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map: make _insert_at() fail on a removed item

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You are only supposed to use _insert_new()/_remove() or _insert_at()
on the map, If we detect a _insert_at() to a removed item,
return an error because else we might corrupt the free list.

Update unit test accordingly.
This commit is contained in:
Wim Taymans 2021-10-25 16:11:56 +02:00
parent d5825b8551
commit c07f0ccb71
2 changed files with 3 additions and 29 deletions
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17
test/test-map.c
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@ -188,7 +188,6 @@ PWTEST(map_insert_at_free)
int data[3] = {1, 2, 3};
int new_data = 4;
int *ptr[3] = {&data[0], &data[1], &data[3]};
int *new_ptr = &new_data;
int idx[3];
int rc;
@ -225,21 +224,7 @@ PWTEST(map_insert_at_free)
}
rc = pw_map_insert_at(&map, item_idx, &new_data);
pwtest_neg_errno_ok(rc);
pwtest_ptr_eq(new_ptr, pw_map_lookup(&map, item_idx));
if (before_idx != SKIP && before_idx != item_idx) {
rc = pw_map_insert_at(&map, before_idx, &ptr[before_idx]);
pwtest_neg_errno_ok(rc);
pwtest_ptr_eq(&ptr[before_idx], pw_map_lookup(&map, before_idx));
}
if (after_idx != SKIP && after_idx != item_idx) {
rc = pw_map_insert_at(&map, after_idx, &ptr[after_idx]);
pwtest_neg_errno_ok(rc);
pwtest_ptr_eq(&ptr[after_idx], pw_map_lookup(&map, after_idx));
}
pwtest_neg_errno(rc, -EINVAL);
pw_map_clear(&map);
return PWTEST_PASS;