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Fix nback limit to detect full ring

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This commit is contained in:
Rodrigo Arias 2022-10-07 12:43:52 +02:00
parent 239deed26d
commit 2497e71f81
1 changed files with 3 additions and 1 deletions
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4
src/sort.c
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@ -107,11 +107,13 @@ find_destination(struct ring *r, uint64_t clock)
/* If there is no event with a lower clock and we haven't fill the ring
* yet, then we are at the beginning and no other event has be emitted
* before the sort window. So simply return the first marker. */
if (nback < (ssize_t) max_look_back) {
if (nback < (ssize_t) r->size - 1) {
if (r->head != 0)
die("ring head expected to be 0\n");
if (r->tail >= r->size - 1)
die("ring tail=%d expected to be less than %d\n", r->tail, r->size - 1);
dbg("starting of ring with nback=%ld\n", nback);
return r->head;
}