Specifications

Interfaces Page 18
Transmit successful - a frame successfully left the local
transmitter.
Transmit failed
- the local transmitter could not transmit the
frame.
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 send a frame.
Input-buffer
- the buffer that was supplied in the Transmit
function.
3.1.6 Receive
Funct ion:
Queues a buffer to receive a frame. On multiaccess or concurrent
maintenance channels, the receive is filtered according to the
id-list established in the Open function.
Inputs:
Port-id
- a port
identification assigned by the Open function.
Output-buffer
- a descriptor of a buffer to contain
the received
frame.
Outputs:
Return-code
- the status of the request. One of:
Request accepted
- if a message is received for the specified
port, the data link will put it into the buffer. Notification
of completion
is via the Receive-poll function.
No resources
- the data link does not have sufficient
resources to queue a receive for this port.
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.