0713e232b7712cd27d99e1e935ebb8d5de61c57dGeorge Wilson * CDDL HEADER START
0713e232b7712cd27d99e1e935ebb8d5de61c57dGeorge Wilson * The contents of this file are subject to the terms of the
0713e232b7712cd27d99e1e935ebb8d5de61c57dGeorge Wilson * Common Development and Distribution License (the "License").
0713e232b7712cd27d99e1e935ebb8d5de61c57dGeorge Wilson * You may not use this file except in compliance with the License.
0713e232b7712cd27d99e1e935ebb8d5de61c57dGeorge Wilson * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
0713e232b7712cd27d99e1e935ebb8d5de61c57dGeorge Wilson * See the License for the specific language governing permissions
0713e232b7712cd27d99e1e935ebb8d5de61c57dGeorge Wilson * and limitations under the License.
0713e232b7712cd27d99e1e935ebb8d5de61c57dGeorge Wilson * When distributing Covered Code, include this CDDL HEADER in each
0713e232b7712cd27d99e1e935ebb8d5de61c57dGeorge Wilson * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
0713e232b7712cd27d99e1e935ebb8d5de61c57dGeorge Wilson * If applicable, add the following below this CDDL HEADER, with the
0713e232b7712cd27d99e1e935ebb8d5de61c57dGeorge Wilson * fields enclosed by brackets "[]" replaced with your own identifying
0713e232b7712cd27d99e1e935ebb8d5de61c57dGeorge Wilson * information: Portions Copyright [yyyy] [name of copyright owner]
0713e232b7712cd27d99e1e935ebb8d5de61c57dGeorge Wilson * CDDL HEADER END
0713e232b7712cd27d99e1e935ebb8d5de61c57dGeorge Wilson * Copyright 2009 Sun Microsystems, Inc. All rights reserved.
0713e232b7712cd27d99e1e935ebb8d5de61c57dGeorge Wilson * Use is subject to license terms.
bf16b11e8deb633dd6c4296d46e92399d1582df4Matthew Ahrens * Copyright (c) 2013, 2014 by Delphix. All rights reserved.
0713e232b7712cd27d99e1e935ebb8d5de61c57dGeorge Wilsontypedef struct range_tree_ops range_tree_ops_t;
0713e232b7712cd27d99e1e935ebb8d5de61c57dGeorge Wilson avl_tree_t rt_root; /* offset-ordered segment AVL tree */
0713e232b7712cd27d99e1e935ebb8d5de61c57dGeorge Wilson uint64_t rt_space; /* sum of all segments in the map */
0713e232b7712cd27d99e1e935ebb8d5de61c57dGeorge Wilson * The rt_histogram maintains a histogram of ranges. Each bucket,
0713e232b7712cd27d99e1e935ebb8d5de61c57dGeorge Wilson * rt_histogram[i], contains the number of ranges whose size is:
0713e232b7712cd27d99e1e935ebb8d5de61c57dGeorge Wilson * 2^i <= size of range in bytes < 2^(i+1)
0713e232b7712cd27d99e1e935ebb8d5de61c57dGeorge Wilson uint64_t rt_histogram[RANGE_TREE_HISTOGRAM_SIZE];
0713e232b7712cd27d99e1e935ebb8d5de61c57dGeorge Wilson kmutex_t *rt_lock; /* pointer to lock that protects map */
0713e232b7712cd27d99e1e935ebb8d5de61c57dGeorge Wilson avl_node_t rs_pp_node; /* AVL picker-private node */
0713e232b7712cd27d99e1e935ebb8d5de61c57dGeorge Wilson uint64_t rs_start; /* starting offset of this segment */
0713e232b7712cd27d99e1e935ebb8d5de61c57dGeorge Wilson uint64_t rs_end; /* ending offset (non-inclusive) */
0713e232b7712cd27d99e1e935ebb8d5de61c57dGeorge Wilson void (*rtop_create)(range_tree_t *rt, void *arg);
0713e232b7712cd27d99e1e935ebb8d5de61c57dGeorge Wilson void (*rtop_destroy)(range_tree_t *rt, void *arg);
0713e232b7712cd27d99e1e935ebb8d5de61c57dGeorge Wilson void (*rtop_add)(range_tree_t *rt, range_seg_t *rs, void *arg);
0713e232b7712cd27d99e1e935ebb8d5de61c57dGeorge Wilson void (*rtop_remove)(range_tree_t *rt, range_seg_t *rs, void *arg);
0713e232b7712cd27d99e1e935ebb8d5de61c57dGeorge Wilson void (*rtop_vacate)(range_tree_t *rt, void *arg);
0713e232b7712cd27d99e1e935ebb8d5de61c57dGeorge Wilsontypedef void range_tree_func_t(void *arg, uint64_t start, uint64_t size);
0713e232b7712cd27d99e1e935ebb8d5de61c57dGeorge Wilsonrange_tree_t *range_tree_create(range_tree_ops_t *ops, void *arg, kmutex_t *lp);
0713e232b7712cd27d99e1e935ebb8d5de61c57dGeorge Wilsonboolean_t range_tree_contains(range_tree_t *rt, uint64_t start, uint64_t size);
0713e232b7712cd27d99e1e935ebb8d5de61c57dGeorge Wilsonvoid range_tree_verify(range_tree_t *rt, uint64_t start, uint64_t size);
0713e232b7712cd27d99e1e935ebb8d5de61c57dGeorge Wilsonvoid range_tree_swap(range_tree_t **rtsrc, range_tree_t **rtdst);
0713e232b7712cd27d99e1e935ebb8d5de61c57dGeorge Wilsonvoid range_tree_add(void *arg, uint64_t start, uint64_t size);
0713e232b7712cd27d99e1e935ebb8d5de61c57dGeorge Wilsonvoid range_tree_remove(void *arg, uint64_t start, uint64_t size);
bf16b11e8deb633dd6c4296d46e92399d1582df4Matthew Ahrensvoid range_tree_clear(range_tree_t *rt, uint64_t start, uint64_t size);
0713e232b7712cd27d99e1e935ebb8d5de61c57dGeorge Wilsonvoid range_tree_vacate(range_tree_t *rt, range_tree_func_t *func, void *arg);
0713e232b7712cd27d99e1e935ebb8d5de61c57dGeorge Wilsonvoid range_tree_walk(range_tree_t *rt, range_tree_func_t *func, void *arg);
0713e232b7712cd27d99e1e935ebb8d5de61c57dGeorge Wilson#endif /* _SYS_RANGE_TREE_H */