[funini.com] -> [kei@sodan] -> Kernel Reading

root/include/asm-mn10300/posix_types.h

/* [<][>][^][v][top][bottom][index][help] */

INCLUDED FROM


DEFINITIONS

This source file includes following definitions.
  1. __FD_SET
  2. __FD_CLR
  3. __FD_ISSET
  4. __FD_ZERO

/* MN10300 POSIX types
 *
 * Copyright (C) 2007 Matsushita Electric Industrial Co., Ltd.
 * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public Licence
 * as published by the Free Software Foundation; either version
 * 2 of the Licence, or (at your option) any later version.
 */
#ifndef _ASM_POSIX_TYPES_H
#define _ASM_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 long   __kernel_ino_t;
typedef unsigned short  __kernel_mode_t;
typedef unsigned short  __kernel_nlink_t;
typedef long            __kernel_off_t;
typedef int             __kernel_pid_t;
typedef unsigned short  __kernel_ipc_pid_t;
typedef unsigned short  __kernel_uid_t;
typedef unsigned short  __kernel_gid_t;
typedef unsigned long   __kernel_size_t;
typedef long            __kernel_ssize_t;
typedef int             __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;
typedef unsigned int    __kernel_uid32_t;
typedef unsigned int    __kernel_gid32_t;

typedef unsigned short  __kernel_old_uid_t;
typedef unsigned short  __kernel_old_gid_t;
typedef unsigned short  __kernel_old_dev_t;

#ifdef __GNUC__
typedef long long       __kernel_loff_t;
#endif

typedef struct {
#if defined(__KERNEL__) || defined(__USE_ALL)
        int     val[2];
#else /* !defined(__KERNEL__) && !defined(__USE_ALL) */
        int     __val[2];
#endif /* !defined(__KERNEL__) && !defined(__USE_ALL) */
} __kernel_fsid_t;

#if defined(__KERNEL__) || !defined(__GLIBC__) || (__GLIBC__ < 2)

#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 /* defined(__KERNEL__) || !defined(__GLIBC__) || (__GLIBC__ < 2) */

#endif /* _ASM_POSIX_TYPES_H */

/* [<][>][^][v][top][bottom][index][help] */

[funini.com] -> [kei@sodan] -> Kernel Reading