GetOutputPort

Get the notification port for buffers moving out from kernel to user space.

Declaration

CFMachPortRef ( *GetOutputPort)(
   IOStreamRef stream );

Parameters

stream

The IOStreamRef of the stream to operate on.

Return Value

A CFMachPortRef of the output notification port.

See Also

Input and output

GetInputPort

Get the notification port for buffers moving in from user to kernel space.

GetInputQueue

Get the shared memory queue for buffers moving in from user to kernel space.

GetOutputQueue

Get the shared memory queue for buffers moving out from kernel to user space.

SetOutputCallback

Set the callback function to be called when a new buffer is available from the kernel.