Logging in libdoip

This library uses spdlog for high-performance logging.

Features

• High Performance: spdlog is one of the fastest C++ logging libraries
• Thread Safe: All logging operations are thread-safe
• Multiple Log Levels: TRACE, DEBUG, INFO, WARN, ERROR, CRITICAL
• Formatted Output: Support for fmt-style formatting
• Configurable Patterns: Customize log message format
• Color Support: Colored console output for better readability

Usage

Basic Logging

#include "Logger.h"
 
// Different log levels
LOG_DOIP_TRACE("Detailed trace information");
LOG_DOIP_DEBUG("Debug information");
LOG_DOIP_INFO("General information");
LOG_DOIP_WARN("Warning message");
LOG_DOIP_ERROR("Error occurred");
LOG_DOIP_CRITICAL("Critical error");

Formatted Logging

#include "Logger.h"
 
int port = 13400;
std::string interface = "eth0";
LOG_DOIP_INFO("DoIP server starting on interface '{}' port {}", interface, port);
 
// Works with any type that supports fmt formatting
auto timestamp = std::chrono::system_clock::now();
LOG_DOIP_DEBUG("Connection established at {}", timestamp);

Configuration

#include "Logger.h"
 
// Set log level (only messages at this level or higher will be shown)
doip::Logger::setLevel(spdlog::level::debug);
 
// Set custom pattern
doip::Logger::setPattern("[%H:%M:%S] [%^%l%$] %v");
 
// Available levels: trace, debug, info, warn, err, critical, off

Pattern Format

The default pattern is: [Y-m-d H:M:S.e] [n] [%^l%$] v

Common pattern flags:

• Y - Year (4 digits)
• m - Month (01-12)
• d - Day (01-31)
• H - Hour (00-23)
• M - Minute (00-59)
• S - Second (00-59)
• e - Milliseconds (000-999)
• n - Logger name
• l - Log level
• %^ - Start color range
• %$ - End color range
• v - The actual message