mirror of
https://github.com/FreeRTOS/FreeRTOS-Kernel.git
synced 2025-12-06 21:25:00 -05:00
e473cf6caa
My implementation is now compiling and running. I've made a test with the WIN32-MSVC demo.
126 lines
2.3 KiB
C
126 lines
2.3 KiB
C
//========
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// heap.h
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//========
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// Memory-manager for real-time C++ applications.
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// Allocations and deletions are done in constant low time.
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// Copyright 2024, Sven Bieg (svenbieg@web.de)
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// http://github.com/svenbieg/Heap
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#ifndef _HEAP_H
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#define _HEAP_H
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//=======
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// Using
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//=======
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#include <stdbool.h>
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#include <stddef.h>
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#include <stdint.h>
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#include <string.h>
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#define MPU_WRAPPERS_INCLUDED_FROM_API_FILE
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#include "FreeRTOS.h"
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#include "task.h"
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#undef MPU_WRAPPERS_INCLUDED_FROM_API_FILE
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//==========
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// Settings
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//==========
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#define configUSE_HEAP_IN_ISR 1
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#define CLUSTER_GROUP_SIZE 10
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//===========
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// Alignment
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//===========
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#define SIZE_BITS (sizeof(size_t)*8)
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#define SIZE_BYTES sizeof(size_t)
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#define BLOCK_SIZE_MIN (4*SIZE_BYTES)
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static inline size_t align_down(size_t value, size_t align)
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{
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return value&~(align-1);
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}
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static inline size_t align_up(size_t value, size_t align)
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{
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return value+(align-value%align)%align;
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}
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//======
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// Heap
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//======
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typedef struct _heap_t
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{
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size_t free;
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size_t used;
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size_t size;
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size_t free_block;
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size_t next_heap;
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size_t map_free;
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}heap_t;
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typedef heap_t* heap_handle_t;
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//==========
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// Creation
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//==========
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heap_handle_t heap_create(heap_handle_t prev_heap, size_t offset, size_t size);
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//============
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// Allocation
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//============
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void* heap_alloc(heap_handle_t heap, size_t size);
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void heap_free(heap_handle_t heap, void* buffer);
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//=====================
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// Internal Allocation
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//=====================
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void* heap_alloc_from_foot(heap_handle_t heap, size_t size);
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void* heap_alloc_from_map(heap_handle_t heap, size_t size);
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void* heap_alloc_internal(heap_handle_t heap, size_t size);
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void heap_free_cache(heap_handle_t heap);
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void heap_free_to_cache(heap_handle_t heap, void* buf);
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void heap_free_to_map(heap_handle_t heap, void* buf);
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//===========
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// Statistic
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//===========
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size_t heap_get_largest_free_block(heap_handle_t heap);
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//==========
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// FreeRTOS
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//==========
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void* pvPortCalloc(size_t xNum, size_t xSize);
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void* pvPortMalloc(size_t xWantedSize);
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void vPortDefineHeapRegions(HeapRegion_t const* pxHeapRegions)PRIVILEGED_FUNCTION;
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void vPortFree(void* pv);
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void vPortGetHeapStats(HeapStats_t* pxHeapStats);
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void vPortHeapResetState(void);
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size_t xPortGetFreeHeapSize(void);
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size_t xPortGetMinimumEverFreeHeapSize(void);
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#endif // _HEAP_H
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