heap_3.c 2.4 KB

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  1. /*
  2. * FreeRTOS Kernel V10.4.6
  3. * Copyright (C) 2021 Amazon.com, Inc. or its affiliates. All Rights Reserved.
  4. *
  5. * SPDX-License-Identifier: MIT
  6. *
  7. * Permission is hereby granted, free of charge, to any person obtaining a copy of
  8. * this software and associated documentation files (the "Software"), to deal in
  9. * the Software without restriction, including without limitation the rights to
  10. * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
  11. * the Software, and to permit persons to whom the Software is furnished to do so,
  12. * subject to the following conditions:
  13. *
  14. * The above copyright notice and this permission notice shall be included in all
  15. * copies or substantial portions of the Software.
  16. *
  17. * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  18. * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
  19. * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
  20. * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
  21. * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  22. * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  23. *
  24. * https://www.FreeRTOS.org
  25. * https://github.com/FreeRTOS
  26. *
  27. */
  28. /*
  29. * Implementation of pvPortMalloc() and vPortFree() that relies on the
  30. * compilers own malloc() and free() implementations.
  31. *
  32. * This file can only be used if the linker is configured to to generate
  33. * a heap memory area.
  34. *
  35. * See heap_1.c, heap_2.c and heap_4.c for alternative implementations, and the
  36. * memory management pages of https://www.FreeRTOS.org for more information.
  37. */
  38. #include <stdlib.h>
  39. #include "FreeRTOS.h"
  40. #include "task.h"
  41. #if ( configSUPPORT_DYNAMIC_ALLOCATION == 0 )
  42. #error This file must not be used if configSUPPORT_DYNAMIC_ALLOCATION is 0
  43. #endif
  44. /*-----------------------------------------------------------*/
  45. void * pvPortMalloc( size_t xWantedSize )
  46. {
  47. void * pvReturn;
  48. pvReturn = RT_KERNEL_MALLOC( xWantedSize );
  49. #if ( configUSE_MALLOC_FAILED_HOOK == 1 )
  50. {
  51. if( pvReturn == NULL )
  52. {
  53. extern void vApplicationMallocFailedHook( void );
  54. vApplicationMallocFailedHook();
  55. }
  56. }
  57. #endif
  58. return pvReturn;
  59. }
  60. /*-----------------------------------------------------------*/
  61. void vPortFree( void * pv )
  62. {
  63. if( pv )
  64. {
  65. RT_KERNEL_FREE( pv );
  66. }
  67. }