2 * Copyright (c) 2005 Jeffrey M. Hsu. All rights reserved.
4 * This code is derived from software contributed to The DragonFly Project
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 * 3. Neither the name of The DragonFly Project nor the names of its
16 * contributors may be used to endorse or promote products derived
17 * from this software without specific, prior written permission.
19 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
21 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
22 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
23 * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
24 * INCIDENTAL, SPECIAL, EXEMPLARY OR CONSEQUENTIAL DAMAGES (INCLUDING,
25 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
26 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
27 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
28 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
29 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
32 * $DragonFly: src/sys/sys/objcache.h,v 1.5 2006/05/21 03:43:47 dillon Exp $
38 #if defined(_KERNEL) || defined(_KERNEL_STRUCTURES)
41 #include <sys/types.h>
43 #ifndef _SYS_MALLOC_H_
44 #include <sys/malloc.h>
47 #define OC_MFLAGS 0x0000ffff /* same as malloc flags */
49 typedef boolean_t (objcache_ctor_fn)(void *obj, void *private, int ocflags);
50 typedef void (objcache_dtor_fn)(void *obj, void *private);
53 extern objcache_dtor_fn null_dtor;
57 * Underlying allocator.
59 typedef void *(objcache_alloc_fn)(void *allocator_args, int ocflags);
60 typedef void (objcache_free_fn)(void *obj, void *allocator_args);
67 *objcache_create(char *name, int cluster_limit, int mag_capacity,
68 objcache_ctor_fn *ctor, objcache_dtor_fn *dtor,
70 objcache_alloc_fn *alloc, objcache_free_fn *free,
71 void *allocator_args);
72 void *objcache_get(struct objcache *oc, int ocflags);
73 void objcache_put(struct objcache *oc, void *obj);
74 void objcache_dtor(struct objcache *oc, void *obj);
75 void objcache_populate_linear(struct objcache *oc, void *elts, int nelts,
77 boolean_t objcache_reclaimlist(struct objcache *oc[], int nlist, int ocflags);
78 void objcache_destroy(struct objcache *oc);
83 * Common underlying allocators.
85 struct objcache_malloc_args {
92 void *objcache_malloc_alloc(void *allocator_args, int ocflags);
93 void objcache_malloc_free(void *obj, void *allocator_args);
95 void *objcache_nop_alloc(void *allocator_args, int ocflags);
96 void objcache_nop_free(void *obj, void *allocator_args);
100 #endif /* _KERNEL || _KERNEL_STRUCTURES */
101 #endif /* _SYS_OBJCACHE_H_ */