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 long   __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 ((void *) (set), 0, sizeof (__kernel_fd_set)))
  64
  65 #else /* __GNUC__ */
  66
  67 #if defined(__KERNEL__)
  68 /* With GNU C, use inline functions instead so args are evaluated only once: */
  69
  70 #undef __FD_SET
  71 static __inline__ void __FD_SET(unsigned long fd, __kernel_fd_set *fdsetp)
  72 {
  73         unsigned long _tmp = fd / __NFDBITS;
  74         unsigned long _rem = fd % __NFDBITS;
  75         fdsetp->fds_bits[_tmp] |= (1UL<<_rem);
  76 }
  77
  78 #undef __FD_CLR
  79 static __inline__ void __FD_CLR(unsigned long fd, __kernel_fd_set *fdsetp)
  80 {
  81         unsigned long _tmp = fd / __NFDBITS;
  82         unsigned long _rem = fd % __NFDBITS;
  83         fdsetp->fds_bits[_tmp] &= ~(1UL<<_rem);
  84 }
  85
  86 #undef __FD_ISSET
  87 static __inline__ int __FD_ISSET(unsigned long fd, __kernel_fd_set *p)
  88 {
  89         unsigned long _tmp = fd / __NFDBITS;
  90         unsigned long _rem = fd % __NFDBITS;
  91         return (p->fds_bits[_tmp] & (1UL<<_rem)) != 0;
  92 }
  93
  94 /*
  95  * This will unroll the loop for the normal constant case (8 ints,
  96  * for a 256-bit fd_set)
  97  */
  98 #undef __FD_ZERO
  99 static __inline__ void __FD_ZERO(__kernel_fd_set *p)
 100 {
 101         unsigned int *tmp = (unsigned int *)p->fds_bits;
 102         int i;
 103
 104         if (__builtin_constant_p(__FDSET_LONGS)) {
 105                 switch (__FDSET_LONGS) {
 106                         case 8:
 107                                 tmp[0] = 0; tmp[1] = 0; tmp[2] = 0; tmp[3] = 0;
 108                                 tmp[4] = 0; tmp[5] = 0; tmp[6] = 0; tmp[7] = 0;
 109                                 return;
 110                 }
 111         }
 112         i = __FDSET_LONGS;
 113         while (i) {
 114                 i--;
 115                 *tmp = 0;
 116                 tmp++;
 117         }
 118 }
 119
 120 #endif /* defined(__KERNEL__) */
 121 #endif /* __GNUC__ */
 122 #endif /* _XTENSA_POSIX_TYPES_H */