Difference between revisions of "How to use SystemView Heap Monitoring - Custom Heap"
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} |
} |
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| − | /********************************************************************* |
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| − | * |
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| − | * _MyRealloc |
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| − | * |
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| − | * Function description |
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| − | * Calls the stdlib realloc function and dispatches the SystemView HeapFree and HeapAlloc event. |
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| − | * |
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| − | * Parameters |
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| − | * p : Pointer to the memory to be reallocated |
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| − | * size : Size of the reallocated memory block |
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| − | * |
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| − | * Return value |
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| − | * Pointer to the allocated memory |
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| − | * |
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| − | */ |
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static void* _MyRealloc(void* p, size_t size) { |
static void* _MyRealloc(void* p, size_t size) { |
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void* rp = realloc(p, size); |
void* rp = realloc(p, size); |
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} |
} |
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| + | |||
| − | /********************************************************************* |
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| − | * |
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| − | * _MyFree |
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| − | * |
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| − | * Function description |
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| − | * Calls the stdlib free function and dispatches the SystemView HeapFree event. |
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| − | * |
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| − | * Parameters |
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| − | * p : Pointer to be released |
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| − | * |
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| − | * Return value |
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| − | * none |
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| − | * |
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| − | */ |
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static void _MyFree(void* p) { |
static void _MyFree(void* p) { |
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free(p); |
free(p); |
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Revision as of 15:31, 18 July 2023
This article assumes a working SystemView setup. To gain some more info on this subject, please consult either the main article (How to use SystemView Heap_Monitoring) or the SystemView documentation.
static void* _MyMalloc(size_t size) {
void* p = malloc(size);
// SystemView needs the real internal heap block size, not the amount requested by the user,
// hence the call to a helper function _GetAllocBlockSize for the currently selected heap type ('Basic')
SEGGER_SYSVIEW_HeapAlloc(__heap_start__, p, _GetAllocBlockSize(size));
return p;
}
static void* _MyRealloc(void* p, size_t size) {
void* rp = realloc(p, size);
SEGGER_SYSVIEW_HeapFree(__heap_start__, p);
// SystemView needs the real internal heap block size, not the amount requested by the user,
// hence the call to a helper function _GetAllocBlockSize for the currently selected heap type ('Basic')
SEGGER_SYSVIEW_HeapAlloc(__heap_start__, rp, _GetAllocBlockSize(size));
return rp;
}
static void _MyFree(void* p) {
free(p);
SEGGER_SYSVIEW_HeapFree(__heap_start__, p);
}
