root/include/asm-x86/posix_types_64.h

INCLUDED FROM

DEFINITIONS

1. __FD_SET
2. __FD_CLR
3. __FD_ISSET
4. __FD_ZERO

#ifndef ASM_X86__POSIX_TYPES_64_H
#define ASM_X86__POSIX_TYPES_64_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 long   __kernel_ino_t;
typedef unsigned int    __kernel_mode_t;
typedef unsigned long   __kernel_nlink_t;
typedef long            __kernel_off_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_timer_t;
typedef int             __kernel_clockid_t;
typedef int             __kernel_daddr_t;
typedef char *          __kernel_caddr_t;
typedef unsigned short  __kernel_uid16_t;
typedef unsigned short  __kernel_gid16_t;

#ifdef __GNUC__
typedef long long       __kernel_loff_t;
#endif

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

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

typedef unsigned long   __kernel_old_dev_t;

#ifdef __KERNEL__

#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 cases (8 or 32 longs,
 * for 256 and 1024-bit fd_sets respectively)
 */
#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 32:
                        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;
                        tmp[16] = 0; tmp[17] = 0; tmp[18] = 0; tmp[19] = 0;
                        tmp[20] = 0; tmp[21] = 0; tmp[22] = 0; tmp[23] = 0;
                        tmp[24] = 0; tmp[25] = 0; tmp[26] = 0; tmp[27] = 0;
                        tmp[28] = 0; tmp[29] = 0; tmp[30] = 0; tmp[31] = 0;
                        return;
                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 /* defined(__KERNEL__) */

#endif /* ASM_X86__POSIX_TYPES_64_H */