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110 lines
3.5 KiB
C++
110 lines
3.5 KiB
C++
/************************************************************************
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* file name : block.cpp
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* ----------------- :
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* creation time : 2016/02/16
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* authors : Sergey Yagovtsev, Victor Zarubkin
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* emails : yse.sey@gmail.com, v.s.zarubkin@gmail.com
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* ----------------- :
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* description : The file contains implementation of profiling blocks
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* :
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* license : Lightweight profiler library for c++
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* : Copyright(C) 2016 Sergey Yagovtsev, Victor Zarubkin
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* :
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* : This program is free software : you can redistribute it and / or modify
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* : it under the terms of the GNU General Public License as published by
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* : the Free Software Foundation, either version 3 of the License, or
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* : (at your option) any later version.
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* :
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* : This program is distributed in the hope that it will be useful,
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* : but WITHOUT ANY WARRANTY; without even the implied warranty of
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* : MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.See the
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* : GNU General Public License for more details.
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* :
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* : You should have received a copy of the GNU General Public License
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* : along with this program.If not, see <http://www.gnu.org/licenses/>.
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************************************************************************/
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#include "profiler/profiler.h"
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#include "profile_manager.h"
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#include <ctime>
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#include <chrono>
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#include <thread>
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using namespace profiler;
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#ifdef _WIN32
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decltype(LARGE_INTEGER::QuadPart) CPU_FREQUENCY = ([](){ LARGE_INTEGER freq; QueryPerformanceFrequency(&freq); return freq.QuadPart; })();
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#endif
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inline timestamp_t getCurrentTime()
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{
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#ifdef _WIN32
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//see https://msdn.microsoft.com/library/windows/desktop/dn553408(v=vs.85).aspx
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LARGE_INTEGER elapsedMicroseconds;
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if (!QueryPerformanceCounter(&elapsedMicroseconds))
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return 0;
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//elapsedMicroseconds.QuadPart *= 1000000000LL;
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//elapsedMicroseconds.QuadPart /= CPU_FREQUENCY;
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return (timestamp_t)elapsedMicroseconds.QuadPart;
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#else
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std::chrono::time_point<std::chrono::system_clock, std::chrono::nanoseconds> time_point;
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time_point = std::chrono::time_point_cast<std::chrono::nanoseconds>(std::chrono::system_clock::now());
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return time_point.time_since_epoch().count();
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#endif
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}
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BaseBlockData::BaseBlockData(timestamp_t _begin_time, block_id_t _descriptor_id)
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: m_begin(_begin_time)
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, m_end(0)
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, m_id(_descriptor_id)
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{
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}
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Block::Block(Block&& that)
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: BaseBlockData(that.m_begin, that.m_id)
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, m_name(that.m_name)
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, m_enabled(that.m_enabled)
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{
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m_end = that.m_end;
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}
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Block::Block(const BaseBlockDescriptor& _descriptor, const char* _runtimeName)
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: BaseBlockData(_descriptor.enabled() ? getCurrentTime() : 1ULL, _descriptor.id())
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, m_name(_runtimeName)
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, m_enabled(_descriptor.enabled())
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{
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}
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Block::Block(timestamp_t _begin_time, block_id_t _descriptor_id, const char* _runtimeName)
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: BaseBlockData(_begin_time, _descriptor_id)
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, m_name(_runtimeName)
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, m_enabled(true)
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{
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}
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void Block::start()
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{
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m_begin = getCurrentTime();
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}
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void Block::start(timestamp_t _time)
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{
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m_begin = _time;
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}
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void Block::finish()
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{
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m_end = getCurrentTime();
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}
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void Block::finish(timestamp_t _time)
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{
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m_end = _time;
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}
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Block::~Block()
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{
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if (!finished())
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::profiler::endBlock();
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}
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