// // Event_POSIX.h // // $Id: //poco/1.4/Foundation/include/Poco/Event_POSIX.h#1 $ // // Library: Foundation // Package: Threading // Module: Event // // Definition of the EventImpl class for POSIX Threads. // // Copyright (c) 2004-2006, Applied Informatics Software Engineering GmbH. // and Contributors. // // SPDX-License-Identifier: BSL-1.0 // #ifndef Foundation_Event_POSIX_INCLUDED #define Foundation_Event_POSIX_INCLUDED #include "Poco/Foundation.h" #include "Poco/Exception.h" #include #include namespace Poco { class Foundation_API EventImpl { public: enum EventTypeImpl { EVENT_MANUALRESET_IMPL, EVENT_AUTORESET_IMPL }; protected: EventImpl(EventTypeImpl type); ~EventImpl(); void setImpl(); void waitImpl(); bool waitImpl(long milliseconds); void resetImpl(); private: bool _auto; volatile bool _state; pthread_mutex_t _mutex; pthread_cond_t _cond; }; // // inlines // inline void EventImpl::setImpl() { if (pthread_mutex_lock(&_mutex)) throw SystemException("cannot signal event (lock)"); _state = true; if (pthread_cond_broadcast(&_cond)) { pthread_mutex_unlock(&_mutex); throw SystemException("cannot signal event"); } pthread_mutex_unlock(&_mutex); } inline void EventImpl::resetImpl() { if (pthread_mutex_lock(&_mutex)) throw SystemException("cannot reset event"); _state = false; pthread_mutex_unlock(&_mutex); } } // namespace Poco #endif // Foundation_Event_POSIX_INCLUDED