91 lines
2.4 KiB
C
91 lines
2.4 KiB
C
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/*******************************************************************************
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* Copyright (c) 2009, 2020 IBM Corp. and others
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*
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* All rights reserved. This program and the accompanying materials
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* are made available under the terms of the Eclipse Public License v2.0
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* and Eclipse Distribution License v1.0 which accompany this distribution.
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*
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* The Eclipse Public License is available at
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* https://www.eclipse.org/legal/epl-2.0/
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* and the Eclipse Distribution License is available at
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* http://www.eclipse.org/org/documents/edl-v10.php.
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*
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* Contributors:
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* Ian Craggs - initial API and implementation and/or initial documentation
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* Ian Craggs - use tree data structure instead of list
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*******************************************************************************/
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#if !defined(HEAP_H)
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#define HEAP_H
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#if defined(HIGH_PERFORMANCE)
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#define NO_HEAP_TRACKING 1
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#endif
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#define PAHO_MEMORY_ERROR -99
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#include "MQTTExportDeclarations.h"
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#include <stdio.h>
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#include <stdlib.h>
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#if !defined(NO_HEAP_TRACKING)
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#if !defined(TREE_C)
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/**
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* redefines malloc to use "mymalloc" so that heap allocation can be tracked
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* @param x the size of the item to be allocated
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* @return the pointer to the item allocated, or NULL
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*/
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#define malloc(x) mymalloc(__FILE__, __LINE__, x)
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/**
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* redefines realloc to use "myrealloc" so that heap allocation can be tracked
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* @param a the heap item to be reallocated
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* @param b the new size of the item
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* @return the new pointer to the heap item
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*/
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#define realloc(a, b) myrealloc(__FILE__, __LINE__, a, b)
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/**
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* redefines free to use "myfree" so that heap allocation can be tracked
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* @param x the pointer to the item to be freed
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*/
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#define free(x) myfree(__FILE__, __LINE__, x)
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#endif
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/**
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* Information about the state of the heap.
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*/
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typedef struct
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{
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size_t current_size; /**< current size of the heap in bytes */
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size_t max_size; /**< max size the heap has reached in bytes */
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} heap_info;
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#if defined(__cplusplus)
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extern "C" {
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#endif
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void* mymalloc(char*, int, size_t size);
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void* myrealloc(char*, int, void* p, size_t size);
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void myfree(char*, int, void* p);
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void Heap_scan(FILE* file);
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int Heap_initialize(void);
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void Heap_terminate(void);
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LIBMQTT_API heap_info* Heap_get_info(void);
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int HeapDump(FILE* file);
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int HeapDumpString(FILE* file, char* str);
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void* Heap_findItem(void* p);
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void Heap_unlink(char* file, int line, void* p);
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#ifdef __cplusplus
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}
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#endif
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#endif
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#endif
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