nghttp2/lib/nghttp2_debug.c

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/*
* nghttp2 - HTTP/2 C Library
*
* Copyright (c) 2016 Tatsuhiro Tsujikawa
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
* LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
* OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
#include "nghttp2_debug.h"
#include <stdio.h>
#ifdef DEBUGBUILD
static void nghttp2_default_debug_vfprintf_callback(const char *fmt,
va_list args) {
vfprintf(stderr, fmt, args);
}
static nghttp2_debug_vprintf_callback static_debug_vprintf_callback =
nghttp2_default_debug_vfprintf_callback;
void nghttp2_debug_vprintf(const char *format, ...) {
if (static_debug_vprintf_callback) {
va_list args;
va_start(args, format);
static_debug_vprintf_callback(format, args);
va_end(args);
}
}
void nghttp2_set_debug_vprintf_callback(
nghttp2_debug_vprintf_callback debug_vprintf_callback) {
static_debug_vprintf_callback = debug_vprintf_callback;
}
#else /* !DEBUGBUILD */
void nghttp2_set_debug_vprintf_callback(
nghttp2_debug_vprintf_callback debug_vprintf_callback) {
(void)debug_vprintf_callback;
}
#endif /* !DEBUGBUILD */