71 lines
1.9 KiB
C++
71 lines
1.9 KiB
C++
#include <logger/logger.hpp>
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#include <lt_debug/instrumentor.hpp>
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namespace lt {
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void Instrumentor::begin_session_impl(const std::string &outputPath)
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{
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std::filesystem::create_directory(outputPath.substr(0, outputPath.find_last_of('/') + 1));
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m_output_file_stream.open(outputPath);
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m_output_file_stream << "{\"traceEvents\":[";
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}
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void Instrumentor::end_session_impl()
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{
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if (m_current_session_count == 0u)
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{
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log_wrn("0 profiling for the ended session");
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}
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m_current_session_count = 0u;
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m_output_file_stream << "]}";
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m_output_file_stream.flush();
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m_output_file_stream.close();
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}
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void Instrumentor::submit_scope_profile_impl(const ScopeProfileResult &profileResult)
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{
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if (m_current_session_count++ == 0u)
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{
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m_output_file_stream << "{";
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}
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else
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{
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m_output_file_stream << ",{";
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}
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m_output_file_stream << R"("name":")" << profileResult.name << "\",";
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m_output_file_stream << R"("cat": "scope",)";
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m_output_file_stream << R"("ph": "X",)";
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m_output_file_stream << "\"ts\":" << profileResult.start << ",";
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m_output_file_stream << "\"dur\":" << profileResult.duration << ",";
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m_output_file_stream << "\"pid\":0,";
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m_output_file_stream << "\"tid\":" << profileResult.threadID << "";
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m_output_file_stream << "}";
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}
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InstrumentorTimer::InstrumentorTimer(const std::string &scopeName)
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: m_result({ .name = scopeName, .start = 0, .duration = 0, .threadID = 0 })
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, m_start(std::chrono::steady_clock::now())
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{
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}
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InstrumentorTimer::~InstrumentorTimer()
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{
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auto end = std::chrono::steady_clock::now();
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m_result.start = std::chrono::time_point_cast<std::chrono::microseconds>(m_start)
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.time_since_epoch()
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.count();
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m_result.duration = std::chrono::time_point_cast<std::chrono::microseconds>(end)
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.time_since_epoch()
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.count()
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- m_result.start;
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Instrumentor::submit_scope_profile(m_result);
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}
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} // namespace lt
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