1/*
2 * nghttp3
3 *
4 * Copyright (c) 2019 nghttp3 contributors
5 * Copyright (c) 2016 nghttp2 contributors
6 *
7 * Permission is hereby granted, free of charge, to any person obtaining
8 * a copy of this software and associated documentation files (the
9 * "Software"), to deal in the Software without restriction, including
10 * without limitation the rights to use, copy, modify, merge, publish,
11 * distribute, sublicense, and/or sell copies of the Software, and to
12 * permit persons to whom the Software is furnished to do so, subject to
13 * the following conditions:
14 *
15 * The above copyright notice and this permission notice shall be
16 * included in all copies or substantial portions of the Software.
17 *
18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
19 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
20 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
21 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
22 * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
23 * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
24 * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
25 */
26#include "nghttp3_debug.h"
27
28#include <stdio.h>
29
30#ifdef DEBUGBUILD
31
32static void nghttp3_default_debug_vfprintf_callback(const char *fmt,
33                                                    va_list args) {
34  vfprintf(stderr, fmt, args);
35}
36
37static nghttp3_debug_vprintf_callback static_debug_vprintf_callback =
38    nghttp3_default_debug_vfprintf_callback;
39
40void nghttp3_debug_vprintf(const char *format, ...) {
41  if (static_debug_vprintf_callback) {
42    va_list args;
43    va_start(args, format);
44    static_debug_vprintf_callback(format, args);
45    va_end(args);
46  }
47}
48
49void nghttp3_set_debug_vprintf_callback(
50    nghttp3_debug_vprintf_callback debug_vprintf_callback) {
51  static_debug_vprintf_callback = debug_vprintf_callback;
52}
53
54#else /* !DEBUGBUILD */
55
56void nghttp3_set_debug_vprintf_callback(
57    nghttp3_debug_vprintf_callback debug_vprintf_callback) {
58  (void)debug_vprintf_callback;
59}
60
61#endif /* !DEBUGBUILD */
62