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mdbx: refine freelist_list() to avoid coverity warnings.

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Change-Id: I38eee44e4ca926e7d11ef5e3f7f3ce2e92f71259
This commit is contained in:
Leo Yuriev 2017-07-26 16:20:40 +03:00
parent a78edd314e
commit fb9d7a4471
1 changed files with 10 additions and 2 deletions
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12
src/mdbx.c
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@ -3066,7 +3066,10 @@ again_on_freelist_change:
/* LY: note that freeDB cleanup is not needed. */
++cleanup_reclaimed_pos;
}
mdbx_tassert(txn, txn->mt_lifo_reclaimed != NULL);
head_id = txn->mt_lifo_reclaimed[refill_reclaimed_pos];
} else {
mdbx_tassert(txn, txn->mt_lifo_reclaimed == NULL);
}
/* (Re)write {key = head_id, IDL length = head_room} */
@ -3132,18 +3135,23 @@ again_on_freelist_change:
size_t rpl_left = env->me_reclaimed_pglist[0];
pgno_t *rpl_end = env->me_reclaimed_pglist + rpl_left;
if (!lifo) {
if (txn->mt_lifo_reclaimed == 0) {
mdbx_tassert(txn, lifo == 0);
rc = mdbx_cursor_first(&mc, &key, &data);
if (unlikely(rc))
goto bailout;
} else {
mdbx_tassert(txn, lifo != 0);
}
while (1) {
txnid_t id;
if (!lifo) {
if (txn->mt_lifo_reclaimed == 0) {
mdbx_tassert(txn, lifo == 0);
id = *(txnid_t *)key.iov_base;
mdbx_tassert(txn, id <= env->me_last_reclaimed);
} else {
mdbx_tassert(txn, lifo != 0);
mdbx_tassert(txn,
refill_reclaimed_pos > 0 &&
refill_reclaimed_pos <= txn->mt_lifo_reclaimed[0]);