Nils O. Selåsdal
51 lines
1.2 KiB
C
51 lines
1.2 KiB
C
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#include <string.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include "lalloc.h"
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void debug_alloc(const LAlloc *allocator)
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{
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puts("--debug start--");
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for (LBlockHeader *b = allocator->heap_start; b; b = lblock_from_offset(allocator, b->next)) {
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printf("Block size %u free %d prev %u next %u \n", lblock_size(b), lblock_is_free(b), b->prev, b->next);
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}
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puts("--debug end--");
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}
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[[gnu::aligned(16)]] char buff[1023];
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int main(void)
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{
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printf("bh size %zu\n", sizeof(LBlockHeader));
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#define SZ 64
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LAlloc a;
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char *ptrs[SZ];
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lalloc_init(&a, buff, sizeof(buff));
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debug_alloc(&a);
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ptrs[0] = lalloc(&a, 1023 - 16 * 2 - 144);
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ptrs[1] = lalloc(&a, 80);
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ptrs[2] = lalloc(&a, 32);
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debug_alloc(&a);
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lfree(&a, ptrs[0]);
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ptrs[3] = lalloc(&a, 12);
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ptrs[4] = lalloc(&a, 12);
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debug_alloc(&a);
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lfree(&a, ptrs[1]);
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lfree(&a, ptrs[2]);
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lfree(&a, ptrs[3]);
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lfree(&a, ptrs[4]);
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for (int i = 0; i < SZ; i++) {
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ptrs[i] = lalloc(&a, rand() % 256 + 1);
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}
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for (int i = 0; i < SZ; i++) {
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// if (rand() % 2 == 0) {
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lfree(&a, ptrs[i]);
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// }
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}
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debug_alloc(&a);
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}
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