log.h

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/*
 * Copyright (c) 2022 Geoff Simmons <geoff@simmons.de>
 *
 * SPDX-License-Identifier: BSD-2-Clause
 * See LICENSE
 */
 
#ifndef _PICOW_HTTP_LOG_H
#define _PICOW_HTTP_LOG_H
 
#include <stdio.h>
#include <stdarg.h>
 
#define HTTP_LOG_LVL_NONE   (-1)
#define HTTP_LOG_LVL_ERROR  (0)
#define HTTP_LOG_LVL_WARN   (1)
#define HTTP_LOG_LVL_INFO   (2)
#define HTTP_LOG_LVL_DEBUG  (3)
#define HTTP_LOG_LVL_VERBOSE    (4)
 
#ifndef HTTP_LOG_LVL
# ifdef NDEBUG
# define HTTP_LOG_LVL (HTTP_LOG_LVL_INFO)
# else
# define HTTP_LOG_LVL (HTTP_LOG_LVL_DEBUG)
# endif
#endif
 
#ifndef HTTP_REQUEST_LOG
# if HTTP_LOG_LVL == HTTP_LOG_LVL_NONE
# define HTTP_REQUEST_LOG (0)
# else
# define HTTP_REQUEST_LOG (1)
# endif
#endif
 
#define HTTP_LOG(LVL, ...) do {         \
        if ((LVL) <= (HTTP_LOG_LVL))    \
            http_log(__VA_ARGS__);  \
    } while (0)
 
#define HTTP_LOG_ERROR(...)   HTTP_LOG(HTTP_LOG_LVL_ERROR,   __VA_ARGS__)
 
#define HTTP_LOG_WARN(...)    HTTP_LOG(HTTP_LOG_LVL_WARN,    __VA_ARGS__)
 
#define HTTP_LOG_INFO(...)    HTTP_LOG(HTTP_LOG_LVL_INFO,    __VA_ARGS__)
 
#define HTTP_LOG_DEBUG(...)   HTTP_LOG(HTTP_LOG_LVL_DEBUG,   __VA_ARGS__)
 
#define HTTP_LOG_VERBOSE(...) HTTP_LOG(HTTP_LOG_LVL_VERBOSE, __VA_ARGS__)
 
static inline void
http_log(const char *fmt, ...)
{
    va_list ap;
 
    va_start(ap, fmt);
    vprintf(fmt, ap);
    va_end(ap);
    puts("");
}
 
#endif /* _PICOW_HTTP_LOG_H */