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Implemented heap_6 for C++ real-time applications

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I tried to adjust my heap to FreeRTOS. This is my very first commit to FreeRTOS, i don't even know how to compile the kernel.
Maybe You get it running and let me know what You think about it.

https://forums.freertos.org/t/real-time-memory-manager/19685
This commit is contained in:
Sven Bieg 2024-04-13 21:35:03 +02:00
parent 4d4f8d0d50
commit 0a61cf54e7
14 changed files with 2687 additions and 4 deletions
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87
portable/Heap/heap_block.c Normal file
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//==============
// heap_block.c
//==============
// Copyright 2024, Sven Bieg (svenbieg@web.de)
// http://github.com/svenbieg/Heap
//=======
// Using
//=======
#include "heap.h"
//==================
// Con-/Destructors
//==================
void* heap_block_init(heap_handle_t heap, heap_block_info_t const* info)
{
heap_t* heap_ptr=(heap_t*)heap;
configASSERT(info->size%sizeof(size_t)==0);
configASSERT(info->offset>=(size_t)heap+sizeof(heap_t));
configASSERT(info->offset+info->size<=(size_t)heap+heap_ptr->size);
size_t* head_ptr=(size_t*)info->offset;
*head_ptr=info->header;
head_ptr++;
size_t* foot_ptr=(size_t*)(info->offset+info->size);
foot_ptr--;
*foot_ptr=info->header;
return head_ptr;
}
//========
// Access
//========
void heap_block_get_chain(heap_handle_t heap, void* ptr, heap_block_chain_t* info)
{
heap_t* heap_ptr=(heap_t*)heap;
size_t heap_offset=(size_t)heap;
size_t heap_start=heap_offset+sizeof(heap_t);
size_t offset=heap_block_get_offset(ptr);
size_t* head_ptr=(size_t*)offset;
info->current.offset=offset;
info->current.header=*head_ptr;
if(offset>heap_start)
{
size_t* foot_ptr=(size_t*)offset;
foot_ptr--;
info->previous.header=*foot_ptr;
info->previous.offset=offset-info->previous.size;
}
else
{
info->previous.header=0;
info->previous.offset=0;
}
size_t heap_end=heap_offset+heap_ptr->used;
size_t next_offset=offset+info->current.size;
if(next_offset<heap_end)
{
size_t* head_ptr=(size_t*)next_offset;
info->next.offset=next_offset;
info->next.header=*head_ptr;
}
else
{
info->next.header=0;
info->next.offset=0;
}
}
void heap_block_get_info(heap_handle_t heap, void* ptr, heap_block_info_t* info)
{
heap_t* heap_ptr=(heap_t*)heap;
info->offset=heap_block_get_offset(ptr);
configASSERT(info->offset>=(size_t)heap+sizeof(heap_t));
configASSERT(info->offset<(size_t)heap+heap_ptr->used);
size_t* head_ptr=(size_t*)info->offset;
info->header=*head_ptr;
configASSERT(info->size>=3*sizeof(size_t));
configASSERT(info->offset+info->size<=(size_t)heap+heap_ptr->used);
configASSERT(*((size_t*)(info->offset+info->size-sizeof(size_t)))==*head_ptr);
}