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
23 #include <dpl/waitable_event.h>
24 #include <sys/select.h>
32 WaitableEvent::WaitableEvent()
34 if (pipe(m_pipe) == -1)
35 Throw(Exception::CreateFailed);
37 if (fcntl(m_pipe[0], F_SETFL, O_NONBLOCK | fcntl(m_pipe[0], F_GETFL)) == -1)
38 Throw(Exception::CreateFailed);
41 WaitableEvent::~WaitableEvent()
43 if (TEMP_FAILURE_RETRY(close(m_pipe[0])) == -1)
44 Throw(Exception::DestroyFailed);
46 if (TEMP_FAILURE_RETRY(close(m_pipe[1])) == -1)
47 Throw(Exception::DestroyFailed);
50 WaitableHandle WaitableEvent::GetHandle() const
55 void WaitableEvent::Signal() const
59 if (TEMP_FAILURE_RETRY(write(m_pipe[1], &data, 1)) != 1)
60 Throw(Exception::SignalFailed);
63 void WaitableEvent::Reset() const
67 if (TEMP_FAILURE_RETRY(read(m_pipe[0], &data, 1)) != 1)
68 Throw(Exception::ResetFailed);