1f0a75d27SPawel Jakub Dawidek /*
2f0a75d27SPawel Jakub Dawidek * CDDL HEADER START
3f0a75d27SPawel Jakub Dawidek *
4f0a75d27SPawel Jakub Dawidek * The contents of this file are subject to the terms of the
5f0a75d27SPawel Jakub Dawidek * Common Development and Distribution License (the "License").
6f0a75d27SPawel Jakub Dawidek * You may not use this file except in compliance with the License.
7f0a75d27SPawel Jakub Dawidek *
8f0a75d27SPawel Jakub Dawidek * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9f0a75d27SPawel Jakub Dawidek * or http://www.opensolaris.org/os/licensing.
10f0a75d27SPawel Jakub Dawidek * See the License for the specific language governing permissions
11f0a75d27SPawel Jakub Dawidek * and limitations under the License.
12f0a75d27SPawel Jakub Dawidek *
13f0a75d27SPawel Jakub Dawidek * When distributing Covered Code, include this CDDL HEADER in each
14f0a75d27SPawel Jakub Dawidek * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15f0a75d27SPawel Jakub Dawidek * If applicable, add the following below this CDDL HEADER, with the
16f0a75d27SPawel Jakub Dawidek * fields enclosed by brackets "[]" replaced with your own identifying
17f0a75d27SPawel Jakub Dawidek * information: Portions Copyright [yyyy] [name of copyright owner]
18f0a75d27SPawel Jakub Dawidek *
19f0a75d27SPawel Jakub Dawidek * CDDL HEADER END
20f0a75d27SPawel Jakub Dawidek */
21f0a75d27SPawel Jakub Dawidek /*
22f0a75d27SPawel Jakub Dawidek * Copyright 2006 Ricardo Correia. All rights reserved.
23f0a75d27SPawel Jakub Dawidek * Use is subject to license terms.
24f0a75d27SPawel Jakub Dawidek */
25f0a75d27SPawel Jakub Dawidek
26f0a75d27SPawel Jakub Dawidek #include <umem.h>
27f0a75d27SPawel Jakub Dawidek #include <stdlib.h>
28f0a75d27SPawel Jakub Dawidek #include <assert.h>
29f0a75d27SPawel Jakub Dawidek
30f0a75d27SPawel Jakub Dawidek static umem_nofail_callback_t *nofail_cb = NULL;
31f0a75d27SPawel Jakub Dawidek
32f0a75d27SPawel Jakub Dawidek struct umem_cache {
33f0a75d27SPawel Jakub Dawidek umem_constructor_t *constructor;
34f0a75d27SPawel Jakub Dawidek umem_destructor_t *destructor;
35f0a75d27SPawel Jakub Dawidek void *callback_data;
36f0a75d27SPawel Jakub Dawidek size_t bufsize;
37f0a75d27SPawel Jakub Dawidek };
38f0a75d27SPawel Jakub Dawidek
39f0a75d27SPawel Jakub Dawidek /*
40f0a75d27SPawel Jakub Dawidek * Simple stub for umem_alloc(). The callback isn't expected to return.
41f0a75d27SPawel Jakub Dawidek */
umem_alloc(size_t size,int flags)42f0a75d27SPawel Jakub Dawidek void *umem_alloc(size_t size, int flags)
43f0a75d27SPawel Jakub Dawidek {
44f0a75d27SPawel Jakub Dawidek assert(flags == UMEM_DEFAULT || flags == UMEM_NOFAIL);
45f0a75d27SPawel Jakub Dawidek
46f0a75d27SPawel Jakub Dawidek if(size == 0)
47f0a75d27SPawel Jakub Dawidek return NULL;
48f0a75d27SPawel Jakub Dawidek
49f0a75d27SPawel Jakub Dawidek void *ret = malloc(size);
50f0a75d27SPawel Jakub Dawidek if(ret == NULL) {
51f0a75d27SPawel Jakub Dawidek if(!(flags & UMEM_NOFAIL))
52f0a75d27SPawel Jakub Dawidek return NULL;
53f0a75d27SPawel Jakub Dawidek
54f0a75d27SPawel Jakub Dawidek if(nofail_cb != NULL)
55f0a75d27SPawel Jakub Dawidek nofail_cb();
56f0a75d27SPawel Jakub Dawidek abort();
57f0a75d27SPawel Jakub Dawidek }
58f0a75d27SPawel Jakub Dawidek
59f0a75d27SPawel Jakub Dawidek return ret;
60f0a75d27SPawel Jakub Dawidek }
61f0a75d27SPawel Jakub Dawidek
62f0a75d27SPawel Jakub Dawidek /*
63f0a75d27SPawel Jakub Dawidek * Simple stub for umem_zalloc().
64f0a75d27SPawel Jakub Dawidek */
umem_zalloc(size_t size,int flags)65f0a75d27SPawel Jakub Dawidek void *umem_zalloc(size_t size, int flags)
66f0a75d27SPawel Jakub Dawidek {
67f0a75d27SPawel Jakub Dawidek assert(flags == UMEM_DEFAULT || flags == UMEM_NOFAIL);
68f0a75d27SPawel Jakub Dawidek
69f0a75d27SPawel Jakub Dawidek if(size == 0)
70f0a75d27SPawel Jakub Dawidek return NULL;
71f0a75d27SPawel Jakub Dawidek
72f0a75d27SPawel Jakub Dawidek void *ret = calloc(1, size);
73f0a75d27SPawel Jakub Dawidek if(ret == NULL) {
74f0a75d27SPawel Jakub Dawidek if(!(flags & UMEM_NOFAIL))
75f0a75d27SPawel Jakub Dawidek return NULL;
76f0a75d27SPawel Jakub Dawidek
77f0a75d27SPawel Jakub Dawidek if(nofail_cb != NULL)
78f0a75d27SPawel Jakub Dawidek nofail_cb();
79f0a75d27SPawel Jakub Dawidek abort();
80f0a75d27SPawel Jakub Dawidek }
81f0a75d27SPawel Jakub Dawidek
82f0a75d27SPawel Jakub Dawidek return ret;
83f0a75d27SPawel Jakub Dawidek }
84f0a75d27SPawel Jakub Dawidek
85f0a75d27SPawel Jakub Dawidek /*
86f0a75d27SPawel Jakub Dawidek * Simple stub for umem_free().
87f0a75d27SPawel Jakub Dawidek */
umem_free(void * buf,size_t size)88f0a75d27SPawel Jakub Dawidek void umem_free(void *buf, size_t size)
89f0a75d27SPawel Jakub Dawidek {
90f0a75d27SPawel Jakub Dawidek free(buf);
91f0a75d27SPawel Jakub Dawidek }
92f0a75d27SPawel Jakub Dawidek
93f0a75d27SPawel Jakub Dawidek /*
94f0a75d27SPawel Jakub Dawidek * Simple stub for umem_nofail_callback().
95f0a75d27SPawel Jakub Dawidek */
umem_nofail_callback(umem_nofail_callback_t * callback)96f0a75d27SPawel Jakub Dawidek void umem_nofail_callback(umem_nofail_callback_t *callback)
97f0a75d27SPawel Jakub Dawidek {
98f0a75d27SPawel Jakub Dawidek nofail_cb = callback;
99f0a75d27SPawel Jakub Dawidek }
100f0a75d27SPawel Jakub Dawidek
101f0a75d27SPawel Jakub Dawidek /*
102f0a75d27SPawel Jakub Dawidek * Simple stub for umem_cache_create().
103f0a75d27SPawel Jakub Dawidek */
umem_cache_create(char * debug_name,size_t bufsize,size_t align,umem_constructor_t * constructor,umem_destructor_t * destructor,umem_reclaim_t * reclaim,void * callback_data,void * source,int cflags)104f0a75d27SPawel Jakub Dawidek umem_cache_t *umem_cache_create(char *debug_name, size_t bufsize, size_t align, umem_constructor_t *constructor, umem_destructor_t *destructor, umem_reclaim_t *reclaim, void *callback_data, void *source, int cflags)
105f0a75d27SPawel Jakub Dawidek {
106f0a75d27SPawel Jakub Dawidek assert(source == NULL);
107f0a75d27SPawel Jakub Dawidek
108f0a75d27SPawel Jakub Dawidek umem_cache_t *cache = malloc(sizeof(umem_cache_t));
109f0a75d27SPawel Jakub Dawidek if(cache == NULL)
110f0a75d27SPawel Jakub Dawidek return NULL;
111f0a75d27SPawel Jakub Dawidek
112f0a75d27SPawel Jakub Dawidek cache->constructor = constructor;
113f0a75d27SPawel Jakub Dawidek cache->destructor = destructor;
114f0a75d27SPawel Jakub Dawidek cache->callback_data = callback_data;
115f0a75d27SPawel Jakub Dawidek cache->bufsize = bufsize;
116f0a75d27SPawel Jakub Dawidek
117f0a75d27SPawel Jakub Dawidek return cache;
118f0a75d27SPawel Jakub Dawidek }
119f0a75d27SPawel Jakub Dawidek
120f0a75d27SPawel Jakub Dawidek /*
121f0a75d27SPawel Jakub Dawidek * Simple stub for umem_cache_alloc(). The nofail callback isn't expected to return.
122f0a75d27SPawel Jakub Dawidek */
umem_cache_alloc(umem_cache_t * cache,int flags)123f0a75d27SPawel Jakub Dawidek void *umem_cache_alloc(umem_cache_t *cache, int flags)
124f0a75d27SPawel Jakub Dawidek {
125f0a75d27SPawel Jakub Dawidek void *buf = malloc(cache->bufsize);
126f0a75d27SPawel Jakub Dawidek if(buf == NULL) {
127f0a75d27SPawel Jakub Dawidek if(!(flags & UMEM_NOFAIL))
128f0a75d27SPawel Jakub Dawidek return NULL;
129f0a75d27SPawel Jakub Dawidek
130f0a75d27SPawel Jakub Dawidek if(nofail_cb != NULL)
131f0a75d27SPawel Jakub Dawidek nofail_cb();
132f0a75d27SPawel Jakub Dawidek abort();
133f0a75d27SPawel Jakub Dawidek }
134f0a75d27SPawel Jakub Dawidek
135f0a75d27SPawel Jakub Dawidek if(cache->constructor != NULL) {
136f0a75d27SPawel Jakub Dawidek if(cache->constructor(buf, cache->callback_data, flags) != 0) {
137f0a75d27SPawel Jakub Dawidek free(buf);
138f0a75d27SPawel Jakub Dawidek if(!(flags & UMEM_NOFAIL))
139f0a75d27SPawel Jakub Dawidek return NULL;
140f0a75d27SPawel Jakub Dawidek
141f0a75d27SPawel Jakub Dawidek if(nofail_cb != NULL)
142f0a75d27SPawel Jakub Dawidek nofail_cb();
143f0a75d27SPawel Jakub Dawidek abort();
144f0a75d27SPawel Jakub Dawidek }
145f0a75d27SPawel Jakub Dawidek }
146f0a75d27SPawel Jakub Dawidek
147f0a75d27SPawel Jakub Dawidek return buf;
148f0a75d27SPawel Jakub Dawidek }
149f0a75d27SPawel Jakub Dawidek
150f0a75d27SPawel Jakub Dawidek /*
151f0a75d27SPawel Jakub Dawidek * Simple stub for umem_cache_free().
152f0a75d27SPawel Jakub Dawidek */
umem_cache_free(umem_cache_t * cache,void * buffer)153f0a75d27SPawel Jakub Dawidek void umem_cache_free(umem_cache_t *cache, void *buffer)
154f0a75d27SPawel Jakub Dawidek {
155f0a75d27SPawel Jakub Dawidek if(cache->destructor != NULL)
156f0a75d27SPawel Jakub Dawidek cache->destructor(buffer, cache->callback_data);
157f0a75d27SPawel Jakub Dawidek
158f0a75d27SPawel Jakub Dawidek free(buffer);
159f0a75d27SPawel Jakub Dawidek }
160f0a75d27SPawel Jakub Dawidek
161f0a75d27SPawel Jakub Dawidek /*
162f0a75d27SPawel Jakub Dawidek * Simple stub for umem_cache_destroy().
163f0a75d27SPawel Jakub Dawidek */
umem_cache_destroy(umem_cache_t * cache)164f0a75d27SPawel Jakub Dawidek void umem_cache_destroy(umem_cache_t *cache)
165f0a75d27SPawel Jakub Dawidek {
166f0a75d27SPawel Jakub Dawidek free(cache);
167f0a75d27SPawel Jakub Dawidek }
168