AcxStreamAddConnections function (acxstreams.h)
The AcxStreamAddConnections function adds explicit connections to a new ACX stream during EvtAcxCircuitCreateStream
Syntax
NTSTATUS AcxStreamAddConnections(
ACXSTREAM Stream,
PACX_CONNECTION Connections,
ULONG ConnectionsCount
);
Parameters
Stream
An existing ACXSTREAM stream object. For more information, see ACX - Summary of ACX Objects.
Connections
An ACX_CONNECTION structure that contains information about the connections to add the stream.
ConnectionsCount
The number of connections that are in the stream. This is a 1 based count.
Return value
Returns STATUS_SUCCESS if the call was successful. Otherwise, it returns an appropriate error code. For more information, see Using NTSTATUS Values.
Remarks
If the driver does not call AcxStreamAddConnections during EvtAcxCircuitCreateStream, the ACX framework will automatically assign connections between any ACXELEMENT objects that were added to the ACXSTREAM.
Example
Example usage is shown below.
//
// Explicitly connect the elements of the stream. Note that the driver doesn't
// need to perform this step when elements are connected in the same order
// as they were added to the stream.
//
const int numElements = 2;
const int numConnections = numElements + 1;
ACXSTREAM Stream;
ACX_CONNECTION connections[numConnections];
ACX_CONNECTION_INIT(&connections[0], Stream, Elements[ElementCount - 2]);
ACX_CONNECTION_INIT(&connections[1], Elements[ElementCount - 2], Elements[ElementCount - 1]);
ACX_CONNECTION_INIT(&connections[2], Elements[ElementCount - 1], Stream);
//
// Add the connections linking stream to elements.
//
status = AcxStreamAddConnections(Stream, connections, SIZEOF_ARRAY(connections));
ACX requirements
Minimum ACX version: 1.0
For more information about ACX versions, see ACX version overview.
Requirements
| Requirement | Value |
|---|---|
| Header | acxstreams.h |
| IRQL | PASSIVE_LEVEL |