diff --git a/README.md b/README.md index d172e68c..0b673953 100644 --- a/README.md +++ b/README.md @@ -242,33 +242,31 @@ void multi_sink_example() ``` --- -#### Register several loggers - each with a different format and log level +#### Register several loggers - change global level ```c++ // Creation of loggers. Registration of loggers. // Setting a default logger. Setting a global level to all registered loggers. void multi_loggers_example() { - auto file_sink = std::make_shared("logs/filesink.txt", true); - file_sink->set_level(spdlog::level::warning); - - spdlog::logger file_logger("file_logger", file_sink); - file_logger->set_level(spdlog::level::info); - spdlog::register_logger(file_logger); // register manually, because the logger created from sink, and will not be registered automatically - spdlog::set_default_logger(file_logger); + auto sink = std::make_shared("logs/sink.txt", true); + spdlog::logger logger1("logger1", sink); + spdlog::register_logger(logger1); // register manually, because the logger created from sink, and will not be registered automatically + spdlog::set_default_logger(logger1); - spdlog::info("info message to file_logger, then passed to sink, but sink will not log it, because sink set to warning level") + spdlog::info("info message to the logger1 (now specified as default)") - auto basic_logger = spdlog::basic_logger_mt("basic_logger", "logs/basic-log.txt"); // registered automatically - spdlog::set_default_logger(basic_logger); // reset default logger to basic_logger - spdlog::default_logger()->set_level(spdlog::level::trace); // set level for default logger to trace + auto logger2 = spdlog::basic_logger_mt("logger2", "logs/logger2.txt"); // registered automatically + spdlog::set_default_logger(logger2); // reset default logger to logger2 + spdlog::default_logger()->set_level(spdlog::level::trace); // set level for the default logger (logger2) to trace - spdlog::trace("trace message to the basic_logger (now specified as default)"); + spdlog::trace("trace message to the logger2 (now specified as default)"); spdlog::set_level(spdlog::level::off) // (sic!) set level for *all* registered loggers to off (disable) - file_logger.warn("warn message will not appear because level set to off"); - basic_logger.warn("warn message will not appear because level set to off"); + logger1.warn("warn message will not appear because the level set to off"); + logger2.warn("warn message will not appear because the level set to off"); + spdlog::warn("warn message will not appear because the level set to off"); } ```