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94 lines
3.7 KiB
C
94 lines
3.7 KiB
C
/* node.c -- binary trees of address ranges
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*
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* $Id$
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* Copyright (C) 2016 Ravenbrook Limited. See end of file for license.
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*/
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#ifndef node_h
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#define node_h
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#include "mpmtypes.h"
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#include "range.h"
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#include "tree.h"
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#define NodeTree(node) (&(node)->treeStruct)
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#define NodeRange(node) (&(node)->rangeStruct)
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#define NodeOfTree(tree) PARENT(NodeStruct, treeStruct, tree)
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#define NodeOfRange(range) PARENT(NodeStruct, rangeStruct, range)
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#define NodeBase(block) RangeBase(NodeRange(block))
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#define NodeLimit(block) RangeLimit(NodeRange(block))
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#define NodeSetBase(block, addr) RangeSetBase(NodeRange(block), addr)
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#define NodeSetLimit(block, addr) RangeSetLimit(NodeRange(block), addr)
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#define NodeSize(block) RangeSize(NodeRange(block))
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extern void NodeInit(Node node, Addr base, Addr limit);
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extern void NodeInitFromRange(Node node, Range range);
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extern Bool NodeCheck(Node node);
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extern void NodeFinish(Node node);
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/* Functions for nodes in trees
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*
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* We pass the node base directly as a TreeKey (void *) assuming that
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* Addr can be encoded, and possibly breaking <design/type/#addr.use>.
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* On an exotic platform where this isn't true, pass the address of
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* base: that is, add an &.
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*/
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#define NodeKeyOfBaseVar(baseVar) ((TreeKey)(baseVar))
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#define NodeBaseOfKey(key) ((Addr)(key))
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extern Compare NodeCompare(Tree tree, TreeKey key);
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extern TreeKey NodeKey(Tree tree);
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/* NodeStruct -- address range in a tree */
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typedef struct NodeStruct {
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TreeStruct treeStruct;
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RangeStruct rangeStruct;
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} NodeStruct;
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#endif /* node_h */
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/* C. COPYRIGHT AND LICENSE
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*
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* Copyright (C) 2016 Ravenbrook Limited <http://www.ravenbrook.com/>.
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* All rights reserved. This is an open source license. Contact
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* Ravenbrook for commercial licensing options.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* 3. Redistributions in any form must be accompanied by information on how
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* to obtain complete source code for this software and any accompanying
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* software that uses this software. The source code must either be
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* included in the distribution or be available for no more than the cost
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* of distribution plus a nominal fee, and must be freely redistributable
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* under reasonable conditions. For an executable file, complete source
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* code means the source code for all modules it contains. It does not
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* include source code for modules or files that typically accompany the
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* major components of the operating system on which the executable file
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* runs.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
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* IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
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* PURPOSE, OR NON-INFRINGEMENT, ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT HOLDERS AND CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
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* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
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* ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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