45 lines
1.2 KiB
C
Executable File
45 lines
1.2 KiB
C
Executable File
// SPDX-License-Identifier: LGPL-3.0-or-later
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/**
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* \file bgp/patricia.h
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*
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* PATRICIA trie implementation.
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*
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* \copyright The DoubleFourteen Code Forge (C) All Rights Reserved
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* \author Lorenzo Cogotti
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*/
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#ifndef DF_BGP_PATRICIA_H_
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#define DF_BGP_PATRICIA_H_
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#include "bgp/prefix.h"
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/// Opaque type, trie memory chunk block.
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typedef struct Patblock Patblock;
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/// Opaque type, concrete trie node.
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typedef union Patnode Patnode;
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/// PATRICIA trie.
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typedef struct {
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Afi afi; ///< AFI type
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unsigned nprefixes; ///< Prefixes count stored inside trie
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Patnode *head; ///< Trie root node
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Patblock *blocks; ///< PATRICIA memory blocks
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Patnode *freeBins[IPV6_SIZE / 4]; ///< Fast free bins
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} Patricia;
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RawPrefix *Pat_Insert(Patricia *trie, const RawPrefix *pfx);
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Boolean Pat_Remove(Patricia *trie, const RawPrefix *pfx);
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RawPrefix *Pat_SearchExact(const Patricia *trie, const RawPrefix *pfx);
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Boolean Pat_IsSubnetOf(const Patricia *trie, const RawPrefix *pfx);
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Boolean Pat_IsSupernetOf(const Patricia *trie, const RawPrefix *pfx);
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Boolean Pat_IsRelatedOf(const Patricia *trie, const RawPrefix *pfx);
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/// Reset `trie` and free all memory.
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void Pat_Clear(Patricia *trie);
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#endif
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