mirror of
https://github.com/FreeRTOS/FreeRTOS-Kernel.git
synced 2025-08-20 01:58:32 -04:00
Style: uncrusitfy
This commit is contained in:
Alfred Gedeon
alfred gedeon
parent
a5dbc2b1de
commit
718178c68a
406 changed files with 108795 additions and 106323 deletions
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@ -35,8 +35,8 @@
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#include <stdlib.h>
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/* Defining MPU_WRAPPERS_INCLUDED_FROM_API_FILE prevents task.h from redefining
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all the API functions to use the MPU wrappers. That should only be done when
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task.h is included from an application file. */
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* all the API functions to use the MPU wrappers. That should only be done when
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* task.h is included from an application file. */
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#define MPU_WRAPPERS_INCLUDED_FROM_API_FILE
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#include "FreeRTOS.h"
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@ -44,31 +44,32 @@ task.h is included from an application file. */
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#undef MPU_WRAPPERS_INCLUDED_FROM_API_FILE
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#if( configSUPPORT_DYNAMIC_ALLOCATION == 0 )
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#error This file must not be used if configSUPPORT_DYNAMIC_ALLOCATION is 0
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#if ( configSUPPORT_DYNAMIC_ALLOCATION == 0 )
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#error This file must not be used if configSUPPORT_DYNAMIC_ALLOCATION is 0
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#endif
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/* Block sizes must not get too small. */
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#define heapMINIMUM_BLOCK_SIZE ( ( size_t ) ( xHeapStructSize << 1 ) )
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#define heapMINIMUM_BLOCK_SIZE ( ( size_t ) ( xHeapStructSize << 1 ) )
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/* Assumes 8bit bytes! */
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#define heapBITS_PER_BYTE ( ( size_t ) 8 )
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#define heapBITS_PER_BYTE ( ( size_t ) 8 )
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/* Allocate the memory for the heap. */
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#if( configAPPLICATION_ALLOCATED_HEAP == 1 )
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/* The application writer has already defined the array used for the RTOS
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heap - probably so it can be placed in a special segment or address. */
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extern uint8_t ucHeap[ configTOTAL_HEAP_SIZE ];
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#if ( configAPPLICATION_ALLOCATED_HEAP == 1 )
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/* The application writer has already defined the array used for the RTOS
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* heap - probably so it can be placed in a special segment or address. */
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extern uint8_t ucHeap[ configTOTAL_HEAP_SIZE ];
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#else
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static uint8_t ucHeap[ configTOTAL_HEAP_SIZE ];
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static uint8_t ucHeap[ configTOTAL_HEAP_SIZE ];
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#endif /* configAPPLICATION_ALLOCATED_HEAP */
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/* Define the linked list structure. This is used to link free blocks in order
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of their memory address. */
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* of their memory address. */
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typedef struct A_BLOCK_LINK
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{
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struct A_BLOCK_LINK *pxNextFreeBlock; /*<< The next free block in the list. */
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size_t xBlockSize; /*<< The size of the free block. */
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struct A_BLOCK_LINK * pxNextFreeBlock; /*<< The next free block in the list. */
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size_t xBlockSize; /*<< The size of the free block. */
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} BlockLink_t;
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/*-----------------------------------------------------------*/
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@ -79,7 +80,7 @@ typedef struct A_BLOCK_LINK
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* the block in front it and/or the block behind it if the memory blocks are
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* adjacent to each other.
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*/
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static void prvInsertBlockIntoFreeList( BlockLink_t *pxBlockToInsert );
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static void prvInsertBlockIntoFreeList( BlockLink_t * pxBlockToInsert );
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/*
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* Called automatically to setup the required heap structures the first time
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@ -90,402 +91,404 @@ static void prvHeapInit( void );
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/*-----------------------------------------------------------*/
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/* The size of the structure placed at the beginning of each allocated memory
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block must by correctly byte aligned. */
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static const size_t xHeapStructSize = ( sizeof( BlockLink_t ) + ( ( size_t ) ( portBYTE_ALIGNMENT - 1 ) ) ) & ~( ( size_t ) portBYTE_ALIGNMENT_MASK );
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* block must by correctly byte aligned. */
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static const size_t xHeapStructSize = ( sizeof( BlockLink_t ) + ( ( size_t ) ( portBYTE_ALIGNMENT - 1 ) ) ) & ~( ( size_t ) portBYTE_ALIGNMENT_MASK );
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/* Create a couple of list links to mark the start and end of the list. */
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static BlockLink_t xStart, *pxEnd = NULL;
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static BlockLink_t xStart, * pxEnd = NULL;
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/* Keeps track of the number of calls to allocate and free memory as well as the
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number of free bytes remaining, but says nothing about fragmentation. */
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static size_t xFreeBytesRemaining = 0U;
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static size_t xMinimumEverFreeBytesRemaining = 0U;
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static size_t xNumberOfSuccessfulAllocations = 0;
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static size_t xNumberOfSuccessfulFrees = 0;
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* number of free bytes remaining, but says nothing about fragmentation. */
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static size_t xFreeBytesRemaining = 0U;
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static size_t xMinimumEverFreeBytesRemaining = 0U;
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static size_t xNumberOfSuccessfulAllocations = 0;
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static size_t xNumberOfSuccessfulFrees = 0;
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/* Gets set to the top bit of an size_t type. When this bit in the xBlockSize
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member of an BlockLink_t structure is set then the block belongs to the
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application. When the bit is free the block is still part of the free heap
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space. */
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static size_t xBlockAllocatedBit = 0;
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* member of an BlockLink_t structure is set then the block belongs to the
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* application. When the bit is free the block is still part of the free heap
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* space. */
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static size_t xBlockAllocatedBit = 0;
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/*-----------------------------------------------------------*/
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void *pvPortMalloc( size_t xWantedSize )
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void * pvPortMalloc( size_t xWantedSize )
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{
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BlockLink_t *pxBlock, *pxPreviousBlock, *pxNewBlockLink;
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void *pvReturn = NULL;
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BlockLink_t * pxBlock, * pxPreviousBlock, * pxNewBlockLink;
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void * pvReturn = NULL;
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vTaskSuspendAll();
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{
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/* If this is the first call to malloc then the heap will require
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initialisation to setup the list of free blocks. */
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if( pxEnd == NULL )
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{
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prvHeapInit();
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}
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else
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{
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mtCOVERAGE_TEST_MARKER();
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}
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vTaskSuspendAll();
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{
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/* If this is the first call to malloc then the heap will require
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* initialisation to setup the list of free blocks. */
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if( pxEnd == NULL )
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{
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prvHeapInit();
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}
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else
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{
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mtCOVERAGE_TEST_MARKER();
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}
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/* Check the requested block size is not so large that the top bit is
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set. The top bit of the block size member of the BlockLink_t structure
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is used to determine who owns the block - the application or the
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kernel, so it must be free. */
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if( ( xWantedSize & xBlockAllocatedBit ) == 0 )
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{
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/* The wanted size is increased so it can contain a BlockLink_t
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structure in addition to the requested amount of bytes. */
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if( xWantedSize > 0 )
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{
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xWantedSize += xHeapStructSize;
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/* Check the requested block size is not so large that the top bit is
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* set. The top bit of the block size member of the BlockLink_t structure
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* is used to determine who owns the block - the application or the
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* kernel, so it must be free. */
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if( ( xWantedSize & xBlockAllocatedBit ) == 0 )
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{
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/* The wanted size is increased so it can contain a BlockLink_t
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* structure in addition to the requested amount of bytes. */
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if( xWantedSize > 0 )
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{
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xWantedSize += xHeapStructSize;
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/* Ensure that blocks are always aligned to the required number
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of bytes. */
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if( ( xWantedSize & portBYTE_ALIGNMENT_MASK ) != 0x00 )
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{
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/* Byte alignment required. */
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xWantedSize += ( portBYTE_ALIGNMENT - ( xWantedSize & portBYTE_ALIGNMENT_MASK ) );
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configASSERT( ( xWantedSize & portBYTE_ALIGNMENT_MASK ) == 0 );
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}
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else
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{
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mtCOVERAGE_TEST_MARKER();
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}
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}
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else
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{
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mtCOVERAGE_TEST_MARKER();
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}
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/* Ensure that blocks are always aligned to the required number
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* of bytes. */
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if( ( xWantedSize & portBYTE_ALIGNMENT_MASK ) != 0x00 )
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{
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/* Byte alignment required. */
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xWantedSize += ( portBYTE_ALIGNMENT - ( xWantedSize & portBYTE_ALIGNMENT_MASK ) );
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configASSERT( ( xWantedSize & portBYTE_ALIGNMENT_MASK ) == 0 );
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}
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else
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{
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mtCOVERAGE_TEST_MARKER();
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}
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}
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else
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{
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mtCOVERAGE_TEST_MARKER();
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}
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if( ( xWantedSize > 0 ) && ( xWantedSize <= xFreeBytesRemaining ) )
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{
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/* Traverse the list from the start (lowest address) block until
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one of adequate size is found. */
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pxPreviousBlock = &xStart;
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pxBlock = xStart.pxNextFreeBlock;
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while( ( pxBlock->xBlockSize < xWantedSize ) && ( pxBlock->pxNextFreeBlock != NULL ) )
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{
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pxPreviousBlock = pxBlock;
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pxBlock = pxBlock->pxNextFreeBlock;
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}
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if( ( xWantedSize > 0 ) && ( xWantedSize <= xFreeBytesRemaining ) )
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{
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/* Traverse the list from the start (lowest address) block until
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* one of adequate size is found. */
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pxPreviousBlock = &xStart;
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pxBlock = xStart.pxNextFreeBlock;
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/* If the end marker was reached then a block of adequate size
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was not found. */
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if( pxBlock != pxEnd )
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{
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/* Return the memory space pointed to - jumping over the
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BlockLink_t structure at its start. */
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pvReturn = ( void * ) ( ( ( uint8_t * ) pxPreviousBlock->pxNextFreeBlock ) + xHeapStructSize );
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while( ( pxBlock->xBlockSize < xWantedSize ) && ( pxBlock->pxNextFreeBlock != NULL ) )
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{
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pxPreviousBlock = pxBlock;
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pxBlock = pxBlock->pxNextFreeBlock;
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}
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/* This block is being returned for use so must be taken out
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of the list of free blocks. */
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pxPreviousBlock->pxNextFreeBlock = pxBlock->pxNextFreeBlock;
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/* If the end marker was reached then a block of adequate size
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* was not found. */
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if( pxBlock != pxEnd )
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{
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/* Return the memory space pointed to - jumping over the
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* BlockLink_t structure at its start. */
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pvReturn = ( void * ) ( ( ( uint8_t * ) pxPreviousBlock->pxNextFreeBlock ) + xHeapStructSize );
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/* If the block is larger than required it can be split into
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two. */
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if( ( pxBlock->xBlockSize - xWantedSize ) > heapMINIMUM_BLOCK_SIZE )
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{
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/* This block is to be split into two. Create a new
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block following the number of bytes requested. The void
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cast is used to prevent byte alignment warnings from the
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compiler. */
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pxNewBlockLink = ( void * ) ( ( ( uint8_t * ) pxBlock ) + xWantedSize );
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configASSERT( ( ( ( size_t ) pxNewBlockLink ) & portBYTE_ALIGNMENT_MASK ) == 0 );
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/* This block is being returned for use so must be taken out
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* of the list of free blocks. */
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pxPreviousBlock->pxNextFreeBlock = pxBlock->pxNextFreeBlock;
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/* Calculate the sizes of two blocks split from the
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single block. */
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pxNewBlockLink->xBlockSize = pxBlock->xBlockSize - xWantedSize;
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pxBlock->xBlockSize = xWantedSize;
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/* If the block is larger than required it can be split into
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* two. */
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if( ( pxBlock->xBlockSize - xWantedSize ) > heapMINIMUM_BLOCK_SIZE )
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{
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/* This block is to be split into two. Create a new
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* block following the number of bytes requested. The void
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* cast is used to prevent byte alignment warnings from the
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* compiler. */
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pxNewBlockLink = ( void * ) ( ( ( uint8_t * ) pxBlock ) + xWantedSize );
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configASSERT( ( ( ( size_t ) pxNewBlockLink ) & portBYTE_ALIGNMENT_MASK ) == 0 );
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/* Insert the new block into the list of free blocks. */
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prvInsertBlockIntoFreeList( pxNewBlockLink );
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}
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else
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{
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mtCOVERAGE_TEST_MARKER();
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}
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/* Calculate the sizes of two blocks split from the
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* single block. */
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pxNewBlockLink->xBlockSize = pxBlock->xBlockSize - xWantedSize;
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pxBlock->xBlockSize = xWantedSize;
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xFreeBytesRemaining -= pxBlock->xBlockSize;
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/* Insert the new block into the list of free blocks. */
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prvInsertBlockIntoFreeList( pxNewBlockLink );
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}
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else
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{
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mtCOVERAGE_TEST_MARKER();
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}
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if( xFreeBytesRemaining < xMinimumEverFreeBytesRemaining )
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{
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xMinimumEverFreeBytesRemaining = xFreeBytesRemaining;
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}
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else
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{
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mtCOVERAGE_TEST_MARKER();
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}
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xFreeBytesRemaining -= pxBlock->xBlockSize;
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/* The block is being returned - it is allocated and owned
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by the application and has no "next" block. */
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pxBlock->xBlockSize |= xBlockAllocatedBit;
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pxBlock->pxNextFreeBlock = NULL;
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xNumberOfSuccessfulAllocations++;
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}
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else
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{
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mtCOVERAGE_TEST_MARKER();
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}
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}
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else
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{
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mtCOVERAGE_TEST_MARKER();
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}
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}
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else
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{
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mtCOVERAGE_TEST_MARKER();
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}
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if( xFreeBytesRemaining < xMinimumEverFreeBytesRemaining )
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{
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xMinimumEverFreeBytesRemaining = xFreeBytesRemaining;
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}
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else
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{
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mtCOVERAGE_TEST_MARKER();
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}
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traceMALLOC( pvReturn, xWantedSize );
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}
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( void ) xTaskResumeAll();
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/* The block is being returned - it is allocated and owned
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* by the application and has no "next" block. */
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pxBlock->xBlockSize |= xBlockAllocatedBit;
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pxBlock->pxNextFreeBlock = NULL;
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xNumberOfSuccessfulAllocations++;
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}
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else
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{
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mtCOVERAGE_TEST_MARKER();
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}
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}
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else
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{
|
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mtCOVERAGE_TEST_MARKER();
|
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}
|
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}
|
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else
|
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{
|
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mtCOVERAGE_TEST_MARKER();
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}
|
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|
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#if( configUSE_MALLOC_FAILED_HOOK == 1 )
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{
|
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if( pvReturn == NULL )
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{
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extern void vApplicationMallocFailedHook( void );
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vApplicationMallocFailedHook();
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}
|
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else
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{
|
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mtCOVERAGE_TEST_MARKER();
|
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}
|
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}
|
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#endif
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traceMALLOC( pvReturn, xWantedSize );
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}
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( void ) xTaskResumeAll();
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configASSERT( ( ( ( size_t ) pvReturn ) & ( size_t ) portBYTE_ALIGNMENT_MASK ) == 0 );
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return pvReturn;
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#if ( configUSE_MALLOC_FAILED_HOOK == 1 )
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{
|
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if( pvReturn == NULL )
|
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{
|
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extern void vApplicationMallocFailedHook( void );
|
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vApplicationMallocFailedHook();
|
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}
|
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else
|
||||
{
|
||||
mtCOVERAGE_TEST_MARKER();
|
||||
}
|
||||
}
|
||||
#endif /* if ( configUSE_MALLOC_FAILED_HOOK == 1 ) */
|
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|
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configASSERT( ( ( ( size_t ) pvReturn ) & ( size_t ) portBYTE_ALIGNMENT_MASK ) == 0 );
|
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return pvReturn;
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}
|
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/*-----------------------------------------------------------*/
|
||||
|
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void vPortFree( void *pv )
|
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void vPortFree( void * pv )
|
||||
{
|
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uint8_t *puc = ( uint8_t * ) pv;
|
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BlockLink_t *pxLink;
|
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uint8_t * puc = ( uint8_t * ) pv;
|
||||
BlockLink_t * pxLink;
|
||||
|
||||
if( pv != NULL )
|
||||
{
|
||||
/* The memory being freed will have an BlockLink_t structure immediately
|
||||
before it. */
|
||||
puc -= xHeapStructSize;
|
||||
if( pv != NULL )
|
||||
{
|
||||
/* The memory being freed will have an BlockLink_t structure immediately
|
||||
* before it. */
|
||||
puc -= xHeapStructSize;
|
||||
|
||||
/* This casting is to keep the compiler from issuing warnings. */
|
||||
pxLink = ( void * ) puc;
|
||||
/* This casting is to keep the compiler from issuing warnings. */
|
||||
pxLink = ( void * ) puc;
|
||||
|
||||
/* Check the block is actually allocated. */
|
||||
configASSERT( ( pxLink->xBlockSize & xBlockAllocatedBit ) != 0 );
|
||||
configASSERT( pxLink->pxNextFreeBlock == NULL );
|
||||
/* Check the block is actually allocated. */
|
||||
configASSERT( ( pxLink->xBlockSize & xBlockAllocatedBit ) != 0 );
|
||||
configASSERT( pxLink->pxNextFreeBlock == NULL );
|
||||
|
||||
if( ( pxLink->xBlockSize & xBlockAllocatedBit ) != 0 )
|
||||
{
|
||||
if( pxLink->pxNextFreeBlock == NULL )
|
||||
{
|
||||
/* The block is being returned to the heap - it is no longer
|
||||
allocated. */
|
||||
pxLink->xBlockSize &= ~xBlockAllocatedBit;
|
||||
if( ( pxLink->xBlockSize & xBlockAllocatedBit ) != 0 )
|
||||
{
|
||||
if( pxLink->pxNextFreeBlock == NULL )
|
||||
{
|
||||
/* The block is being returned to the heap - it is no longer
|
||||
* allocated. */
|
||||
pxLink->xBlockSize &= ~xBlockAllocatedBit;
|
||||
|
||||
vTaskSuspendAll();
|
||||
{
|
||||
/* Add this block to the list of free blocks. */
|
||||
xFreeBytesRemaining += pxLink->xBlockSize;
|
||||
traceFREE( pv, pxLink->xBlockSize );
|
||||
prvInsertBlockIntoFreeList( ( ( BlockLink_t * ) pxLink ) );
|
||||
xNumberOfSuccessfulFrees++;
|
||||
}
|
||||
( void ) xTaskResumeAll();
|
||||
}
|
||||
else
|
||||
{
|
||||
mtCOVERAGE_TEST_MARKER();
|
||||
}
|
||||
}
|
||||
else
|
||||
{
|
||||
mtCOVERAGE_TEST_MARKER();
|
||||
}
|
||||
}
|
||||
vTaskSuspendAll();
|
||||
{
|
||||
/* Add this block to the list of free blocks. */
|
||||
xFreeBytesRemaining += pxLink->xBlockSize;
|
||||
traceFREE( pv, pxLink->xBlockSize );
|
||||
prvInsertBlockIntoFreeList( ( ( BlockLink_t * ) pxLink ) );
|
||||
xNumberOfSuccessfulFrees++;
|
||||
}
|
||||
( void ) xTaskResumeAll();
|
||||
}
|
||||
else
|
||||
{
|
||||
mtCOVERAGE_TEST_MARKER();
|
||||
}
|
||||
}
|
||||
else
|
||||
{
|
||||
mtCOVERAGE_TEST_MARKER();
|
||||
}
|
||||
}
|
||||
}
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
size_t xPortGetFreeHeapSize( void )
|
||||
{
|
||||
return xFreeBytesRemaining;
|
||||
return xFreeBytesRemaining;
|
||||
}
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
size_t xPortGetMinimumEverFreeHeapSize( void )
|
||||
{
|
||||
return xMinimumEverFreeBytesRemaining;
|
||||
return xMinimumEverFreeBytesRemaining;
|
||||
}
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
void vPortInitialiseBlocks( void )
|
||||
{
|
||||
/* This just exists to keep the linker quiet. */
|
||||
/* This just exists to keep the linker quiet. */
|
||||
}
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
static void prvHeapInit( void )
|
||||
{
|
||||
BlockLink_t *pxFirstFreeBlock;
|
||||
uint8_t *pucAlignedHeap;
|
||||
size_t uxAddress;
|
||||
size_t xTotalHeapSize = configTOTAL_HEAP_SIZE;
|
||||
BlockLink_t * pxFirstFreeBlock;
|
||||
uint8_t * pucAlignedHeap;
|
||||
size_t uxAddress;
|
||||
size_t xTotalHeapSize = configTOTAL_HEAP_SIZE;
|
||||
|
||||
/* Ensure the heap starts on a correctly aligned boundary. */
|
||||
uxAddress = ( size_t ) ucHeap;
|
||||
/* Ensure the heap starts on a correctly aligned boundary. */
|
||||
uxAddress = ( size_t ) ucHeap;
|
||||
|
||||
if( ( uxAddress & portBYTE_ALIGNMENT_MASK ) != 0 )
|
||||
{
|
||||
uxAddress += ( portBYTE_ALIGNMENT - 1 );
|
||||
uxAddress &= ~( ( size_t ) portBYTE_ALIGNMENT_MASK );
|
||||
xTotalHeapSize -= uxAddress - ( size_t ) ucHeap;
|
||||
}
|
||||
if( ( uxAddress & portBYTE_ALIGNMENT_MASK ) != 0 )
|
||||
{
|
||||
uxAddress += ( portBYTE_ALIGNMENT - 1 );
|
||||
uxAddress &= ~( ( size_t ) portBYTE_ALIGNMENT_MASK );
|
||||
xTotalHeapSize -= uxAddress - ( size_t ) ucHeap;
|
||||
}
|
||||
|
||||
pucAlignedHeap = ( uint8_t * ) uxAddress;
|
||||
pucAlignedHeap = ( uint8_t * ) uxAddress;
|
||||
|
||||
/* xStart is used to hold a pointer to the first item in the list of free
|
||||
blocks. The void cast is used to prevent compiler warnings. */
|
||||
xStart.pxNextFreeBlock = ( void * ) pucAlignedHeap;
|
||||
xStart.xBlockSize = ( size_t ) 0;
|
||||
/* xStart is used to hold a pointer to the first item in the list of free
|
||||
* blocks. The void cast is used to prevent compiler warnings. */
|
||||
xStart.pxNextFreeBlock = ( void * ) pucAlignedHeap;
|
||||
xStart.xBlockSize = ( size_t ) 0;
|
||||
|
||||
/* pxEnd is used to mark the end of the list of free blocks and is inserted
|
||||
at the end of the heap space. */
|
||||
uxAddress = ( ( size_t ) pucAlignedHeap ) + xTotalHeapSize;
|
||||
uxAddress -= xHeapStructSize;
|
||||
uxAddress &= ~( ( size_t ) portBYTE_ALIGNMENT_MASK );
|
||||
pxEnd = ( void * ) uxAddress;
|
||||
pxEnd->xBlockSize = 0;
|
||||
pxEnd->pxNextFreeBlock = NULL;
|
||||
/* pxEnd is used to mark the end of the list of free blocks and is inserted
|
||||
* at the end of the heap space. */
|
||||
uxAddress = ( ( size_t ) pucAlignedHeap ) + xTotalHeapSize;
|
||||
uxAddress -= xHeapStructSize;
|
||||
uxAddress &= ~( ( size_t ) portBYTE_ALIGNMENT_MASK );
|
||||
pxEnd = ( void * ) uxAddress;
|
||||
pxEnd->xBlockSize = 0;
|
||||
pxEnd->pxNextFreeBlock = NULL;
|
||||
|
||||
/* To start with there is a single free block that is sized to take up the
|
||||
entire heap space, minus the space taken by pxEnd. */
|
||||
pxFirstFreeBlock = ( void * ) pucAlignedHeap;
|
||||
pxFirstFreeBlock->xBlockSize = uxAddress - ( size_t ) pxFirstFreeBlock;
|
||||
pxFirstFreeBlock->pxNextFreeBlock = pxEnd;
|
||||
/* To start with there is a single free block that is sized to take up the
|
||||
* entire heap space, minus the space taken by pxEnd. */
|
||||
pxFirstFreeBlock = ( void * ) pucAlignedHeap;
|
||||
pxFirstFreeBlock->xBlockSize = uxAddress - ( size_t ) pxFirstFreeBlock;
|
||||
pxFirstFreeBlock->pxNextFreeBlock = pxEnd;
|
||||
|
||||
/* Only one block exists - and it covers the entire usable heap space. */
|
||||
xMinimumEverFreeBytesRemaining = pxFirstFreeBlock->xBlockSize;
|
||||
xFreeBytesRemaining = pxFirstFreeBlock->xBlockSize;
|
||||
/* Only one block exists - and it covers the entire usable heap space. */
|
||||
xMinimumEverFreeBytesRemaining = pxFirstFreeBlock->xBlockSize;
|
||||
xFreeBytesRemaining = pxFirstFreeBlock->xBlockSize;
|
||||
|
||||
/* Work out the position of the top bit in a size_t variable. */
|
||||
xBlockAllocatedBit = ( ( size_t ) 1 ) << ( ( sizeof( size_t ) * heapBITS_PER_BYTE ) - 1 );
|
||||
/* Work out the position of the top bit in a size_t variable. */
|
||||
xBlockAllocatedBit = ( ( size_t ) 1 ) << ( ( sizeof( size_t ) * heapBITS_PER_BYTE ) - 1 );
|
||||
}
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
static void prvInsertBlockIntoFreeList( BlockLink_t *pxBlockToInsert )
|
||||
static void prvInsertBlockIntoFreeList( BlockLink_t * pxBlockToInsert )
|
||||
{
|
||||
BlockLink_t *pxIterator;
|
||||
uint8_t *puc;
|
||||
BlockLink_t * pxIterator;
|
||||
uint8_t * puc;
|
||||
|
||||
/* Iterate through the list until a block is found that has a higher address
|
||||
than the block being inserted. */
|
||||
for( pxIterator = &xStart; pxIterator->pxNextFreeBlock < pxBlockToInsert; pxIterator = pxIterator->pxNextFreeBlock )
|
||||
{
|
||||
/* Nothing to do here, just iterate to the right position. */
|
||||
}
|
||||
/* Iterate through the list until a block is found that has a higher address
|
||||
* than the block being inserted. */
|
||||
for( pxIterator = &xStart; pxIterator->pxNextFreeBlock < pxBlockToInsert; pxIterator = pxIterator->pxNextFreeBlock )
|
||||
{
|
||||
/* Nothing to do here, just iterate to the right position. */
|
||||
}
|
||||
|
||||
/* Do the block being inserted, and the block it is being inserted after
|
||||
make a contiguous block of memory? */
|
||||
puc = ( uint8_t * ) pxIterator;
|
||||
if( ( puc + pxIterator->xBlockSize ) == ( uint8_t * ) pxBlockToInsert )
|
||||
{
|
||||
pxIterator->xBlockSize += pxBlockToInsert->xBlockSize;
|
||||
pxBlockToInsert = pxIterator;
|
||||
}
|
||||
else
|
||||
{
|
||||
mtCOVERAGE_TEST_MARKER();
|
||||
}
|
||||
/* Do the block being inserted, and the block it is being inserted after
|
||||
* make a contiguous block of memory? */
|
||||
puc = ( uint8_t * ) pxIterator;
|
||||
|
||||
/* Do the block being inserted, and the block it is being inserted before
|
||||
make a contiguous block of memory? */
|
||||
puc = ( uint8_t * ) pxBlockToInsert;
|
||||
if( ( puc + pxBlockToInsert->xBlockSize ) == ( uint8_t * ) pxIterator->pxNextFreeBlock )
|
||||
{
|
||||
if( pxIterator->pxNextFreeBlock != pxEnd )
|
||||
{
|
||||
/* Form one big block from the two blocks. */
|
||||
pxBlockToInsert->xBlockSize += pxIterator->pxNextFreeBlock->xBlockSize;
|
||||
pxBlockToInsert->pxNextFreeBlock = pxIterator->pxNextFreeBlock->pxNextFreeBlock;
|
||||
}
|
||||
else
|
||||
{
|
||||
pxBlockToInsert->pxNextFreeBlock = pxEnd;
|
||||
}
|
||||
}
|
||||
else
|
||||
{
|
||||
pxBlockToInsert->pxNextFreeBlock = pxIterator->pxNextFreeBlock;
|
||||
}
|
||||
if( ( puc + pxIterator->xBlockSize ) == ( uint8_t * ) pxBlockToInsert )
|
||||
{
|
||||
pxIterator->xBlockSize += pxBlockToInsert->xBlockSize;
|
||||
pxBlockToInsert = pxIterator;
|
||||
}
|
||||
else
|
||||
{
|
||||
mtCOVERAGE_TEST_MARKER();
|
||||
}
|
||||
|
||||
/* If the block being inserted plugged a gab, so was merged with the block
|
||||
before and the block after, then it's pxNextFreeBlock pointer will have
|
||||
already been set, and should not be set here as that would make it point
|
||||
to itself. */
|
||||
if( pxIterator != pxBlockToInsert )
|
||||
{
|
||||
pxIterator->pxNextFreeBlock = pxBlockToInsert;
|
||||
}
|
||||
else
|
||||
{
|
||||
mtCOVERAGE_TEST_MARKER();
|
||||
}
|
||||
/* Do the block being inserted, and the block it is being inserted before
|
||||
* make a contiguous block of memory? */
|
||||
puc = ( uint8_t * ) pxBlockToInsert;
|
||||
|
||||
if( ( puc + pxBlockToInsert->xBlockSize ) == ( uint8_t * ) pxIterator->pxNextFreeBlock )
|
||||
{
|
||||
if( pxIterator->pxNextFreeBlock != pxEnd )
|
||||
{
|
||||
/* Form one big block from the two blocks. */
|
||||
pxBlockToInsert->xBlockSize += pxIterator->pxNextFreeBlock->xBlockSize;
|
||||
pxBlockToInsert->pxNextFreeBlock = pxIterator->pxNextFreeBlock->pxNextFreeBlock;
|
||||
}
|
||||
else
|
||||
{
|
||||
pxBlockToInsert->pxNextFreeBlock = pxEnd;
|
||||
}
|
||||
}
|
||||
else
|
||||
{
|
||||
pxBlockToInsert->pxNextFreeBlock = pxIterator->pxNextFreeBlock;
|
||||
}
|
||||
|
||||
/* If the block being inserted plugged a gab, so was merged with the block
|
||||
* before and the block after, then it's pxNextFreeBlock pointer will have
|
||||
* already been set, and should not be set here as that would make it point
|
||||
* to itself. */
|
||||
if( pxIterator != pxBlockToInsert )
|
||||
{
|
||||
pxIterator->pxNextFreeBlock = pxBlockToInsert;
|
||||
}
|
||||
else
|
||||
{
|
||||
mtCOVERAGE_TEST_MARKER();
|
||||
}
|
||||
}
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
void vPortGetHeapStats( HeapStats_t *pxHeapStats )
|
||||
void vPortGetHeapStats( HeapStats_t * pxHeapStats )
|
||||
{
|
||||
BlockLink_t *pxBlock;
|
||||
size_t xBlocks = 0, xMaxSize = 0, xMinSize = portMAX_DELAY; /* portMAX_DELAY used as a portable way of getting the maximum value. */
|
||||
BlockLink_t * pxBlock;
|
||||
size_t xBlocks = 0, xMaxSize = 0, xMinSize = portMAX_DELAY; /* portMAX_DELAY used as a portable way of getting the maximum value. */
|
||||
|
||||
vTaskSuspendAll();
|
||||
{
|
||||
pxBlock = xStart.pxNextFreeBlock;
|
||||
vTaskSuspendAll();
|
||||
{
|
||||
pxBlock = xStart.pxNextFreeBlock;
|
||||
|
||||
/* pxBlock will be NULL if the heap has not been initialised. The heap
|
||||
is initialised automatically when the first allocation is made. */
|
||||
if( pxBlock != NULL )
|
||||
{
|
||||
do
|
||||
{
|
||||
/* Increment the number of blocks and record the largest block seen
|
||||
so far. */
|
||||
xBlocks++;
|
||||
/* pxBlock will be NULL if the heap has not been initialised. The heap
|
||||
* is initialised automatically when the first allocation is made. */
|
||||
if( pxBlock != NULL )
|
||||
{
|
||||
do
|
||||
{
|
||||
/* Increment the number of blocks and record the largest block seen
|
||||
* so far. */
|
||||
xBlocks++;
|
||||
|
||||
if( pxBlock->xBlockSize > xMaxSize )
|
||||
{
|
||||
xMaxSize = pxBlock->xBlockSize;
|
||||
}
|
||||
if( pxBlock->xBlockSize > xMaxSize )
|
||||
{
|
||||
xMaxSize = pxBlock->xBlockSize;
|
||||
}
|
||||
|
||||
if( pxBlock->xBlockSize < xMinSize )
|
||||
{
|
||||
xMinSize = pxBlock->xBlockSize;
|
||||
}
|
||||
if( pxBlock->xBlockSize < xMinSize )
|
||||
{
|
||||
xMinSize = pxBlock->xBlockSize;
|
||||
}
|
||||
|
||||
/* Move to the next block in the chain until the last block is
|
||||
reached. */
|
||||
pxBlock = pxBlock->pxNextFreeBlock;
|
||||
} while( pxBlock != pxEnd );
|
||||
}
|
||||
}
|
||||
( void ) xTaskResumeAll();
|
||||
/* Move to the next block in the chain until the last block is
|
||||
* reached. */
|
||||
pxBlock = pxBlock->pxNextFreeBlock;
|
||||
} while( pxBlock != pxEnd );
|
||||
}
|
||||
}
|
||||
( void ) xTaskResumeAll();
|
||||
|
||||
pxHeapStats->xSizeOfLargestFreeBlockInBytes = xMaxSize;
|
||||
pxHeapStats->xSizeOfSmallestFreeBlockInBytes = xMinSize;
|
||||
pxHeapStats->xNumberOfFreeBlocks = xBlocks;
|
||||
pxHeapStats->xSizeOfLargestFreeBlockInBytes = xMaxSize;
|
||||
pxHeapStats->xSizeOfSmallestFreeBlockInBytes = xMinSize;
|
||||
pxHeapStats->xNumberOfFreeBlocks = xBlocks;
|
||||
|
||||
taskENTER_CRITICAL();
|
||||
{
|
||||
pxHeapStats->xAvailableHeapSpaceInBytes = xFreeBytesRemaining;
|
||||
pxHeapStats->xNumberOfSuccessfulAllocations = xNumberOfSuccessfulAllocations;
|
||||
pxHeapStats->xNumberOfSuccessfulFrees = xNumberOfSuccessfulFrees;
|
||||
pxHeapStats->xMinimumEverFreeBytesRemaining = xMinimumEverFreeBytesRemaining;
|
||||
}
|
||||
taskEXIT_CRITICAL();
|
||||
taskENTER_CRITICAL();
|
||||
{
|
||||
pxHeapStats->xAvailableHeapSpaceInBytes = xFreeBytesRemaining;
|
||||
pxHeapStats->xNumberOfSuccessfulAllocations = xNumberOfSuccessfulAllocations;
|
||||
pxHeapStats->xNumberOfSuccessfulFrees = xNumberOfSuccessfulFrees;
|
||||
pxHeapStats->xMinimumEverFreeBytesRemaining = xMinimumEverFreeBytesRemaining;
|
||||
}
|
||||
taskEXIT_CRITICAL();
|
||||
}
|
||||
|
||||
|
|
|
|||
Loading…
Add table
Add a link
Reference in a new issue