2 * Copyright (c) 2011 Samsung Electronics Co., Ltd All Rights Reserved
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
8 * http://www.apache.org/licenses/LICENSE-2.0
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
17 * @file waitable_event.cpp
18 * @author Przemyslaw Dobrowolski (p.dobrowolsk@samsung.com)
20 * @brief This file is the implementation file of waitable event
22 #include <dpl/waitable_event.h>
23 #include <sys/select.h>
31 WaitableEvent::WaitableEvent()
33 if (pipe(m_pipe) == -1)
34 Throw(Exception::CreateFailed);
36 if (fcntl(m_pipe[0], F_SETFL, O_NONBLOCK | fcntl(m_pipe[0], F_GETFL)) == -1)
37 Throw(Exception::CreateFailed);
40 WaitableEvent::~WaitableEvent()
42 if (TEMP_FAILURE_RETRY(close(m_pipe[0])) == -1)
43 Throw(Exception::DestroyFailed);
45 if (TEMP_FAILURE_RETRY(close(m_pipe[1])) == -1)
46 Throw(Exception::DestroyFailed);
49 WaitableHandle WaitableEvent::GetHandle() const
54 void WaitableEvent::Signal() const
58 if (TEMP_FAILURE_RETRY(write(m_pipe[1], &data, 1)) != 1)
59 Throw(Exception::SignalFailed);
62 void WaitableEvent::Reset() const
66 if (TEMP_FAILURE_RETRY(read(m_pipe[0], &data, 1)) != 1)
67 Throw(Exception::ResetFailed);