| /* |
| This file is part of libmicrohttpd |
| Copyright (C) 2007-2018 Daniel Pittman and Christian Grothoff |
| Copyright (C) 2014-2022 Evgeny Grin (Karlson2k) |
| |
| This library is free software; you can redistribute it and/or |
| modify it under the terms of the GNU Lesser General Public |
| License as published by the Free Software Foundation; either |
| version 2.1 of the License, or (at your option) any later version. |
| |
| This library is distributed in the hope that it will be useful, |
| but WITHOUT ANY WARRANTY; without even the implied warranty of |
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| Lesser General Public License for more details. |
| |
| You should have received a copy of the GNU Lesser General Public |
| License along with this library; if not, write to the Free Software |
| Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
| */ |
| |
| /** |
| * @file microhttpd/mhd_panic.h |
| * @brief Declaration and macros for MHD_panic() |
| * @author Daniel Pittman |
| * @author Christian Grothoff |
| * @author Karlson2k (Evgeny Grin) |
| */ |
| |
| #ifndef MHD_PANIC_H |
| #define MHD_PANIC_H 1 |
| |
| #include "mhd_options.h" |
| |
| #ifdef MHD_PANIC |
| /* Override any possible defined MHD_PANIC macro with proper one */ |
| #undef MHD_PANIC |
| #endif /* MHD_PANIC */ |
| |
| /* If we have Clang or gcc >= 4.5, use __builtin_unreachable() */ |
| #if defined(__clang__) || (defined(__GNUC__) && __GNUC__ > 4) || \ |
| (defined(__GNUC__) && __GNUC__ == 4 && __GNUC_MINOR__ >= 5) |
| #define BUILTIN_NOT_REACHED __builtin_unreachable () |
| #elif defined(_MSC_FULL_VER) |
| #define BUILTIN_NOT_REACHED __assume (0) |
| #else |
| #define BUILTIN_NOT_REACHED |
| #endif |
| |
| /* The MHD_PanicCallback type, but without main header. */ |
| /** |
| * Handler for fatal errors. |
| */ |
| extern void |
| (*mhd_panic) (void *cls, |
| const char *file, |
| unsigned int line, |
| const char *reason); |
| |
| /** |
| * Closure argument for "mhd_panic". |
| */ |
| extern void *mhd_panic_cls; |
| |
| #ifdef HAVE_MESSAGES |
| /** |
| * Trigger 'panic' action based on fatal errors. |
| * |
| * @param msg error message (const char *) |
| */ |
| #define MHD_PANIC(msg) do { mhd_panic (mhd_panic_cls, __FILE__, __LINE__, msg); \ |
| BUILTIN_NOT_REACHED; } while (0) |
| #else |
| /** |
| * Trigger 'panic' action based on fatal errors. |
| * |
| * @param msg error message (const char *) |
| */ |
| #define MHD_PANIC(msg) do { mhd_panic (mhd_panic_cls, __FILE__, __LINE__, NULL); \ |
| BUILTIN_NOT_REACHED; } while (0) |
| #endif |
| |
| #endif /* MHD_PANIC_H */ |