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Moderated Linux IPC (interprocess communication facilities)

"kc4ums"
 

I was wondering if gMFSK IPC has a message queue/shared memory for the
real time receive data besides just the logging end of it. Also would
like to find out how to tell which message queue id/shared memory is in
use by gMFSK.

I can use the ipcs command to show the queues and shared memory but how
do you tell which one is the right one.

I Would like to learn more ..
Anyone know of a good website that could help me out on the Sys V IPC?

73,
Tim-KC4UMS
w1hkj
 

¿ªÔÆÌåÓý

Tim,

Download the fl_logbook application tarball from the web page.? Then open up the source file ipcdata.cpp for info on the ipc format and identity for the gmfsk ipc output.? The messae key is 1238, which is hex 04D6.? On my machine with gmfsk and fl_logbook running the ipcs command shows the following:

------ Message Queues --------
key??????? msqid????? owner????? perms????? used-bytes?? messages???
0x000004d6 0????????? dave?????? 666??????? 0??????????? 0??????????

Try the following web site for starters:



For a good reference book on Linux Programming I recommend

Beginning Linux Programming by Neil Matthew & Richard Stones - Wrox Press

It might be out of print, but available on Amazon used books.? My copy is starting to get page worn from all the use I give it.

Hope this helps some.

Dave (hkj)
"dave cooper"
 

Gotta admit, awfull glad we have you to answer that one Dave.
Now another lesson to learn.
Thanks Dave(ve3ixi)

--- In linuxham@..., w1hkj <w1hkj@...> wrote:

Tim,

Download the fl_logbook application tarball from the www.w1hkj.com web
page. Then open up the source file ipcdata.cpp for info on the ipc
format and identity for the gmfsk ipc output. The messae key is 1238,
which is hex 04D6. On my machine with gmfsk and fl_logbook running the
ipcs command shows the following:

------ Message Queues --------
key msqid owner perms used-bytes messages
0x000004d6 0 dave 666 0 0

Try the following web site for starters:



For a good reference book on Linux Programming I recommend

Beginning Linux Programming by Neil Matthew & Richard Stones - Wrox
Press

It might be out of print, but available on Amazon used books. My copy
is starting to get page worn from all the use I give it.

Hope this helps some.

Dave (hkj)
"Tim Gray"
 

¿ªÔÆÌåÓý

Thanks Dave,
?
I tried using the Perl IPC module and I can make my on message queue and read from it but could not connect to the gMFSK message.? Could not work on it long the wife made me get off the computer hi hi..
Will try again tonight.? I am also going to order the book you suggested from Amazon.
?
I appreciate the work you do for us hams ...
?
73
Tim-KC4UMS

----- Original Message -----
From: w1hkj
Sent: Thursday, February 23, 2006 4:18 PM
Subject: Re: [linuxham] Linux IPC (interprocess communication facilities)

Tim,

Download the fl_logbook application tarball from the web page.? Then open up the source file ipcdata.cpp for info on the ipc format and identity for the gmfsk ipc output.? The messae key is 1238, which is hex 04D6.? On my machine with gmfsk and fl_logbook running the ipcs command shows the following:

------ Message Queues --------
key??????? msqid????? owner????? perms????? used-bytes?? messages???
0x000004d6 0????????? dave?????? 666??????? 0??????????? 0??????????

Try the following web site for starters:



For a good reference book on Linux Programming I recommend

Beginning Linux Programming by Neil Matthew & Richard Stones - Wrox Press

It might be out of print, but available on Amazon used books.? My copy is starting to get page worn from all the use I give it.

Hope this helps some.

Dave (hkj)

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