debuggers.hg

annotate xen/include/xen/slab.h @ 3658:0ef6e8e6e85d

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bitkeeper revision 1.1159.212.71 (4200f0afX_JumfbEHQex6TdFENULMQ)

Merge labyrinth.cl.cam.ac.uk:/auto/groups/xeno-xenod/BK/xen-unstable.bk
into labyrinth.cl.cam.ac.uk:/auto/groups/xeno/users/iap10/xeno-clone/xen-unstable.bk
author iap10@labyrinth.cl.cam.ac.uk
date Wed Feb 02 15:24:31 2005 +0000 (2005-02-02)
parents 610068179f96 552dd1f1c64c
children 8472fafee3cf
rev   line source
kaf24@1248 1 /*
kaf24@1248 2 * Written by Mark Hemment, 1996.
kaf24@1248 3 * (markhe@nextd.demon.co.uk)
kaf24@1248 4 */
kaf24@1248 5
kaf24@1526 6 #ifndef __SLAB_H__
kaf24@1592 7 #define __SLAB_H__
kaf24@1248 8
kaf24@3515 9 #include <xen/config.h>
kaf24@3515 10
kaf24@3515 11 #ifdef __ARCH_HAS_SLAB_ALLOCATOR
kaf24@3515 12
kaf24@3515 13 #include <asm/slab.h>
kaf24@3515 14
kaf24@3515 15 #else
iap10@3654 16
iap10@3654 17 typedef struct xmem_cache_s xmem_cache_t;
iap10@3654 18
kaf24@1526 19 #include <xen/mm.h>
kaf24@1526 20 #include <xen/cache.h>
iap10@3650 21 #include <xen/types.h>
kaf24@1248 22
iap10@3654 23 /* Flags to pass to xmem_cache_create(). */
iap10@3654 24 /* NB. The first 3 are only valid when built with SLAB_DEBUG_SUPPORT. */
iap10@3654 25 #define SLAB_DEBUG_INITIAL 0x00000200UL /* Call constructor */
iap10@3654 26 #define SLAB_RED_ZONE 0x00000400UL /* Red zone objs in a cache */
iap10@3654 27 #define SLAB_POISON 0x00000800UL /* Poison objects */
iap10@3654 28 #define SLAB_NO_REAP 0x00001000UL /* never reap from the cache */
iap10@3654 29 #define SLAB_HWCACHE_ALIGN 0x00002000UL /* align obj on a cache line */
iap10@3654 30
iap10@3654 31 /* Flags passed to a constructor function. */
iap10@3654 32 #define SLAB_CTOR_CONSTRUCTOR 0x001UL /* if not set, then deconstructor */
iap10@3654 33 #define SLAB_CTOR_ATOMIC 0x002UL /* tell cons. it can't sleep */
iap10@3654 34 #define SLAB_CTOR_VERIFY 0x004UL /* tell cons. it's a verify call */
iap10@3654 35
iap10@3654 36 extern void xmem_cache_init(void);
iap10@3654 37 extern void xmem_cache_sizes_init(unsigned long);
iap10@3654 38
iap10@3654 39 extern xmem_cache_t *xmem_find_general_cachep(size_t);
iap10@3654 40 extern xmem_cache_t *xmem_cache_create(
iap10@3654 41 const char *, size_t, size_t, unsigned long,
iap10@3654 42 void (*)(void *, xmem_cache_t *, unsigned long),
iap10@3654 43 void (*)(void *, xmem_cache_t *, unsigned long));
iap10@3654 44 extern int xmem_cache_destroy(xmem_cache_t *);
iap10@3654 45 extern int xmem_cache_shrink(xmem_cache_t *);
iap10@3654 46 extern void *xmem_cache_alloc(xmem_cache_t *);
iap10@3654 47 extern void xmem_cache_free(xmem_cache_t *, void *);
iap10@3654 48
iap10@3654 49 extern void *_xmalloc(size_t);
iap10@3654 50 extern void xfree(const void *);
iap10@3654 51
iap10@3654 52 extern int xmem_cache_reap(void);
iap10@3654 53
iap10@3654 54 extern void dump_slabinfo();
kaf24@1248 55
iap10@3650 56 /* Nicely typesafe for you. */
iap10@3652 57 #define xmalloc(type) ((type *)_xmalloc(sizeof(type)))
iap10@3652 58 #define xmalloc_array(type, num) ((type *)_xmalloc_array(sizeof(type), (num)))
iap10@3650 59
iap10@3652 60 static inline void *_xmalloc_array(size_t size, size_t num)
iap10@3650 61 {
iap10@3650 62 /* Check for overflow. */
iap10@3650 63 if (size && num > UINT_MAX / size)
iap10@3650 64 return NULL;
iap10@3652 65 return _xmalloc(size * num);
iap10@3650 66 }
kaf24@3515 67 #endif /* __ARCH_HAS_SLAB_ALLOCATOR */
kaf24@3515 68
kaf24@1592 69 #endif /* __SLAB_H__ */