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42 lines
1.6 KiB
42 lines
1.6 KiB
#pragma once
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#include <iostream>
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#include <thread>
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#include <sstream>
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#include <iomanip>
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// Returns a timestamp string featuring microseconds precision
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// Uses system clock, so time might not pass uniformly
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inline std::string timestamp_usec() {
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std::ostringstream buffer;
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std::chrono::system_clock::duration d = std::chrono::system_clock::now().time_since_epoch();
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std::chrono::microseconds us = std::chrono::duration_cast<std::chrono::microseconds>(d);
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std::chrono::seconds s = std::chrono::duration_cast<std::chrono::seconds> (d);
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std::time_t t = s.count();
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std::tm tm = *std::localtime(&t);
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std::size_t fractional_seconds = us.count() % 1000000;
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buffer << std::put_time(&tm, "%H%:%M:%S") << "." << fractional_seconds;
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return buffer.str();
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}
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// pEpLog(msg) - logs to STDOUT
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// pEpErr(msg) - logs to STDERR
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//
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// Log format is:
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// TIMESTAMP.usecs THREAD-ID SRC_FILE_NAME::FUNCTION_NAME - msg
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//
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// example:
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// 21:06:04.214884 Thread:0x10f2ce5c0 test_peplog.cc::main - test run nr: 436744
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//
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// if -DNDEBUG=1 (for release builds), all pEpLog() calls will be optimized away.
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#ifdef NDEBUG
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#define pEpLog(msg) do{}while(0)
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#else
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#define pEpLog(msg) do{ std::cout << std::unitbuf; std::cout << timestamp_usec() << " Thread:" << std::this_thread::get_id() << ' ' <<__FILE__ << "::" << __FUNCTION__ << " - " << msg << std::endl;} while(0)
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#endif
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#define pEpErr(msg) do{ std::cerr << std::unitbuf; std::cerr << timestamp_usec() << " Thread:" << std::this_thread::get_id() << ' ' <<__FILE__ << "::" << __FUNCTION__ << " - " << msg << std::endl;} while(0)
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