include/asm-xtensa/posix_types.h

   1 /*
   2  * include/asm-xtensa/posix_types.h
   3  *
   4  * This file is subject to the terms and conditions of the GNU General Public
   5  * License.  See the file "COPYING" in the main directory of this archive
   6  * for more details.
   7  *
   8  * Largely copied from include/asm-ppc/posix_types.h
   9  *
  10  * Copyright (C) 2001 - 2005 Tensilica Inc.
  11  */
  12
  13 #ifndef _XTENSA_POSIX_TYPES_H
  14 #define _XTENSA_POSIX_TYPES_H
  15
  16 /*
  17  * This file is generally used by user-level software, so you need to
  18  * be a little careful about namespace pollution etc.  Also, we cannot
  19  * assume GCC is being used.
  20  */
  21
  22 typedef unsigned long   __kernel_ino_t;
  23 typedef unsigned int    __kernel_mode_t;
  24 typedef unsigned short  __kernel_nlink_t;
  25 typedef long            __kernel_off_t;
  26 typedef int             __kernel_pid_t;
  27 typedef unsigned short  __kernel_ipc_pid_t;
  28 typedef unsigned int    __kernel_uid_t;
  29 typedef unsigned int    __kernel_gid_t;
  30 typedef unsigned int    __kernel_size_t;
  31 typedef int             __kernel_ssize_t;
  32 typedef long            __kernel_ptrdiff_t;
  33 typedef long            __kernel_time_t;
  34 typedef long            __kernel_suseconds_t;
  35 typedef long            __kernel_clock_t;
  36 typedef int             __kernel_timer_t;
  37 typedef int             __kernel_clockid_t;
  38 typedef int             __kernel_daddr_t;
  39 typedef char *          __kernel_caddr_t;
  40 typedef unsigned short  __kernel_uid16_t;
  41 typedef unsigned short  __kernel_gid16_t;
  42 typedef unsigned int    __kernel_uid32_t;
  43 typedef unsigned int    __kernel_gid32_t;
  44
  45 typedef unsigned short  __kernel_old_uid_t;
  46 typedef unsigned short  __kernel_old_gid_t;
  47 typedef unsigned short  __kernel_old_dev_t;
  48
  49 #ifdef __GNUC__
  50 typedef long long       __kernel_loff_t;
  51 #endif
  52
  53 typedef struct {
  54         int     val[2];
  55 } __kernel_fsid_t;
  56
  57 #ifndef __GNUC__
  58
  59 #define __FD_SET(d, set)        ((set)->fds_bits[__FDELT(d)] |= __FDMASK(d))
  60 #define __FD_CLR(d, set)        ((set)->fds_bits[__FDELT(d)] &= ~__FDMASK(d))
  61 #define __FD_ISSET(d, set)      ((set)->fds_bits[__FDELT(d)] & __FDMASK(d))
  62 #define __FD_ZERO(set)  \
  63   ((void) memset ((__ptr_t) (set), 0, sizeof (__kernel_fd_set)))
  64
  65 #else /* __GNUC__ */
  66
  67 #if defined(__KERNEL__) || !defined(__GLIBC__) || (__GLIBC__ < 2) \
  68     || (__GLIBC__ == 2 && __GLIBC_MINOR__ == 0)
  69 /* With GNU C, use inline functions instead so args are evaluated only once: */
  70
  71 #undef __FD_SET
  72 static __inline__ void __FD_SET(unsigned long fd, __kernel_fd_set *fdsetp)
  73 {
  74         unsigned long _tmp = fd / __NFDBITS;
  75         unsigned long _rem = fd % __NFDBITS;
  76         fdsetp->fds_bits[_tmp] |= (1UL<<_rem);
  77 }
  78
  79 #undef __FD_CLR
  80 static __inline__ void __FD_CLR(unsigned long fd, __kernel_fd_set *fdsetp)
  81 {
  82         unsigned long _tmp = fd / __NFDBITS;
  83         unsigned long _rem = fd % __NFDBITS;
  84         fdsetp->fds_bits[_tmp] &= ~(1UL<<_rem);
  85 }
  86
  87 #undef __FD_ISSET
  88 static __inline__ int __FD_ISSET(unsigned long fd, __kernel_fd_set *p)
  89 {
  90         unsigned long _tmp = fd / __NFDBITS;
  91         unsigned long _rem = fd % __NFDBITS;
  92         return (p->fds_bits[_tmp] & (1UL<<_rem)) != 0;
  93 }
  94
  95 /*
  96  * This will unroll the loop for the normal constant case (8 ints,
  97  * for a 256-bit fd_set)
  98  */
  99 #undef __FD_ZERO
 100 static __inline__ void __FD_ZERO(__kernel_fd_set *p)
 101 {
 102         unsigned int *tmp = (unsigned int *)p->fds_bits;
 103         int i;
 104
 105         if (__builtin_constant_p(__FDSET_LONGS)) {
 106                 switch (__FDSET_LONGS) {
 107                         case 8:
 108                                 tmp[0] = 0; tmp[1] = 0; tmp[2] = 0; tmp[3] = 0;
 109                                 tmp[4] = 0; tmp[5] = 0; tmp[6] = 0; tmp[7] = 0;
 110                                 return;
 111                 }
 112         }
 113         i = __FDSET_LONGS;
 114         while (i) {
 115                 i--;
 116                 *tmp = 0;
 117                 tmp++;
 118         }
 119 }
 120
 121 #endif /* defined(__KERNEL__) || !defined(__GLIBC__) || (__GLIBC__ < 2) */
 122 #endif /* __GNUC__ */
 123 #endif /* _XTENSA_POSIX_TYPES_H */