void ReleaseLocks()
{
if (!RecordOrReplayCall(MessageType.ReleaseLock, out var opid, out var clock, out var instanceId))
{
foreach (var key in LockSet)
{
var destination = key.Locate(process);
var message = new ReleaseLock()
{
Key = key, LockOpid = LockOpid
};
message.Opid = opid;
message.Clock = clock;
message.Parent = this.Opid;
process.Send(destination, message);
}
}
}
private bool Entering(ulong opid, TKey localkey, QueuedMessage payload, Stopwatch stopwatch, MessageType messageType, ulong parent)
{
process.LockTracer?.Invoke($"p{process.ProcessId:D3} {payload.GetPartitionKey(process)} Enter {payload.Opid}");
var timestamp = process.NextOpid;
switch (messageType)
{
case (MessageType.RequestLocal):
case (MessageType.ForkLocal):
var result = payload.Execute <TKey>(process, opid);
if (messageType == MessageType.RequestLocal)
{
process.Send(process.GetOrigin(opid), new RespondToLocal()
{
Opid = opid, Parent = parent, Result = result
});
}
process.Telemetry?.OnApplicationEvent(
processId: process.ProcessId,
id: opid.ToString(),
name: payload.Payload.ToString(),
parent: parent.ToString(),
opSide: OperationSide.Callee,
opType: OperationType.Local,
duration: stopwatch.Elapsed.TotalMilliseconds
);
process.LockTracer?.Invoke($"p{process.ProcessId:D3} {payload.GetPartitionKey(process)} Exit {payload.Opid}");
return(false); // in and out of the lock
case (MessageType.PerformEvent):
case (MessageType.ForkEvent):
{
var req = (PerformEvent)payload;
var effects = req.GetEffects(process);
// apply the event to all the affected states
req.Execute <TKey>(process, opid);
// if we are not the last partition with an effect, forward to next
if (req.Position < effects.Count - 1)
{
var nextReq = req.NextMessage(timestamp);
var destination = nextReq.GetCurrent(process).Locate(process);
process.Send(destination, nextReq);
return(true); // stays in the lock
}
// if we are the last partition
else
{
// if we are not running in locked orchestration,
// release all previously locked partitions now
if (!payload.LockedByCaller && effects.Count > 1)
{
for (int i = 0; i < effects.Count - 1; i++)
{
var key = effects[i].UntypedKey;
var destination = key.Locate(process);
var message = new ReleaseLock()
{
Key = key, LockOpid = req.Opid
};
message.Clock = timestamp;
message.Parent = req.Parent;
message.Opid = opid;
process.Send(destination, message);
}
}
// return ack to orchestration
if (messageType == MessageType.PerformEvent)
{
process.Send(process.GetOrigin(opid), new AckEvent()
{
Opid = opid, Parent = parent, Clock = timestamp
});
}
process.Telemetry?.OnApplicationEvent(
processId: process.ProcessId,
id: opid.ToString(),
name: payload.Payload.ToString(),
parent: parent.ToString(),
opSide: OperationSide.Callee,
opType: OperationType.Event,
duration: stopwatch.Elapsed.TotalMilliseconds
);
process.LockTracer?.Invoke($"p{process.ProcessId:D3} {payload.GetPartitionKey(process)} Exit {payload.Opid}");
return(false); // in and out of the lock
}
}
case (MessageType.AcquireLock):
{
var req = (AcquireLock)payload;
// if we are not the last partition to lock send next lock message
if (req.Position < req.LockSet.Count - 1)
{
var nextReq = req.NextMessage(timestamp);
var destination = nextReq.LockSet[nextReq.Position].Locate(process);
process.Send(destination, nextReq);
}
// if we are the last partition to lock return ack to orchestration
else
{
process.Send(process.GetOrigin(opid), new GrantLock()
{
Opid = opid, Parent = parent, Clock = timestamp
});
}
return(true); // stays in the lock
}
default:
throw new InvalidOperationException("unhandled case for messageType");
}
}