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src/core/ngx_config.h - nginx source code

Data types defined

Macros defined

Source code


  2. /*
  3. * Copyright (C) Igor Sysoev
  4. * Copyright (C) Nginx, Inc.
  5. */


  8. #ifndef _NGX_CONFIG_H_INCLUDED_
  9. ‌#define _NGX_CONFIG_H_INCLUDED_


  12. #include <ngx_auto_headers.h>


  15. #if defined __DragonFly__ && !defined __FreeBSD__
  16. ‌#define __FreeBSD__        4
  17. ‌#define __FreeBSD_version  480101
  18. #endif


  21. #if (NGX_FREEBSD)
  22. #include <ngx_freebsd_config.h>


  25. #elif (NGX_LINUX)
  26. #include <ngx_linux_config.h>


  29. #elif (NGX_SOLARIS)
  30. #include <ngx_solaris_config.h>


  33. #elif (NGX_DARWIN)
  34. #include <ngx_darwin_config.h>


  37. #elif (NGX_WIN32)
  38. #include <ngx_win32_config.h>


  41. #else /* POSIX */
  42. #include <ngx_posix_config.h>

  44. #endif


  47. #ifndef NGX_HAVE_SO_SNDLOWAT
  48. ‌#define NGX_HAVE_SO_SNDLOWAT     1
  49. #endif


  52. #if !(NGX_WIN32)

  54. ‌#define ngx_signal_helper(n)     SIG##n
  55. ‌#define ngx_signal_value(n)      ngx_signal_helper(n)

  57. ‌#define ngx_random               random

  59. /* TODO: #ifndef */
  60. ‌#define NGX_SHUTDOWN_SIGNAL      QUIT
  61. ‌#define NGX_TERMINATE_SIGNAL     TERM
  62. ‌#define NGX_NOACCEPT_SIGNAL      WINCH
  63. ‌#define NGX_RECONFIGURE_SIGNAL   HUP

  65. #if (NGX_LINUXTHREADS)
  66. ‌#define NGX_REOPEN_SIGNAL        INFO
  67. ‌#define NGX_CHANGEBIN_SIGNAL     XCPU
  68. #else
  69. ‌#define NGX_REOPEN_SIGNAL        USR1
  70. ‌#define NGX_CHANGEBIN_SIGNAL     USR2
  71. #endif

  73. ‌#define ngx_cdecl
  74. ‌#define ngx_libc_cdecl

  76. #endif

  78. ‌typedef intptr_t        ngx_int_t;
  79. ‌typedef uintptr_t       ngx_uint_t;
  80. ‌typedef intptr_t        ngx_flag_t;


  83. ‌#define NGX_INT32_LEN   (sizeof("-2147483648") - 1)
  84. ‌#define NGX_INT64_LEN   (sizeof("-9223372036854775808") - 1)

  86. #if (NGX_PTR_SIZE == 4)
  87. ‌#define NGX_INT_T_LEN   NGX_INT32_LEN
  88. ‌#define NGX_MAX_INT_T_VALUE  2147483647

  90. #else
  91. ‌#define NGX_INT_T_LEN   NGX_INT64_LEN
  92. ‌#define NGX_MAX_INT_T_VALUE  9223372036854775807
  93. #endif


  96. #ifndef NGX_ALIGNMENT
  97. ‌#define NGX_ALIGNMENT   sizeof(unsigned long)    /* platform word */
  98. #endif

  100. ‌#define ngx_align(d, a)     (((d) + (a - 1)) & ~(a - 1))
  101. ‌#define ngx_align_ptr(p, a)                                                   \
  102.     (u_char *) (((uintptr_t) (p) + ((uintptr_t) a - 1)) & ~((uintptr_t) a - 1))


  105. ‌#define ngx_abort       abort


  108. /* TODO: platform specific: array[NGX_INVALID_ARRAY_INDEX] must cause SIGSEGV */
  109. ‌#define NGX_INVALID_ARRAY_INDEX 0x80000000


  112. /* TODO: auto_conf: ngx_inline   inline __inline __inline__ */
  113. #ifndef ngx_inline
  114. ‌#define ngx_inline      inline
  115. #endif

  117. #ifndef INADDR_NONE  /* Solaris */
  118. ‌#define INADDR_NONE  ((unsigned int) -1)
  119. #endif

  121. #ifdef MAXHOSTNAMELEN
  122. ‌#define NGX_MAXHOSTNAMELEN  MAXHOSTNAMELEN
  123. #else
  124. ‌#define NGX_MAXHOSTNAMELEN  256
  125. #endif


  128. ‌#define NGX_MAX_UINT32_VALUE  (uint32_t) 0xffffffff
  129. ‌#define NGX_MAX_INT32_VALUE   (uint32_t) 0x7fffffff


  132. #if (NGX_COMPAT)

  134. ‌#define NGX_COMPAT_BEGIN(slots)  uint64_t spare[slots];
  135. ‌#define NGX_COMPAT_END

  137. #else

  139. ‌#define NGX_COMPAT_BEGIN(slots)
  140. ‌#define NGX_COMPAT_END

  142. #endif


  145. #endif /* _NGX_CONFIG_H_INCLUDED_ */

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