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Refactor concurrency handling to utilize SweepstoreWorkerTicketSnapshot for improved state management and add snapshot method in header.dart

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ImBenji
2025-11-23 20:00:50 +00:00
parent 809d79cfc8
commit 580f07c483
2 changed files with 64 additions and 7 deletions
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17
dart/lib/concurrency.dart
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@@ -72,11 +72,13 @@ void spawnTicket(RandomAccessFile file, {
continue;
}
int identifier = ticket.identifier;
SweepstoreWorkerTicketSnapshot ticketSnapshot = ticket.snapshot();
int identifier = ticketSnapshot.identifier;
bool identifier_unassigned = identifier == 0;
bool stale_heartbeat = (DateTime.now().millisecondsSinceEpoch32() - ticket.workerHeartbeat) > 2000;
bool is_free = ticket.ticketState == SweepstoreTicketState.FREE;
bool stale_heartbeat = (DateTime.now().millisecondsSinceEpoch32() - ticketSnapshot.workerHeartbeat) > 2000;
bool is_free = ticketSnapshot.ticketState == SweepstoreTicketState.FREE;
if (identifier_unassigned && stale_heartbeat && is_free) {
ticket.write(
@@ -92,16 +94,17 @@ void spawnTicket(RandomAccessFile file, {
}
preciseSleep(Duration(milliseconds: 1));
preciseSleep(Duration(milliseconds: 2));
// Ensure we still own the ticket - if not, reset and try again
if (ticketIndex != null) {
SweepstoreWorkerTicket ticket = concurrencyHeader[ticketIndex];
if (ticket.identifier != newIdentifier) {
SweepstoreWorkerTicketSnapshot verifySnapshot = concurrencyHeader[ticketIndex].snapshot();
if (verifySnapshot.identifier != newIdentifier) {
log("Lost ticket $ticketIndex, retrying...");
ticketIndex = null;
} else {
return ticket;
return concurrencyHeader[ticketIndex];
}
}