visibility.h 2.8 KB

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  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. #include <event2/event-config.h>
  30. #if defined(event_shared_EXPORTS) || \
  31. defined(event_extra_shared_EXPORTS) || \
  32. defined(event_core_shared_EXPORTS) || \
  33. defined(event_pthreads_shared_EXPORTS) || \
  34. defined(event_openssl_shared_EXPORTS)
  35. # if defined (__SUNPRO_C) && (__SUNPRO_C >= 0x550)
  36. # define EVENT2_EXPORT_SYMBOL __global
  37. # elif defined __GNUC__
  38. # define EVENT2_EXPORT_SYMBOL __attribute__ ((visibility("default")))
  39. # elif defined(_MSC_VER)
  40. # define EVENT2_EXPORT_SYMBOL __declspec(dllexport)
  41. # else
  42. # define EVENT2_EXPORT_SYMBOL /* unknown compiler */
  43. # endif
  44. #else /* event_*_EXPORTS */
  45. # define EVENT2_EXPORT_SYMBOL
  46. #endif /* event_*_EXPORTS */
  47. /** We need to dllimport event_debug_logging_mask_ into event_extra */
  48. #if defined(_MSC_VER)
  49. # if defined(event_core_shared_EXPORTS) /** from core export */
  50. # define EVENT2_CORE_EXPORT_SYMBOL __declspec(dllexport)
  51. # elif defined(event_extra_shared_EXPORTS) || /** from extra import */ \
  52. defined(EVENT_VISIBILITY_WANT_DLLIMPORT)
  53. # define EVENT2_CORE_EXPORT_SYMBOL __declspec(dllimport)
  54. # endif
  55. #endif /* _MSC_VER */
  56. #if !defined(EVENT2_CORE_EXPORT_SYMBOL)
  57. # define EVENT2_CORE_EXPORT_SYMBOL EVENT2_EXPORT_SYMBOL
  58. #endif
  59. #endif /* EVENT2_VISIBILITY_H_INCLUDED_ */