51 lines
1.0 KiB
C
51 lines
1.0 KiB
C
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#include "memmgr.h"
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#include <string.h>
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extern void* pvPortMalloc(size_t xSize);
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extern void vPortFree(void* pv);
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extern size_t xPortGetFreeHeapSize(void);
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extern size_t xPortGetMinimumEverFreeHeapSize(void);
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void* malloc(size_t size) {
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return pvPortMalloc(size);
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}
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void free(void* ptr) {
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vPortFree(ptr);
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}
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void* realloc(void* ptr, size_t size) {
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if(size == 0) {
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vPortFree(ptr);
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return NULL;
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}
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void* p;
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p = pvPortMalloc(size);
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if(p) {
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// TODO implement secure realloc
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// insecure, but will do job in our case
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if(ptr != NULL) {
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memcpy(p, ptr, size);
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vPortFree(ptr);
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}
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}
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return p;
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}
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void* calloc(size_t count, size_t size) {
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void* ptr = pvPortMalloc(count * size);
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if(ptr) {
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// zero the memory
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memset(ptr, 0, count * size);
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}
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return ptr;
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}
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size_t memmgr_get_free_heap(void) {
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return xPortGetFreeHeapSize();
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}
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size_t memmgr_get_minimum_free_heap(void) {
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return xPortGetMinimumEverFreeHeapSize();
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}
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