91 lines
		
	
	
		
			3.8 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
			
		
		
	
	
			91 lines
		
	
	
		
			3.8 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
/*************************************************************************/
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/* spdlog - an extremely fast and easy to use c++11 logging library.     */
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/* Copyright (c) 2014 Gabi Melman.                                       */
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/*                                                                       */
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/* Permission is hereby granted, free of charge, to any person obtaining */
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/* a copy of this software and associated documentation files (the       */
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/* "Software"), to deal in the Software without restriction, including   */
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/* without limitation the rights to use, copy, modify, merge, publish,   */
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/* distribute, sublicense, and/or sell copies of the Software, and to    */
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/* permit persons to whom the Software is furnished to do so, subject to */
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/* the following conditions:                                             */
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/*                                                                       */
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/* The above copyright notice and this permission notice shall be        */
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/* included in all copies or substantial portions of the Software.       */
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/*                                                                       */
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/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,       */
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/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF    */
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/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
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/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY  */
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/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,  */
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/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE     */
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/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.                */
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/*************************************************************************/
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//
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// spdlog usage example
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//
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#include <iostream>
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#include "spdlog/spdlog.h"
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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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        std::string filename = "logs/spdlog_example";
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        // Set log level to all loggers to DEBUG and above
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        spd::set_level(spd::level::DEBUG);
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        //Create console, multithreaded logger
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        auto console = spd::stdout_logger_mt("console");
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        console->info("Welcome to spdlog!") ;
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        console->info("An info message example", "...", 1, 2, 3.5);
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        console->info() << "Streams are supported too  " << std::setw(5) << std::setfill('0') << 1;
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        //Create a file rotating logger with 5mb size max and 3 rotated files
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        auto file_logger = spd::rotating_logger_mt("file_logger", filename, 1024 * 1024 * 5, 3);
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        file_logger->info("Log file message number", 1);
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        for (int i = 0; i < 100; ++i)
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        {
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            file_logger->info(i, "in hex is", "0x") <<  std::hex << std::uppercase << i;
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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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        SPDLOG_TRACE(file_logger, "This is a trace message (only #ifdef _DEBUG)", 123);
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        //
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        // Asynchronous logging is easy..
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        // Just call spdlog::set_async_mode(max_q_size) and all created loggers from now on will be asynchronous..
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        //
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        size_t max_q_size = 100000;
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        spdlog::set_async_mode(max_q_size);
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        auto async_file= spd::daily_logger_st("async_file_logger", "logs/async_log.txt");
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        async_file->info() << "This is async log.." << "Should be very fast!";
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        //
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        // syslog example
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        //
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#ifdef __linux__
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        auto syslog_logger = spd::syslog_logger("syslog");
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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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    catch (const spd::spdlog_ex& ex)
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    {
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        std::cout << "Log failed: " << ex.what() << std::endl;
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    }
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    return 0;
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}
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