linux.h

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#pragma once

#include <ntddk.h>

#ifndef NULL
#define NULL (void*)0
#endif

typedef struct page {
  int x;
} mem_map_t;













/* i386 */

typedef unsigned short umode_t;

/*
 * __xx is ok: it doesn't pollute the POSIX namespace. Use these in the
 * header files exported to user space
 */

typedef __signed__ char __s8;
typedef unsigned char __u8;

typedef __signed__ short __s16;
typedef unsigned short __u16;

typedef __signed__ int __s32;
typedef unsigned int __u32;

#if defined(__GNUC__) && !defined(__STRICT_ANSI__)
typedef __signed__ long long __s64;
typedef unsigned long long __u64;
#endif

/*
 * These aren't exported outside the kernel to avoid name space clashes
 */
typedef signed char s8;
typedef unsigned char u8;

typedef signed short s16;
typedef unsigned short u16;

typedef signed int s32;
typedef unsigned int u32;

typedef signed long long s64;
typedef unsigned long long u64;

#define BITS_PER_LONG 32

/* DMA addresses come in generic and 64-bit flavours.  */

#ifdef CONFIG_HIGHMEM64G
typedef u64 dma_addr_t;
#else
typedef u32 dma_addr_t;
#endif
typedef u64 dma64_addr_t;



/*
 * This allows for 1024 file descriptors: if NR_OPEN is ever grown
 * beyond that you'll have to change this too. But 1024 fd's seem to be
 * enough even for such "real" unices like OSF/1, so hopefully this is
 * one limit that doesn't have to be changed [again].
 *
 * Note that POSIX wants the FD_CLEAR(fd,fdsetp) defines to be in
 * <sys/time.h> (and thus <linux/time.h>) - but this is a more logical
 * place for them. Solved by having dummy defines in <sys/time.h>.
 */

/*
 * Those macros may have been defined in <gnu/types.h>. But we always
 * use the ones here.
 */
#undef __NFDBITS
#define __NFDBITS   (8 * sizeof(unsigned long))

#undef __FD_SETSIZE
#define __FD_SETSIZE    1024

#undef __FDSET_LONGS
#define __FDSET_LONGS   (__FD_SETSIZE/__NFDBITS)

#undef __FDELT
#define __FDELT(d)  ((d) / __NFDBITS)

#undef __FDMASK
#define __FDMASK(d) (1UL << ((d) % __NFDBITS))

typedef struct {
    unsigned long fds_bits [__FDSET_LONGS];
} __kernel_fd_set;

/* Type of a signal handler.  */
typedef void (*__kernel_sighandler_t)(int);

/* Type of a SYSV IPC key.  */
typedef int __kernel_key_t;


/*
 * 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 short  __kernel_dev_t;
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 int    __kernel_size_t;
typedef int     __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_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;

#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
#define __FD_SET(fd,fdsetp) \
        __asm__ __volatile__("btsl %1,%0": \
            "=m" (*(__kernel_fd_set *) (fdsetp)):"r" ((int) (fd)))

#undef  __FD_CLR
#define __FD_CLR(fd,fdsetp) \
        __asm__ __volatile__("btrl %1,%0": \
            "=m" (*(__kernel_fd_set *) (fdsetp)):"r" ((int) (fd)))

#undef  __FD_ISSET
#define __FD_ISSET(fd,fdsetp) (__extension__ ({ \
        unsigned char __result; \
        __asm__ __volatile__("btl %1,%2 ; setb %0" \
            :"=q" (__result) :"r" ((int) (fd)), \
            "m" (*(__kernel_fd_set *) (fdsetp))); \
        __result; }))

#undef  __FD_ZERO
#define __FD_ZERO(fdsetp) \
do { \
    int __d0, __d1; \
    __asm__ __volatile__("cld ; rep ; stosl" \
            :"=m" (*(__kernel_fd_set *) (fdsetp)), \
              "=&c" (__d0), "=&D" (__d1) \
            :"a" (0), "1" (__FDSET_LONGS), \
            "2" ((__kernel_fd_set *) (fdsetp)) : "memory"); \
} while (0)

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


#ifndef __KERNEL_STRICT_NAMES

typedef __kernel_fd_set     fd_set;
typedef __kernel_dev_t      dev_t;
typedef __kernel_ino_t      ino_t;
typedef __kernel_mode_t     mode_t;
typedef __kernel_nlink_t    nlink_t;
typedef __kernel_off_t      off_t;
typedef __kernel_pid_t      pid_t;
typedef __kernel_daddr_t    daddr_t;
typedef __kernel_key_t      key_t;
typedef __kernel_suseconds_t    suseconds_t;

#ifdef __KERNEL__
typedef __kernel_uid32_t    uid_t;
typedef __kernel_gid32_t    gid_t;
typedef __kernel_uid16_t        uid16_t;
typedef __kernel_gid16_t        gid16_t;

#ifdef CONFIG_UID16
/* This is defined by include/asm-{arch}/posix_types.h */
typedef __kernel_old_uid_t  old_uid_t;
typedef __kernel_old_gid_t  old_gid_t;
#endif /* CONFIG_UID16 */

/* libc5 includes this file to define uid_t, thus uid_t can never change
 * when it is included by non-kernel code
 */
#else
typedef __kernel_uid_t      uid_t;
typedef __kernel_gid_t      gid_t;
#endif /* __KERNEL__ */

#if defined(__GNUC__)
typedef __kernel_loff_t     loff_t;
#endif

/*
 * The following typedefs are also protected by individual ifdefs for
 * historical reasons:
 */
#ifndef _SIZE_T
#define _SIZE_T
typedef __kernel_size_t     size_t;
#endif

#ifndef _SSIZE_T
#define _SSIZE_T
typedef __kernel_ssize_t    ssize_t;
#endif

#ifndef _PTRDIFF_T
#define _PTRDIFF_T
typedef __kernel_ptrdiff_t  ptrdiff_t;
#endif

#ifndef _TIME_T
#define _TIME_T
typedef __kernel_time_t     time_t;
#endif

#ifndef _CLOCK_T
#define _CLOCK_T
typedef __kernel_clock_t    clock_t;
#endif

#ifndef _CADDR_T
#define _CADDR_T
typedef __kernel_caddr_t    caddr_t;
#endif

/* bsd */
typedef unsigned char       u_char;
typedef unsigned short      u_short;
typedef unsigned int        u_int;
typedef unsigned long       u_long;

/* sysv */
typedef unsigned char       unchar;
typedef unsigned short      ushort;
typedef unsigned int        uint;
typedef unsigned long       ulong;

#ifndef __BIT_TYPES_DEFINED__
#define __BIT_TYPES_DEFINED__

typedef     __u8        u_int8_t;
typedef     __s8        int8_t;
typedef     __u16       u_int16_t;
typedef     __s16       int16_t;
typedef     __u32       u_int32_t;
typedef     __s32       int32_t;

#endif /* !(__BIT_TYPES_DEFINED__) */

typedef     __u8        uint8_t;
typedef     __u16       uint16_t;
typedef     __u32       uint32_t;

#if defined(__GNUC__) && !defined(__STRICT_ANSI__)
typedef     __u64       uint64_t;
typedef     __u64       u_int64_t;
typedef     __s64       int64_t;
#endif

#endif /* __KERNEL_STRICT_NAMES */

/*
 * Below are truly Linux-specific types that should never collide with
 * any application/library that wants linux/types.h.
 */

struct ustat {
    __kernel_daddr_t    f_tfree;
    __kernel_ino_t      f_tinode;
    char            f_fname[6];
    char            f_fpack[6];
};














#ifndef __LITTLE_ENDIAN
#define __LITTLE_ENDIAN 1234
#endif
#ifndef __LITTLE_ENDIAN_BITFIELD
#define __LITTLE_ENDIAN_BITFIELD
#endif

#if 1 /* swab */

/*
 * linux/byteorder/swab.h
 * Byte-swapping, independently from CPU endianness
 *  swabXX[ps]?(foo)
 *
 * Francois-Rene Rideau <fare@tunes.org> 19971205
 *    separated swab functions from cpu_to_XX,
 *    to clean up support for bizarre-endian architectures.
 *
 * See asm-i386/byteorder.h and such for examples of how to provide
 * architecture-dependent optimized versions
 *
 */

/* casts are necessary for constants, because we never know how for sure
 * how U/UL/ULL map to __u16, __u32, __u64. At least not in a portable way.
 */
#define ___swab16(x) \
({ \
    __u16 __x = (x); \
    ((__u16)( \
        (((__u16)(__x) & (__u16)0x00ffU) << 8) | \
        (((__u16)(__x) & (__u16)0xff00U) >> 8) )); \
})

#define ___swab24(x) \
({ \
    __u32 __x = (x); \
    ((__u32)( \
        ((__x & (__u32)0x000000ffUL) << 16) | \
         (__x & (__u32)0x0000ff00UL)        | \
        ((__x & (__u32)0x00ff0000UL) >> 16) )); \
})

#define ___swab32(x) \
({ \
    __u32 __x = (x); \
    ((__u32)( \
        (((__u32)(__x) & (__u32)0x000000ffUL) << 24) | \
        (((__u32)(__x) & (__u32)0x0000ff00UL) <<  8) | \
        (((__u32)(__x) & (__u32)0x00ff0000UL) >>  8) | \
        (((__u32)(__x) & (__u32)0xff000000UL) >> 24) )); \
})

#define ___swab64(x) \
({ \
    __u64 __x = (x); \
    ((__u64)( \
        (__u64)(((__u64)(__x) & (__u64)0x00000000000000ffULL) << 56) | \
        (__u64)(((__u64)(__x) & (__u64)0x000000000000ff00ULL) << 40) | \
        (__u64)(((__u64)(__x) & (__u64)0x0000000000ff0000ULL) << 24) | \
        (__u64)(((__u64)(__x) & (__u64)0x00000000ff000000ULL) <<  8) | \
            (__u64)(((__u64)(__x) & (__u64)0x000000ff00000000ULL) >>  8) | \
        (__u64)(((__u64)(__x) & (__u64)0x0000ff0000000000ULL) >> 24) | \
        (__u64)(((__u64)(__x) & (__u64)0x00ff000000000000ULL) >> 40) | \
        (__u64)(((__u64)(__x) & (__u64)0xff00000000000000ULL) >> 56) )); \
})

#define ___constant_swab16(x) \
    ((__u16)( \
        (((__u16)(x) & (__u16)0x00ffU) << 8) | \
        (((__u16)(x) & (__u16)0xff00U) >> 8) ))
#define ___constant_swab24(x) \
    ((__u32)( \
        (((__u32)(x) & (__u32)0x000000ffU) << 16) | \
        (((__u32)(x) & (__u32)0x0000ff00U)    | \
        (((__u32)(x) & (__u32)0x00ff0000U) >> 16) ))
#define ___constant_swab32(x) \
    ((__u32)( \
        (((__u32)(x) & (__u32)0x000000ffUL) << 24) | \
        (((__u32)(x) & (__u32)0x0000ff00UL) <<  8) | \
        (((__u32)(x) & (__u32)0x00ff0000UL) >>  8) | \
        (((__u32)(x) & (__u32)0xff000000UL) >> 24) ))
#define ___constant_swab64(x) \
    ((__u64)( \
        (__u64)(((__u64)(x) & (__u64)0x00000000000000ffULL) << 56) | \
        (__u64)(((__u64)(x) & (__u64)0x000000000000ff00ULL) << 40) | \
        (__u64)(((__u64)(x) & (__u64)0x0000000000ff0000ULL) << 24) | \
        (__u64)(((__u64)(x) & (__u64)0x00000000ff000000ULL) <<  8) | \
            (__u64)(((__u64)(x) & (__u64)0x000000ff00000000ULL) >>  8) | \
        (__u64)(((__u64)(x) & (__u64)0x0000ff0000000000ULL) >> 24) | \
        (__u64)(((__u64)(x) & (__u64)0x00ff000000000000ULL) >> 40) | \
        (__u64)(((__u64)(x) & (__u64)0xff00000000000000ULL) >> 56) ))

/*
 * provide defaults when no architecture-specific optimization is detected
 */
#ifndef __arch__swab16
#  define __arch__swab16(x) ({ __u16 __tmp = (x) ; ___swab16(__tmp); })
#endif
#ifndef __arch__swab24
#  define __arch__swab24(x) ({ __u32 __tmp = (x) ; ___swab24(__tmp); })
#endif
#ifndef __arch__swab32
#  define __arch__swab32(x) ({ __u32 __tmp = (x) ; ___swab32(__tmp); })
#endif
#ifndef __arch__swab64
#  define __arch__swab64(x) ({ __u64 __tmp = (x) ; ___swab64(__tmp); })
#endif

#ifndef __arch__swab16p
#  define __arch__swab16p(x) __arch__swab16(*(x))
#endif
#ifndef __arch__swab24p
#  define __arch__swab24p(x) __arch__swab24(*(x))
#endif
#ifndef __arch__swab32p
#  define __arch__swab32p(x) __arch__swab32(*(x))
#endif
#ifndef __arch__swab64p
#  define __arch__swab64p(x) __arch__swab64(*(x))
#endif

#ifndef __arch__swab16s
#  define __arch__swab16s(x) do { *(x) = __arch__swab16p((x)); } while (0)
#endif
#ifndef __arch__swab24s
#  define __arch__swab24s(x) do { *(x) = __arch__swab24p((x)); } while (0)
#endif
#ifndef __arch__swab32s
#  define __arch__swab32s(x) do { *(x) = __arch__swab32p((x)); } while (0)
#endif
#ifndef __arch__swab64s
#  define __arch__swab64s(x) do { *(x) = __arch__swab64p((x)); } while (0)
#endif


/*
 * Allow constant folding
 */
#if defined(__GNUC__) && (__GNUC__ >= 2) && defined(__OPTIMIZE__)
#  define __swab16(x) \
(__builtin_constant_p((__u16)(x)) ? \
 ___swab16((x)) : \
 __fswab16((x)))
#  define __swab24(x) \
(__builtin_constant_p((__u32)(x)) ? \
 ___swab24((x)) : \
 __fswab24((x)))
#  define __swab32(x) \
(__builtin_constant_p((__u32)(x)) ? \
 ___swab32((x)) : \
 __fswab32((x)))
#  define __swab64(x) \
(__builtin_constant_p((__u64)(x)) ? \
 ___swab64((x)) : \
 __fswab64((x)))
#else
#  define __swab16(x) __fswab16(x)
#  define __swab24(x) __fswab24(x)
#  define __swab32(x) __fswab32(x)
#  define __swab64(x) __fswab64(x)
#endif /* OPTIMIZE */


static __inline__ __const__ __u16 __fswab16(__u16 x)
{
    return __arch__swab16(x);
}
static __inline__ __u16 __swab16p(__u16 *x)
{
    return __arch__swab16p(x);
}
static __inline__ void __swab16s(__u16 *addr)
{
    __arch__swab16s(addr);
}

static __inline__ __const__ __u32 __fswab24(__u32 x)
{
    return __arch__swab24(x);
}
static __inline__ __u32 __swab24p(__u32 *x)
{
    return __arch__swab24p(x);
}
static __inline__ void __swab24s(__u32 *addr)
{
    __arch__swab24s(addr);
}

static __inline__ __const__ __u32 __fswab32(__u32 x)
{
    return __arch__swab32(x);
}
static __inline__ __u32 __swab32p(__u32 *x)
{
    return __arch__swab32p(x);
}
static __inline__ void __swab32s(__u32 *addr)
{
    __arch__swab32s(addr);
}

#ifdef __BYTEORDER_HAS_U64__
static __inline__ __const__ __u64 __fswab64(__u64 x)
{
#  ifdef __SWAB_64_THRU_32__
    __u32 h = x >> 32;
        __u32 l = x & ((1ULL<<32)-1);
        return (((__u64)__swab32(l)) << 32) | ((__u64)(__swab32(h)));
#  else
    return __arch__swab64(x);
#  endif
}
static __inline__ __u64 __swab64p(__u64 *x)
{
    return __arch__swab64p(x);
}
static __inline__ void __swab64s(__u64 *addr)
{
    __arch__swab64s(addr);
}
#endif /* __BYTEORDER_HAS_U64__ */

#if defined(__KERNEL__)
#define swab16 __swab16
#define swab24 __swab24
#define swab32 __swab32
#define swab64 __swab64
#define swab16p __swab16p
#define swab24p __swab24p
#define swab32p __swab32p
#define swab64p __swab64p
#define swab16s __swab16s
#define swab24s __swab24s
#define swab32s __swab32s
#define swab64s __swab64s
#endif

#endif /* swab */



#if 1 /* generic */

/*
 * linux/byteorder_generic.h
 * Generic Byte-reordering support
 *
 * Francois-Rene Rideau <fare@tunes.org> 19970707
 *    gathered all the good ideas from all asm-foo/byteorder.h into one file,
 *    cleaned them up.
 *    I hope it is compliant with non-GCC compilers.
 *    I decided to put __BYTEORDER_HAS_U64__ in byteorder.h,
 *    because I wasn't sure it would be ok to put it in types.h
 *    Upgraded it to 2.1.43
 * Francois-Rene Rideau <fare@tunes.org> 19971012
 *    Upgraded it to 2.1.57
 *    to please Linus T., replaced huge #ifdef's between little/big endian
 *    by nestedly #include'd files.
 * Francois-Rene Rideau <fare@tunes.org> 19971205
 *    Made it to 2.1.71; now a facelift:
 *    Put files under include/linux/byteorder/
 *    Split swab from generic support.
 *
 * TODO:
 *   = Regular kernel maintainers could also replace all these manual
 *    byteswap macros that remain, disseminated among drivers,
 *    after some grep or the sources...
 *   = Linus might want to rename all these macros and files to fit his taste,
 *    to fit his personal naming scheme.
 *   = it seems that a few drivers would also appreciate
 *    nybble swapping support...
 *   = every architecture could add their byteswap macro in asm/byteorder.h
 *    see how some architectures already do (i386, alpha, ppc, etc)
 *   = cpu_to_beXX and beXX_to_cpu might some day need to be well
 *    distinguished throughout the kernel. This is not the case currently,
 *    since little endian, big endian, and pdp endian machines needn't it.
 *    But this might be the case for, say, a port of Linux to 20/21 bit
 *    architectures (and F21 Linux addict around?).
 */

/*
 * The following macros are to be defined by <asm/byteorder.h>:
 *
 * Conversion of long and short int between network and host format
 *  ntohl(__u32 x)
 *  ntohs(__u16 x)
 *  htonl(__u32 x)
 *  htons(__u16 x)
 * It seems that some programs (which? where? or perhaps a standard? POSIX?)
 * might like the above to be functions, not macros (why?).
 * if that's true, then detect them, and take measures.
 * Anyway, the measure is: define only ___ntohl as a macro instead,
 * and in a separate file, have
 * unsigned long inline ntohl(x){return ___ntohl(x);}
 *
 * The same for constant arguments
 *  __constant_ntohl(__u32 x)
 *  __constant_ntohs(__u16 x)
 *  __constant_htonl(__u32 x)
 *  __constant_htons(__u16 x)
 *
 * Conversion of XX-bit integers (16- 32- or 64-)
 * between native CPU format and little/big endian format
 * 64-bit stuff only defined for proper architectures
 *  cpu_to_[bl]eXX(__uXX x)
 *  [bl]eXX_to_cpu(__uXX x)
 *
 * The same, but takes a pointer to the value to convert
 *  cpu_to_[bl]eXXp(__uXX x)
 *  [bl]eXX_to_cpup(__uXX x)
 *
 * The same, but change in situ
 *  cpu_to_[bl]eXXs(__uXX x)
 *  [bl]eXX_to_cpus(__uXX x)
 *
 * See asm-foo/byteorder.h for examples of how to provide
 * architecture-optimized versions
 *
 */


#if defined(__KERNEL__)
/*
 * inside the kernel, we can use nicknames;
 * outside of it, we must avoid POSIX namespace pollution...
 */
#define cpu_to_le64 __cpu_to_le64
#define le64_to_cpu __le64_to_cpu
#define cpu_to_le32 __cpu_to_le32
#define le32_to_cpu __le32_to_cpu
#define cpu_to_le16 __cpu_to_le16
#define le16_to_cpu __le16_to_cpu
#define cpu_to_be64 __cpu_to_be64
#define be64_to_cpu __be64_to_cpu
#define cpu_to_be32 __cpu_to_be32
#define be32_to_cpu __be32_to_cpu
#define cpu_to_be16 __cpu_to_be16
#define be16_to_cpu __be16_to_cpu
#define cpu_to_le64p __cpu_to_le64p
#define le64_to_cpup __le64_to_cpup
#define cpu_to_le32p __cpu_to_le32p
#define le32_to_cpup __le32_to_cpup
#define cpu_to_le16p __cpu_to_le16p
#define le16_to_cpup __le16_to_cpup
#define cpu_to_be64p __cpu_to_be64p
#define be64_to_cpup __be64_to_cpup
#define cpu_to_be32p __cpu_to_be32p
#define be32_to_cpup __be32_to_cpup
#define cpu_to_be16p __cpu_to_be16p
#define be16_to_cpup __be16_to_cpup
#define cpu_to_le64s __cpu_to_le64s
#define le64_to_cpus __le64_to_cpus
#define cpu_to_le32s __cpu_to_le32s
#define le32_to_cpus __le32_to_cpus
#define cpu_to_le16s __cpu_to_le16s
#define le16_to_cpus __le16_to_cpus
#define cpu_to_be64s __cpu_to_be64s
#define be64_to_cpus __be64_to_cpus
#define cpu_to_be32s __cpu_to_be32s
#define be32_to_cpus __be32_to_cpus
#define cpu_to_be16s __cpu_to_be16s
#define be16_to_cpus __be16_to_cpus
#endif


/*
 * Handle ntohl and suches. These have various compatibility
 * issues - like we want to give the prototype even though we
 * also have a macro for them in case some strange program
 * wants to take the address of the thing or something..
 *
 * Note that these used to return a "long" in libc5, even though
 * long is often 64-bit these days.. Thus the casts.
 *
 * They have to be macros in order to do the constant folding
 * correctly - if the argument passed into a inline function
 * it is no longer constant according to gcc..
 */

#undef ntohl
#undef ntohs
#undef htonl
#undef htons

/*
 * Do the prototypes. Somebody might want to take the
 * address or some such sick thing..
 */
#if defined(__KERNEL__) || (defined (__GLIBC__) && __GLIBC__ >= 2)
extern __u32            ntohl(__u32);
extern __u32            htonl(__u32);
#else
extern unsigned long int    ntohl(unsigned long int);
extern unsigned long int    htonl(unsigned long int);
#endif
extern unsigned short int   ntohs(unsigned short int);
extern unsigned short int   htons(unsigned short int);


#if defined(__GNUC__) && (__GNUC__ >= 2) && defined(__OPTIMIZE__) && !defined(__STRICT_ANSI__)

#define ___htonl(x) __cpu_to_be32(x)
#define ___htons(x) __cpu_to_be16(x)
#define ___ntohl(x) __be32_to_cpu(x)
#define ___ntohs(x) __be16_to_cpu(x)

#if defined(__KERNEL__) || (defined (__GLIBC__) && __GLIBC__ >= 2)
#define htonl(x) ___htonl(x)
#define ntohl(x) ___ntohl(x)
#else
#define htonl(x) ((unsigned long)___htonl(x))
#define ntohl(x) ((unsigned long)___ntohl(x))
#endif
#define htons(x) ___htons(x)
#define ntohs(x) ___ntohs(x)

#endif /* OPTIMIZE */

#endif /* generic */


#define __constant_htonl(x) ___constant_swab32((x))
#define __constant_ntohl(x) ___constant_swab32((x))
#define __constant_htons(x) ___constant_swab16((x))
#define __constant_ntohs(x) ___constant_swab16((x))
#define __constant_cpu_to_le64(x) ((__u64)(x))
#define __constant_le64_to_cpu(x) ((__u64)(x))
#define __constant_cpu_to_le32(x) ((__u32)(x))
#define __constant_le32_to_cpu(x) ((__u32)(x))
#define __constant_cpu_to_le24(x) ((__u32)(x))
#define __constant_le24_to_cpu(x) ((__u32)(x))
#define __constant_cpu_to_le16(x) ((__u16)(x))
#define __constant_le16_to_cpu(x) ((__u16)(x))
#define __constant_cpu_to_be64(x) ___constant_swab64((x))
#define __constant_be64_to_cpu(x) ___constant_swab64((x))
#define __constant_cpu_to_be32(x) ___constant_swab32((x))
#define __constant_be32_to_cpu(x) ___constant_swab32((x))
#define __constant_cpu_to_be24(x) ___constant_swab24((x))
#define __constant_be24_to_cpu(x) ___constant_swab24((x))
#define __constant_cpu_to_be16(x) ___constant_swab16((x))
#define __constant_be16_to_cpu(x) ___constant_swab16((x))
#define __cpu_to_le64(x) ((__u64)(x))
#define __le64_to_cpu(x) ((__u64)(x))
#define __cpu_to_le32(x) ((__u32)(x))
#define __le32_to_cpu(x) ((__u32)(x))
#define __cpu_to_le24(x) ((__u32)(x))
#define __le24_to_cpu(x) ((__u32)(x))
#define __cpu_to_le16(x) ((__u16)(x))
#define __le16_to_cpu(x) ((__u16)(x))
#define __cpu_to_be64(x) __swab64((x))
#define __be64_to_cpu(x) __swab64((x))
#define __cpu_to_be32(x) __swab32((x))
#define __be32_to_cpu(x) __swab32((x))
#define __cpu_to_be24(x) __swab24((x))
#define __be24_to_cpu(x) __swab24((x))
#define __cpu_to_be16(x) __swab16((x))
#define __be16_to_cpu(x) __swab16((x))
#define __cpu_to_le64p(x) (*(__u64*)(x))
#define __le64_to_cpup(x) (*(__u64*)(x))
#define __cpu_to_le32p(x) (*(__u32*)(x))
#define __le32_to_cpup(x) (*(__u32*)(x))
#define __cpu_to_le24p(x) (*(__u32*)(x))
#define __le24_to_cpup(x) (*(__u32*)(x))
#define __cpu_to_le16p(x) (*(__u16*)(x))
#define __le16_to_cpup(x) (*(__u16*)(x))
#define __cpu_to_be64p(x) __swab64p((x))
#define __be64_to_cpup(x) __swab64p((x))
#define __cpu_to_be32p(x) __swab32p((x))
#define __be32_to_cpup(x) __swab32p((x))
#define __cpu_to_be24p(x) __swab24p((x))
#define __be24_to_cpup(x) __swab24p((x))
#define __cpu_to_be16p(x) __swab16p((x))
#define __be16_to_cpup(x) __swab16p((x))
#define __cpu_to_le64s(x) do {} while (0)
#define __le64_to_cpus(x) do {} while (0)
#define __cpu_to_le32s(x) do {} while (0)
#define __le32_to_cpus(x) do {} while (0)
#define __cpu_to_le24s(x) do {} while (0)
#define __le24_to_cpus(x) do {} while (0)
#define __cpu_to_le16s(x) do {} while (0)
#define __le16_to_cpus(x) do {} while (0)
#define __cpu_to_be64s(x) __swab64s((x))
#define __be64_to_cpus(x) __swab64s((x))
#define __cpu_to_be32s(x) __swab32s((x))
#define __be32_to_cpus(x) __swab32s((x))
#define __cpu_to_be24s(x) __swab24s((x))
#define __be24_to_cpus(x) __swab24s((x))
#define __cpu_to_be16s(x) __swab16s((x))
#define __be16_to_cpus(x) __swab16s((x))








#if 1

/* Dummy types */

#define ____cacheline_aligned

typedef struct
{
  volatile unsigned int lock;
} rwlock_t;

typedef struct {
    volatile unsigned int lock;
} spinlock_t;

struct task_struct;





#if 1 /* atomic */

/*
 * Atomic operations that C can't guarantee us.  Useful for
 * resource counting etc..
 */

#ifdef CONFIG_SMP
#define LOCK "lock ; "
#else
#define LOCK ""
#endif

/*
 * Make sure gcc doesn't try to be clever and move things around
 * on us. We need to use _exactly_ the address the user gave us,
 * not some alias that contains the same information.
 */
typedef struct { volatile int counter; } atomic_t;

#define ATOMIC_INIT(i)  { (i) }

#define atomic_read(v)      ((v)->counter)

#define atomic_set(v,i)     (((v)->counter) = (i))

static __inline__ void atomic_add(int i, atomic_t *v)
{
#if 0
    __asm__ __volatile__(
        LOCK "addl %1,%0"
        :"=m" (v->counter)
        :"ir" (i), "m" (v->counter));
#endif
}

static __inline__ void atomic_sub(int i, atomic_t *v)
{
#if 0
    __asm__ __volatile__(
        LOCK "subl %1,%0"
        :"=m" (v->counter)
        :"ir" (i), "m" (v->counter));
#endif
}

static __inline__ int atomic_sub_and_test(int i, atomic_t *v)
{
#if 0
    unsigned char c;

    __asm__ __volatile__(
        LOCK "subl %2,%0; sete %1"
        :"=m" (v->counter), "=qm" (c)
        :"ir" (i), "m" (v->counter) : "memory");
    return c;
#endif
}

static __inline__ void atomic_inc(atomic_t *v)
{
#if 0
    __asm__ __volatile__(
        LOCK "incl %0"
        :"=m" (v->counter)
        :"m" (v->counter));
#endif
}

static __inline__ void atomic_dec(atomic_t *v)
{
#if 0
    __asm__ __volatile__(
        LOCK "decl %0"
        :"=m" (v->counter)
        :"m" (v->counter));
#endif
}

static __inline__ int atomic_dec_and_test(atomic_t *v)
{
#if 0
    unsigned char c;

    __asm__ __volatile__(
        LOCK "decl %0; sete %1"
        :"=m" (v->counter), "=qm" (c)
        :"m" (v->counter) : "memory");
    return c != 0;
#else
  return 1;
#endif
}

static __inline__ int atomic_inc_and_test(atomic_t *v)
{
#if 0
    unsigned char c;

    __asm__ __volatile__(
        LOCK "incl %0; sete %1"
        :"=m" (v->counter), "=qm" (c)
        :"m" (v->counter) : "memory");
    return c != 0;
#else
  return 1;
#endif
}

static __inline__ int atomic_add_negative(int i, atomic_t *v)
{
#if 0
    unsigned char c;

    __asm__ __volatile__(
        LOCK "addl %2,%0; sets %1"
        :"=m" (v->counter), "=qm" (c)
        :"ir" (i), "m" (v->counter) : "memory");
    return c;
#else
  return 0;
#endif
}

/* These are x86-specific, used by some header files */
#define atomic_clear_mask(mask, addr)
#if 0
__asm__ __volatile__(LOCK "andl %0,%1" \
: : "r" (~(mask)),"m" (*addr) : "memory")
#endif

#define atomic_set_mask(mask, addr)
#if 0
__asm__ __volatile__(LOCK "orl %0,%1" \
: : "r" (mask),"m" (*addr) : "memory")
#endif

/* Atomic operations are already serializing on x86 */
#define smp_mb__before_atomic_dec()
#define smp_mb__after_atomic_dec()
#define smp_mb__before_atomic_inc()
#define smp_mb__after_atomic_inc()



#endif /* atomic */





#if 1 /* list */

struct list_head {
    struct list_head *next, *prev;
};

#define LIST_HEAD_INIT(name) { &(name), &(name) }

#define LIST_HEAD(name) \
    struct list_head name = LIST_HEAD_INIT(name)

#define INIT_LIST_HEAD(ptr) do { \
    (ptr)->next = (ptr); (ptr)->prev = (ptr); \
} while (0)

/*
 * Insert a new entry between two known consecutive entries.
 *
 * This is only for internal list manipulation where we know
 * the prev/next entries already!
 */
static inline void __list_add(struct list_head *new,
                  struct list_head *prev,
                  struct list_head *next)
{
#if 0
    next->prev = new;
    new->next = next;
    new->prev = prev;
    prev->next = new;
#endif
}

static inline void list_add(struct list_head *new, struct list_head *head)
{
#if 0
    __list_add(new, head, head->next);
#endif
}

static inline void list_add_tail(struct list_head *new, struct list_head *head)
{
#if 0
    __list_add(new, head->prev, head);
#endif
}

/*
 * Delete a list entry by making the prev/next entries
 * point to each other.
 *
 * This is only for internal list manipulation where we know
 * the prev/next entries already!
 */
static inline void __list_del(struct list_head *prev, struct list_head *next)
{
    next->prev = prev;
    prev->next = next;
}

static inline void list_del(struct list_head *entry)
{
#if 0
    __list_del(entry->prev, entry->next);
    entry->next = (void *) 0;
    entry->prev = (void *) 0;
#endif
}

static inline void list_del_init(struct list_head *entry)
{
#if 0
    __list_del(entry->prev, entry->next);
    INIT_LIST_HEAD(entry);
#endif
}

static inline void list_move(struct list_head *list, struct list_head *head)
{
#if 0
        __list_del(list->prev, list->next);
        list_add(list, head);
#endif
}

static inline void list_move_tail(struct list_head *list,
                  struct list_head *head)
{
#if 0
        __list_del(list->prev, list->next);
        list_add_tail(list, head);
#endif
}

static inline int list_empty(struct list_head *head)
{
    return head->next == head;
}

static inline void __list_splice(struct list_head *list,
                 struct list_head *head)
{
#if 0
    struct list_head *first = list->next;
    struct list_head *last = list->prev;
    struct list_head *at = head->next;

    first->prev = head;
    head->next = first;

    last->next = at;
    at->prev = last;
#endif
}

static inline void list_splice(struct list_head *list, struct list_head *head)
{
#if 0
    if (!list_empty(list))
        __list_splice(list, head);
#endif
}

static inline void list_splice_init(struct list_head *list,
                    struct list_head *head)
{
#if 0
    if (!list_empty(list)) {
        __list_splice(list, head);
        INIT_LIST_HEAD(list);
    }
#endif
}

#define list_entry(ptr, type, member)
#if 0
    ((type *)((char *)(ptr)-(unsigned long)(&((type *)0)->member)))
#endif

#define list_for_each(pos, head)
#if 0
    for (pos = (head)->next, prefetch(pos->next); pos != (head); \
            pos = pos->next, prefetch(pos->next))
#endif

#define list_for_each_prev(pos, head)
#if 0
    for (pos = (head)->prev, prefetch(pos->prev); pos != (head); \
            pos = pos->prev, prefetch(pos->prev))
#endif

#define list_for_each_safe(pos, n, head)
#if 0
    for (pos = (head)->next, n = pos->next; pos != (head); \
        pos = n, n = pos->next)
#endif

#define list_for_each_entry(pos, head, member)
#if 0
    for (pos = list_entry((head)->next, typeof(*pos), member),  \
             prefetch(pos->member.next);            \
         &pos->member != (head);                    \
         pos = list_entry(pos->member.next, typeof(*pos), member),  \
             prefetch(pos->member.next))
#endif

#endif /* list */





#if 1 /* wait */

#define WNOHANG     0x00000001
#define WUNTRACED   0x00000002

#define __WNOTHREAD 0x20000000  /* Don't wait on children of other threads in this group */
#define __WALL      0x40000000  /* Wait on all children, regardless of type */
#define __WCLONE    0x80000000  /* Wait only on non-SIGCHLD children */

#if 0
#include <linux/kernel.h>
#include <linux/list.h>
#include <linux/stddef.h>
#include <linux/spinlock.h>
#include <linux/config.h>

#include <asm/page.h>
#include <asm/processor.h>
#endif

/*
 * Debug control.  Slow but useful.
 */
#if defined(CONFIG_DEBUG_WAITQ)
#define WAITQUEUE_DEBUG 1
#else
#define WAITQUEUE_DEBUG 0
#endif

struct __wait_queue {
    unsigned int flags;
#define WQ_FLAG_EXCLUSIVE   0x01
    struct task_struct * task;
    struct list_head task_list;
#if WAITQUEUE_DEBUG
    long __magic;
    long __waker;
#endif
};
typedef struct __wait_queue wait_queue_t;

/*
 * 'dual' spinlock architecture. Can be switched between spinlock_t and
 * rwlock_t locks via changing this define. Since waitqueues are quite
 * decoupled in the new architecture, lightweight 'simple' spinlocks give
 * us slightly better latencies and smaller waitqueue structure size.
 */
#define USE_RW_WAIT_QUEUE_SPINLOCK 0

#if USE_RW_WAIT_QUEUE_SPINLOCK
# define wq_lock_t rwlock_t
# define WAITQUEUE_RW_LOCK_UNLOCKED RW_LOCK_UNLOCKED

# define wq_read_lock read_lock
# define wq_read_lock_irqsave read_lock_irqsave
# define wq_read_unlock_irqrestore read_unlock_irqrestore
# define wq_read_unlock read_unlock
# define wq_write_lock_irq write_lock_irq
# define wq_write_lock_irqsave write_lock_irqsave
# define wq_write_unlock_irqrestore write_unlock_irqrestore
# define wq_write_unlock write_unlock
#else
# define wq_lock_t spinlock_t
# define WAITQUEUE_RW_LOCK_UNLOCKED SPIN_LOCK_UNLOCKED

# define wq_read_lock spin_lock
# define wq_read_lock_irqsave spin_lock_irqsave
# define wq_read_unlock spin_unlock
# define wq_read_unlock_irqrestore spin_unlock_irqrestore
# define wq_write_lock_irq spin_lock_irq
# define wq_write_lock_irqsave spin_lock_irqsave
# define wq_write_unlock_irqrestore spin_unlock_irqrestore
# define wq_write_unlock spin_unlock
#endif

struct __wait_queue_head {
    wq_lock_t lock;
    struct list_head task_list;
#if WAITQUEUE_DEBUG
    long __magic;
    long __creator;
#endif
};
typedef struct __wait_queue_head wait_queue_head_t;


/*
 * Debugging macros.  We eschew `do { } while (0)' because gcc can generate
 * spurious .aligns.
 */
#if WAITQUEUE_DEBUG
#define WQ_BUG()    BUG()
#define CHECK_MAGIC(x)
#if 0
    do {                                    \
        if ((x) != (long)&(x)) {                    \
            printk("bad magic %lx (should be %lx), ",       \
                (long)x, (long)&(x));               \
            WQ_BUG();                       \
        }                               \
    } while (0)
#endif

#define CHECK_MAGIC_WQHEAD(x)
#if 0
    do {                                    \
        if ((x)->__magic != (long)&((x)->__magic)) {            \
            printk("bad magic %lx (should be %lx, creator %lx), ",  \
            (x)->__magic, (long)&((x)->__magic), (x)->__creator);   \
            WQ_BUG();                       \
        }                               \
    } while (0)
#endif

#define WQ_CHECK_LIST_HEAD(list)
#if 0
    do {                                    \
        if (!(list)->next || !(list)->prev)             \
            WQ_BUG();                       \
    } while(0)
#endif

#define WQ_NOTE_WAKER(tsk)
#if 0
    do {                                    \
        (tsk)->__waker = (long)__builtin_return_address(0);     \
    } while (0)
#endif
#else
#define WQ_BUG()
#define CHECK_MAGIC(x)
#define CHECK_MAGIC_WQHEAD(x)
#define WQ_CHECK_LIST_HEAD(list)
#define WQ_NOTE_WAKER(tsk)
#endif

/*
 * Macros for declaration and initialisation of the datatypes
 */

#if WAITQUEUE_DEBUG
# define __WAITQUEUE_DEBUG_INIT(name) //(long)&(name).__magic, 0
# define __WAITQUEUE_HEAD_DEBUG_INIT(name) //(long)&(name).__magic, (long)&(name).__magic
#else
# define __WAITQUEUE_DEBUG_INIT(name)
# define __WAITQUEUE_HEAD_DEBUG_INIT(name)
#endif

#define __WAITQUEUE_INITIALIZER(name, tsk)
#if 0
{
    task:       tsk,                        \
    task_list:  { NULL, NULL },                 \
             __WAITQUEUE_DEBUG_INIT(name)}
#endif

#define DECLARE_WAITQUEUE(name, tsk)
#if 0
    wait_queue_t name = __WAITQUEUE_INITIALIZER(name, tsk)
#endif

#define __WAIT_QUEUE_HEAD_INITIALIZER(name)
#if 0
{
    lock:       WAITQUEUE_RW_LOCK_UNLOCKED,         \
    task_list:  { &(name).task_list, &(name).task_list },   \
            __WAITQUEUE_HEAD_DEBUG_INIT(name)}
#endif

#define DECLARE_WAIT_QUEUE_HEAD(name)
#if 0
    wait_queue_head_t name = __WAIT_QUEUE_HEAD_INITIALIZER(name)
#endif

static inline void init_waitqueue_head(wait_queue_head_t *q)
{
#if 0
#if WAITQUEUE_DEBUG
    if (!q)
        WQ_BUG();
#endif
    q->lock = WAITQUEUE_RW_LOCK_UNLOCKED;
    INIT_LIST_HEAD(&q->task_list);
#if WAITQUEUE_DEBUG
    q->__magic = (long)&q->__magic;
    q->__creator = (long)current_text_addr();
#endif
#endif
}

static inline void init_waitqueue_entry(wait_queue_t *q, struct task_struct *p)
{
#if 0
#if WAITQUEUE_DEBUG
    if (!q || !p)
        WQ_BUG();
#endif
    q->flags = 0;
    q->task = p;
#if WAITQUEUE_DEBUG
    q->__magic = (long)&q->__magic;
#endif
#endif
}

static inline int waitqueue_active(wait_queue_head_t *q)
{
#if 0
#if WAITQUEUE_DEBUG
    if (!q)
        WQ_BUG();
    CHECK_MAGIC_WQHEAD(q);
#endif

    return !list_empty(&q->task_list);
#endif
}

static inline void __add_wait_queue(wait_queue_head_t *head, wait_queue_t *new)
{
#if 0
#if WAITQUEUE_DEBUG
    if (!head || !new)
        WQ_BUG();
    CHECK_MAGIC_WQHEAD(head);
    CHECK_MAGIC(new->__magic);
    if (!head->task_list.next || !head->task_list.prev)
        WQ_BUG();
#endif
    list_add(&new->task_list, &head->task_list);
#endif
}

/*
 * Used for wake-one threads:
 */
static inline void __add_wait_queue_tail(wait_queue_head_t *head,
                        wait_queue_t *new)
{
#if 0
#if WAITQUEUE_DEBUG
    if (!head || !new)
        WQ_BUG();
    CHECK_MAGIC_WQHEAD(head);
    CHECK_MAGIC(new->__magic);
    if (!head->task_list.next || !head->task_list.prev)
        WQ_BUG();
#endif
    list_add_tail(&new->task_list, &head->task_list);
#endif
}

static inline void __remove_wait_queue(wait_queue_head_t *head,
                            wait_queue_t *old)
{
#if 0
#if WAITQUEUE_DEBUG
    if (!old)
        WQ_BUG();
    CHECK_MAGIC(old->__magic);
#endif
    list_del(&old->task_list);
#endif
}




#endif /* wait */


#endif




#if 1 /* slab */

typedef struct
{
 int x;
} kmem_cache_s;

typedef struct kmem_cache_s kmem_cache_t;

#if 0
#include    <linux/mm.h>
#include    <linux/cache.h>
#endif

/* flags for kmem_cache_alloc() */
#define SLAB_NOFS       GFP_NOFS
#define SLAB_NOIO       GFP_NOIO
#define SLAB_NOHIGHIO       GFP_NOHIGHIO
#define SLAB_ATOMIC     GFP_ATOMIC
#define SLAB_USER       GFP_USER
#define SLAB_KERNEL     GFP_KERNEL
#define SLAB_NFS        GFP_NFS
#define SLAB_DMA        GFP_DMA

#define SLAB_LEVEL_MASK     (__GFP_WAIT|__GFP_HIGH|__GFP_IO|__GFP_HIGHIO|__GFP_FS)
#define SLAB_NO_GROW        0x00001000UL    /* don't grow a cache */

/* flags to pass to kmem_cache_create().
 * The first 3 are only valid when the allocator as been build
 * SLAB_DEBUG_SUPPORT.
 */
#define SLAB_DEBUG_FREE     0x00000100UL    /* Perform (expensive) checks on free */
#define SLAB_DEBUG_INITIAL  0x00000200UL    /* Call constructor (as verifier) */
#define SLAB_RED_ZONE       0x00000400UL    /* Red zone objs in a cache */
#define SLAB_POISON     0x00000800UL    /* Poison objects */
#define SLAB_NO_REAP        0x00001000UL    /* never reap from the cache */
#define SLAB_HWCACHE_ALIGN  0x00002000UL    /* align objs on a h/w cache lines */
#define SLAB_CACHE_DMA      0x00004000UL    /* use GFP_DMA memory */
#define SLAB_MUST_HWCACHE_ALIGN 0x00008000UL    /* force alignment */

/* flags passed to a constructor func */
#define SLAB_CTOR_CONSTRUCTOR   0x001UL     /* if not set, then deconstructor */
#define SLAB_CTOR_ATOMIC    0x002UL     /* tell constructor it can't sleep */
#define SLAB_CTOR_VERIFY    0x004UL     /* tell constructor it's a verify call */

/* prototypes */
extern void kmem_cache_init(void);
extern void kmem_cache_sizes_init(void);

extern kmem_cache_t *kmem_find_general_cachep(size_t, int gfpflags);
extern kmem_cache_t *kmem_cache_create(const char *, size_t, size_t, unsigned long,
                       void (*)(void *, kmem_cache_t *, unsigned long),
                       void (*)(void *, kmem_cache_t *, unsigned long));
extern int kmem_cache_destroy(kmem_cache_t *);
extern int kmem_cache_shrink(kmem_cache_t *);
extern void *kmem_cache_alloc(kmem_cache_t *, int);
extern void kmem_cache_free(kmem_cache_t *, void *);
extern unsigned int kmem_cache_size(kmem_cache_t *);

extern void *kmalloc(size_t, int);
extern void kfree(const void *);

//extern int FASTCALL(kmem_cache_reap(int));

/* System wide caches */
extern kmem_cache_t *vm_area_cachep;
extern kmem_cache_t *mm_cachep;
extern kmem_cache_t *names_cachep;
extern kmem_cache_t *files_cachep;
extern kmem_cache_t *filp_cachep;
extern kmem_cache_t *dquot_cachep;
extern kmem_cache_t *bh_cachep;
extern kmem_cache_t *fs_cachep;
extern kmem_cache_t *sigact_cachep;

#endif /* slab */



/*
 *  Berkeley style UIO structures   -   Alan Cox 1994.
 *
 *      This program is free software; you can redistribute it and/or
 *      modify it under the terms of the GNU General Public License
 *      as published by the Free Software Foundation; either version
 *      2 of the License, or (at your option) any later version.
 */


/* A word of warning: Our uio structure will clash with the C library one (which is now obsolete). Remove the C
   library one from sys/uio.h if you have a very old library set */

struct iovec
{
    void *iov_base;     /* BSD uses caddr_t (1003.1g requires void *) */
    __kernel_size_t iov_len; /* Must be size_t (1003.1g) */
};

/*
 *  UIO_MAXIOV shall be at least 16 1003.1g (5.4.1.1)
 */

#define UIO_FASTIOV 8
#define UIO_MAXIOV  1024
#if 0
#define UIO_MAXIOV  16  /* Maximum iovec's in one operation
                   16 matches BSD */
                                /* Beg pardon: BSD has 1024 --ANK */
#endif



/*
 * In Linux 2.4, static timers have been removed from the kernel.
 * Timers may be dynamically created and destroyed, and should be initialized
 * by a call to init_timer() upon creation.
 *
 * The "data" field enables use of a common timeout function for several
 * timeouts. You can use this field to distinguish between the different
 * invocations.
 */
struct timer_list {
    struct list_head list;
    unsigned long expires;
    unsigned long data;
    void (*function)(unsigned long);
};



struct timeval {
  unsigned long tv_sec;
  unsigned long tv_usec;
//  time_t      tv_sec;     /* seconds */
//  suseconds_t tv_usec;    /* microseconds */
};







#if 1 /* poll */

struct file;

struct poll_table_page;

typedef struct poll_table_struct {
    int error;
    struct poll_table_page * table;
} poll_table;

extern void __pollwait(struct file * filp, wait_queue_head_t * wait_address, poll_table *p);

static inline void poll_wait(struct file * filp, wait_queue_head_t * wait_address, poll_table *p)
{
    if (p && wait_address)
        __pollwait(filp, wait_address, p);
}

static inline void poll_initwait(poll_table* pt)
{
    pt->error = 0;
    pt->table = NULL;
}
extern void poll_freewait(poll_table* pt);


/*
 * Scalable version of the fd_set.
 */

typedef struct {
    unsigned long *in, *out, *ex;
    unsigned long *res_in, *res_out, *res_ex;
} fd_set_bits;

/*
 * How many longwords for "nr" bits?
 */
#define FDS_BITPERLONG  (8*sizeof(long))
#define FDS_LONGS(nr)   (((nr)+FDS_BITPERLONG-1)/FDS_BITPERLONG)
#define FDS_BYTES(nr)   (FDS_LONGS(nr)*sizeof(long))

/*
 * We do a VERIFY_WRITE here even though we are only reading this time:
 * we'll write to it eventually..
 *
 * Use "unsigned long" accesses to let user-mode fd_set's be long-aligned.
 */
static inline
int get_fd_set(unsigned long nr, void *ufdset, unsigned long *fdset)
{
#if 0
    nr = FDS_BYTES(nr);
    if (ufdset) {
        int error;
        error = verify_area(VERIFY_WRITE, ufdset, nr);
        if (!error && __copy_from_user(fdset, ufdset, nr))
            error = -EFAULT;
        return error;
    }
    memset(fdset, 0, nr);
    return 0;
#else
    return 0;
#endif
}

static inline
void set_fd_set(unsigned long nr, void *ufdset, unsigned long *fdset)
{
#if 0
    if (ufdset)
        __copy_to_user(ufdset, fdset, FDS_BYTES(nr));
#endif
}

static inline
void zero_fd_set(unsigned long nr, unsigned long *fdset)
{
#if 0
    memset(fdset, 0, FDS_BYTES(nr));
#endif
}

extern int do_select(int n, fd_set_bits *fds, long *timeout);

#endif /* poll */



typedef struct
{
  int x;
} read_descriptor_t;





#if 1 /* poll */

/* These are specified by iBCS2 */
#define POLLIN      0x0001
#define POLLPRI     0x0002
#define POLLOUT     0x0004
#define POLLERR     0x0008
#define POLLHUP     0x0010
#define POLLNVAL    0x0020

/* The rest seem to be more-or-less nonstandard. Check them! */
#define POLLRDNORM  0x0040
#define POLLRDBAND  0x0080
#define POLLWRNORM  0x0100
#define POLLWRBAND  0x0200
#define POLLMSG     0x0400

struct pollfd {
    int fd;
    short events;
    short revents;
};

#endif /* poll */