summaryrefslogtreecommitdiffstats
path: root/compat/opensolaris/lib/libumem/umem.c
diff options
context:
space:
mode:
Diffstat (limited to 'compat/opensolaris/lib/libumem/umem.c')
-rw-r--r--compat/opensolaris/lib/libumem/umem.c167
1 files changed, 167 insertions, 0 deletions
diff --git a/compat/opensolaris/lib/libumem/umem.c b/compat/opensolaris/lib/libumem/umem.c
new file mode 100644
index 0000000..e9662ce
--- /dev/null
+++ b/compat/opensolaris/lib/libumem/umem.c
@@ -0,0 +1,167 @@
+/*
+ * CDDL HEADER START
+ *
+ * The contents of this file are subject to the terms of the
+ * Common Development and Distribution License (the "License").
+ * You may not use this file except in compliance with the License.
+ *
+ * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
+ * or http://www.opensolaris.org/os/licensing.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ *
+ * When distributing Covered Code, include this CDDL HEADER in each
+ * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
+ * If applicable, add the following below this CDDL HEADER, with the
+ * fields enclosed by brackets "[]" replaced with your own identifying
+ * information: Portions Copyright [yyyy] [name of copyright owner]
+ *
+ * CDDL HEADER END
+ */
+/*
+ * Copyright 2006 Ricardo Correia. All rights reserved.
+ * Use is subject to license terms.
+ */
+
+#include <umem.h>
+#include <stdlib.h>
+#include <assert.h>
+
+static umem_nofail_callback_t *nofail_cb = NULL;
+
+struct umem_cache {
+ umem_constructor_t *constructor;
+ umem_destructor_t *destructor;
+ void *callback_data;
+ size_t bufsize;
+};
+
+/*
+ * Simple stub for umem_alloc(). The callback isn't expected to return.
+ */
+void *umem_alloc(size_t size, int flags)
+{
+ assert(flags == UMEM_DEFAULT || flags == UMEM_NOFAIL);
+
+ if(size == 0)
+ return NULL;
+
+ void *ret = malloc(size);
+ if(ret == NULL) {
+ if(!(flags & UMEM_NOFAIL))
+ return NULL;
+
+ if(nofail_cb != NULL)
+ nofail_cb();
+ abort();
+ }
+
+ return ret;
+}
+
+/*
+ * Simple stub for umem_zalloc().
+ */
+void *umem_zalloc(size_t size, int flags)
+{
+ assert(flags == UMEM_DEFAULT || flags == UMEM_NOFAIL);
+
+ if(size == 0)
+ return NULL;
+
+ void *ret = calloc(1, size);
+ if(ret == NULL) {
+ if(!(flags & UMEM_NOFAIL))
+ return NULL;
+
+ if(nofail_cb != NULL)
+ nofail_cb();
+ abort();
+ }
+
+ return ret;
+}
+
+/*
+ * Simple stub for umem_free().
+ */
+void umem_free(void *buf, size_t size)
+{
+ free(buf);
+}
+
+/*
+ * Simple stub for umem_nofail_callback().
+ */
+void umem_nofail_callback(umem_nofail_callback_t *callback)
+{
+ nofail_cb = callback;
+}
+
+/*
+ * Simple stub for umem_cache_create().
+ */
+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)
+{
+ assert(source == NULL);
+
+ umem_cache_t *cache = malloc(sizeof(umem_cache_t));
+ if(cache == NULL)
+ return NULL;
+
+ cache->constructor = constructor;
+ cache->destructor = destructor;
+ cache->callback_data = callback_data;
+ cache->bufsize = bufsize;
+
+ return cache;
+}
+
+/*
+ * Simple stub for umem_cache_alloc(). The nofail callback isn't expected to return.
+ */
+void *umem_cache_alloc(umem_cache_t *cache, int flags)
+{
+ void *buf = malloc(cache->bufsize);
+ if(buf == NULL) {
+ if(!(flags & UMEM_NOFAIL))
+ return NULL;
+
+ if(nofail_cb != NULL)
+ nofail_cb();
+ abort();
+ }
+
+ if(cache->constructor != NULL) {
+ if(cache->constructor(buf, cache->callback_data, flags) != 0) {
+ free(buf);
+ if(!(flags & UMEM_NOFAIL))
+ return NULL;
+
+ if(nofail_cb != NULL)
+ nofail_cb();
+ abort();
+ }
+ }
+
+ return buf;
+}
+
+/*
+ * Simple stub for umem_cache_free().
+ */
+void umem_cache_free(umem_cache_t *cache, void *buffer)
+{
+ if(cache->destructor != NULL)
+ cache->destructor(buffer, cache->callback_data);
+
+ free(buffer);
+}
+
+/*
+ * Simple stub for umem_cache_destroy().
+ */
+void umem_cache_destroy(umem_cache_t *cache)
+{
+ free(cache);
+}
OpenPOWER on IntegriCloud