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refactor example.cpp
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@ -6,15 +6,18 @@
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// spdlog usage example
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//
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#include "spdlog/spdlog.h"
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#include "spdlog/sinks/ansicolor_sink.h"
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#include <cstdlib> // EXIT_FAILURE
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#include <iostream>
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#include <memory>
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void async_example();
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void syslog_example();
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void color_example();
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namespace spd = spdlog;
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int main(int, char*[])
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{
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namespace spd = spdlog;
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try
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{
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//Create console, multithreaded logger
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@ -33,85 +36,43 @@ int main(int, char*[])
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console->info("{:>30}", "right aligned");
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console->info("{:^30}", "centered");
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//
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spd::get("console")->info("loggers can be retrieved from a global registry using the spdlog::get(logger_name) function");
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// Runtime log levels
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//
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spd::set_level(spd::level::info); //Set global log level to info
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console->debug("This message shold not be displayed!");
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console->set_level(spd::level::debug); // Set specific logger's log level
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console->debug("Now it should..");
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console->debug("This message shold be displayed..");
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//
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// Create a file rotating logger with 5mb size max and 3 rotated files
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//
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auto file_logger = spd::rotating_logger_mt("file_logger", "logs/mylogfile", 1048576 * 5, 3);
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for (int i = 0; i < 10; ++i)
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file_logger->info("{} * {} equals {:>10}", i, i, i*i);
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//
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// Create a daily logger - a new file is created every day on 2:30am
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//
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auto daily_logger = spd::daily_logger_mt("daily_logger", "logs/daily", 2, 30);
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//
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// Customize msg format for all messages
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//
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spd::set_pattern("*** [%H:%M:%S %z] [thread %t] %v ***");
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file_logger->info("This is another message with custom format");
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spd::get("console")->info("loggers can be retrieved from a global registry using the spdlog::get(logger_name) function");
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//
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// Compile time debug or trace macros.
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// Enabled #ifdef SPDLOG_DEBUG_ON or #ifdef SPDLOG_TRACE_ON
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//
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SPDLOG_TRACE(console, "Enabled only #ifdef SPDLOG_TRACE_ON..{} ,{}", 1, 3.23);
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SPDLOG_DEBUG(console, "Enabled only #ifdef SPDLOG_DEBUG_ON.. {} ,{}", 1, 3.23);
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//
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// Asynchronous logging is very fast..
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// Just call spdlog::set_async_mode(q_size) and all created loggers from now on will be asynchronous..
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//
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size_t q_size = 1048576; //queue size must be power of 2
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spdlog::set_async_mode(q_size);
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auto async_file = spd::daily_logger_st("async_file_logger", "logs/async_log.txt");
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for (int i = 0; i < 100; ++i)
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async_file->info("Async message #{}", i);
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async_example();
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//
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// syslog example. linux only..
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//
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#ifdef __linux__
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std::string ident = "spdlog-example";
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auto syslog_logger = spd::syslog_logger("syslog", ident, LOG_PID);
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syslog_logger->warn("This is warning that will end up in syslog. This is Linux only!");
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#endif
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// syslog example. linux/osx only..
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syslog_example();
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//
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// ANSI color logging (OS X and Linux. Windows only if ansi.sys is loaded.)
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//
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// terminal color example (works under linux/osx. windows: only if ansi.sys is loaded)
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color_example();
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// Create a sink to add colors to.
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auto console_out = spdlog::sinks::stderr_sink_st::instance();
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auto color_sink = std::make_shared<spd::sinks::ansicolor_sink>(console_out); // wraps around another sink
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auto color_logger = spd::details::registry::instance().create("Color", color_sink);
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color_logger->set_level(spd::level::trace);
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color_sink->setColor(spd::level::info, color_sink->bold + color_sink->green);
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color_logger->info("Testing color logger...");
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color_logger->trace("Trace");
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color_logger->debug("Debug");
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color_logger->info("Info");
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color_logger->notice("Notice");
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color_logger->warn("Warning");
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color_logger->error("Error");
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color_logger->critical("Critical");
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color_logger->alert("Alert");
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color_logger->emerg("Emergency");
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//
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//Release and close all loggers
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//
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// Release and close all loggers
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spdlog::drop_all();
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}
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@ -124,6 +85,48 @@ int main(int, char*[])
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}
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void async_example()
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{
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size_t q_size = 4096; //queue size must be power of 2
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spdlog::set_async_mode(q_size);
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auto async_file = spd::daily_logger_st("async_file_logger", "logs/async_log.txt");
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for (int i = 0; i < 100; ++i)
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async_file->info("Async message #{}", i);
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}
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//syslog example (linux/osx only)
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void syslog_example()
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{
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#if defined (__linux__) || defined(__APPLE__)
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std::string ident = "spdlog-example";
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auto syslog_logger = spd::syslog_logger("syslog", ident, LOG_PID);
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syslog_logger->warn("This is warning that will end up in syslog. This is Linux only!");
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#endif
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}
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// terminal color example (works under linux/osx. windows: only if ansi.sys is loaded)
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#include "spdlog/sinks/ansicolor_sink.h"
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void color_example()
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{
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// Create a sink to add colors to.
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auto console_out = spdlog::sinks::stderr_sink_st::instance();
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auto color_sink = std::make_shared<spd::sinks::ansicolor_sink>(console_out); // wraps around another sink
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auto color_logger = spd::details::registry::instance().create("Color", color_sink);
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color_logger->set_level(spd::level::trace);
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color_sink->setColor(spd::level::info, color_sink->bold + color_sink->green);
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color_logger->info("Testing color logger...");
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color_logger->trace("Trace");
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color_logger->debug("Debug");
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color_logger->info("Info");
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color_logger->notice("Notice");
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color_logger->warn("Warning");
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color_logger->error("Error");
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color_logger->critical("Critical");
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color_logger->alert("Alert");
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color_logger->emerg("Emergency");
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}
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// Example of user defined class with operator<<
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class some_class {};
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std::ostream& operator<<(std::ostream& os, const some_class&)
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