diff options
Diffstat (limited to 'freertos/Source/portable/MemMang/heap_1.c')
| -rw-r--r-- | freertos/Source/portable/MemMang/heap_1.c | 188 |
1 files changed, 0 insertions, 188 deletions
diff --git a/freertos/Source/portable/MemMang/heap_1.c b/freertos/Source/portable/MemMang/heap_1.c deleted file mode 100644 index 6dfb3cb..0000000 --- a/freertos/Source/portable/MemMang/heap_1.c +++ /dev/null @@ -1,188 +0,0 @@ -/* - FreeRTOS V9.0.0 - Copyright (C) 2016 Real Time Engineers Ltd. - All rights reserved - - VISIT http://www.FreeRTOS.org TO ENSURE YOU ARE USING THE LATEST VERSION. - - This file is part of the FreeRTOS distribution. - - FreeRTOS is free software; you can redistribute it and/or modify it under - the terms of the GNU General Public License (version 2) as published by the - Free Software Foundation >>>> AND MODIFIED BY <<<< the FreeRTOS exception. - - *************************************************************************** - >>! NOTE: The modification to the GPL is included to allow you to !<< - >>! distribute a combined work that includes FreeRTOS without being !<< - >>! obliged to provide the source code for proprietary components !<< - >>! outside of the FreeRTOS kernel. !<< - *************************************************************************** - - FreeRTOS is distributed in the hope that it will be useful, but WITHOUT ANY - WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS - FOR A PARTICULAR PURPOSE. Full license text is available on the following - link: http://www.freertos.org/a00114.html - - *************************************************************************** - * * - * FreeRTOS provides completely free yet professionally developed, * - * robust, strictly quality controlled, supported, and cross * - * platform software that is more than just the market leader, it * - * is the industry's de facto standard. * - * * - * Help yourself get started quickly while simultaneously helping * - * to support the FreeRTOS project by purchasing a FreeRTOS * - * tutorial book, reference manual, or both: * - * http://www.FreeRTOS.org/Documentation * - * * - *************************************************************************** - - http://www.FreeRTOS.org/FAQHelp.html - Having a problem? Start by reading - the FAQ page "My application does not run, what could be wrong?". Have you - defined configASSERT()? - - http://www.FreeRTOS.org/support - In return for receiving this top quality - embedded software for free we request you assist our global community by - participating in the support forum. - - http://www.FreeRTOS.org/training - Investing in training allows your team to - be as productive as possible as early as possible. Now you can receive - FreeRTOS training directly from Richard Barry, CEO of Real Time Engineers - Ltd, and the world's leading authority on the world's leading RTOS. - - http://www.FreeRTOS.org/plus - A selection of FreeRTOS ecosystem products, - including FreeRTOS+Trace - an indispensable productivity tool, a DOS - compatible FAT file system, and our tiny thread aware UDP/IP stack. - - http://www.FreeRTOS.org/labs - Where new FreeRTOS products go to incubate. - Come and try FreeRTOS+TCP, our new open source TCP/IP stack for FreeRTOS. - - http://www.OpenRTOS.com - Real Time Engineers ltd. license FreeRTOS to High - Integrity Systems ltd. to sell under the OpenRTOS brand. Low cost OpenRTOS - licenses offer ticketed support, indemnification and commercial middleware. - - http://www.SafeRTOS.com - High Integrity Systems also provide a safety - engineered and independently SIL3 certified version for use in safety and - mission critical applications that require provable dependability. - - 1 tab == 4 spaces! -*/ - - -/* - * The simplest possible implementation of pvPortMalloc(). Note that this - * implementation does NOT allow allocated memory to be freed again. - * - * See heap_2.c, heap_3.c and heap_4.c for alternative implementations, and the - * memory management pages of http://www.FreeRTOS.org for more information. - */ -#include <stdlib.h> - -/* Defining MPU_WRAPPERS_INCLUDED_FROM_API_FILE prevents task.h from redefining -all the API functions to use the MPU wrappers. That should only be done when -task.h is included from an application file. */ -#define MPU_WRAPPERS_INCLUDED_FROM_API_FILE - -#include "FreeRTOS.h" -#include "task.h" - -#undef MPU_WRAPPERS_INCLUDED_FROM_API_FILE - -#if( configSUPPORT_DYNAMIC_ALLOCATION == 0 ) - #error This file must not be used if configSUPPORT_DYNAMIC_ALLOCATION is 0 -#endif - -/* A few bytes might be lost to byte aligning the heap start address. */ -#define configADJUSTED_HEAP_SIZE ( configTOTAL_HEAP_SIZE - portBYTE_ALIGNMENT ) - -/* Allocate the memory for the heap. */ -/* Allocate the memory for the heap. */ -#if( configAPPLICATION_ALLOCATED_HEAP == 1 ) - /* The application writer has already defined the array used for the RTOS - heap - probably so it can be placed in a special segment or address. */ - extern uint8_t ucHeap[ configTOTAL_HEAP_SIZE ]; -#else - static uint8_t ucHeap[ configTOTAL_HEAP_SIZE ]; -#endif /* configAPPLICATION_ALLOCATED_HEAP */ - -static size_t xNextFreeByte = ( size_t ) 0; - -/*-----------------------------------------------------------*/ - -void *pvPortMalloc( size_t xWantedSize ) -{ -void *pvReturn = NULL; -static uint8_t *pucAlignedHeap = NULL; - - /* Ensure that blocks are always aligned to the required number of bytes. */ - #if( portBYTE_ALIGNMENT != 1 ) - { - if( xWantedSize & portBYTE_ALIGNMENT_MASK ) - { - /* Byte alignment required. */ - xWantedSize += ( portBYTE_ALIGNMENT - ( xWantedSize & portBYTE_ALIGNMENT_MASK ) ); - } - } - #endif - - vTaskSuspendAll(); - { - if( pucAlignedHeap == NULL ) - { - /* Ensure the heap starts on a correctly aligned boundary. */ - pucAlignedHeap = ( uint8_t * ) ( ( ( portPOINTER_SIZE_TYPE ) &ucHeap[ portBYTE_ALIGNMENT ] ) & ( ~( ( portPOINTER_SIZE_TYPE ) portBYTE_ALIGNMENT_MASK ) ) ); - } - - /* Check there is enough room left for the allocation. */ - if( ( ( xNextFreeByte + xWantedSize ) < configADJUSTED_HEAP_SIZE ) && - ( ( xNextFreeByte + xWantedSize ) > xNextFreeByte ) )/* Check for overflow. */ - { - /* Return the next free byte then increment the index past this - block. */ - pvReturn = pucAlignedHeap + xNextFreeByte; - xNextFreeByte += xWantedSize; - } - - traceMALLOC( pvReturn, xWantedSize ); - } - ( void ) xTaskResumeAll(); - - #if( configUSE_MALLOC_FAILED_HOOK == 1 ) - { - if( pvReturn == NULL ) - { - extern void vApplicationMallocFailedHook( void ); - vApplicationMallocFailedHook(); - } - } - #endif - - return pvReturn; -} -/*-----------------------------------------------------------*/ - -void vPortFree( void *pv ) -{ - /* Memory cannot be freed using this scheme. See heap_2.c, heap_3.c and - heap_4.c for alternative implementations, and the memory management pages of - http://www.FreeRTOS.org for more information. */ - ( void ) pv; - - /* Force an assert as it is invalid to call this function. */ - configASSERT( pv == NULL ); -} -/*-----------------------------------------------------------*/ - -void vPortInitialiseBlocks( void ) -{ - /* Only required when static memory is not cleared. */ - xNextFreeByte = ( size_t ) 0; -} -/*-----------------------------------------------------------*/ - -size_t xPortGetFreeHeapSize( void ) -{ - return ( configADJUSTED_HEAP_SIZE - xNextFreeByte ); -} - - - |