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SourceVuSTM32 Libraries and SamplesFreeRTOSpvPortMalloc()

pvPortMalloc() function

Syntax

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Summary

Declaration

Definition

from portable.h:163

void *pvPortMalloc( size_t xSize ) PRIVILEGED_FUNCTION;

Implemented in heap_4.c:115

Arguments

Argument

xSize

Examples

pvPortMalloc() is referenced by 2 libraries and example projects:

Libraries

STM32_USB_Host_Library

References

from 0/2 examples

Code

Location

Referrer

void *pvPortMalloc( size_t xWantedSize )

void *pvPortMalloc( size_t xWantedSize )

void *pvPortMalloc( size_t xSize ) PRIVILEGED_FUNCTION;

thePool = pvPortMalloc(sizeof(os_pool_cb_t));

thePool->markers = pvPortMalloc(pool_def->pool_sz);

thePool->pool = pvPortMalloc(pool_def->pool_sz * itemSize);

*(queue_def->cb) = pvPortMalloc(sizeof(struct os_mailQ_cb));

cmsis_os.c:1177

pxEventBits = ( EventGroup_t * ) pvPortMalloc( sizeof( EventGroup_t ) ); /*lint !e9087 !e9079 see comment above. */

event_groups.c:162

xEventGroupCreate()

pvReturn = pvPortMalloc( xSize );

mpu_wrappers.c:903

MPU_pvPortMalloc()

pxNewQueue = ( Queue_t * ) pvPortMalloc( sizeof( Queue_t ) + xQueueSizeInBytes ); /*lint !e9087 !e9079 see comment above. */

xQueueGenericCreate()

pucAllocatedMemory = ( uint8_t * ) pvPortMalloc( xBufferSizeBytes + sizeof( StreamBuffer_t ) ); /*lint !e9079 malloc() only returns void*. */

stream_buffer.c:258

xStreamBufferGenericCreate()

pxNewTCB = ( TCB_t * ) pvPortMalloc( sizeof( TCB_t ) );

xTaskCreateRestricted()

pxStack = pvPortMalloc( ( ( ( size_t ) usStackDepth ) * sizeof( StackType_t ) ) ); /*lint !e9079 All values returned by pvPortMalloc() have at least the alignment required by the MCU's stack and this allocation is the stack. */

pxNewTCB = ( TCB_t * ) pvPortMalloc( sizeof( TCB_t ) ); /*lint !e9087 !e9079 All values returned by pvPortMalloc() have at least the alignment required by the MCU's stack, and the first member of TCB_t is always a pointer to the task's stack. */

pxTaskStatusArray = pvPortMalloc( uxCurrentNumberOfTasks * sizeof( TaskStatus_t ) ); /*lint !e9079 All values returned by pvPortMalloc() have at least the alignment required by the MCU's stack and this allocation allocates a struct that has the alignment requirements of a pointer. */

pxNewTimer = ( Timer_t * ) pvPortMalloc( sizeof( Timer_t ) ); /*lint !e9087 !e9079 All values returned by pvPortMalloc() have at least the alignment required by the MCU's stack, and the first member of Timer_t is always a pointer to the timer's mame. */

Call Tree

from 0/2 examples

pvPortMalloc() is called by 10 functions and calls 5 functions:

xQueueGenericCreate()

xTaskCreateRestricted()

xEventGroupCreate()

xStreamBufferGenericCreate()

MPU_pvPortMalloc()

pvPortMalloc()

vPortRaiseBASEPRI()

vTaskSuspendAll()

xTaskResumeAll()

prvInsertBlockIntoFreeList()

Data Use

from 0/2 examples

pvPortMalloc() reads 9 variables and writes 5 variables:

A_BLOCK_LINK::pxNextFreeBlock

A_BLOCK_LINK::xBlockSize

xHeapStructSize

xFreeBytesRemaining

xMinimumEverFreeBytesRemaining

xNumberOfSuccessfulAllocations

xBlockAllocatedBit

pvPortMalloc()

A_BLOCK_LINK::pxNextFreeBlock

A_BLOCK_LINK::xBlockSize

xFreeBytesRemaining

xMinimumEverFreeBytesRemaining

xNumberOfSuccessfulAllocations

Class Tree

from 0/2 examples

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Override Tree

from 0/2 examples

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Implementations

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Instances

from 0/2 examples

Lifecycle

from 0/2 examples

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