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