/* SPDX-License-Identifier: BSD-3-Clause */
/*
 * Copyright © 2010, Zed A. Shaw.
 */

#ifndef __dbg_h__
#define __dbg_h__

#include <stdio.h>
#include <errno.h>
#include <string.h>

#ifdef NDEBUG
#define debug(M, ...)
#else
#define debug(M, ...) fprintf(stderr, "DEBUG %s:%s:%d: " M "\n", \
                              __FILE__, __FUNCTION__, __LINE__, \
                              ##__VA_ARGS__)
#endif

#define clean_errno() (errno == 0 ? "None" : strerror(errno))

#define log_err(M, ...) fprintf(stderr, \
        "[ERROR] (%s:%s:%d: errno: %s) " M "\n", __FILE__, \
                                __FUNCTION__, __LINE__, \
                                clean_errno(), ##__VA_ARGS__)

#define log_warn(M, ...) fprintf(stderr, \
        "[WARN] (%s:%s:%d: errno: %s) " M "\n", \
                                 __FILE__, __FUNCTION__, __LINE__, \
                                 clean_errno(), ##__VA_ARGS__)

#define log_info(M, ...) fprintf(stderr, "[INFO] (%s:%s:%d) " M "\n", \
                                 __FILE__, __FUNCTION__, __LINE__, \
                                 ##__VA_ARGS__)

#define check(A, M, ...) if(!(A)) {\
        log_err(M, ##__VA_ARGS__); errno=0; goto error; }

#define sentinel(M, ...) { log_err(M, ##__VA_ARGS__);\
        errno=0; goto error; }

#define check_mem(A) check((A), "Out of memory.")

#define check_debug(A, M, ...) if(!(A)) { debug(M, ##__VA_ARGS__);\
        errno=0; goto error; }

#endif