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https://github.com/d0k3/GodMode9.git
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32 lines
724 B
C
32 lines
724 B
C
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#include "mymalloc.h"
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#include <stdlib.h>
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static size_t total_allocated = 0;
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void* my_malloc(size_t size) {
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void* ptr = (void*) malloc(sizeof(size_t) + size);
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if (ptr) total_allocated += size;
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if (ptr) (*(size_t*) ptr) = size;
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return ptr ? (((char*) ptr) + sizeof(size_t)) : NULL;
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}
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void my_free(void* ptr) {
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void* ptr_fix = (char*) ptr - sizeof(size_t);
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total_allocated -= *(size_t*) ptr_fix;
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free(ptr_fix);
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}
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size_t mem_allocated(void) {
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return total_allocated;
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}
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size_t my_malloc_test(void) {
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size_t add = 1024 * 1024;
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for (size_t s = add;; s += add) {
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void* ptr = (void*) malloc(s);
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if (!ptr) return s;
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free(ptr);
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}
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return 0; // unreachable
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}
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