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/*
* Copyright (c) 2000 - 2014 Samsung Electronics Co., Ltd All Rights Reserved
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License
*/
/*
* @file test_watched-thread.h
* @author Krzysztof Jackiewicz (k.jackiewicz@samsung.com)
* @version 1.0
*/
#pragma once
#include <functional>
#include <thread>
#include <utility>
#include <boost/test/test_tools.hpp>
#include <dpl/exception.h>
#include <noncopyable.h>
// Error handling in threads
DECLARE_EXCEPTION_TYPE(CKM::Exception, ThreadErrorMessage)
template <typename F, typename... Args>
class WatchedThread {
public:
// can't use rreferences for Args because std::thread needs to copy all arguments
explicit WatchedThread(F &&function, const Args &... args) :
m_function(std::move(function)),
m_thread(&WatchedThread::Wrapper, this, args...) {}
~WatchedThread()
{
m_thread.join();
if (!m_error.empty())
BOOST_FAIL(m_error);
}
NONCOPYABLE(WatchedThread);
WatchedThread(WatchedThread &&) = default;
WatchedThread &operator=(WatchedThread &&) = default;
protected:
void Wrapper(const Args &... args)
{
try {
m_function(args...);
} catch (const ThreadErrorMessage &e) {
m_error = e.DumpToString();
}
}
std::string m_error;
F m_function;
std::thread m_thread;
};
template <typename F, typename... Args>
WatchedThread<F, Args...> CreateWatchedThread(F &&function,
const Args &... args)
{
return WatchedThread<F, Args...>(std::move(function), args...);
}
#define THREAD_REQUIRE_MESSAGE(expr, message) \
do { \
if (!(expr)) \
ThrowMsg(ThreadErrorMessage, message); \
} while (false);
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