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Update example pvPortRealloc example.

pull/6/head
Kareem 2023-07-19 15:26:48 -07:00
parent 115cd3acf5
commit 2f85ce02f1
2 changed files with 22 additions and 24 deletions
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23
FreeRTOS-Classic/FreeRTOS/Source/portable/MemMang/heap_4.c
View File

@ -310,21 +310,20 @@ BlockLink_t *pxLink;
void *pvPortRealloc( void *pv, size_t xWantedSize ) void *pvPortRealloc( void *pv, size_t xWantedSize )
{ {
void *pvReturn = NULL; void *pvReturn = NULL;
if(pv) if (xWantedSize == 0)
{ {
BlockLink_t *pxLink = (BlockLink_t *)((char*)pv - xHeapStructSize); if (pv)
if(pxLink->xBlockSize & xBlockAllocatedBit) vPortFree(pv);
}
else if (pv)
{
pvReturn = pvPortMalloc(xWantedSize);
if(pvReturn)
{ {
uint32_t blockSize = (pxLink->xBlockSize & ~xBlockAllocatedBit); memcpy(pvReturn, pv, xWantedSize);
blockSize -= xHeapStructSize; vPortFree(pv);
pvReturn = pvPortMalloc(xWantedSize);
if(pvReturn)
{
memcpy(pvReturn, pv, blockSize);
vPortFree(pv);
}
} }
} }
else { else {

23
FreeRTOS-Classic/FreeRTOS/Source/portable/MemMang/heap_5.c
View File

@ -319,21 +319,20 @@ BlockLink_t *pxLink;
void *pvPortRealloc( void *pv, size_t xWantedSize ) void *pvPortRealloc( void *pv, size_t xWantedSize )
{ {
void *pvReturn = NULL; void *pvReturn = NULL;
if(pv) if (xWantedSize == 0)
{ {
BlockLink_t *pxLink = (BlockLink_t *)((char*)pv - uxHeapStructSize); if (pv)
if(pxLink->xBlockSize & xBlockAllocatedBit) vPortFree(pv);
}
else if (pv)
{
pvReturn = pvPortMalloc(xWantedSize);
if(pvReturn)
{ {
uint32_t blockSize = (pxLink->xBlockSize & ~xBlockAllocatedBit); memcpy(pvReturn, pv, xWantedSize);
blockSize -= uxHeapStructSize; vPortFree(pv);
pvReturn = pvPortMalloc(xWantedSize);
if(pvReturn)
{
memcpy(pvReturn, pv, blockSize);
vPortFree(pv);
}
} }
} }
else { else {