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package lock
// Defined global lock values.
const (
// Ensures only a single instance is performing migrations at a time.
GlobalMigrate = uint32(0x1337) // 4919
// Currently unused.
GlobalEngineProcessing = uint32(0x1234) // 4660
// Ensures only a single instance is sending messages,
// this includes out-of-transaction processes.
GlobalMessageSending = uint32(0x1330) // 4912
// Currently unused.
RegionalEngineProcessing = uint32(0x1342) // 4930
// Currently unused.
ModularEngineProcessing = uint32(0x1347) // 4935
// A shared lock is grabbed by the application, and exclusive
// lock during the final sync as a stop-the-world lock for the
// atomic DB switch.
GlobalSwitchOver = uint32(0x1111) // 4369
// Used exclusively by engine instances to elect a leader.
//
// Only the instance and connection with this lock is allowed
// to perform trigger updates and synchronization.
//
// It must be acquired before the global switchover lock.
GlobalSwitchOverExec = uint32(0x1112) // 4370
)
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