From 7e728869cc18cfbb5d7ad50d82f6b7677c15b4d9 Mon Sep 17 00:00:00 2001 From: gabime Date: Thu, 22 Aug 2019 19:48:11 +0300 Subject: comment --- example/example.cpp | 231 ++++------------------------------------------------ 1 file changed, 16 insertions(+), 215 deletions(-) (limited to 'example') diff --git a/example/example.cpp b/example/example.cpp index ce57fc9d..3c3782ff 100644 --- a/example/example.cpp +++ b/example/example.cpp @@ -6,227 +6,28 @@ #include -void stdout_logger_example(); -void basic_example(); -void rotating_example(); -void daily_example(); -void async_example(); -void binary_example(); -void trace_example(); -void multi_sink_example(); -void user_defined_example(); -void err_handler_example(); -void syslog_example(); -void clone_example(); - +#define SPDLOG_ACTIVE_LEVEL SPDLOG_LEVEL_TRACE #include "spdlog/spdlog.h" - -int main(int, char *[]) -{ - spdlog::info("Welcome to spdlog version {}.{}.{} !", SPDLOG_VER_MAJOR, SPDLOG_VER_MINOR, SPDLOG_VER_PATCH); - spdlog::warn("Easy padding in numbers like {:08d}", 12); - spdlog::critical("Support for int: {0:d}; hex: {0:x}; oct: {0:o}; bin: {0:b}", 42); - spdlog::info("Support for floats {:03.2f}", 1.23456); - spdlog::info("Positional args are {1} {0}..", "too", "supported"); - spdlog::info("{:>8} aligned, {:<8} aligned", "right", "left"); - - // Runtime log levels - spdlog::set_level(spdlog::level::info); // Set global log level to info - spdlog::debug("This message should not be displayed!"); - spdlog::set_level(spdlog::level::trace); // Set specific logger's log level - spdlog::debug("This message should be displayed.."); - - // Customize msg format for all loggers - spdlog::set_pattern("[%H:%M:%S %z] [%^%L%$] [thread %t] %v"); - spdlog::info("This an info message with custom format"); - spdlog::set_pattern("%+"); // back to default format - - try - { - stdout_logger_example(); - basic_example(); - rotating_example(); - daily_example(); - clone_example(); - async_example(); - binary_example(); - multi_sink_example(); - user_defined_example(); - err_handler_example(); - trace_example(); - - // Flush all *registered* loggers using a worker thread every 3 seconds. - // note: registered loggers *must* be thread safe for this to work correctly! - spdlog::flush_every(std::chrono::seconds(3)); - - // Apply some function on all registered loggers - spdlog::apply_all([&](std::shared_ptr l) { l->info("End of example."); }); - - // Release all spdlog resources, and drop all loggers in the registry. - // This is optional (only mandatory if using windows + async log). - spdlog::shutdown(); - } - - // Exceptions will only be thrown upon failed logger or sink construction (not during logging). - catch (const spdlog::spdlog_ex &ex) - { - std::printf("Log initialization failed: %s\n", ex.what()); - return 1; - } -} - -#include "spdlog/sinks/stdout_color_sinks.h" -// or #include "spdlog/sinks/stdout_sinks.h" if no colors needed. -void stdout_logger_example() -{ - // Create color multi threaded logger. - auto console = spdlog::stdout_color_mt("console"); - // or for stderr: - // auto console = spdlog::stderr_color_mt("error-logger"); -} - -#include "spdlog/sinks/basic_file_sink.h" -void basic_example() -{ - // Create basic file logger (not rotated). - auto my_logger = spdlog::basic_logger_mt("file_logger", "logs/basic-log.txt"); -} - -#include "spdlog/sinks/rotating_file_sink.h" -void rotating_example() -{ - // Create a file rotating logger with 5mb size max and 3 rotated files. - auto rotating_logger = spdlog::rotating_logger_mt("some_logger_name", "logs/rotating.txt", 1048576 * 5, 3); -} - -#include "spdlog/sinks/daily_file_sink.h" -void daily_example() -{ - // Create a daily logger - a new file is created every day on 2:30am. - auto daily_logger = spdlog::daily_logger_mt("daily_logger", "logs/daily.txt", 2, 30); -} - -// Clone a logger and give it new name. -// Useful for creating component/subsystem loggers from some "root" logger. -void clone_example() -{ - auto network_logger = spdlog::default_logger()->clone("network"); - network_logger->info("Logging network stuff.."); -} - #include "spdlog/async.h" -void async_example() -{ - // Default thread pool settings can be modified *before* creating the async logger: - // spdlog::init_thread_pool(32768, 1); // queue with max 32k items 1 backing thread. - auto async_file = spdlog::basic_logger_mt("async_file_logger", "logs/async_log.txt"); - // alternatively: - // auto async_file = spdlog::create_async("async_file_logger", "logs/async_log.txt"); - - for (int i = 1; i < 101; ++i) - { - async_file->info("Async message #{}", i); - } -} - -// Log binary data as hex. -// Many types of std::container types can be used. -// Iterator ranges are supported too. -// Format flags: -// {:X} - print in uppercase. -// {:s} - don't separate each byte with space. -// {:p} - don't print the position on each line start. -// {:n} - don't split the output to lines. - -#include "spdlog/fmt/bin_to_hex.h" -void binary_example() -{ - std::vector buf; - for (int i = 0; i < 80; i++) - { - buf.push_back(static_cast(i & 0xff)); - } - spdlog::info("Binary example: {}", spdlog::to_hex(buf)); - spdlog::info("Another binary example:{:n}", spdlog::to_hex(std::begin(buf), std::begin(buf) + 10)); - // more examples: - // logger->info("uppercase: {:X}", spdlog::to_hex(buf)); - // logger->info("uppercase, no delimiters: {:Xs}", spdlog::to_hex(buf)); - // logger->info("uppercase, no delimiters, no position info: {:Xsp}", spdlog::to_hex(buf)); -} - -// Compile time log levels. -// define SPDLOG_ACTIVE_LEVEL to required level (e.g. SPDLOG_LEVEL_TRACE) -void trace_example() -{ - // trace from default logger - SPDLOG_TRACE("Some trace message.. {} ,{}", 1, 3.23); - // debug from default logger - SPDLOG_DEBUG("Some debug message.. {} ,{}", 1, 3.23); - - // trace from logger object - auto logger = spdlog::get("file_logger"); - SPDLOG_LOGGER_TRACE(logger, "another trace message"); -} +#include "spdlog/sinks/stdout_color_sinks.h" +#include "spdlog/sinks/backtrace-sink.h" -// A logger with multiple sinks (stdout and file) - each with a different format and log level. -void multi_sink_example() -{ - auto console_sink = std::make_shared(); - console_sink->set_level(spdlog::level::warn); - console_sink->set_pattern("[multi_sink_example] [%^%l%$] %v"); +#include - auto file_sink = std::make_shared("logs/multisink.txt", true); - file_sink->set_level(spdlog::level::trace); - spdlog::logger logger("multi_sink", {console_sink, file_sink}); - logger.set_level(spdlog::level::debug); - logger.warn("this should appear in both console and file"); - logger.info("this message should not appear in the console, only in the file"); -} +using namespace spdlog::details; +using namespace spdlog::sinks; -// User defined types logging by implementing operator<< -#include "spdlog/fmt/ostr.h" // must be included -struct my_type -{ - int i; - template - friend OStream &operator<<(OStream &os, const my_type &c) +int main(int, char *[]) { + auto backtrack_sink = std::make_shared(spdlog::level::debug, 10); + backtrack_sink ->add_sink(std::make_shared()); + spdlog::logger l("loggername", backtrack_sink); + l.set_level(spdlog::level::trace); + //spdlog::set_backtrace(spdlog::level::warn, 16) + for(int i = 0; i < 100; i++) { - return os << "[my_type i=" << c.i << "]"; + //l.log(spdlog::source_loc{__FILE__, __LINE__, "main"}, spdlog::level::debug, "Debug message #{}", i); + SPDLOG_LOGGER_TRACE((&l), "Debug message #{}", i); } -}; - -void user_defined_example() -{ - spdlog::info("user defined type: {}", my_type{14}); -} - -// Custom error handler. Will be triggered on log failure. -void err_handler_example() -{ - // can be set globally or per logger(logger->set_error_handler(..)) - spdlog::set_error_handler([](const std::string &msg) { printf("*** Custom log error handler: %s ***\n", msg.c_str()); }); -} - -// syslog example (linux/osx/freebsd) -#ifndef _WIN32 -#include "spdlog/sinks/syslog_sink.h" -void syslog_example() -{ - std::string ident = "spdlog-example"; - auto syslog_logger = spdlog::syslog_logger_mt("syslog", ident, LOG_PID); - syslog_logger->warn("This is warning that will end up in syslog."); + l.warn("This will trigger the log of all prev messages in the queue"); } -#endif - -// Android example. -#if defined(__ANDROID__) -#include "spdlog/sinks/android_sink.h" -void android_example() -{ - std::string tag = "spdlog-android"; - auto android_logger = spdlog::android_logger_mt("android", tag); - android_logger->critical("Use \"adb shell logcat\" to view this message."); -} - -#endif -- cgit v1.2.3