60 lines
2.6 KiB
C++
60 lines
2.6 KiB
C++
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#include "quill/Backend.h"
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#include "quill/Frontend.h"
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#include "quill/LogMacros.h"
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#include "quill/Logger.h"
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#include "quill/sinks/ConsoleSink.h"
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#include <string>
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#include <utility>
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/**
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* Trivial logging example to console
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*/
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int main()
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{
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// Start the backend thread
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quill::BackendOptions backend_options;
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quill::Backend::start(backend_options);
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// Frontend
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auto console_sink = quill::Frontend::create_or_get_sink<quill::ConsoleSink>("sink_id_1");
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quill::Logger* logger = quill::Frontend::create_or_get_logger("root", std::move(console_sink));
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// Change the LogLevel to print everything
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logger->set_log_level(quill::LogLevel::TraceL3);
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LOG_TRACE_L3(logger, "This is a log trace l3 example {}", 1);
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LOG_TRACE_L2(logger, "This is a log trace l2 example {} {}", 2, 2.3);
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LOG_TRACE_L1(logger, "This is a log trace l1 {} example", "string");
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LOG_DEBUG(logger, "This is a log debug example {}", 4);
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LOG_INFO(logger, "This is a log info example {}", sizeof(std::string));
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LOG_WARNING(logger, "This is a log warning example {}", sizeof(std::string));
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LOG_ERROR(logger, "This is a log error example {}", sizeof(std::string));
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LOG_CRITICAL(logger, "This is a log critical example {}", sizeof(std::string));
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// libfmt format specification mini language is supported
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// note: named arguments are not supported
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LOG_INFO(logger, "Support for int: {0:d}; hex: {0:x}; oct: {0:o}; bin: {0:b}", 42);
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LOG_INFO(logger, "Easy padding in numbers like {:08d}", 12);
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LOG_INFO(logger, "{:>30}", "right aligned");
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LOG_INFO(logger, "Positional arguments {1} {2} {0} ", "too", "are", "supported");
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LOG_INFO(logger, "Support for precision {:.4f}", 1.23456);
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// To log with a different format to the same sink, just create another logger
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auto console_sink_2 = quill::Frontend::get_sink("sink_id_1"); // get the created sink
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quill::Logger* logger_2 = quill::Frontend::create_or_get_logger(
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"logger_2", std::move(console_sink_2), "%(time) %(log_level:<9) %(logger:<12) %(message)");
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logger_2->set_log_level(quill::LogLevel::TraceL3);
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LOG_TRACE_L3(logger_2, "This is a log trace l3 example {}", 1);
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LOG_TRACE_L2(logger_2, "This is a log trace l2 example {} {}", 2, 2.3);
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LOG_TRACE_L1(logger_2, "This is a log trace l1 {} example", "string");
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LOG_DEBUG(logger_2, "This is a log debug example {}", 4);
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LOG_INFO(logger_2, "This is a log info example {}", sizeof(std::string));
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LOG_WARNING(logger_2, "This is a log warning example {}", sizeof(std::string));
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LOG_ERROR(logger_2, "This is a log error example {}", sizeof(std::string));
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LOG_CRITICAL(logger_2, "This is a log critical example {}", sizeof(std::string));
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}
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