kitten/include/arch-x86_64/posix_types.h

   1 #ifndef _X86_64_POSIX_TYPES_H
   2 #define _X86_64_POSIX_TYPES_H
   3
   4 /*
   5  * This file is generally used by user-level software, so you need to
   6  * be a little careful about namespace pollution etc.  Also, we cannot
   7  * assume GCC is being used.
   8  */
   9
  10 typedef unsigned long   __kernel_ino_t;
  11 typedef unsigned int    __kernel_mode_t;
  12 typedef unsigned long   __kernel_nlink_t;
  13 typedef long            __kernel_off_t;
  14 typedef int             __kernel_pid_t;
  15 typedef int             __kernel_ipc_pid_t;
  16 typedef unsigned int    __kernel_uid_t;
  17 typedef unsigned int    __kernel_gid_t;
  18 typedef unsigned long   __kernel_size_t;
  19 typedef long            __kernel_ssize_t;
  20 typedef long            __kernel_ptrdiff_t;
  21 typedef unsigned long   __kernel_uintptr_t;
  22 typedef long            __kernel_time_t;
  23 typedef long            __kernel_suseconds_t;
  24 typedef long            __kernel_clock_t;
  25 typedef int             __kernel_timer_t;
  26 typedef int             __kernel_clockid_t;
  27 typedef int             __kernel_daddr_t;
  28 typedef char *          __kernel_caddr_t;
  29 typedef long long       __kernel_loff_t;
  30
  31 typedef struct {
  32         int     val[2];
  33 } __kernel_fsid_t;
  34
  35 #ifdef __KERNEL__
  36
  37 #undef __FD_SET
  38 static __inline__ void __FD_SET(unsigned long fd, __kernel_fd_set *fdsetp)
  39 {
  40         unsigned long _tmp = fd / __NFDBITS;
  41         unsigned long _rem = fd % __NFDBITS;
  42         fdsetp->fds_bits[_tmp] |= (1UL<<_rem);
  43 }
  44
  45 #undef __FD_CLR
  46 static __inline__ void __FD_CLR(unsigned long fd, __kernel_fd_set *fdsetp)
  47 {
  48         unsigned long _tmp = fd / __NFDBITS;
  49         unsigned long _rem = fd % __NFDBITS;
  50         fdsetp->fds_bits[_tmp] &= ~(1UL<<_rem);
  51 }
  52
  53 #undef __FD_ISSET
  54 static __inline__ int __FD_ISSET(unsigned long fd, __const__ __kernel_fd_set *p)
  55 {
  56         unsigned long _tmp = fd / __NFDBITS;
  57         unsigned long _rem = fd % __NFDBITS;
  58         return (p->fds_bits[_tmp] & (1UL<<_rem)) != 0;
  59 }
  60
  61 /*
  62  * This will unroll the loop for the normal constant cases (8 or 32 longs,
  63  * for 256 and 1024-bit fd_sets respectively)
  64  */
  65 #undef __FD_ZERO
  66 static __inline__ void __FD_ZERO(__kernel_fd_set *p)
  67 {
  68         unsigned long *tmp = p->fds_bits;
  69         int i;
  70
  71         if (__builtin_constant_p(__FDSET_LONGS)) {
  72                 switch (__FDSET_LONGS) {
  73                         case 32:
  74                           tmp[ 0] = 0; tmp[ 1] = 0; tmp[ 2] = 0; tmp[ 3] = 0;
  75                           tmp[ 4] = 0; tmp[ 5] = 0; tmp[ 6] = 0; tmp[ 7] = 0;
  76                           tmp[ 8] = 0; tmp[ 9] = 0; tmp[10] = 0; tmp[11] = 0;
  77                           tmp[12] = 0; tmp[13] = 0; tmp[14] = 0; tmp[15] = 0;
  78                           tmp[16] = 0; tmp[17] = 0; tmp[18] = 0; tmp[19] = 0;
  79                           tmp[20] = 0; tmp[21] = 0; tmp[22] = 0; tmp[23] = 0;
  80                           tmp[24] = 0; tmp[25] = 0; tmp[26] = 0; tmp[27] = 0;
  81                           tmp[28] = 0; tmp[29] = 0; tmp[30] = 0; tmp[31] = 0;
  82                           return;
  83                         case 16:
  84                           tmp[ 0] = 0; tmp[ 1] = 0; tmp[ 2] = 0; tmp[ 3] = 0;
  85                           tmp[ 4] = 0; tmp[ 5] = 0; tmp[ 6] = 0; tmp[ 7] = 0;
  86                           tmp[ 8] = 0; tmp[ 9] = 0; tmp[10] = 0; tmp[11] = 0;
  87                           tmp[12] = 0; tmp[13] = 0; tmp[14] = 0; tmp[15] = 0;
  88                           return;
  89                         case 8:
  90                           tmp[ 0] = 0; tmp[ 1] = 0; tmp[ 2] = 0; tmp[ 3] = 0;
  91                           tmp[ 4] = 0; tmp[ 5] = 0; tmp[ 6] = 0; tmp[ 7] = 0;
  92                           return;
  93                         case 4:
  94                           tmp[ 0] = 0; tmp[ 1] = 0; tmp[ 2] = 0; tmp[ 3] = 0;
  95                           return;
  96                 }
  97         }
  98         i = __FDSET_LONGS;
  99         while (i) {
 100                 i--;
 101                 *tmp = 0;
 102                 tmp++;
 103         }
 104 }
 105
 106 #endif /* defined(__KERNEL__) */
 107
 108 #endif