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/****************************************************************************
* Copyright (C) from 2009 to Present EPAM Systems.
*
* This file is part of Indigo toolkit.
*
* 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.
***************************************************************************/
#include "base_cpp/cancellation_handler.h"
#include "base_c/nano.h"
#include "base_cpp/output.h"
#include "base_cpp/tlscont.h"
namespace indigo
{
//
// TimeoutCancellationHandler
//
TimeoutCancellationHandler::TimeoutCancellationHandler(int mseconds)
{
reset(mseconds);
}
TimeoutCancellationHandler::~TimeoutCancellationHandler()
{
}
bool TimeoutCancellationHandler::isCancelled()
{
qword dif_time = nanoClock() - _currentTime;
if (_mseconds > 0 && nanoHowManySeconds(dif_time) * 1000 > _mseconds)
{
ArrayOutput mes_out(_message);
mes_out.printf("The operation timed out: %d ms", _mseconds);
mes_out.writeChar(0);
return true;
}
return false;
}
const char* TimeoutCancellationHandler::cancelledRequestMessage()
{
return _message.ptr();
}
void TimeoutCancellationHandler::reset(int mseconds)
{
_mseconds = mseconds;
_currentTime = nanoClock();
}
//
// Global thread-local cancellation handler
//
class CancellationHandlerWrapper
{
public:
CancellationHandlerWrapper() : handler(nullptr)
{
}
std::unique_ptr<CancellationHandler> handler;
};
static _SessionLocalContainer<CancellationHandlerWrapper> cancellation_handler;
CancellationHandler* getCancellationHandler()
{
CancellationHandlerWrapper& wrapper = cancellation_handler.getLocalCopy();
return wrapper.handler.get();
}
std::unique_ptr<CancellationHandler> resetCancellationHandler(CancellationHandler* handler)
{
CancellationHandlerWrapper& wrapper = cancellation_handler.getLocalCopy();
std::unique_ptr<CancellationHandler> prev(wrapper.handler.release());
wrapper.handler.reset(handler);
return prev;
}
AutoCancellationHandler::AutoCancellationHandler(CancellationHandler* hand)
{
resetCancellationHandler(hand);
}
AutoCancellationHandler::~AutoCancellationHandler()
{
resetCancellationHandler(nullptr);
}
} // namespace indigo
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