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https://issues.apache.org/jira/browse/PROTON-2030?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16962234#comment-16962234
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ASF GitHub Bot commented on PROTON-2030:
----------------------------------------
astitcher commented on pull request #180: PROTON-2030 Use CLOCK_MONOTONIC in
proactors for pn_transport_tick
URL: https://github.com/apache/qpid-proton/pull/180#discussion_r340205929
##########
File path: c/src/proactor/win_iocp.c
##########
@@ -2145,8 +2132,8 @@ static void pconnection_tick(pconnection_t *pc) {
if(!stop_timer(pc->context.proactor->timer_queue, &pc->tick_timer)) {
// TODO: handle error
}
- uint64_t now = pn_i_now2();
- uint64_t next = pn_transport_tick(t, now);
+ int64_t now = pn_proactor_now_64();
+ int64_t next = pn_transport_tick(t, now);
if (next) {
if (!start_timer(pc->context.proactor->timer_queue, &pc->tick_timer,
tick_timer_cb, pc, next - now)) {
Review comment:
Comment as above in the epoll case - but note that here there may actually
be a bug as the subtraction is done using signed int64_t arithmetic which
doesn't have defined wraparound semantics.
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> Use CLOCK_MONOTONIC in proactors for pn_transport_tick
> ------------------------------------------------------
>
> Key: PROTON-2030
> URL: https://issues.apache.org/jira/browse/PROTON-2030
> Project: Qpid Proton
> Issue Type: Improvement
> Components: proton-c
> Affects Versions: proton-c-0.27.0
> Reporter: Jiri Daněk
> Priority: Major
>
> IOCP and epoll proactors are feeding wall clock time to pn_transport_tick. I
> tested (with epoll) that changing system clock breaks heartbeating.
> The libuv proactor does use monotonic already.
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