/*\r
- FreeRTOS V8.1.1 - Copyright (C) 2014 Real Time Engineers Ltd.\r
- All rights reserved\r
-\r
- VISIT http://www.FreeRTOS.org TO ENSURE YOU ARE USING THE LATEST VERSION.\r
-\r
- ***************************************************************************\r
- * *\r
- * FreeRTOS provides completely free yet professionally developed, *\r
- * robust, strictly quality controlled, supported, and cross *\r
- * platform software that has become a de facto standard. *\r
- * *\r
- * Help yourself get started quickly and support the FreeRTOS *\r
- * project by purchasing a FreeRTOS tutorial book, reference *\r
- * manual, or both from: http://www.FreeRTOS.org/Documentation *\r
- * *\r
- * Thank you! *\r
- * *\r
- ***************************************************************************\r
-\r
- This file is part of the FreeRTOS distribution.\r
-\r
- FreeRTOS is free software; you can redistribute it and/or modify it under\r
- the terms of the GNU General Public License (version 2) as published by the\r
- Free Software Foundation >>!AND MODIFIED BY!<< the FreeRTOS exception.\r
-\r
- >>! NOTE: The modification to the GPL is included to allow you to !<<\r
- >>! distribute a combined work that includes FreeRTOS without being !<<\r
- >>! obliged to provide the source code for proprietary components !<<\r
- >>! outside of the FreeRTOS kernel. !<<\r
-\r
- FreeRTOS is distributed in the hope that it will be useful, but WITHOUT ANY\r
- WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS\r
- FOR A PARTICULAR PURPOSE. Full license text is available from the following\r
- link: http://www.freertos.org/a00114.html\r
-\r
- 1 tab == 4 spaces!\r
-\r
- ***************************************************************************\r
- * *\r
- * Having a problem? Start by reading the FAQ "My application does *\r
- * not run, what could be wrong?" *\r
- * *\r
- * http://www.FreeRTOS.org/FAQHelp.html *\r
- * *\r
- ***************************************************************************\r
-\r
- http://www.FreeRTOS.org - Documentation, books, training, latest versions,\r
- license and Real Time Engineers Ltd. contact details.\r
-\r
- http://www.FreeRTOS.org/plus - A selection of FreeRTOS ecosystem products,\r
- including FreeRTOS+Trace - an indispensable productivity tool, a DOS\r
- compatible FAT file system, and our tiny thread aware UDP/IP stack.\r
-\r
- http://www.OpenRTOS.com - Real Time Engineers ltd license FreeRTOS to High\r
- Integrity Systems to sell under the OpenRTOS brand. Low cost OpenRTOS\r
- licenses offer ticketed support, indemnification and middleware.\r
-\r
- http://www.SafeRTOS.com - High Integrity Systems also provide a safety\r
- engineered and independently SIL3 certified version for use in safety and\r
- mission critical applications that require provable dependability.\r
-\r
- 1 tab == 4 spaces!\r
-*/\r
+ * FreeRTOS Kernel V10.2.1\r
+ * Copyright (C) 2019 Amazon.com, Inc. or its affiliates. All Rights Reserved.\r
+ *\r
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of\r
+ * this software and associated documentation files (the "Software"), to deal in\r
+ * the Software without restriction, including without limitation the rights to\r
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of\r
+ * the Software, and to permit persons to whom the Software is furnished to do so,\r
+ * subject to the following conditions:\r
+ *\r
+ * The above copyright notice and this permission notice shall be included in all\r
+ * copies or substantial portions of the Software.\r
+ *\r
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\r
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS\r
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR\r
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER\r
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN\r
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.\r
+ *\r
+ * http://www.FreeRTOS.org\r
+ * http://aws.amazon.com/freertos\r
+ *\r
+ * 1 tab == 4 spaces!\r
+ */\r
\r
/*\r
* A sample implementation of pvPortMalloc() that allows the heap to be defined\r
\r
#undef MPU_WRAPPERS_INCLUDED_FROM_API_FILE\r
\r
+#if( configSUPPORT_DYNAMIC_ALLOCATION == 0 )\r
+ #error This file must not be used if configSUPPORT_DYNAMIC_ALLOCATION is 0\r
+#endif\r
+\r
/* Block sizes must not get too small. */\r
-#define heapMINIMUM_BLOCK_SIZE ( ( size_t ) ( uxHeapStructSize << 1 ) )\r
+#define heapMINIMUM_BLOCK_SIZE ( ( size_t ) ( xHeapStructSize << 1 ) )\r
\r
/* Assumes 8bit bytes! */\r
#define heapBITS_PER_BYTE ( ( size_t ) 8 )\r
\r
/* The size of the structure placed at the beginning of each allocated memory\r
block must by correctly byte aligned. */\r
-static const uint32_t uxHeapStructSize = ( ( sizeof ( BlockLink_t ) + ( portBYTE_ALIGNMENT - 1 ) ) & ~portBYTE_ALIGNMENT_MASK );\r
+static const size_t xHeapStructSize = ( sizeof( BlockLink_t ) + ( ( size_t ) ( portBYTE_ALIGNMENT - 1 ) ) ) & ~( ( size_t ) portBYTE_ALIGNMENT_MASK );\r
\r
/* Create a couple of list links to mark the start and end of the list. */\r
static BlockLink_t xStart, *pxEnd = NULL;\r
\r
-/* Keeps track of the number of free bytes remaining, but says nothing about\r
-fragmentation. */\r
-static size_t xFreeBytesRemaining = 0;\r
-static size_t xMinimumEverFreeBytesRemaining = 0;\r
+/* Keeps track of the number of calls to allocate and free memory as well as the\r
+number of free bytes remaining, but says nothing about fragmentation. */\r
+static size_t xFreeBytesRemaining = 0U;\r
+static size_t xMinimumEverFreeBytesRemaining = 0U;\r
+static size_t xNumberOfSuccessfulAllocations = 0;\r
+static size_t xNumberOfSuccessfulFrees = 0;\r
\r
/* Gets set to the top bit of an size_t type. When this bit in the xBlockSize\r
member of an BlockLink_t structure is set then the block belongs to the\r
structure in addition to the requested amount of bytes. */\r
if( xWantedSize > 0 )\r
{\r
- xWantedSize += uxHeapStructSize;\r
+ xWantedSize += xHeapStructSize;\r
\r
/* Ensure that blocks are always aligned to the required number\r
of bytes. */\r
{\r
/* Return the memory space pointed to - jumping over the\r
BlockLink_t structure at its start. */\r
- pvReturn = ( void * ) ( ( ( uint8_t * ) pxPreviousBlock->pxNextFreeBlock ) + uxHeapStructSize );\r
+ pvReturn = ( void * ) ( ( ( uint8_t * ) pxPreviousBlock->pxNextFreeBlock ) + xHeapStructSize );\r
\r
/* This block is being returned for use so must be taken out\r
of the list of free blocks. */\r
by the application and has no "next" block. */\r
pxBlock->xBlockSize |= xBlockAllocatedBit;\r
pxBlock->pxNextFreeBlock = NULL;\r
+ xNumberOfSuccessfulAllocations++;\r
}\r
else\r
{\r
{\r
/* The memory being freed will have an BlockLink_t structure immediately\r
before it. */\r
- puc -= uxHeapStructSize;\r
+ puc -= xHeapStructSize;\r
\r
/* This casting is to keep the compiler from issuing warnings. */\r
pxLink = ( void * ) puc;\r
xFreeBytesRemaining += pxLink->xBlockSize;\r
traceFREE( pv, pxLink->xBlockSize );\r
prvInsertBlockIntoFreeList( ( ( BlockLink_t * ) pxLink ) );\r
+ xNumberOfSuccessfulFrees++;\r
}\r
( void ) xTaskResumeAll();\r
}\r
void vPortDefineHeapRegions( const HeapRegion_t * const pxHeapRegions )\r
{\r
BlockLink_t *pxFirstFreeBlockInRegion = NULL, *pxPreviousFreeBlock;\r
-uint8_t *pucAlignedHeap;\r
+size_t xAlignedHeap;\r
size_t xTotalRegionSize, xTotalHeapSize = 0;\r
BaseType_t xDefinedRegions = 0;\r
-uint32_t ulAddress;\r
+size_t xAddress;\r
const HeapRegion_t *pxHeapRegion;\r
\r
/* Can only call once! */\r
xTotalRegionSize = pxHeapRegion->xSizeInBytes;\r
\r
/* Ensure the heap region starts on a correctly aligned boundary. */\r
- ulAddress = ( uint32_t ) pxHeapRegion->pucStartAddress;\r
- if( ( ulAddress & portBYTE_ALIGNMENT_MASK ) != 0 )\r
+ xAddress = ( size_t ) pxHeapRegion->pucStartAddress;\r
+ if( ( xAddress & portBYTE_ALIGNMENT_MASK ) != 0 )\r
{\r
- ulAddress += ( portBYTE_ALIGNMENT - 1 );\r
- ulAddress &= ~portBYTE_ALIGNMENT_MASK;\r
+ xAddress += ( portBYTE_ALIGNMENT - 1 );\r
+ xAddress &= ~portBYTE_ALIGNMENT_MASK;\r
\r
/* Adjust the size for the bytes lost to alignment. */\r
- xTotalRegionSize -= ulAddress - ( uint32_t ) pxHeapRegion->pucStartAddress;\r
+ xTotalRegionSize -= xAddress - ( size_t ) pxHeapRegion->pucStartAddress;\r
}\r
\r
- pucAlignedHeap = ( uint8_t * ) ulAddress;\r
+ xAlignedHeap = xAddress;\r
\r
/* Set xStart if it has not already been set. */\r
if( xDefinedRegions == 0 )\r
{\r
/* xStart is used to hold a pointer to the first item in the list of\r
free blocks. The void cast is used to prevent compiler warnings. */\r
- xStart.pxNextFreeBlock = ( BlockLink_t * ) pucAlignedHeap;\r
+ xStart.pxNextFreeBlock = ( BlockLink_t * ) xAlignedHeap;\r
xStart.xBlockSize = ( size_t ) 0;\r
}\r
else\r
configASSERT( pxEnd != NULL );\r
\r
/* Check blocks are passed in with increasing start addresses. */\r
- configASSERT( ulAddress > ( uint32_t ) pxEnd );\r
+ configASSERT( xAddress > ( size_t ) pxEnd );\r
}\r
\r
/* Remember the location of the end marker in the previous region, if\r
\r
/* pxEnd is used to mark the end of the list of free blocks and is\r
inserted at the end of the region space. */\r
- ulAddress = ( ( uint32_t ) pucAlignedHeap ) + xTotalRegionSize;\r
- ulAddress -= uxHeapStructSize;\r
- ulAddress &= ~portBYTE_ALIGNMENT_MASK;\r
- pxEnd = ( BlockLink_t * ) ulAddress;\r
+ xAddress = xAlignedHeap + xTotalRegionSize;\r
+ xAddress -= xHeapStructSize;\r
+ xAddress &= ~portBYTE_ALIGNMENT_MASK;\r
+ pxEnd = ( BlockLink_t * ) xAddress;\r
pxEnd->xBlockSize = 0;\r
pxEnd->pxNextFreeBlock = NULL;\r
\r
/* To start with there is a single free block in this region that is\r
sized to take up the entire heap region minus the space taken by the\r
free block structure. */\r
- pxFirstFreeBlockInRegion = ( BlockLink_t * ) pucAlignedHeap;\r
- pxFirstFreeBlockInRegion->xBlockSize = ulAddress - ( uint32_t ) pxFirstFreeBlockInRegion;\r
+ pxFirstFreeBlockInRegion = ( BlockLink_t * ) xAlignedHeap;\r
+ pxFirstFreeBlockInRegion->xBlockSize = xAddress - ( size_t ) pxFirstFreeBlockInRegion;\r
pxFirstFreeBlockInRegion->pxNextFreeBlock = pxEnd;\r
\r
/* If this is not the first region that makes up the entire heap space\r
/* Work out the position of the top bit in a size_t variable. */\r
xBlockAllocatedBit = ( ( size_t ) 1 ) << ( ( sizeof( size_t ) * heapBITS_PER_BYTE ) - 1 );\r
}\r
+/*-----------------------------------------------------------*/\r
+\r
+void vPortGetHeapStats( HeapStats_t *pxHeapStats )\r
+{\r
+BlockLink_t *pxBlock;\r
+size_t xBlocks = 0, xMaxSize = 0, xMinSize = portMAX_DELAY; /* portMAX_DELAY used as a portable way of getting the maximum value. */\r
+\r
+ vTaskSuspendAll();\r
+ {\r
+ pxBlock = xStart.pxNextFreeBlock;\r
+\r
+ /* pxBlock will be NULL if the heap has not been initialised. The heap\r
+ is initialised automatically when the first allocation is made. */\r
+ if( pxBlock != NULL )\r
+ {\r
+ do\r
+ {\r
+ /* Increment the number of blocks and record the largest block seen\r
+ so far. */\r
+ xBlocks++;\r
+\r
+ if( pxBlock->xBlockSize > xMaxSize )\r
+ {\r
+ xMaxSize = pxBlock->xBlockSize;\r
+ }\r
+\r
+ /* Heap five will have a zero sized block at the end of each\r
+ each region - the block is only used to link to the next\r
+ heap region so it not a real block. */\r
+ if( pxBlock->xBlockSize != 0 )\r
+ {\r
+ if( pxBlock->xBlockSize < xMinSize )\r
+ {\r
+ xMinSize = pxBlock->xBlockSize;\r
+ }\r
+ }\r
+\r
+ /* Move to the next block in the chain until the last block is\r
+ reached. */\r
+ pxBlock = pxBlock->pxNextFreeBlock;\r
+ } while( pxBlock != pxEnd );\r
+ }\r
+ }\r
+ xTaskResumeAll();\r
+\r
+ pxHeapStats->xSizeOfLargestFreeBlockInBytes = xMaxSize;\r
+ pxHeapStats->xSizeOfSmallestFreeBlockInBytes = xMinSize;\r
+ pxHeapStats->xNumberOfFreeBlocks = xBlocks;\r
+\r
+ taskENTER_CRITICAL();\r
+ {\r
+ pxHeapStats->xAvailableHeapSpaceInBytes = xFreeBytesRemaining;\r
+ pxHeapStats->xNumberOfSuccessfulAllocations = xNumberOfSuccessfulAllocations;\r
+ pxHeapStats->xNumberOfSuccessfulFrees = xNumberOfSuccessfulFrees;\r
+ pxHeapStats->xMinimumEverFreeBytesRemaining = xMinimumEverFreeBytesRemaining;\r
+ }\r
+ taskEXIT_CRITICAL();\r
+}\r
\r
projects / freertos / blobdiff