diff options
Diffstat (limited to 'src/OSSupport/Event.h')
| -rw-r--r-- | src/OSSupport/Event.h | 33 |
1 files changed, 17 insertions, 16 deletions
diff --git a/src/OSSupport/Event.h b/src/OSSupport/Event.h index e2fa65a05..5818115be 100644 --- a/src/OSSupport/Event.h +++ b/src/OSSupport/Event.h @@ -1,16 +1,17 @@ // Event.h -// Interfaces to the cEvent object representing an OS-specific synchronization primitive that can be waited-for -// Implemented as an Event on Win and as a 1-semaphore on *nix +// Interfaces to the cEvent object representing a synchronization primitive that can be waited-for +// Implemented using C++11 condition variable and mutex #pragma once -#ifndef CEVENT_H_INCLUDED -#define CEVENT_H_INCLUDED + +#include <mutex> +#include <condition_variable> @@ -20,9 +21,13 @@ class cEvent { public: cEvent(void); - ~cEvent(); + /** Waits until the event has been set. + If the event has been set before it has been waited for, Wait() returns immediately. */ void Wait(void); + + /** Sets the event - releases one thread that has been waiting in Wait(). + If there was no thread waiting, the next call to Wait() will not block. */ void Set (void); /** Waits for the event until either it is signalled, or the (relative) timeout is passed. @@ -31,20 +36,16 @@ public: private: - #ifdef _WIN32 - HANDLE m_Event; - #else - sem_t * m_Event; - bool m_bIsNamed; - #endif -} ; - - - + /** Used for checking for spurious wakeups. */ + bool m_ShouldWait; + /** Mutex protecting m_ShouldWait from multithreaded access. */ + std::mutex m_Mutex; + /** The condition variable used as the Event. */ + std::condition_variable m_CondVar; +} ; -#endif // CEVENT_H_INCLUDED |