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#ifndef ANY_LOG_INCLUDE
#define ANY_LOG_INCLUDE
typedef enum {
LOG_PANIC,
LOG_ERROR,
LOG_WARN,
LOG_INFO,
LOG_DEBUG,
LOG_TRACE,
LOG_ALL,
} log_level_t;
// The value of ANY_LOG_MODULE is used to indicate the current module.
// By default it is defined as __FILE__, so that it will coincide with the
// source file path (relative to the compiler cwd).
//
// You can customize ANY_LOG_MODULE before including the header by simply
// defining it. For example
//
// #define ANY_LOG_MODULE "my-library"
// #include "any_log.h"
//
#ifndef ANY_LOG_MODULE
#define ANY_LOG_MODULE __FILE__
#endif
// C99 and later define the __func__ variable
#ifndef ANY_LOG_FUNC
#define ANY_LOG_FUNC __func__
#endif
#define log_panic(...) \
do { \
log_generic(LOG_PANIC, ANY_LOG_MODULE, ANY_LOG_FUNC, __VA_ARGS__); \
log_exit(ANY_LOG_MODULE, ANY_LOG_FUNC); \
} while (0)
#define log_error(...) \
log_generic(LOG_ERROR, ANY_LOG_MODULE, ANY_LOG_FUNC, __VA_ARGS__)
#define log_warn(...) \
log_generic(LOG_WARN, ANY_LOG_MODULE, ANY_LOG_FUNC, __VA_ARGS__)
#define log_info(...) \
log_generic(LOG_INFO, ANY_LOG_MODULE, ANY_LOG_FUNC, __VA_ARGS__)
#define log_debug(...) \
log_generic(LOG_DEBUG, ANY_LOG_MODULE, ANY_LOG_FUNC, __VA_ARGS__)
#ifdef ANY_LOG_NO_TRACE
#define log_trace(...)
#else
#define log_trace(...) \
log_generic(LOG_TRACE, ANY_LOG_MODULE, ANY_LOG_FUNC, __VA_ARGS__)
#endif
void log_exit(const char *module, const char *func);
void log_generic(log_level_t level, const char *module,
const char *func, const char *format, ...);
#endif
#ifdef ANY_LOG_IMPLEMENT
#include <stdarg.h>
#include <stdio.h>
#include <stdlib.h>
// Using log_panic results in a call to log_exit, which should terminate
// the program. The value of ANY_LOG_PANIC is used to specify what action
// to take in log_exit.
// By default it is abort
//
// NOTE: That log_exit should never return!
//
#ifndef ANY_LOG_PANIC
#define ANY_LOG_PANIC(module, func) abort()
#endif
// NOTE: This function should be called solely by the macro log_panic
void log_exit(const char *module, const char *func)
{
ANY_LOG_PANIC(module, func);
}
#ifndef ANY_LOG_FORMAT_BEFORE
#define ANY_LOG_FORMAT_BEFORE(level, module, func, levels) \
"[%s %s] %s: ", module, func, levels[level]
#endif
#ifndef ANY_LOG_FORMAT_AFTER
#define ANY_LOG_FORMAT_AFTER(level, module, func, levels) "\n"
#endif
void log_generic(log_level_t level, const char *module,
const char *func, const char *format, ...)
{
const char *log_levels[] = {
"panic", "error", "warn",
"info", "debug", "trace",
};
fprintf(stdout, ANY_LOG_FORMAT_BEFORE(level, module, func, log_levels));
va_list args;
va_start(args, format);
vfprintf(stdout, format, args);
va_end(args);
fprintf(stdout, ANY_LOG_FORMAT_AFTER(level, module, func, log_levels));
}
#endif
// vim: ts=4 sw=4 et
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