include/asm-generic/posix_types.h

   1 #ifndef __ASM_GENERIC_POSIX_TYPES_H
   2 #define __ASM_GENERIC_POSIX_TYPES_H
   3
   4 #include <asm/bitsperlong.h>
   5 /*
   6  * This file is generally used by user-level software, so you need to
   7  * be a little careful about namespace pollution etc.
   8  *
   9  * First the types that are often defined in different ways across
  10  * architectures, so that you can override them.
  11  */
  12
  13 #ifndef __kernel_ino_t
  14 typedef unsigned long   __kernel_ino_t;
  15 #endif
  16
  17 #ifndef __kernel_mode_t
  18 typedef unsigned int    __kernel_mode_t;
  19 #endif
  20
  21 #ifndef __kernel_nlink_t
  22 typedef unsigned long   __kernel_nlink_t;
  23 #endif
  24
  25 #ifndef __kernel_pid_t
  26 typedef int             __kernel_pid_t;
  27 #endif
  28
  29 #ifndef __kernel_ipc_pid_t
  30 typedef int             __kernel_ipc_pid_t;
  31 #endif
  32
  33 #ifndef __kernel_uid_t
  34 typedef unsigned int    __kernel_uid_t;
  35 typedef unsigned int    __kernel_gid_t;
  36 #endif
  37
  38 #ifndef __kernel_suseconds_t
  39 typedef long            __kernel_suseconds_t;
  40 #endif
  41
  42 #ifndef __kernel_daddr_t
  43 typedef int             __kernel_daddr_t;
  44 #endif
  45
  46 #ifndef __kernel_uid32_t
  47 typedef __kernel_uid_t  __kernel_uid32_t;
  48 typedef __kernel_gid_t  __kernel_gid32_t;
  49 #endif
  50
  51 #ifndef __kernel_old_uid_t
  52 typedef __kernel_uid_t  __kernel_old_uid_t;
  53 typedef __kernel_gid_t  __kernel_old_gid_t;
  54 #endif
  55
  56 #ifndef __kernel_old_dev_t
  57 typedef unsigned int    __kernel_old_dev_t;
  58 #endif
  59
  60 /*
  61  * Most 32 bit architectures use "unsigned int" size_t,
  62  * and all 64 bit architectures use "unsigned long" size_t.
  63  */
  64 #ifndef __kernel_size_t
  65 #if __BITS_PER_LONG != 64
  66 typedef unsigned int    __kernel_size_t;
  67 typedef int             __kernel_ssize_t;
  68 typedef int             __kernel_ptrdiff_t;
  69 #else
  70 typedef unsigned long   __kernel_size_t;
  71 typedef long            __kernel_ssize_t;
  72 typedef long            __kernel_ptrdiff_t;
  73 #endif
  74 #endif
  75
  76 /*
  77  * anything below here should be completely generic
  78  */
  79 typedef long            __kernel_off_t;
  80 typedef long long       __kernel_loff_t;
  81 typedef long            __kernel_time_t;
  82 typedef long            __kernel_clock_t;
  83 typedef int             __kernel_timer_t;
  84 typedef int             __kernel_clockid_t;
  85 typedef char *          __kernel_caddr_t;
  86 typedef unsigned short  __kernel_uid16_t;
  87 typedef unsigned short  __kernel_gid16_t;
  88
  89 typedef struct {
  90         int     val[2];
  91 } __kernel_fsid_t;
  92
  93 #ifdef __KERNEL__
  94
  95 #undef __FD_SET
  96 static inline void __FD_SET(unsigned long __fd, __kernel_fd_set *__fdsetp)
  97 {
  98         unsigned long __tmp = __fd / __NFDBITS;
  99         unsigned long __rem = __fd % __NFDBITS;
 100         __fdsetp->fds_bits[__tmp] |= (1UL<<__rem);
 101 }
 102
 103 #undef __FD_CLR
 104 static inline void __FD_CLR(unsigned long __fd, __kernel_fd_set *__fdsetp)
 105 {
 106         unsigned long __tmp = __fd / __NFDBITS;
 107         unsigned long __rem = __fd % __NFDBITS;
 108         __fdsetp->fds_bits[__tmp] &= ~(1UL<<__rem);
 109 }
 110
 111 #undef __FD_ISSET
 112 static inline int __FD_ISSET(unsigned long __fd, const __kernel_fd_set *__p)
 113 {
 114         unsigned long __tmp = __fd / __NFDBITS;
 115         unsigned long __rem = __fd % __NFDBITS;
 116         return (__p->fds_bits[__tmp] & (1UL<<__rem)) != 0;
 117 }
 118
 119 /*
 120  * This will unroll the loop for the normal constant case (8 ints,
 121  * for a 256-bit fd_set)
 122  */
 123 #undef __FD_ZERO
 124 static inline void __FD_ZERO(__kernel_fd_set *__p)
 125 {
 126         unsigned long *__tmp = __p->fds_bits;
 127         int __i;
 128
 129         if (__builtin_constant_p(__FDSET_LONGS)) {
 130                 switch (__FDSET_LONGS) {
 131                 case 16:
 132                         __tmp[ 0] = 0; __tmp[ 1] = 0;
 133                         __tmp[ 2] = 0; __tmp[ 3] = 0;
 134                         __tmp[ 4] = 0; __tmp[ 5] = 0;
 135                         __tmp[ 6] = 0; __tmp[ 7] = 0;
 136                         __tmp[ 8] = 0; __tmp[ 9] = 0;
 137                         __tmp[10] = 0; __tmp[11] = 0;
 138                         __tmp[12] = 0; __tmp[13] = 0;
 139                         __tmp[14] = 0; __tmp[15] = 0;
 140                         return;
 141
 142                 case 8:
 143                         __tmp[ 0] = 0; __tmp[ 1] = 0;
 144                         __tmp[ 2] = 0; __tmp[ 3] = 0;
 145                         __tmp[ 4] = 0; __tmp[ 5] = 0;
 146                         __tmp[ 6] = 0; __tmp[ 7] = 0;
 147                         return;
 148
 149                 case 4:
 150                         __tmp[ 0] = 0; __tmp[ 1] = 0;
 151                         __tmp[ 2] = 0; __tmp[ 3] = 0;
 152                         return;
 153                 }
 154         }
 155         __i = __FDSET_LONGS;
 156         while (__i) {
 157                 __i--;
 158                 *__tmp = 0;
 159                 __tmp++;
 160         }
 161 }
 162
 163 #endif /* __KERNEL__ */
 164
 165 #endif /* __ASM_GENERIC_POSIX_TYPES_H */