log.h
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#pragma once
#include <stdio.h>
#include <errno.h>
#include <string.h>
#define __FILENAME__ \
(strrchr(__FILE__, '/') ? \
strrchr(__FILE__, '/') + 1 : __FILE__)
#define clean_errno() \
(errno == 0 ? "None" : strerror(errno))
#define __log_debug_color(X) "[\x1b[1;36m" X "\x1b[0;39m]"
#define __log_error_color(X) "[\x1b[1;31m" X "\x1b[0;39m]"
#define __log_warn_color(X) "[\x1b[1;33m" X "\x1b[0;39m]"
#define __log_info_color(X) "[\x1b[32m" X "\x1b[0;39m]"
#define __log_func_color(X) "\x1b[33m" X "\x1b[39m"
#define __log_args_color(X) "\x1b[94m" X "\x1b[39m"
#define __log_errno_color(X) "\x1b[35m" X "\x1b[39m"
#if !defined(EVHTP_DEBUG)
/* compile with all debug messages removed */
#define log_debug(M, ...)
#else
#define log_debug(M, ...) \
fprintf(stderr, __log_debug_color("DEBUG") " " \
__log_func_color("%s:%-9d") \
__log_args_color(M) \
"\n", \
__FILENAME__, __LINE__, ## __VA_ARGS__)
#endif
#define log_error(M, ...) \
fprintf(stderr, __log_error_color("ERROR") " " \
__log_func_color("%s:%-9d") \
__log_args_color(M) \
" :: " \
__log_errno_color("(errno: %s)") \
"\n", \
__FILENAME__, __LINE__, ## __VA_ARGS__, clean_errno())
#define log_warn(M, ...) \
fprintf(stderr, __log_warn_color("WARN") " " \
__log_func_color("%s:%-9d") \
__log_args_color(M) \
" :: " \
__log_errno_color("(errno: %s)") \
"\n", \
__FILENAME__, __LINE__, ## __VA_ARGS__, clean_errno())
#define log_info(M, ...) \
fprintf(stderr, __log_info_color("INFO") " " \
__log_func_color("%4s:%-9d") \
__log_args_color(M) "\n", \
__FILENAME__, __LINE__, ## __VA_ARGS__)