_sd-common.h 2.6 KB

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  1. #ifndef foosdcommonhfoo
  2. #define foosdcommonhfoo
  3. /***
  4. This file is part of systemd.
  5. Copyright 2013 Lennart Poettering
  6. systemd is free software; you can redistribute it and/or modify it
  7. under the terms of the GNU Lesser General Public License as published by
  8. the Free Software Foundation; either version 2.1 of the License, or
  9. (at your option) any later version.
  10. systemd is distributed in the hope that it will be useful, but
  11. WITHOUT ANY WARRANTY; without even the implied warranty of
  12. MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  13. Lesser General Public License for more details.
  14. You should have received a copy of the GNU Lesser General Public License
  15. along with systemd; If not, see <http://www.gnu.org/licenses/>.
  16. ***/
  17. /* This is a private header; never even think of including this directly! */
  18. #if __INCLUDE_LEVEL__ <= 1
  19. #error "Do not include _sd-common.h directly; it is a private header."
  20. #endif
  21. #ifndef _sd_printf_
  22. # if __GNUC__ >= 4
  23. # define _sd_printf_(a,b) __attribute__ ((format (printf, a, b)))
  24. # else
  25. # define _sd_printf_(a,b)
  26. # endif
  27. #endif
  28. #ifndef _sd_sentinel_
  29. # define _sd_sentinel_ __attribute__((sentinel))
  30. #endif
  31. #ifndef _sd_packed_
  32. # define _sd_packed_ __attribute__((packed))
  33. #endif
  34. #ifndef _sd_pure_
  35. # define _sd_pure_ __attribute__((pure))
  36. #endif
  37. #ifndef _SD_STRINGIFY
  38. # define _SD_XSTRINGIFY(x) #x
  39. # define _SD_STRINGIFY(x) _SD_XSTRINGIFY(x)
  40. #endif
  41. #ifndef _SD_BEGIN_DECLARATIONS
  42. # ifdef __cplusplus
  43. # define _SD_BEGIN_DECLARATIONS \
  44. extern "C" { \
  45. struct _sd_useless_struct_to_allow_trailing_semicolon_
  46. # else
  47. # define _SD_BEGIN_DECLARATIONS \
  48. struct _sd_useless_struct_to_allow_trailing_semicolon_
  49. # endif
  50. #endif
  51. #ifndef _SD_END_DECLARATIONS
  52. # ifdef __cplusplus
  53. # define _SD_END_DECLARATIONS \
  54. } \
  55. struct _sd_useless_cpp_struct_to_allow_trailing_semicolon_
  56. # else
  57. # define _SD_END_DECLARATIONS \
  58. struct _sd_useless_struct_to_allow_trailing_semicolon_
  59. # endif
  60. #endif
  61. #define _SD_DEFINE_POINTER_CLEANUP_FUNC(type, func) \
  62. static __inline__ void func##p(type **p) { \
  63. if (*p) \
  64. func(*p); \
  65. } \
  66. struct _sd_useless_struct_to_allow_trailing_semicolon_
  67. #endif