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posix_types.h

#ifndef _ALPHA_POSIX_TYPES_H
#define _ALPHA_POSIX_TYPES_H

/*
 * This file is generally used by user-level software, so you need to
 * be a little careful about namespace pollution etc.  Also, we cannot
 * assume GCC is being used.
 */

typedef unsigned int    __kernel_ino_t;
typedef unsigned int    __kernel_mode_t;
typedef unsigned int    __kernel_nlink_t;
typedef long            __kernel_off_t;
typedef long long __kernel_loff_t;
typedef int       __kernel_pid_t;
typedef int       __kernel_ipc_pid_t;
typedef unsigned int    __kernel_uid_t;
typedef unsigned int    __kernel_gid_t;
typedef unsigned long   __kernel_size_t;
typedef long            __kernel_ssize_t;
typedef long            __kernel_ptrdiff_t;
typedef long            __kernel_time_t;
typedef long            __kernel_suseconds_t;
typedef long            __kernel_clock_t;
typedef int       __kernel_daddr_t;
typedef char *          __kernel_caddr_t;
typedef unsigned long   __kernel_sigset_t;      /* at least 32 bits */
typedef unsigned short  __kernel_uid16_t;
typedef unsigned short  __kernel_gid16_t;
typedef int       __kernel_clockid_t;
typedef int       __kernel_timer_t;

00033 typedef struct {
      int   val[2];
} __kernel_fsid_t;

typedef __kernel_uid_t __kernel_old_uid_t;
typedef __kernel_gid_t __kernel_old_gid_t;
typedef __kernel_uid_t __kernel_uid32_t;
typedef __kernel_gid_t __kernel_gid32_t;

typedef unsigned int    __kernel_old_dev_t;

#ifdef __KERNEL__

#ifndef __GNUC__

#define     __FD_SET(d, set)  ((set)->fds_bits[__FDELT(d)] |= __FDMASK(d))
#define     __FD_CLR(d, set)  ((set)->fds_bits[__FDELT(d)] &= ~__FDMASK(d))
#define     __FD_ISSET(d, set)      (((set)->fds_bits[__FDELT(d)] & __FDMASK(d)) != 0)
#define     __FD_ZERO(set)    \
  ((void) memset ((void *) (set), 0, sizeof (__kernel_fd_set)))

#else /* __GNUC__ */

/* With GNU C, use inline functions instead so args are evaluated only once: */

#undef __FD_SET
static __inline__ void __FD_SET(unsigned long fd, __kernel_fd_set *fdsetp)
{
      unsigned long _tmp = fd / __NFDBITS;
      unsigned long _rem = fd % __NFDBITS;
      fdsetp->fds_bits[_tmp] |= (1UL<<_rem);
}

#undef __FD_CLR
static __inline__ void __FD_CLR(unsigned long fd, __kernel_fd_set *fdsetp)
{
      unsigned long _tmp = fd / __NFDBITS;
      unsigned long _rem = fd % __NFDBITS;
      fdsetp->fds_bits[_tmp] &= ~(1UL<<_rem);
}

#undef __FD_ISSET
static __inline__ int __FD_ISSET(unsigned long fd, const __kernel_fd_set *p)
{ 
      unsigned long _tmp = fd / __NFDBITS;
      unsigned long _rem = fd % __NFDBITS;
      return (p->fds_bits[_tmp] & (1UL<<_rem)) != 0;
}

/*
 * This will unroll the loop for the normal constant case (8 ints,
 * for a 256-bit fd_set)
 */
#undef __FD_ZERO
static __inline__ void __FD_ZERO(__kernel_fd_set *p)
{
      unsigned long *tmp = p->fds_bits;
      int i;

      if (__builtin_constant_p(__FDSET_LONGS)) {
            switch (__FDSET_LONGS) {
                  case 16:
                  tmp[ 0] = 0; tmp[ 1] = 0; tmp[ 2] = 0; tmp[ 3] = 0;
                  tmp[ 4] = 0; tmp[ 5] = 0; tmp[ 6] = 0; tmp[ 7] = 0;
                  tmp[ 8] = 0; tmp[ 9] = 0; tmp[10] = 0; tmp[11] = 0;
                  tmp[12] = 0; tmp[13] = 0; tmp[14] = 0; tmp[15] = 0;
                  return;

                  case 8:
                  tmp[ 0] = 0; tmp[ 1] = 0; tmp[ 2] = 0; tmp[ 3] = 0;
                  tmp[ 4] = 0; tmp[ 5] = 0; tmp[ 6] = 0; tmp[ 7] = 0;
                  return;

                  case 4:
                  tmp[ 0] = 0; tmp[ 1] = 0; tmp[ 2] = 0; tmp[ 3] = 0;
                  return;
            }
      }
      i = __FDSET_LONGS;
      while (i) {
            i--;
            *tmp = 0;
            tmp++;
      }
}

#endif /* __GNUC__ */

#endif /* __KERNEL__ */

#endif /* _ALPHA_POSIX_TYPES_H */

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