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