+.\" $OpenBSD: nchan.ms,v 1.7 2001/01/29 01:58:17 niklas Exp $
+.\"
.\"
.\" Copyright (c) 1999 Markus Friedl. All rights reserved.
.\"
.\" 2. Redistributions in binary form must reproduce the above copyright
.\" notice, this list of conditions and the following disclaimer in the
.\" documentation and/or other materials provided with the distribution.
-.\" 3. All advertising materials mentioning features or use of this software
-.\" must display the following acknowledgement:
-.\" This product includes software developed by Markus Friedl.
-.\" 4. The name of the author may not be used to endorse or promote products
-.\" derived from this software without specific prior written permission.
.\"
.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
.\" IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
box invis "rcvd OCLOSE/" "-" with .w at last arrow.c
ellipse wid .9*ellipsewid ht .9*ellipseht at S4
arrow "start" "" from S1.w+(-0.5,0) to S1.w
+arrow from S2.ne to S4.sw
+box invis "rcvd OCLOSE/ " with .e at last arrow.c
+box invis " send IEOF" with .w at last arrow.c
.PE
.SH
Channel Output State Diagram
Notes
.PP
The input buffer is filled with data from the socket
-(the socket represents the local comsumer/producer of the
+(the socket represents the local consumer/producer of the
forwarded channel).
The data is then sent over the INPUT-end (transmit-end) of the channel to the
remote peer.
.PP
If the local protocol instance has forwarded all data on the
INPUT-end of the channel, it sends an IEOF message to the peer.
-If the peer receives the IEOF and has comsumed all
+If the peer receives the IEOF and has consumed all
data he replies with an OCLOSE.
When the local instance receives the OCLOSE
he considers the INPUT-half of the channel closed.
A channel can be deallocated by a protocol instance
if both the INPUT- and the OUTOUT-half on his
side of the channel are closed.
-Note that when an instance is unable to comsume the
+Note that when an instance is unable to consume the
received data, he is permitted to send an OCLOSE
before the matching IEOF is received.