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5bcae85e SL |
1 | // RUN: %clang_scudo %s -o %t |
2 | // RUN: SCUDO_OPTIONS=QuarantineSizeMb=1 %run %t 2>&1 | |
3 | ||
4 | // Tests that the quarantine prevents a chunk from being reused right away. | |
5 | // Also tests that a chunk will eventually become available again for | |
6 | // allocation when the recycling criteria has been met. | |
7 | ||
8 | #include <malloc.h> | |
9 | #include <stdlib.h> | |
10 | #include <string.h> | |
11 | ||
12 | int main(int argc, char **argv) | |
13 | { | |
14 | void *p, *old_p; | |
15 | size_t size = 1U << 16; | |
16 | ||
17 | // The delayed freelist will prevent a chunk from being available right away | |
18 | p = malloc(size); | |
19 | if (!p) | |
20 | return 1; | |
21 | old_p = p; | |
22 | free(p); | |
23 | p = malloc(size); | |
24 | if (!p) | |
25 | return 1; | |
26 | if (old_p == p) | |
27 | return 1; | |
28 | free(p); | |
29 | ||
30 | // Eventually the chunk should become available again | |
31 | bool found = false; | |
32 | for (int i = 0; i < 0x100 && found == false; i++) { | |
33 | p = malloc(size); | |
34 | if (!p) | |
35 | return 1; | |
36 | found = (p == old_p); | |
37 | free(p); | |
38 | } | |
39 | if (found == false) | |
40 | return 1; | |
41 | ||
42 | return 0; | |
43 | } |