heap_4.c File Reference

Data Structures
struct	BlockLink_t

Macros
#define	MPU_WRAPPERS_INCLUDED_FROM_API_FILE
#define	heapMINIMUM_BLOCK_SIZE
#define	heapBITS_PER_BYTE

Functions
static void	prvInsertBlockIntoFreeList (BlockLink_t *pxBlockToInsert)
static void	prvHeapInit (void)
void *	pvPortMalloc (size_t xWantedSize)
void	vPortFree (void *pv)
size_t	xPortGetFreeHeapSize (void)
size_t	xPortGetMinimumEverFreeHeapSize (void)
void	vPortInitialiseBlocks (void)
void	vPortGetHeapStats (HeapStats_t *pxHeapStats)

Variables
static uint8_t	ucHeap [configTOTAL_HEAP_SIZE]
static const size_t	xHeapStructSize
static BlockLink_t	xStart
static BlockLink_t *	pxEnd
static size_t	xFreeBytesRemaining
static size_t	xMinimumEverFreeBytesRemaining
static size_t	xNumberOfSuccessfulAllocations
static size_t	xNumberOfSuccessfulFrees
static size_t	xBlockAllocatedBit

Macro Definition Documentation

#define heapBITS_PER_BYTE

Referenced by prvHeapInit().

#define heapMINIMUM_BLOCK_SIZE

Referenced by pvPortMalloc().

#define MPU_WRAPPERS_INCLUDED_FROM_API_FILE

Function Documentation

static void prvHeapInit ( void  )

static

References heapBITS_PER_BYTE, portBYTE_ALIGNMENT, pxEnd, BlockLink_t::pxNextFreeBlock, ucHeap, BlockLink_t::xBlockSize, and xHeapStructSize.

Referenced by pvPortMalloc().

static void prvInsertBlockIntoFreeList ( BlockLink_t *  pxBlockToInsert )

static

References mtCOVERAGE_TEST_MARKER, pxEnd, BlockLink_t::pxNextFreeBlock, and BlockLink_t::xBlockSize.

Referenced by pvPortMalloc(), and vPortFree().

void* pvPortMalloc

(

size_t

xWantedSize

)

References configASSERT, heapMINIMUM_BLOCK_SIZE, mtCOVERAGE_TEST_MARKER, portBYTE_ALIGNMENT, prvHeapInit(), prvInsertBlockIntoFreeList(), BlockLink_t::pxNextFreeBlock, traceMALLOC, vTaskSuspendAll(), xBlockAllocatedBit, BlockLink_t::xBlockSize, xFreeBytesRemaining, xHeapStructSize, xStart, and xTaskResumeAll().

void vPortFree

(

void *

pv

)

References configASSERT, mtCOVERAGE_TEST_MARKER, prvInsertBlockIntoFreeList(), BlockLink_t::pxNextFreeBlock, traceFREE, vTaskSuspendAll(), BlockLink_t::xBlockSize, xHeapStructSize, and xTaskResumeAll().

void vPortGetHeapStats

(

HeapStats_t *

pxHeapStats

)

References portMAX_DELAY, BlockLink_t::pxNextFreeBlock, taskENTER_CRITICAL, taskEXIT_CRITICAL, vTaskSuspendAll(), HeapStats_t::xAvailableHeapSpaceInBytes, BlockLink_t::xBlockSize, xFreeBytesRemaining, xMinimumEverFreeBytesRemaining, HeapStats_t::xMinimumEverFreeBytesRemaining, HeapStats_t::xNumberOfFreeBlocks, xNumberOfSuccessfulAllocations, HeapStats_t::xNumberOfSuccessfulAllocations, xNumberOfSuccessfulFrees, HeapStats_t::xNumberOfSuccessfulFrees, HeapStats_t::xSizeOfLargestFreeBlockInBytes, HeapStats_t::xSizeOfSmallestFreeBlockInBytes, and xTaskResumeAll().

void vPortInitialiseBlocks

(

void

)

size_t xPortGetFreeHeapSize

(

void

)

References xFreeBytesRemaining.

size_t xPortGetMinimumEverFreeHeapSize

(

void

)

References xMinimumEverFreeBytesRemaining.

Variable Documentation

BlockLink_t * pxEnd

static

Referenced by prvHeapInit(), and prvInsertBlockIntoFreeList().

uint8_t ucHeap[configTOTAL_HEAP_SIZE]

static

Referenced by prvHeapInit().

size_t xBlockAllocatedBit

static

Referenced by pvPortMalloc().

size_t xFreeBytesRemaining

static

Referenced by pvPortMalloc(), vPortGetHeapStats(), and xPortGetFreeHeapSize().

const size_t xHeapStructSize

static

Referenced by prvHeapInit(), pvPortMalloc(), and vPortFree().

size_t xMinimumEverFreeBytesRemaining

static

Referenced by vPortGetHeapStats(), and xPortGetMinimumEverFreeHeapSize().

size_t xNumberOfSuccessfulAllocations

static

Referenced by vPortGetHeapStats().

size_t xNumberOfSuccessfulFrees

static

Referenced by vPortGetHeapStats().

BlockLink_t xStart

static

Referenced by pvPortMalloc().