visibility.h (2871B)
1 /* -*- Mode: C; tab-width: 4; c-basic-offset: 4; indent-tabs-mode: nil -*- */ 2 /* 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 EVENT2_VISIBILITY_H_INCLUDED_ 28 #define EVENT2_VISIBILITY_H_INCLUDED_ 29 30 #include <event2/event-config.h> 31 32 #if defined(event_shared_EXPORTS) || \ 33 defined(event_extra_shared_EXPORTS) || \ 34 defined(event_core_shared_EXPORTS) || \ 35 defined(event_pthreads_shared_EXPORTS) || \ 36 defined(event_openssl_shared_EXPORTS) 37 38 # if defined (__SUNPRO_C) && (__SUNPRO_C >= 0x550) 39 # define EVENT2_EXPORT_SYMBOL __global 40 # elif defined __GNUC__ 41 # define EVENT2_EXPORT_SYMBOL __attribute__ ((visibility("default"))) 42 # elif defined(_MSC_VER) 43 # define EVENT2_EXPORT_SYMBOL __declspec(dllexport) 44 # else 45 # define EVENT2_EXPORT_SYMBOL /* unknown compiler */ 46 # endif 47 48 #else /* event_*_EXPORTS */ 49 50 # define EVENT2_EXPORT_SYMBOL 51 52 #endif /* event_*_EXPORTS */ 53 54 /** We need to dllimport event_debug_logging_mask_ into event_extra */ 55 #if defined(_MSC_VER) 56 # if defined(event_core_shared_EXPORTS) /** from core export */ 57 # define EVENT2_CORE_EXPORT_SYMBOL __declspec(dllexport) 58 # elif defined(event_extra_shared_EXPORTS) || /** from extra import */ \ 59 defined(EVENT_VISIBILITY_WANT_DLLIMPORT) 60 # define EVENT2_CORE_EXPORT_SYMBOL __declspec(dllimport) 61 # endif 62 #endif /* _MSC_VER */ 63 #if !defined(EVENT2_CORE_EXPORT_SYMBOL) 64 # define EVENT2_CORE_EXPORT_SYMBOL EVENT2_EXPORT_SYMBOL 65 #endif 66 67 #endif /* EVENT2_VISIBILITY_H_INCLUDED_ */