1 /* $NetBSD: visibility.h,v 1.1.1.2 2021/04/07 02:43:14 christos Exp $ */ 2 /* -*- Mode: C; tab-width: 4; c-basic-offset: 4; indent-tabs-mode: nil -*- */ 3 /* 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 EVENT2_VISIBILITY_H_INCLUDED_ 29 #define EVENT2_VISIBILITY_H_INCLUDED_ 30 31 #include <event2/event-config.h> 32 33 #if defined(event_shared_EXPORTS) || \ 34 defined(event_extra_shared_EXPORTS) || \ 35 defined(event_core_shared_EXPORTS) || \ 36 defined(event_pthreads_shared_EXPORTS) || \ 37 defined(event_openssl_shared_EXPORTS) 38 39 # if defined (__SUNPRO_C) && (__SUNPRO_C >= 0x550) 40 # define EVENT2_EXPORT_SYMBOL __global 41 # elif defined __GNUC__ 42 # define EVENT2_EXPORT_SYMBOL __attribute__ ((visibility("default"))) 43 # elif defined(_MSC_VER) 44 # define EVENT2_EXPORT_SYMBOL __declspec(dllexport) 45 # else 46 # define EVENT2_EXPORT_SYMBOL /* unknown compiler */ 47 # endif 48 49 #else /* event_*_EXPORTS */ 50 51 # define EVENT2_EXPORT_SYMBOL 52 53 #endif /* event_*_EXPORTS */ 54 55 /** We need to dllimport event_debug_logging_mask_ into event_extra */ 56 #if defined(_MSC_VER) 57 # if defined(event_core_shared_EXPORTS) /** from core export */ 58 # define EVENT2_CORE_EXPORT_SYMBOL __declspec(dllexport) 59 # elif defined(event_extra_shared_EXPORTS) || /** from extra import */ \ 60 defined(EVENT_VISIBILITY_WANT_DLLIMPORT) 61 # define EVENT2_CORE_EXPORT_SYMBOL __declspec(dllimport) 62 # endif 63 #endif /* _MSC_VER */ 64 #if !defined(EVENT2_CORE_EXPORT_SYMBOL) 65 # define EVENT2_CORE_EXPORT_SYMBOL EVENT2_EXPORT_SYMBOL 66 #endif 67 68 #endif /* EVENT2_VISIBILITY_H_INCLUDED_ */ 69