1/*
2 * nghttp2 - HTTP/2 C Library
3 *
4 * Copyright (c) 2016 Tatsuhiro Tsujikawa
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining
7 * a copy of this software and associated documentation files (the
8 * "Software"), to deal in the Software without restriction, including
9 * without limitation the rights to use, copy, modify, merge, publish,
10 * distribute, sublicense, and/or sell copies of the Software, and to
11 * permit persons to whom the Software is furnished to do so, subject to
12 * the following conditions:
13 *
14 * The above copyright notice and this permission notice shall be
15 * included in all copies or substantial portions of the Software.
16 *
17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
18 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
19 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
20 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
21 * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
22 * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
23 * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
24 */
25#include "nghttp2_debug.h"
26
27#include <stdio.h>
28
29#ifdef DEBUGBUILD
30
31static void nghttp2_default_debug_vfprintf_callback(const char *fmt,
32                                                    va_list args) {
33  vfprintf(stderr, fmt, args);
34}
35
36static nghttp2_debug_vprintf_callback static_debug_vprintf_callback =
37    nghttp2_default_debug_vfprintf_callback;
38
39void nghttp2_debug_vprintf(const char *format, ...) {
40  if (static_debug_vprintf_callback) {
41    va_list args;
42    va_start(args, format);
43    static_debug_vprintf_callback(format, args);
44    va_end(args);
45  }
46}
47
48void nghttp2_set_debug_vprintf_callback(
49    nghttp2_debug_vprintf_callback debug_vprintf_callback) {
50  static_debug_vprintf_callback = debug_vprintf_callback;
51}
52
53#else /* !DEBUGBUILD */
54
55void nghttp2_set_debug_vprintf_callback(
56    nghttp2_debug_vprintf_callback debug_vprintf_callback) {
57  (void)debug_vprintf_callback;
58}
59
60#endif /* !DEBUGBUILD */
61