IMBENJI.NET/SweepStore
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Add file locking for concurrent access in header.dart

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ImBenji
2025-11-23 05:51:00 +00:00
parent 4295d119d7
commit 6e226f402b
1 changed files with 14 additions and 0 deletions
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14
dart/lib/header.dart
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@@ -215,50 +215,64 @@ class SweepstoreWorkerTicket {
// Offset 0 - 4 bytes // Offset 0 - 4 bytes
int get identifier { int get identifier {
_concurrencyHeader._header._file.lockSync(FileLock.shared, _baseOffset, _baseOffset + 4);
_concurrencyHeader._header._file.setPositionSync(_baseOffset); _concurrencyHeader._header._file.setPositionSync(_baseOffset);
int id = _concurrencyHeader._header._file.readIntSync(4); int id = _concurrencyHeader._header._file.readIntSync(4);
_concurrencyHeader._header._file.unlockSync(_baseOffset, _baseOffset + 4);
return id; return id;
} }
// Offset 4 - 4 bytes // Offset 4 - 4 bytes
int get workerHeartbeat { int get workerHeartbeat {
_concurrencyHeader._header._file.lockSync(FileLock.shared, _baseOffset + 4, _baseOffset + 8);
_concurrencyHeader._header._file.setPositionSync(_baseOffset + 4); _concurrencyHeader._header._file.setPositionSync(_baseOffset + 4);
int heartbeat = _concurrencyHeader._header._file.readIntSync(4); int heartbeat = _concurrencyHeader._header._file.readIntSync(4);
_concurrencyHeader._header._file.unlockSync(_baseOffset + 4, _baseOffset + 8);
return heartbeat; return heartbeat;
} }
// Offset 8 - 1 byte // Offset 8 - 1 byte
SweepstoreTicketState get ticketState { SweepstoreTicketState get ticketState {
_concurrencyHeader._header._file.lockSync(FileLock.shared, _baseOffset + 8, _baseOffset + 9);
_concurrencyHeader._header._file.setPositionSync(_baseOffset + 8); _concurrencyHeader._header._file.setPositionSync(_baseOffset + 8);
int stateValue = _concurrencyHeader._header._file.readIntSync(1); int stateValue = _concurrencyHeader._header._file.readIntSync(1);
_concurrencyHeader._header._file.unlockSync(_baseOffset + 8, _baseOffset + 9);
return SweepstoreTicketState.values[stateValue]; return SweepstoreTicketState.values[stateValue];
} }
// Offset 9 - 1 byte // Offset 9 - 1 byte
SweepstoreTicketOperation get ticketOperation { SweepstoreTicketOperation get ticketOperation {
_concurrencyHeader._header._file.lockSync(FileLock.shared, _baseOffset + 9, _baseOffset + 10);
_concurrencyHeader._header._file.setPositionSync(_baseOffset + 9); _concurrencyHeader._header._file.setPositionSync(_baseOffset + 9);
int operationValue = _concurrencyHeader._header._file.readIntSync(1); int operationValue = _concurrencyHeader._header._file.readIntSync(1);
_concurrencyHeader._header._file.unlockSync(_baseOffset + 9, _baseOffset + 10);
return SweepstoreTicketOperation.values[operationValue]; return SweepstoreTicketOperation.values[operationValue];
} }
// Offset 10 - 8 bytes // Offset 10 - 8 bytes
int get keyHash { int get keyHash {
_concurrencyHeader._header._file.lockSync(FileLock.shared, _baseOffset + 10, _baseOffset + 18);
_concurrencyHeader._header._file.setPositionSync(_baseOffset + 10); _concurrencyHeader._header._file.setPositionSync(_baseOffset + 10);
int hash = _concurrencyHeader._header._file.readIntSync(8); int hash = _concurrencyHeader._header._file.readIntSync(8);
_concurrencyHeader._header._file.unlockSync(_baseOffset + 10, _baseOffset + 18);
return hash; return hash;
} }
// Offset 18 - 8 bytes // Offset 18 - 8 bytes
SweepstorePointer get writePointer { SweepstorePointer get writePointer {
_concurrencyHeader._header._file.lockSync(FileLock.shared, _baseOffset + 18, _baseOffset + 26);
_concurrencyHeader._header._file.setPositionSync(_baseOffset + 18); _concurrencyHeader._header._file.setPositionSync(_baseOffset + 18);
int address = _concurrencyHeader._header._file.readIntSync(8); int address = _concurrencyHeader._header._file.readIntSync(8);
_concurrencyHeader._header._file.unlockSync(_baseOffset + 18, _baseOffset + 26);
return SweepstorePointer(address); return SweepstorePointer(address);
} }
// Offset 26 - 4 bytes // Offset 26 - 4 bytes
int get writeSize { int get writeSize {
_concurrencyHeader._header._file.lockSync(FileLock.shared, _baseOffset + 26, _baseOffset + 30);
_concurrencyHeader._header._file.setPositionSync(_baseOffset + 26); _concurrencyHeader._header._file.setPositionSync(_baseOffset + 26);
int size = _concurrencyHeader._header._file.readIntSync(4); int size = _concurrencyHeader._header._file.readIntSync(4);
_concurrencyHeader._header._file.unlockSync(_baseOffset + 26, _baseOffset + 30);
return size; return size;
} }