Please welcome ZFS - The last word in file systems.

ZFS file system was ported from OpenSolaris operating system. The code in under
CDDL license.

I'd like to thank all SUN developers that created this great piece of software.

Supported by:	Wheel LTD (http://www.wheel.pl/)
Supported by:	The FreeBSD Foundation (http://www.freebsdfoundation.org/)
Supported by:	Sentex (http://www.sentex.net/)

2 files changed, 252 insertions, 0 deletions

diff --git a/cddl/compat/opensolaris/lib/libumem/umem.c b/cddl/compat/opensolaris/lib/libumem/umem.c
new file mode 100644
index 000000000000..e9662ce3c1e8
--- /dev/null
+++ b/cddl/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);
+}
diff --git a/cddl/compat/opensolaris/lib/libumem/umem.h b/cddl/compat/opensolaris/lib/libumem/umem.h
new file mode 100644
index 000000000000..971cde36e1b2
--- /dev/null
+++ b/cddl/compat/opensolaris/lib/libumem/umem.h
@@ -0,0 +1,85 @@
+/*
+ * CDDL HEADER START
+ *
+ * The contents of this file are subject to the terms of the
+ * Common Development and Distribution License, Version 1.0 only
+ * (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 2004 Sun Microsystems, Inc.  All rights reserved.
+ * Use is subject to license terms.
+ */
+
+#ifndef _UMEM_H
+#define	_UMEM_H
+
+
+
+#include <sys/types.h>
+#include <stdlib.h>
+
+#ifdef	__cplusplus
+extern "C" {
+#endif
+
+#define	UMEM_DEFAULT	0x0000	/* normal -- may fail */
+#define	UMEM_NOFAIL	0x0100	/* Never fails -- may call exit(2) */
+
+#define	UMEM_FLAGS	0xffff	/* all settable umem flags */
+
+extern void *umem_alloc(size_t, int);
+extern void *umem_alloc_align(size_t, size_t, int);
+extern void *umem_zalloc(size_t, int);
+extern void umem_free(void *, size_t);
+extern void umem_free_align(void *, size_t);
+
+/*
+ * Flags for umem_cache_create()
+ */
+#define	UMC_NOTOUCH	0x00010000
+#define	UMC_NODEBUG	0x00020000
+#define	UMC_NOMAGAZINE	0x00040000
+#define	UMC_NOHASH	0x00080000
+
+struct umem_cache;		/* cache structure is opaque to umem clients */
+
+typedef struct umem_cache umem_cache_t;
+typedef int umem_constructor_t(void *, void *, int);
+typedef void umem_destructor_t(void *, void *);
+typedef void umem_reclaim_t(void *);
+
+typedef int umem_nofail_callback_t(void);
+#define	UMEM_CALLBACK_RETRY		0
+#define	UMEM_CALLBACK_EXIT(status)	(0x100 | ((status) & 0xFF))
+
+extern void umem_nofail_callback(umem_nofail_callback_t *);
+
+extern umem_cache_t *umem_cache_create(char *, size_t,
+    size_t, umem_constructor_t *, umem_destructor_t *, umem_reclaim_t *,
+    void *, void *, int);
+extern void umem_cache_destroy(umem_cache_t *);
+
+extern void *umem_cache_alloc(umem_cache_t *, int);
+extern void umem_cache_free(umem_cache_t *, void *);
+
+extern void umem_reap(void);
+
+#ifdef	__cplusplus
+}
+#endif
+
+#endif	/* _UMEM_H */