DsspOperationQueuingPolicy Enumeration
Microsoft Robotics Class Reference
Operation policy for queuing requests on service ports
Namespace: Microsoft.Dss.ServiceModel.Dssp
Assembly: Microsoft.Dss.Base (in Microsoft.Dss.Base.dll) Version: 4.0.261.0 (4.0.261.0)
Syntax
[FlagsAttribute]
[XmlTypeAttribute(Namespace = "https://schemas.microsoft.com/xw/2004/10/dssp.html")]
[DataContractAttribute(Namespace = "https://schemas.microsoft.com/xw/2004/10/dssp.html")]
[XmlRootAttribute("DsspOperationQueuingPolicy", Namespace = "https://schemas.microsoft.com/xw/2004/10/dssp.html",
IsNullable = false)]
public enum DsspOperationQueuingPolicy
Members
| Member name | Value | Description | |
|---|---|---|---|
| None | 0 | No policy | |
| Default | 7 | Operations are queued with a default upper bound on queue depth and discard with fault | |
| ConstrainDepth | 1 | Policy is enforced using an upper bound on queue depth | |
| DiscardWithFault | 2 | Fault responses will automatically be sent, when the upper bound is reached | |
| IgnoreWhenReceiversAttached | 4 | If there are no receivers attached to the port, no queueing policy is applied (no depth limit is enforced) |
Remarks
Default behavior is to queue inbound operations with no constraints. If no handler is attached for a given operation type this can lead to memory resource leaks, and the port queues growing without bounds. The policy is used to specify runtime behavior, so queue depths can be constrained, and replies can automatically be sent without ever invoking service code