1 /* $NetBSD: log-internal.h,v 1.5 2017/01/31 23:17:39 christos Exp $ */ 2 /* 3 * Copyright (c) 2000-2007 Niels Provos <provos@citi.umich.edu> 4 * Copyright (c) 2007-2012 Niels Provos and Nick Mathewson 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 3. The name of the author may not be used to endorse or promote products 15 * derived from this software without specific prior written permission. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 20 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 22 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27 */ 28 #ifndef LOG_INTERNAL_H_INCLUDED_ 29 #define LOG_INTERNAL_H_INCLUDED_ 30 31 #include "event2/util.h" 32 33 #ifdef __GNUC__ 34 #define EV_CHECK_FMT(a,b) __attribute__((format(printf, a, b))) 35 #define EV_NORETURN __attribute__((noreturn)) 36 #else 37 #define EV_CHECK_FMT(a,b) 38 #define EV_NORETURN 39 #endif 40 41 #define EVENT_ERR_ABORT_ ((int)0xdeaddead) 42 43 #define USE_GLOBAL_FOR_DEBUG_LOGGING 44 45 #if !defined(EVENT__DISABLE_DEBUG_MODE) || defined(USE_DEBUG) 46 #define EVENT_DEBUG_LOGGING_ENABLED 47 #endif 48 49 #ifdef EVENT_DEBUG_LOGGING_ENABLED 50 #ifdef USE_GLOBAL_FOR_DEBUG_LOGGING 51 extern ev_uint32_t event_debug_logging_mask_; 52 #define event_debug_get_logging_mask_() (event_debug_logging_mask_) 53 #else 54 ev_uint32_t event_debug_get_logging_mask_(void); 55 #endif 56 #else 57 #define event_debug_get_logging_mask_() (0) 58 #endif 59 60 void event_err(int eval, const char *fmt, ...) EV_CHECK_FMT(2,3) EV_NORETURN; 61 void event_warn(const char *fmt, ...) EV_CHECK_FMT(1,2); 62 void event_sock_err(int eval, evutil_socket_t sock, const char *fmt, ...) EV_CHECK_FMT(3,4) EV_NORETURN; 63 void event_sock_warn(evutil_socket_t sock, const char *fmt, ...) EV_CHECK_FMT(2,3); 64 void event_errx(int eval, const char *fmt, ...) EV_CHECK_FMT(2,3) EV_NORETURN; 65 void event_warnx(const char *fmt, ...) EV_CHECK_FMT(1,2); 66 void event_msgx(const char *fmt, ...) EV_CHECK_FMT(1,2); 67 void event_debugx_(const char *fmt, ...) EV_CHECK_FMT(1,2); 68 69 void event_logv_(int severity, const char *errstr, const char *fmt, va_list ap) 70 EV_CHECK_FMT(3,0); 71 72 #ifdef EVENT_DEBUG_LOGGING_ENABLED 73 #define event_debug(x) do { \ 74 if (event_debug_get_logging_mask_()) { \ 75 event_debugx_ x; \ 76 } \ 77 } while (0) 78 #else 79 #define event_debug(x) do {;} while (/*CONSTCOND*/0) 80 #endif 81 82 #undef EV_CHECK_FMT 83 84 #endif 85