60 lines
2.1 KiB
C++
60 lines
2.1 KiB
C++
#pragma once
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#ifndef MESSMER_CRYFSCLI_CALLAFTERTIMEOUT_H
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#define MESSMER_CRYFSCLI_CALLAFTERTIMEOUT_H
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#include <functional>
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#include <mutex>
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#include <cpp-utils/thread/LoopThread.h>
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namespace cryfs_cli {
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class CallAfterTimeout final {
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public:
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CallAfterTimeout(boost::chrono::milliseconds timeout, std::function<void()> callback, const std::string& timeoutName);
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void resetTimer();
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private:
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bool _checkTimeoutThreadIteration();
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boost::chrono::time_point<boost::chrono::steady_clock> _targetTime();
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bool _callCallbackIfTimeout();
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std::function<void()> _callback;
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boost::chrono::milliseconds _timeout;
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boost::chrono::time_point<boost::chrono::steady_clock> _start;
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cpputils::LoopThread _checkTimeoutThread;
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std::mutex _mutex;
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DISALLOW_COPY_AND_ASSIGN(CallAfterTimeout);
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};
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inline CallAfterTimeout::CallAfterTimeout(boost::chrono::milliseconds timeout, std::function<void()> callback, const std::string& timeoutName)
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:_callback(std::move(callback)), _timeout(timeout), _start(), _checkTimeoutThread(std::bind(&CallAfterTimeout::_checkTimeoutThreadIteration, this), "timeout_" + timeoutName) {
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resetTimer();
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_checkTimeoutThread.start();
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}
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inline void CallAfterTimeout::resetTimer() {
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std::unique_lock<std::mutex> lock(_mutex);
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_start = boost::chrono::steady_clock::now();
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}
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inline bool CallAfterTimeout::_checkTimeoutThreadIteration() {
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boost::this_thread::sleep_until(_targetTime());
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return _callCallbackIfTimeout();
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}
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inline boost::chrono::time_point<boost::chrono::steady_clock> CallAfterTimeout::_targetTime() {
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std::unique_lock<std::mutex> lock(_mutex);
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return _start + _timeout;
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}
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inline bool CallAfterTimeout::_callCallbackIfTimeout() {
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std::unique_lock<std::mutex> lock(_mutex);
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if (boost::chrono::steady_clock::now() >= _start + _timeout) {
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_callback();
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return false; // Stop thread
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}
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return true; // Continue thread
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}
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}
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#endif
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