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[Wisp] Fix wisp poller dead lock in PUSH scheduling policy. #166

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Oct 16, 2023
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[Wisp] Fix wisp poller dead lock in PUSH scheduling policy. #166

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8 changes: 8 additions & 0 deletions src/java.base/linux/classes/com/alibaba/wisp/engine/WispEventPump.java
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Original file line number Diff line number Diff line change
Expand Up @@ -181,7 +181,11 @@ private void recordTaskByFD(int fd, WispTask task, int events) {
if (fd < LOW_FD_BOUND) {
getFd2TaskLow(events)[fd] = task;
} else {
WispCarrier carrier = WispCarrier.current();
final boolean isInCritical0 = carrier.isInCritical;
carrier.isInCritical = true;
getFd2TaskHigh(events).put(fd, task);
carrier.isInCritical = isInCritical0;
}
}

Expand All @@ -192,7 +196,11 @@ private WispTask removeTaskByFD(int fd, int events) {
task = fd2TaskLow[fd];
fd2TaskLow[fd] = null;
} else {
WispCarrier carrier = WispCarrier.current();
final boolean isInCritical0 = carrier.isInCritical;
carrier.isInCritical = true;
task = getFd2TaskHigh(events).remove(fd);
carrier.isInCritical = isInCritical0;
}
return task;
}
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