00001 /* 00002 FreeRTOS V6.0.0 - Copyright (C) 2009 Real Time Engineers Ltd. 00003 00004 *************************************************************************** 00005 * * 00006 * If you are: * 00007 * * 00008 * + New to FreeRTOS, * 00009 * + Wanting to learn FreeRTOS or multitasking in general quickly * 00010 * + Looking for basic training, * 00011 * + Wanting to improve your FreeRTOS skills and productivity * 00012 * * 00013 * then take a look at the FreeRTOS eBook * 00014 * * 00015 * "Using the FreeRTOS Real Time Kernel - a Practical Guide" * 00016 * http://www.FreeRTOS.org/Documentation * 00017 * * 00018 * A pdf reference manual is also available. Both are usually delivered * 00019 * to your inbox within 20 minutes to two hours when purchased between 8am * 00020 * and 8pm GMT (although please allow up to 24 hours in case of * 00021 * exceptional circumstances). Thank you for your support! * 00022 * * 00023 *************************************************************************** 00024 00025 This file is part of the FreeRTOS distribution. 00026 00027 FreeRTOS is free software; you can redistribute it and/or modify it under 00028 the terms of the GNU General Public License (version 2) as published by the 00029 Free Software Foundation AND MODIFIED BY the FreeRTOS exception. 00030 ***NOTE*** The exception to the GPL is included to allow you to distribute 00031 a combined work that includes FreeRTOS without being obliged to provide the 00032 source code for proprietary components outside of the FreeRTOS kernel. 00033 FreeRTOS is distributed in the hope that it will be useful, but WITHOUT 00034 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 00035 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for 00036 more details. You should have received a copy of the GNU General Public 00037 License and the FreeRTOS license exception along with FreeRTOS; if not it 00038 can be viewed here: http://www.freertos.org/a00114.html and also obtained 00039 by writing to Richard Barry, contact details for whom are available on the 00040 FreeRTOS WEB site. 00041 00042 1 tab == 4 spaces! 00043 00044 http://www.FreeRTOS.org - Documentation, latest information, license and 00045 contact details. 00046 00047 http://www.SafeRTOS.com - A version that is certified for use in safety 00048 critical systems. 00049 00050 http://www.OpenRTOS.com - Commercial support, development, porting, 00051 licensing and training services. 00052 */ 00053 00054 00055 /* 00056 * Implementation of pvPortMalloc() and vPortFree() that relies on the 00057 * compilers own malloc() and free() implementations. 00058 * 00059 * This file can only be used if the linker is configured to to generate 00060 * a heap memory area. 00061 * 00062 * See heap_2.c and heap_1.c for alternative implementations, and the memory 00063 * management pages of http://www.FreeRTOS.org for more information. 00064 */ 00065 00066 #include <stdlib.h> 00067 00068 /* Defining MPU_WRAPPERS_INCLUDED_FROM_API_FILE prevents task.h from redefining 00069 all the API functions to use the MPU wrappers. That should only be done when 00070 task.h is included from an application file. */ 00071 #define MPU_WRAPPERS_INCLUDED_FROM_API_FILE 00072 00073 #include "FreeRTOS.h" 00074 #include "task.h" 00075 00076 #undef MPU_WRAPPERS_INCLUDED_FROM_API_FILE 00077 00078 /*-----------------------------------------------------------*/ 00079 00080 void *pvPortMalloc( size_t xWantedSize ) 00081 { 00082 void *pvReturn; 00083 00084 vTaskSuspendAll(); 00085 { 00086 pvReturn = malloc( xWantedSize ); 00087 } 00088 xTaskResumeAll(); 00089 00090 #if( configUSE_MALLOC_FAILED_HOOK == 1 ) 00091 { 00092 if( pvReturn == NULL ) 00093 { 00094 extern void vApplicationMallocFailedHook( void ); 00095 vApplicationMallocFailedHook(); 00096 } 00097 } 00098 #endif 00099 00100 return pvReturn; 00101 } 00102 /*-----------------------------------------------------------*/ 00103 00104 void vPortFree( void *pv ) 00105 { 00106 if( pv ) 00107 { 00108 vTaskSuspendAll(); 00109 { 00110 free( pv ); 00111 } 00112 xTaskResumeAll(); 00113 } 00114 } 00115 00116 00117