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Fix monitor response time (#2635)

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* Sleep only when there are no upcoming events.
* Add constraint to prevent starvation.
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JC-comp 2024-02-21 03:45:03 +08:00 committed by GitHub
parent 0404ee2e37
commit 333ddbefea
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1 changed files with 9 additions and 2 deletions
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11
src/monitor.d
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@ -488,7 +488,9 @@ final class Monitor {
while (true) {
bool hasNotification = false;
while (true) {
int sleep_counter = 0;
// Batch events up to 5 seconds
while (sleep_counter < 5) {
int ret = poll(&fds, 1, 0);
if (ret == -1) throw new MonitorException("poll failed");
else if (ret == 0) break; // no events available
@ -621,7 +623,12 @@ final class Monitor {
skip:
i += inotify_event.sizeof + event.len;
}
Thread.sleep(dur!"seconds"(1));
// Sleep for one second to prevent missing fast-changing events.
if (poll(&fds, 1, 0) == 0) {
sleep_counter += 1;
Thread.sleep(dur!"seconds"(1));
}
}
if (!hasNotification) break;
processChanges();