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Updated example to show daily logger usage

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gabime 2015-02-15 23:35:55 +02:00
parent c401e830d0
commit 9cfdfc75b7
2 changed files with 41 additions and 18 deletions
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6
README.md
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@ -98,6 +98,12 @@ int main(int, char* [])
for(int i = 0; i < 10; ++i)
file_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", 2, 30);
//
// Customize msg format for all messages
//

53
example/example.cpp
View File

@ -28,20 +28,18 @@
#include <iostream>
#include "spdlog/spdlog.h"
int main(int, char* [])
int main(int, char*[])
{
namespace spd = spdlog;
try
{
// Set log level to all loggers to debug and above
spd::set_level(spd::level::debug);
// Create console, multithreaded logger
//Create console, multithreaded logger
auto console = spd::stdout_logger_mt("console");
console->info("Hello {}", 1);
console->info("Welcome to spdlog!");
console->info("An info message example {}..", 1);
console->info() << "Streams are supported too " << 1;
//Formatting examples
console->info("Easy padding in numbers like {:08d}", 12);
console->info("Support for int: {0:d}; hex: {0:x}; oct: {0:o}; bin: {0:b}", 42);
console->info("Support for floats {:03.2f}", 1.23456);
@ -51,37 +49,59 @@ int main(int, char* [])
console->info("{:>30}", "right aligned");
console->info("{:^30}", "centered");
//
// Runtime log levels
//
spd::set_level(spd::level::info); //Set global log level to info
console->debug("This message shold not be displayed!");
console->set_level(spd::level::debug); // Set specific logger's log level
console->debug("Now it should..");
//
// Create a file rotating logger with 5mb size max and 3 rotated files
//
auto file_logger = spd::rotating_logger_mt("file_logger", "logs/mylogfile", 1048576 * 5, 3);
file_logger->set_level(spd::level::info);
for(int i = 0; i < 10; ++i)
for (int i = 0; i < 10; ++i)
file_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", 2, 30);
//
// Customize msg format for all messages
//
spd::set_pattern("*** [%H:%M:%S %z] [thread %t] %v ***");
file_logger->info("This is another message with custom format");
spd::get("console")->info("loggers can be retrieved from a global registry using the spdlog::get(logger_name) function");
//
// Compile time debug or trace macros.
// Enabled #ifdef SPDLOG_DEBUG_ON or #ifdef 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 is very fast..
// Just call spdlog::set_async_mode(q_size) and all created loggers from now on will be asynchronous..
//
size_t q_size = 1048576; //queue size must be power of 2
spdlog::set_async_mode(q_size);
auto async_file= spd::daily_logger_st("async_file_logger", "logs/async_log.txt");
auto async_file = spd::daily_logger_st("async_file_logger", "logs/async_log.txt");
async_file->info() << "This is async log.." << "Should be very fast!";
//
// syslog example. linux only..
//
#ifdef __linux__
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. This is Linux only!");
#endif
//Close all loggers
spd::drop_all();
}
catch (const spd::spdlog_ex& ex)
{
@ -90,19 +110,16 @@ int main(int, char* [])
}
//
// Example of user defined class with operator<<
//
class some_class {};
std::ostream& operator<<(std::ostream& os, const some_class&)
{
std::ostream& operator<<(std::ostream& os, const some_class& c) {
return os << "some_class";
}
void custom_class_example()
{
some_class c;
spdlog::get("console")->info("custom class with operator<<: {}", c);
spdlog::get("console")->info() << "custom class with operator<<: " << c;
spdlog::get("console")->info("custom class with operator<<: {}..", c);
spdlog::get("console")->info() << "custom class with operator<<: " << c << "..";
}