INDCompletionQueue Interface
Use to indicate the completion of an outstanding request, for example, a Send or Receive request.
The INDAdapter::CreateCompletionQueue method returns this interface.
Members
The INDCompletionQueue interface inherits from INDOverlapped. INDCompletionQueue also defines the following types of members:
- Methods
Methods
The INDCompletionQueue interface defines the following methods.
| Method | Description |
|---|---|
| Resize | Modifies the number of results entries that a completion queue supports. |
| Notify | Requests notification for errors and completions. |
| GetResults | Retrieves the request completion results from the completion queue. |
Remarks
Outbound and inbound request queues of one or more endpoints can be bound to a single completion queue. Outbound and inbound request queues of a single endpoint can be bound to different completion queues. Completion queues operate in a similar manner to I/O completion ports, but specific to endpoint data transfer operations. Completion Queues can have completion notification events sent to I/O completion ports.
I/O requests do not use the traditional OVERLAPPED mechanisms, but do provide the user the ability to associate a similar structure, ND_RESULT, with each I/O request that is returned via the completion queue when that request completes. I/O requests can be issued and processed without any kernel transitions. Likewise, I/O completions can also be detected and processed without any kernel transitions.
Requirements
Product |
Microsoft Message Passing Interface (MS-MPI) |
Header |
Ndspi.h |
See Also
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Build date: 7/2/2010