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Diffstat (limited to 'src/pathfinder/pf_performance_timer.hpp')
-rw-r--r-- | src/pathfinder/pf_performance_timer.hpp | 82 |
1 files changed, 82 insertions, 0 deletions
diff --git a/src/pathfinder/pf_performance_timer.hpp b/src/pathfinder/pf_performance_timer.hpp new file mode 100644 index 000000000..a7b3fda5e --- /dev/null +++ b/src/pathfinder/pf_performance_timer.hpp @@ -0,0 +1,82 @@ +/* $Id$ */ + +/* + * This file is part of OpenTTD. + * OpenTTD 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, version 2. + * OpenTTD 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 OpenTTD. If not, see <http://www.gnu.org/licenses/>. + */ + +/** @file pf_performance_timer.hpp Performance timer for pathfinders. */ + +#ifndef PF_PERFORMANCE_TIMER_HPP +#define PF_PERFORMANCE_TIMER_HPP + +extern uint64 ottd_rdtsc(); + +struct CPerformanceTimer +{ + int64 m_start; + int64 m_acc; + + CPerformanceTimer() : m_start(0), m_acc(0) {} + + FORCEINLINE void Start() + { + m_start = QueryTime(); + } + + FORCEINLINE void Stop() + { + m_acc += QueryTime() - m_start; + } + + FORCEINLINE int Get(int64 coef) + { + return (int)(m_acc * coef / QueryFrequency()); + } + + FORCEINLINE int64 QueryTime() + { + return ottd_rdtsc(); + } + + FORCEINLINE int64 QueryFrequency() + { + return ((int64)2200 * 1000000); + } +}; + +struct CPerfStartReal +{ + CPerformanceTimer *m_pperf; + + FORCEINLINE CPerfStartReal(CPerformanceTimer& perf) : m_pperf(&perf) + { + if (m_pperf != NULL) m_pperf->Start(); + } + + FORCEINLINE ~CPerfStartReal() + { + Stop(); + } + + FORCEINLINE void Stop() + { + if (m_pperf != NULL) { + m_pperf->Stop(); + m_pperf = NULL; + } + } +}; + +struct CPerfStartFake +{ + FORCEINLINE CPerfStartFake(CPerformanceTimer& perf) {} + FORCEINLINE ~CPerfStartFake() {} + FORCEINLINE void Stop() {} +}; + +typedef CPerfStartFake CPerfStart; + +#endif /* PF_PERFORMANCE_TIMER_HPP */ |