third_party/sipcc/cpr_linux_types.h

   1 /* This Source Code Form is subject to the terms of the Mozilla Public
   2  * License, v. 2.0. If a copy of the MPL was not distributed with this
   3  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
   4
   5 #ifndef _CPR_LINUX_TYPES_H_
   6 #define _CPR_LINUX_TYPES_H_
   7
   8 #include "sys/types.h"
   9 #include "stddef.h"
  10 #include "inttypes.h"
  11
  12 /**
  13  * @typedef boolean
  14  *
  15  * Define boolean as an unsigned byte
  16  *
  17  * @note There are differences within TNP header files
  18  *    @li curses.h:   bool => char
  19  *    @li types.h:    boolean_t => enum
  20  *    @li dki_lock.h: bool_t => int
  21  */
  22 typedef uint8_t boolean;
  23
  24 /*
  25  * Define size_t
  26  *    defined in numerous header files
  27  */
  28 /* DONE (sys/types.h => unsigned int) */
  29
  30 /*
  31  * Define ssize_t
  32  */
  33 /* DONE (sys/types.h => int) */
  34
  35 /*
  36  * Define MIN/MAX
  37  *    defined in param.h
  38  *
  39  * The GNU versions of the MAX and MIN macros do two things better than
  40  * the old versions:
  41  * 1. they are more optimal as they only evaluate a & b once by creating a
  42  *    a variable of each type on the local stack.
  43  * 2. they fix potential errors due to side-effects where a and b were
  44  *    evaluated twice, i.e. MIN(i++,j++)
  45  *
  46  * @note b could be cast to a's type, to help with usage where the code
  47  *       compares signed and unsigned types.
  48  */
  49 #ifndef MIN
  50 #ifdef __GNUC__
  51 #define MIN(a,b)  ({ typeof(a) _a = (a); typeof(b) _b = (b); _a < _b ? _a : _b; })
  52 #else
  53 #define MIN(a,b) (((a) < (b)) ? (a) : (b))
  54 #endif
  55 #endif
  56
  57 #ifndef MAX
  58 #ifdef __GNUC__
  59 #define MAX(a,b)  ({ typeof(a) _a = (a); typeof(b) _b = (b); _a > _b ? _a : _b; })
  60 #else
  61 #define MAX(a,b) (((a) > (b)) ? (a) : (b))
  62 #endif
  63 #endif
  64
  65 /**
  66  * Define TRUE/FALSE
  67  *     defined in several header files
  68  */
  69 #ifndef TRUE
  70 #define TRUE 1
  71 #endif
  72
  73 #ifndef FALSE
  74 #define FALSE 0
  75 #endif
  76
  77 /*
  78  * Define offsetof
  79  */
  80 /* DONE (stddef.h) */
  81
  82 #endif