log.c is a minimalist logging library written in C99. It offers a set of macros for different log levels (trace, debug, info, warn, error, fatal) which output formatted messages to standard error. The library supports setting logging levels, specifying file output, and adding callback functions for custom log handling. It aims to provide a straightforward way to add logging functionality to C projects without significant overhead.
The library's simplicity and minimal dependencies make it easily integrable into existing projects. It offers flexible configuration options for logging levels and output destinations. It supports callbacks, allowing for custom log processing. The library accurately reports file names and line numbers within log messages.
- Log Levels: Supports trace, debug, info, warn, error, and fatal levels for varying severity.
- File Output: Allows redirecting log messages to one or more files.
- Callbacks: Provides a mechanism for custom log event handling functions.
- Locking: Includes a lock function for thread-safe logging.
- Log Level String: Returns a string representation of the current log level.
- Color Output: Supports ANSI color escape codes when compiled with the LOG_USE_COLOR flag.
The project is a mature, standalone library currently under active maintenance. It has a reasonable number of stars and forks indicating community interest. Recent commits suggest ongoing development and bug fixes. The documentation, while basic, is sufficient to understand the library's functionality.
This library is beneficial for developers who need a simple and lightweight logging solution for their C99 applications. It enables easier debugging and monitoring of application behavior. It simplifies log output configuration and provides flexible output options compared to manual printf statements, improving code clarity and maintainability.