    const Mutex& operator=(const Mutex&);
 
    bool isMutexDestroyed();
 
    void clearMutex();
 
    bool acquire(bool try_lock, const TimeSpec& timeout);
 
    void release();
 
    std::string _name;
 
    pid_t _threadId{-1};
};
 
inline Mutex::operator handle_type()
{
  return &_mutex;
}
 
}// namespace sf