dr_log

This packages implements a wrapper for boost::logging. Its interface resembles that of ROS (ie. it uses DR_INFO("Hello World"); versus ROS_INFO("Hello World");).

Sinks

Sinks in boost::logging terms are ways to output the data. By default, dr_log uses 2 sinks:

• syslog
• console (makes use of std::clog, which is comparable to std::cerr)

The syslog sink can be disabled by setting the DR_LOG_USE_SYSLOG environment variable to 0. The console sink can be disabled by setting the DR_LOG_USE_CONSOLE environment variable to 0.

Systemd

dr_log has a Systemd logging mode. This allows for console logging without colors and timestamps, and with log-level prefixed in a way that systemd parses when SyslogLevelPrefix= is enabled.

This mode can be enabled by setting the DR_LOG_CONSOLE_FORMAT environment variable to systemd. This only works with the 'console' sink enabled.

Example

#include <thread>
#include <dr_log/dr_log.hpp>

int main() {
	dr::setupLogging("./test/test.log", "test");
	DR_DEBUG("Debug" << " message");
	DR_INFO("Info" << " message");
	DR_SUCCESS("Succes" << " message");
	DR_WARN("Warning" << " message");
	DR_ERROR("Error" << " message");
	DR_FATAL("Critical" << " message");

	for (int i = 0; i < 10; ++i) {
		std::this_thread::sleep_for(std::chrono::milliseconds(100));
		DR_INFO_THROTTLE(2, "Throttled" << " at 2 Hz: " << i);
	}
}