Class Mutex

include/thundersvm/util/log.h:953–1005

@brief A mutex wrapper for compiler that dont yet support std::recursive_mutex

namespace internal {
/// @brief A mutex wrapper for compiler that dont yet support std::recursive_mutex
class Mutex : base::NoCopy {
 public:
  Mutex(void) {
#  if ELPP_OS_UNIX
    pthread_mutexattr_t attr;
    pthread_mutexattr_init(&attr);
    pthread_mutexattr_settype(&attr, PTHREAD_MUTEX_RECURSIVE);
    pthread_mutex_init(&m_underlyingMutex, &attr);
    pthread_mutexattr_destroy(&attr);
#  elif ELPP_OS_WINDOWS
    InitializeCriticalSection(&m_underlyingMutex);
#  endif  // ELPP_OS_UNIX
  }

  virtual ~Mutex(void) {
#  if ELPP_OS_UNIX
    pthread_mutex_destroy(&m_underlyingMutex);
#  elif ELPP_OS_WINDOWS
    DeleteCriticalSection(&m_underlyingMutex);
#  endif  // ELPP_OS_UNIX
  }

  inline void lock(void) {
#  if ELPP_OS_UNIX
    pthread_mutex_lock(&m_underlyingMutex);
#  elif ELPP_OS_WINDOWS
    EnterCriticalSection(&m_underlyingMutex);
#  endif  // ELPP_OS_UNIX
  }

  inline bool try_lock(void) {
#  if ELPP_OS_UNIX
    return (pthread_mutex_trylock(&m_underlyingMutex) == 0);
#  elif ELPP_OS_WINDOWS
    return TryEnterCriticalSection(&m_underlyingMutex);
#  endif  // ELPP_OS_UNIX
  }

  inline void unlock(void) {
#  if ELPP_OS_UNIX
    pthread_mutex_unlock(&m_underlyingMutex);
#  elif ELPP_OS_WINDOWS
    LeaveCriticalSection(&m_underlyingMutex);
#  endif  // ELPP_OS_UNIX
  }

 private:
#  if ELPP_OS_UNIX
  pthread_mutex_t m_underlyingMutex;
#  elif ELPP_OS_WINDOWS
  CRITICAL_SECTION m_underlyingMutex;
#  endif  // ELPP_OS_UNIX
};
/// @brief Scoped lock for compiler that dont yet support std::lock_guard
template <typename M>
class ScopedLock : base::NoCopy {