1 /* $NetBSD: log-internal.h,v 1.5 2020/05/25 20:47:33 christos Exp $ */ 2 3 /* 4 * Copyright (c) 2000-2007 Niels Provos <provos@citi.umich.edu> 5 * Copyright (c) 2007-2012 Niels Provos and Nick Mathewson 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. The name of the author may not be used to endorse or promote products 16 * derived from this software without specific prior written permission. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 19 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 20 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 21 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 22 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 23 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 24 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 25 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 26 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 27 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 28 */ 29 #ifndef LOG_INTERNAL_H_INCLUDED_ 30 #define LOG_INTERNAL_H_INCLUDED_ 31 32 #include "event2/util.h" 33 34 #ifdef __GNUC__ 35 #define EV_CHECK_FMT(a,b) __attribute__((format(printf, a, b))) 36 #define EV_NORETURN __attribute__((noreturn)) 37 #else 38 #define EV_CHECK_FMT(a,b) 39 #define EV_NORETURN 40 #endif 41 42 #define EVENT_ERR_ABORT_ ((int)0xdeaddead) 43 44 #define USE_GLOBAL_FOR_DEBUG_LOGGING 45 46 #if !defined(EVENT__DISABLE_DEBUG_MODE) || defined(USE_DEBUG) 47 #define EVENT_DEBUG_LOGGING_ENABLED 48 #endif 49 50 #ifdef EVENT_DEBUG_LOGGING_ENABLED 51 #ifdef USE_GLOBAL_FOR_DEBUG_LOGGING 52 extern ev_uint32_t event_debug_logging_mask_; 53 #define event_debug_get_logging_mask_() (event_debug_logging_mask_) 54 #else 55 ev_uint32_t event_debug_get_logging_mask_(void); 56 #endif 57 #else 58 #define event_debug_get_logging_mask_() (0) 59 #endif 60 61 void event_err(int eval, const char *fmt, ...) EV_CHECK_FMT(2,3) EV_NORETURN; 62 void event_warn(const char *fmt, ...) EV_CHECK_FMT(1,2); 63 void event_sock_err(int eval, evutil_socket_t sock, const char *fmt, ...) EV_CHECK_FMT(3,4) EV_NORETURN; 64 void event_sock_warn(evutil_socket_t sock, const char *fmt, ...) EV_CHECK_FMT(2,3); 65 void event_errx(int eval, const char *fmt, ...) EV_CHECK_FMT(2,3) EV_NORETURN; 66 void event_warnx(const char *fmt, ...) EV_CHECK_FMT(1,2); 67 void event_msgx(const char *fmt, ...) EV_CHECK_FMT(1,2); 68 void event_debugx_(const char *fmt, ...) EV_CHECK_FMT(1,2); 69 70 void event_logv_(int severity, const char *errstr, const char *fmt, va_list ap) 71 EV_CHECK_FMT(3,0); 72 73 #ifdef EVENT_DEBUG_LOGGING_ENABLED 74 #define event_debug(x) do { \ 75 if (event_debug_get_logging_mask_()) { \ 76 event_debugx_ x; \ 77 } \ 78 } while (0) 79 #else 80 #define event_debug(x) ((void)0) 81 #endif 82 83 #undef EV_CHECK_FMT 84 85 #endif 86