linux.h

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	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 initialisaton 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	/* Peform (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);


/*
 * Scaleable 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 */

#endif /* _LINUX_TYPES_H */