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/* | ||
* This program is free software; you can redistribute it and/or modify | ||
* it under the terms of the GNU General Public License as published by | ||
* the Free Software Foundation; either version 2 of the License, or | ||
* (at your option) any later version. | ||
* | ||
* This program is distributed in the hope that it will be useful, | ||
* but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
* GNU General Public License for more details. | ||
* | ||
* You should have received a copy of the GNU General Public License | ||
* along with this program; if not, write to the Free Software | ||
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | ||
*/ | ||
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#include "TimePeriod.h" | ||
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#ifdef _WIN32 | ||
#include <Windows.h> | ||
#pragma comment(lib, "Winmm.lib") | ||
#endif | ||
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// That's right, this only does something on Windows | ||
ScopedTimerPeriod set_time_period(const std::chrono::milliseconds ms) | ||
{ | ||
#ifdef _WIN32 | ||
auto count = ms.count(); | ||
const auto result = timeBeginPeriod(count); | ||
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ScopedTimerPeriod sf(result == TIMERR_NOERROR, [count] | ||
{ | ||
timeEndPeriod(count); | ||
}); | ||
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return sf; | ||
#else | ||
return { true, [] {} }; | ||
#endif | ||
} |
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/* | ||
* This program is free software; you can redistribute it and/or modify | ||
* it under the terms of the GNU General Public License as published by | ||
* the Free Software Foundation; either version 2 of the License, or | ||
* (at your option) any later version. | ||
* | ||
* This program is distributed in the hope that it will be useful, | ||
* but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
* GNU General Public License for more details. | ||
* | ||
* You should have received a copy of the GNU General Public License | ||
* along with this program; if not, write to the Free Software | ||
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | ||
*/ | ||
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#ifndef _TIMEPERIOD_H | ||
#define _TIMEPERIOD_H | ||
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#include <chrono> | ||
#include <functional> | ||
#include <utility> | ||
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/* | ||
* Allows for setting the timer period, ensuring that | ||
* it's reset to its original value when leaving scope | ||
*/ | ||
class ScopedTimerPeriod final | ||
{ | ||
public: | ||
using Callback = std::function<void()>; | ||
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ScopedTimerPeriod(bool success, Callback cb): success_(success), cb_(std::move(cb)) {} | ||
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bool success() const | ||
{ | ||
return success_; | ||
} | ||
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~ScopedTimerPeriod() | ||
{ | ||
cb_(); | ||
} | ||
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private: | ||
Callback cb_; | ||
bool success_; | ||
}; | ||
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ScopedTimerPeriod set_time_period(std::chrono::milliseconds ms); | ||
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#endif |