void mydeallocate(void *ptr, char FILE[],int LINE,int type) {
if (!ptr) {
return;
}
// TODO: consider merging blocks once splitting blocks is implemented.
struct block_meta* block_ptr = get_block_ptr(ptr);
assert(block_ptr->free == 0);
block_ptr->free = 1;
}
void
free(char *ptr) {
if (!ptr) {
return;
}
// TODO: merge blocks
struct malloc_chunk* block_ptr = get_block_ptr(ptr);
block_ptr->is_free = 1;
}
void mm_free(void *ptr) {
if (ptr != NULL) {
struct metadata *curr = get_block_ptr(ptr);
curr->free = 1;
if (curr->prev && curr->prev->free) {
curr = coalesce(curr->prev);
}
if (curr->next && curr->next->free) {
coalesce(curr);
}
}
}
void *mm_realloc(void *ptr, size_t size) {
if (!ptr) {
return mm_malloc(size);
} else {
if (size == 0) {
return NULL;
}
struct metadata *block = get_block_ptr(ptr);
mm_free(ptr);
void *valid = mm_malloc(size);
if (!valid) {
return NULL;
}
if (size < block->size) {
memcpy(valid, ptr, size);
} else {
memcpy(valid, ptr, block->size);
}
return valid;
}
}
