heap_4.c File Reference

#include <stdlib.h>
#include "FreeRTOS.h"
#include "task.h"

Data Structures
struct	A_BLOCK_LINK

Macros
#define	heapBITS_PER_BYTE   ( ( size_t ) 8 )
#define	heapMINIMUM_BLOCK_SIZE   ( ( size_t ) ( xHeapStructSize << 1 ) )
#define	MPU_WRAPPERS_INCLUDED_FROM_API_FILE

Typedefs
typedef struct A_BLOCK_LINK	BlockLink_t

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

Variables
static BlockLink_t *	pxEnd = NULL
static uint8_t	ucHeap [configTOTAL_HEAP_SIZE]
static size_t	xBlockAllocatedBit = 0
static size_t	xFreeBytesRemaining = 0U
static const size_t	xHeapStructSize = ( sizeof( BlockLink_t ) + ( ( size_t ) ( portBYTE_ALIGNMENT - 1 ) ) ) & ~( ( size_t ) portBYTE_ALIGNMENT_MASK )
static size_t	xMinimumEverFreeBytesRemaining = 0U
static BlockLink_t	xStart

#define heapBITS_PER_BYTE   ( ( size_t ) 8 )

Referenced by prvHeapInit().

#define heapMINIMUM_BLOCK_SIZE   ( ( size_t ) ( xHeapStructSize << 1 ) )

Referenced by pvPortMalloc().

#define MPU_WRAPPERS_INCLUDED_FROM_API_FILE

typedef struct A_BLOCK_LINK BlockLink_t

static void prvHeapInit ( void  )

static

References configTOTAL_HEAP_SIZE, heapBITS_PER_BYTE, NULL, pxEnd, A_BLOCK_LINK::pxNextFreeBlock, ucHeap, A_BLOCK_LINK::xBlockSize, and xHeapStructSize.

Referenced by pvPortMalloc().

static void prvInsertBlockIntoFreeList ( BlockLink_t *  pxBlockToInsert )

static

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

Referenced by pvPortMalloc(), and vPortFree().

void* pvPortMalloc

(

size_t

xWantedSize

)

References configASSERT, heapMINIMUM_BLOCK_SIZE, mtCOVERAGE_TEST_MARKER, NULL, prvHeapInit(), prvInsertBlockIntoFreeList(), A_BLOCK_LINK::pxNextFreeBlock, traceMALLOC, vApplicationMallocFailedHook(), void, vTaskSuspendAll(), xBlockAllocatedBit, A_BLOCK_LINK::xBlockSize, xFreeBytesRemaining, xHeapStructSize, xStart, and xTaskResumeAll().

Referenced by prvAllocateTCBAndStack(), u8_encode(), vTaskList(), xEventGroupCreate(), xQueueCreateMutex(), xQueueGenericCreate(), and xTimerCreate().

void vApplicationMallocFailedHook

(

void

)

Referenced by pvPortMalloc().

void vPortFree

(

void *

pv

)

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

Referenced by prvAllocateTCBAndStack(), prvDeleteTCB(), prvProcessReceivedCommands(), u8_encode(), vEventGroupDelete(), vQueueDelete(), and vTaskList().

void vPortInitialiseBlocks

(

void

)

size_t xPortGetFreeHeapSize

(

void

)

References xFreeBytesRemaining.

size_t xPortGetMinimumEverFreeHeapSize

(

void

)

References xMinimumEverFreeBytesRemaining.

BlockLink_t * pxEnd = NULL

static

Referenced by prvHeapInit(), and prvInsertBlockIntoFreeList().

uint8_t ucHeap[configTOTAL_HEAP_SIZE]

static

Referenced by prvHeapInit().

size_t xBlockAllocatedBit = 0

static

Referenced by pvPortMalloc().

size_t xFreeBytesRemaining = 0U

static

Referenced by pvPortMalloc(), and xPortGetFreeHeapSize().

const size_t xHeapStructSize = ( sizeof( BlockLink_t ) + ( ( size_t ) ( portBYTE_ALIGNMENT - 1 ) ) ) & ~( ( size_t ) portBYTE_ALIGNMENT_MASK )

static

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

size_t xMinimumEverFreeBytesRemaining = 0U

static

Referenced by xPortGetMinimumEverFreeHeapSize().

BlockLink_t xStart

static

Referenced by pvPortMalloc().