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git-vendor-name: easylogging git-vendor-dir: vendor/github.com/muflihun/easyloggingpp git-vendor-repository: https://github.com/muflihun/easyloggingpp git-vendor-ref: master
59 lines
2.3 KiB
C++
59 lines
2.3 KiB
C++
//
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// This file is part of Easylogging++ samples
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// PerformanceTrackingCallback sample to customize performance output
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//
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// Revision 1.0
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// @author mkhan3189
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//
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#include "easylogging++.h"
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INITIALIZE_EASYLOGGINGPP
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class MyPerformanceTrackingOutput : public el::PerformanceTrackingCallback {
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public:
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MyPerformanceTrackingOutput() {
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el::PerformanceTrackingCallback* defaultCallback =
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el::Helpers::performanceTrackingCallback<el::base::DefaultPerformanceTrackingCallback>("DefaultPerformanceTrackingCallback");
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defaultCallback->setEnabled(false);
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}
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virtual ~MyPerformanceTrackingOutput() {
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el::PerformanceTrackingCallback* defaultCallback =
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el::Helpers::performanceTrackingCallback<el::base::DefaultPerformanceTrackingCallback>("DefaultPerformanceTrackingCallback");
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defaultCallback->setEnabled(true);
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}
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protected:
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void handle(const el::PerformanceTrackingData* data) {
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if (data->firstCheckpoint()) { return; } // ignore first check point
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el::base::type::stringstream_t ss;
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ss << data->blockName()->c_str() << " took " << *data->formattedTimeTaken() << " to run";
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if (data->dataType() == el::PerformanceTrackingData::DataType::Checkpoint) {
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ss << " [CHECKPOINT ONLY] ";
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}
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CLOG(INFO, data->loggerId().c_str()) << ss.str();
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}
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};
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int main(void) {
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TIMED_SCOPE(mainBlock, "main");
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el::Helpers::installPerformanceTrackingCallback<MyPerformanceTrackingOutput>("MyPerformanceTrackingOutput");
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{
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TIMED_SCOPE(timer, "myblock");
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for (int i = 0; i <= 500; ++i) {
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// Spend time
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for (int j = 0; j < 10000; ++j) { std::string tmp; }
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if (i % 100 == 0) {
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timer->checkpoint(std::string(std::string("checkpoint at ") + std::to_string(static_cast<unsigned long long>(i))).c_str());
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}
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}
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}
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LOG(INFO) << "By now, you should get performance result of above scope";
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el::Helpers::uninstallPerformanceTrackingCallback<MyPerformanceTrackingOutput>("MyPerformanceTrackingOutput");
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// You will get "main" block in normal format (default)
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// Now that we have uninstalled our custom callback we should get our default call back enabled (see destructor of MyPerformanceTrackingOutput above)
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return 0;
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}
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