102 lines
2.4 KiB
C
102 lines
2.4 KiB
C
// Copyright 2023 Dexter.Wan. All Rights Reserved.
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// EMail: 45141961@qq.com
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#if !defined(TREE_H)
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#define TREE_H
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#include <stdlib.h> /* for size_t definition */
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/*BE
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defm defTree(T) // macro to define a tree
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def T concat Node
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{
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n32 ptr T concat Node "parent"
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n32 ptr T concat Node "left"
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n32 ptr T concat Node "right"
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n32 ptr T id2str(T)
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n32 suppress "size"
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}
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def T concat MQTT_Tree
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{
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struct
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{
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n32 ptr T concat Node suppress "root"
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n32 ptr DATA suppress "compare"
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}
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struct
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{
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n32 ptr T concat Node suppress "root"
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n32 ptr DATA suppress "compare"
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}
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n32 dec "count"
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n32 dec suppress "size"
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}
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endm
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defTree(INT)
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defTree(STRING)
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defTree(TMP)
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BE*/
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/**
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* Structure to hold all data for one list element
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*/
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typedef struct MQTT_NodeStruct
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{
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struct MQTT_NodeStruct *parent, /**< pointer to parent tree node, in case we need it */
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*child[2]; /**< pointers to child tree nodes 0 = left, 1 = right */
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void* content; /**< pointer to element content */
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size_t size; /**< size of content */
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unsigned int red : 1;
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} Node;
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/**
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* Structure to hold all data for one tree
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*/
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typedef struct
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{
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struct
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{
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Node *root; /**< root node pointer */
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int (*compare)(void*, void*, int); /**< comparison function */
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} index[2];
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int indexes, /**< no of indexes into tree */
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count; /**< no of items */
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size_t size; /**< heap storage used */
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unsigned int heap_tracking : 1; /**< switch on heap tracking for this tree? */
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unsigned int allow_duplicates : 1; /**< switch to allow duplicate entries */
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} MQTT_Tree;
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MQTT_Tree* MQTTTreeInitialize(int(*compare)(void*, void*, int));
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void MQTTTreeInitializeNoMalloc(MQTT_Tree* aTree, int(*compare)(void*, void*, int));
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void MQTTTreeAddIndex(MQTT_Tree* aTree, int(*compare)(void*, void*, int));
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void* MQTTTreeAdd(MQTT_Tree* aTree, void* content, size_t size);
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void* MQTTTreeRemove(MQTT_Tree* aTree, void* content);
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void* MQTTTreeRemoveKey(MQTT_Tree* aTree, void* key);
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void* MQTTTreeRemoveKeyIndex(MQTT_Tree* aTree, void* key, int index);
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void* MQTTTreeRemoveNodeIndex(MQTT_Tree* aTree, Node* aNode, int index);
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void MQTTTreeFree(MQTT_Tree* aTree);
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Node* MQTTTreeFind(MQTT_Tree* aTree, void* key);
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Node* MQTTTreeFindIndex(MQTT_Tree* aTree, void* key, int index);
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Node* MQTTTreeNextElement(MQTT_Tree* aTree, Node* curnode);
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int MQTTTreeIntCompare(void* a, void* b, int);
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int MQTTTreePtrCompare(void* a, void* b, int);
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int MQTTTreeStringCompare(void* a, void* b, int);
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#endif
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