[Info-vax] Network mailbox

[Snowshoe]

On 10/28/2011 1:34 PM, VAXman- @SendSpamHere.ORG wrote:
> In article<j8ejh2$js5$1 at speranza.aioe.org>, Snowshoe<no at spam.please>  writes:
>> On 10/28/2011 11:21 AM, VAXman- @SendSpamHere.ORG wrote:
>>
>>> Why are you using RMS to read and write the mailbox?  The mailbox driver
>>> has special function modifiers (ie. IO$M_NOW) that can be used with $QIO
>>> IO$_READVBLK and IO$_WRITEVBLK when the target device is a mailbox.  The
>>> $QIO IO$_READVBLK would normally wait and only complete when there's been
>>> a message deposited into the mailbox.  This you apparently have correct.
>>>
>>> I'd lose the $PUT and use IO$_WRITEVBLK|IO$M_NOW.  I think you can still
>>> use the $OPEN but you'll probably want to specify UFO and then, there is
>>> no need for the $CONNECT.  Just issues $QIO IO$_WRITEVBLK|IO$M_NOW to the
>>> channel returned in the FAB's STV.
>>>
>>
>> I would be more than glad to do that -- if there was a way to do so over
>> the network.
>>
>> Right now there are two processes on one system (an old VAX) that
>> communicate with each other via Mailboxes. My task is to move one
>> process to a new system and communicate with the second process's
>> mailboxes over the network (DECnet).  I am creating an additional
>> process that transfers data from clones of the mailboxes on the new
>> system over the network to the old system.
>
> D'oh.  There it is... a node spec in the FNM.
>
> So, if you've opened a DECnet connection to a remote mailbox, why are
> you not using $PUTs and $GETs on the local side?  You're using DECnet
> so you should see record I/O.

I am using $GET and $PUT for the DECnet connection. I suspect I am using 
it incorrectly somehow.  The snippet of code reads data from a local 
mailbox and writes it (using $PUT) a remote mailbox at the other end of 
a DECnet link.

Another piece of code gets messages (using $GET) from a remote mailbox 
via DECnet and writes it to a local mailbox.