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spdlog
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updated example

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pull/752/head
gabime 7 years ago
parent 98ab8e0d73
commit b0bf457538
1 changed files with 80 additions and 60 deletions
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140
example/example.cpp
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@ -11,13 +11,16 @@
#define SPDLOG_DEBUG_ON
#include "spdlog/sinks/daily_file_sink.h"
#include "spdlog/sinks/rotating_file_sink.h"
#include "spdlog/sinks/basic_file_sink.h"
#include "spdlog/sinks/stdout_color_sinks.h"
#include <iostream>
#include <memory>
void basic_example();
void rotating_example();
void daily_example();
void async_example();
void user_defined_example();
void err_handler_example();
@ -29,13 +32,10 @@ int main(int, char *[])
try
{
spd::set_pattern("TEST PATTERN %v");
auto console = spdlog::stdout_color_st("console");
console->info("Welcome to spdlog!");
auto console = spdlog::stdout_color_mt("console");
console->info("Welcome to spdlog!");
console->error("Some error message with arg: {}", 1);
err_handler_example();
// 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);
@ -43,33 +43,7 @@ int main(int, char *[])
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) function");
// Create basic file logger (not rotated)
auto my_logger = spd::basic_logger_mt("basic_logger", "logs/basic-log.txt");
my_logger->info("Some log message");
// 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);
for (int i = 0; i < 10; ++i)
{
rotating_logger->info("{} * {} equals {:>10}", i, i, i * i);
}
// 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);
// trigger flush if the log severity is error or higher
daily_logger->flush_on(spd::level::err);
daily_logger->info(123.44);
// Customize msg format for all messages
spd::set_pattern("[%^+++%$] [%H:%M:%S %z] [thread %t] %v");
console->info("This an info message with custom format");
console->error("This an error message with custom format");
// Change format back to to default
spd::set_pattern("%+");
spd::get("console")->info("loggers can be retrieved from a global registry using the spdlog::get(logger_name)");
// Runtime log levels
spd::set_level(spd::level::info); // Set global log level to info
@ -77,20 +51,34 @@ int main(int, char *[])
console->set_level(spd::level::trace); // Set specific logger's log level
console->debug("This message should be displayed..");
// Customize msg format for all loggers
spd::set_pattern("[%H:%M:%S %z] [%^---%L---%$] [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);
// Asynchronous logging example
// various file loggers
basic_example();
rotating_example();
daily_example();
// async logging using a backing thread pool
async_example();
// Log user-defined types example
// user defined types logging by implementing operator<<
user_defined_example();
// Change default log error handler
// custom error handler
err_handler_example();
// Apply a function on all registered loggers
spd::apply_all([&](std::shared_ptr<spdlog::logger> l) { l->info("End of example."); });
@ -104,7 +92,35 @@ int main(int, char *[])
return 1;
}
}
// must be included to use async logger
#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");
}
#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);
}
#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);
}
#include "spdlog/async.h"
void async_example()
{
@ -123,30 +139,10 @@ void async_example()
}
}
// syslog example (linux/osx/freebsd)
#ifndef _WIN32
#include "spdlog/sinks/syslog_sink.h"
void syslog_example()
{
std::string ident = "spdlog-example";
auto syslog_logger = spd::syslog_logger("syslog", ident, LOG_PID);
syslog_logger->warn("This is warning that will end up in syslog.");
}
#endif
// Android example
#if defined(__ANDROID__)
#incude "spdlog/sinks/android_sink.h"
void android_example()
{
std::string tag = "spdlog-android";
auto android_logger = spd::android_logger("android", tag);
android_logger->critical("Use \"adb shell logcat\" to view this message.");
}
#endif
// user defined types logging by implementing operator<<
#include "spdlog/fmt/ostr.h" // must be included
struct my_type
{
int i;
@ -157,7 +153,7 @@ struct my_type
}
};
#include "spdlog/fmt/ostr.h" // must be included
void user_defined_example()
{
spd::get("console")->info("user defined type: {}", my_type{14});
@ -173,3 +169,27 @@ void err_handler_example()
spd::get("console")->info("some invalid message to trigger an error {}{}{}{}", 3);
// spd::get("console")->info("some invalid message to trigger an error {}{}{}{}", 3);
}
// syslog example (linux/osx/freebsd)
#ifndef _WIN32
#include "spdlog/sinks/syslog_sink.h"
void syslog_example()
{
std::string ident = "spdlog-example";
auto syslog_logger = spd::syslog_logger("syslog", ident, LOG_PID);
syslog_logger->warn("This is warning that will end up in syslog.");
}
#endif
// Android example
#if defined(__ANDROID__)
#incude "spdlog/sinks/android_sink.h"
void android_example()
{
std::string tag = "spdlog-android";
auto android_logger = spd::android_logger("android", tag);
android_logger->critical("Use \"adb shell logcat\" to view this message.");
}
#endif

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