include/asm-alpha/posix_types.h

   1 #ifndef _ALPHA_POSIX_TYPES_H
   2 #define _ALPHA_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 int    __kernel_dev_t;
  11 typedef unsigned int    __kernel_ino_t;
  12 typedef unsigned int    __kernel_mode_t;
  13 typedef unsigned int    __kernel_nlink_t;
  14 typedef long            __kernel_off_t;
  15 typedef int             __kernel_pid_t;
  16 typedef int             __kernel_ipc_pid_t;
  17 typedef unsigned int    __kernel_uid_t;
  18 typedef unsigned int    __kernel_gid_t;
  19 typedef unsigned long   __kernel_size_t;
  20 typedef long            __kernel_ssize_t;
  21 typedef long            __kernel_ptrdiff_t;
  22 typedef long            __kernel_time_t;
  23 typedef long            __kernel_suseconds_t;
  24 typedef long            __kernel_clock_t;
  25 typedef int             __kernel_daddr_t;
  26 typedef char *          __kernel_caddr_t;
  27 typedef unsigned long   __kernel_sigset_t;      /* at least 32 bits */
  28
  29 #ifdef __GNUC__
  30 typedef long long       __kernel_loff_t;
  31 #endif
  32
  33 typedef struct {
  34         int     val[2];
  35 } __kernel_fsid_t;
  36
  37 #ifdef __KERNEL__
  38
  39 #ifndef __GNUC__
  40
  41 #define __FD_SET(d, set)        ((set)->fds_bits[__FDELT(d)] |= __FDMASK(d))
  42 #define __FD_CLR(d, set)        ((set)->fds_bits[__FDELT(d)] &= ~__FDMASK(d))
  43 #define __FD_ISSET(d, set)      (((set)->fds_bits[__FDELT(d)] & __FDMASK(d)) != 0)
  44 #define __FD_ZERO(set)  \
  45   ((void) memset ((__ptr_t) (set), 0, sizeof (__kernel_fd_set)))
  46
  47 #else /* __GNUC__ */
  48
  49 /* With GNU C, use inline functions instead so args are evaluated only once: */
  50
  51 #undef __FD_SET
  52 static __inline__ void __FD_SET(unsigned long fd, __kernel_fd_set *fdsetp)
  53 {
  54         unsigned long _tmp = fd / __NFDBITS;
  55         unsigned long _rem = fd % __NFDBITS;
  56         fdsetp->fds_bits[_tmp] |= (1UL<<_rem);
  57 }
  58
  59 #undef __FD_CLR
  60 static __inline__ void __FD_CLR(unsigned long fd, __kernel_fd_set *fdsetp)
  61 {
  62         unsigned long _tmp = fd / __NFDBITS;
  63         unsigned long _rem = fd % __NFDBITS;
  64         fdsetp->fds_bits[_tmp] &= ~(1UL<<_rem);
  65 }
  66
  67 #undef __FD_ISSET
  68 static __inline__ int __FD_ISSET(unsigned long fd, const __kernel_fd_set *p)
  69 {
  70         unsigned long _tmp = fd / __NFDBITS;
  71         unsigned long _rem = fd % __NFDBITS;
  72         return (p->fds_bits[_tmp] & (1UL<<_rem)) != 0;
  73 }
  74
  75 /*
  76  * This will unroll the loop for the normal constant case (8 ints,
  77  * for a 256-bit fd_set)
  78  */
  79 #undef __FD_ZERO
  80 static __inline__ void __FD_ZERO(__kernel_fd_set *p)
  81 {
  82         unsigned long *tmp = p->fds_bits;
  83         int i;
  84
  85         if (__builtin_constant_p(__FDSET_LONGS)) {
  86                 switch (__FDSET_LONGS) {
  87                       case 16:
  88                         tmp[ 0] = 0; tmp[ 1] = 0; tmp[ 2] = 0; tmp[ 3] = 0;
  89                         tmp[ 4] = 0; tmp[ 5] = 0; tmp[ 6] = 0; tmp[ 7] = 0;
  90                         tmp[ 8] = 0; tmp[ 9] = 0; tmp[10] = 0; tmp[11] = 0;
  91                         tmp[12] = 0; tmp[13] = 0; tmp[14] = 0; tmp[15] = 0;
  92                         return;
  93
  94                       case 8:
  95                         tmp[ 0] = 0; tmp[ 1] = 0; tmp[ 2] = 0; tmp[ 3] = 0;
  96                         tmp[ 4] = 0; tmp[ 5] = 0; tmp[ 6] = 0; tmp[ 7] = 0;
  97                         return;
  98
  99                       case 4:
 100                         tmp[ 0] = 0; tmp[ 1] = 0; tmp[ 2] = 0; tmp[ 3] = 0;
 101                         return;
 102                 }
 103         }
 104         i = __FDSET_LONGS;
 105         while (i) {
 106                 i--;
 107                 *tmp = 0;
 108                 tmp++;
 109         }
 110 }
 111
 112 #endif /* __GNUC__ */
 113
 114 #endif /* __KERNEL__ */
 115
 116 #endif /* _ALPHA_POSIX_TYPES_H */