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spdlog
Commit 72f4fae2 authored by gabime's avatar gabime
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updated example

parent b0bf4575
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example/example.cpp
View file @ 72f4fae2
......@@ -7,17 +7,10 @@
//
//
#define SPDLOG_TRACE_ON
#define SPDLOG_DEBUG_ON
#include "spdlog/sinks/daily_file_sink.h"
#include "spdlog/sinks/stdout_color_sinks.h"
#include <iostream>
#include <memory>
void stdout_example();
void basic_example();
void rotating_example();
void daily_example();
......@@ -26,42 +19,14 @@ void user_defined_example();
void err_handler_example();
void syslog_example();
namespace spd = spdlog;
#include "spdlog/spdlog.h"
int main(int, char *[])
{
try
{
auto console = spdlog::stdout_color_mt("console");
console->info("Welcome to spdlog!");
console->error("Some error message with arg: {}", 1);
// Formatting examples
console->warn("Easy padding in numbers like {:08d}", 12);
console->critical("Support for int: {0:d}; hex: {0:x}; oct: {0:o}; bin: {0:b}", 42);
console->info("Support for floats {:03.2f}", 1.23456);
console->info("Positional args are {1} {0}..", "too", "supported");
console->info("{:<30}", "left aligned");
spd::get("console")->info("loggers can be retrieved from a global registry using the spdlog::get(logger_name)");
// Runtime log levels
spd::set_level(spd::level::info); // Set global log level to info
console->debug("This message should not be displayed!");
console->set_level(spd::level::trace); // Set specific logger's log level
console->debug("This message should be displayed..");
// Customize msg format for all loggers
spd::set_pattern("[%H:%M:%S %z] [%^---%L---%$] [thread %t] %v");
console->info("This an info message with custom format");
// Compile time log levels
// define SPDLOG_DEBUG_ON or SPDLOG_TRACE_ON
SPDLOG_TRACE(console, "Enabled only #ifdef SPDLOG_TRACE_ON..{} ,{}", 1, 3.23);
SPDLOG_DEBUG(console, "Enabled only #ifdef SPDLOG_DEBUG_ON.. {} ,{}", 1, 3.23);
// console logging example
stdout_example();
// various file loggers
basic_example();
......@@ -78,15 +43,14 @@ int main(int, char *[])
err_handler_example();
// Apply a function on all registered loggers
spd::apply_all([&](std::shared_ptr<spdlog::logger> l) { l->info("End of example."); });
// apply some function on all registered loggers
spdlog::apply_all([&](std::shared_ptr<spdlog::logger> l) { l->info("End of example."); });
// Release and close all loggers
spdlog::drop_all();
}
// Exceptions will only be thrown upon failed logger or sink construction (not during logging)
catch (const spd::spdlog_ex &ex)
catch (const spdlog::spdlog_ex &ex)
{
std::cout << "Log init failed: " << ex.what() << std::endl;
return 1;
......@@ -94,48 +58,82 @@ int main(int, char *[])
}
#include "spdlog/sinks/stdout_color_sinks.h" // or "/sinks/stdout_sinks.h" if no colors needed
void stdout_example()
{
// create color multi threaded logger
auto console = spdlog::stdout_color_mt("console");
console->info("Welcome to spdlog!");
console->error("Some error message with arg: {}", 1);
auto err_logger = spdlog::stderr_color_mt("error_logger");
err_logger ->error("Some error message");
// Formatting examples
console->warn("Easy padding in numbers like {:08d}", 12);
console->critical("Support for int: {0:d}; hex: {0:x}; oct: {0:o}; bin: {0:b}", 42);
console->info("Support for floats {:03.2f}", 1.23456);
console->info("Positional args are {1} {0}..", "too", "supported");
console->info("{:<30}", "left aligned");
spdlog::get("console")->info("loggers can be retrieved from a global registry using the spdlog::get(logger_name)");
// Runtime log levels
spdlog::set_level(spdlog::level::info); // Set global log level to info
console->debug("This message should not be displayed!");
console->set_level(spdlog::level::trace); // Set specific logger's log level
console->debug("This message should be displayed..");
// Customize msg format for all loggers
spdlog::set_pattern("[%H:%M:%S %z] [%^---%L---%$] [thread %t] %v");
console->info("This an info message with custom format");
// Compile time log levels
// define SPDLOG_DEBUG_ON or SPDLOG_TRACE_ON
SPDLOG_TRACE(console, "Enabled only #ifdef SPDLOG_TRACE_ON..{} ,{}", 1, 3.23);
SPDLOG_DEBUG(console, "Enabled only #ifdef SPDLOG_DEBUG_ON.. {} ,{}", 1, 3.23);
}
#include "spdlog/sinks/basic_file_sink.h"
void basic_example()
{
// Create basic file logger (not rotated)
auto my_logger = spd::basic_logger_mt("basic_logger", "logs/basic-log.txt");
auto my_logger = spdlog::basic_logger_mt("basic_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 = spd::rotating_logger_mt("some_logger_name", "logs/rotating.txt", 1048576 * 5, 3);
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 = spd::daily_logger_mt("daily_logger", "logs/daily.txt", 2, 30);
auto daily_logger = spdlog::daily_logger_mt("daily_logger", "logs/daily.txt", 2, 30);
}
#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.
// spdlog::init_thread_pool(32768, 4); // queue with max 32k items 4 backing threads.
auto async_file = spd::basic_logger_mt<spdlog::async_factory>("async_file_logger", "logs/async_log.txt");
auto async_file = spdlog::basic_logger_mt<spdlog::async_factory>("async_file_logger", "logs/async_log.txt");
// alternatively:
// auto async_file = spd::create_async<spd::sinks::basic_file_sink_mt>("async_file_logger", "logs/async_log.txt");
// auto async_file = spdlog::create_async<spdlog::sinks::basic_file_sink_mt>("async_file_logger", "logs/async_log.txt");
for (int i = 0; i < 100; ++i)
for (int i = 1; i < 101; ++i)
{
async_file->info("Async message #{}", i + 1);
async_file->info("Async message #{}", i);
}
}
......@@ -156,7 +154,7 @@ struct my_type
void user_defined_example()
{
spd::get("console")->info("user defined type: {}", my_type{14});
spdlog::get("console")->info("user defined type: {}", my_type{14});
}
//
......@@ -164,10 +162,9 @@ void user_defined_example()
//
void err_handler_example()
{
// can be set globaly or per logger(logger->set_error_handler(..))
spdlog::set_error_handler([](const std::string &msg) { spd::get("console")->error("*******my err handler: {}", msg); });
spd::get("console")->info("some invalid message to trigger an error {}{}{}{}", 3);
// spd::get("console")->info("some invalid message to trigger an error {}{}{}{}", 3);
// can be set globally or per logger(logger->set_error_handler(..))
spdlog::set_error_handler([](const std::string &msg) { spdlog::get("console")->error("*** LOGGER ERROR ***: {}", msg); });
spdlog::get("console")->info("some invalid message to trigger an error {}{}{}{}", 3);
}
......@@ -177,7 +174,7 @@ void err_handler_example()
void syslog_example()
{
std::string ident = "spdlog-example";
auto syslog_logger = spd::syslog_logger("syslog", ident, LOG_PID);
auto syslog_logger = spdlog::syslog_logger("syslog", ident, LOG_PID);
syslog_logger->warn("This is warning that will end up in syslog.");
}
#endif
......@@ -188,7 +185,7 @@ void syslog_example()
void android_example()
{
std::string tag = "spdlog-android";
auto android_logger = spd::android_logger("android", tag);
auto android_logger = spdlog::android_logger("android", tag);
android_logger->critical("Use \"adb shell logcat\" to view this message.");
}
......
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