Specifications

Interfaces
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Function:
Check for the completion of a receive request. The data link
gives received frames to the user in the order in which they
arrived.
Inputs:
Port-id
- a port identification assigned by the Open function.
Outputs:
Return-code
- the status of the receive request. One of:
Not complete
- no outstanding receive for this port is done.
None outstanding
- there are no outstanding receives for thi:
port.
Receive successful
- a frame was successfully received into
the buffer.
Receive with overrun
- a frame was successfully received, but
had to be truncated to fit into the buffer.
Receive aborted
- the user cancelled the receive request witl-
the Receive-abort function.
Unrecognized port
- there is no open port with the specified
identification.
Channel in wrong state
- the channel is not in a state where
it can receive a frame.
Destination-address
- the address to which the received frame was
addressed. Applicable only on multiaccess channels.
Source-address
- the address from which the received frame came.
Applicable only on multiaccess channels.
Protocol-type
- the protocol type from the received frame.
Applicable only on concurrent maintenance channels.
Output-buffer
- the received data.
Function:
Aborts all outstanding receive requests.
The buffers are returnee
via the Receive-poll function. They may be returned as aborted
or