TCP/UDP/IP Toolbox 2.0.6

TCP/IP connections or UDP packets in MATLAB

Description

TCP/UDP/IP Toolbox 2.0.6

Example of remote tcp-ip connection:
    con=pnet('tcpconnect','remote-server.xxx.com',1677);
    pnet(con,'printf','Hello world!\n');
    pnet(con,'close');

This toolbox can be used to set up TCP/IP connections or
send/receive UDP/IP packets in MATLAB. It can transmit data over the Intranet/Internet between MATLAB processes or other applications. It is possible to act as server and/or client and transmit textstrings, arrays of any datatype, files or MATLAB variables.

New in 2.0.6 2008-03-06

  -Included a precompiled pnet.mexw32 for support to in matlab R2007 (R2008?)
   No need to compile pnet.c to run at the R2007 platform.

NEW in 2.0.5

More "proper" license specification makes it possible to be useded as (dynamical) linked extention to non-free stand alones of your MATLAB commercial applications.
The precompiled pnet.dll is possible to run in matlab 5.x for Windows.

NEW in 2.0.4
* THE bug when running at Windows platform is removed.
* pnet_remote can call arrays of slaves with just one call.

NEW in 2.0.3
* Support for the single datatype.

NEW in 2.0.2
* Important Bugfix for UDP support.
* Calls to drawnow makes blocking operations breakable also in windows.

NEW in 2.0.1
* Bugfix for windows version, Sleep() delay is div. with 1000 to correspond to unix sleep().

NEW in 2.0:
* UDP packets.
* FAST Datatype support for int*, uint*, double, char.
* FAST INTERNAL byte swapping.
* UDP/IP-demos.
* TCP/IP-demos.
* WEB-SERVER demo.
* New nonblocking remote "eval" of matlab expression on remote host.
   
Tested to work with MATLAB 5.3/6.x for Linux, Solaris, Windows Compiled mex files for tested platforms included. C-source should compile under any Unix/Windows system. Also basic support for remote evaluation and paralelization of MATLAB is included.

This zip package includes the zip package containing version 1.2.4 with mex files (*.dll) for backward compatibility.

Toolbox by:

Peter Rydesäter
[e-mail]

http://www.rydesater.com

With support from Mario Bergeron & Mike Medeiros

Any donations from commercial use are welcome to sponsor this project.

TCP/IP connectivity is also included in The MathWorks Instrument Control Toolbox:

http://www.mathworks.com/products/instrument/

• Acknowledgements: This submission has inspired the following:; prcorr2 - 10 times faster correlation coef., py_udp
• MATLAB release: MATLAB 7.4 (R2007a)
• Other requirements: MATLAB R2007a, R2008a? 5.3 or 6.x. Low level calls probably works in 5.x

Other Files

license.txt,
tcp_udp_ip/Contents.m,
tcp_udp_ip/GNU_General_Public_License.txt,
tcp_udp_ip/license.txt,
tcp_udp_ip/old_tcpip-1.2.4.zip,
tcp_udp_ip/pnet.c,
tcp_udp_ip/pnet.dll,
tcp_udp_ip/pnet.m,
tcp_udp_ip/pnet.mexglx,
tcp_udp_ip/pnet.mexsol,
tcp_udp_ip/pnet.mexw32,
tcp_udp_ip/pnet_getvar.m,
tcp_udp_ip/pnet_putvar.m,
tcp_udp_ip/pnet_remote.m,
tcp_udp_ip/popmail_demo.m,
tcp_udp_ip/udp_plotter_demo.m,
tcp_udp_ip/udp_send_demo.m,
tcp_udp_ip/UDP_SIM_DAQ_DEMO/new_transmit_and_get.m,
tcp_udp_ip/UDP_SIM_DAQ_DEMO/README_UDP_DAQ_Simulator.txt,
tcp_udp_ip/UDP_SIM_DAQ_DEMO/sim_daq.m,
tcp_udp_ip/webget_demo.m,
tcp_udp_ip/webserver_demo.m,
tcp_udp_ip/whatsnew.txt,
tcp_udp_ip/ws_demo.jpg

[Veit-Stefan Kafka]

A very useful tool for interprocess communication. Sorringly there is no windows-dll included in the actual version (1.2), and the .c-file doesn't compile for me with lcc, so I have to use the linux-version ;-)

 

[Sacit M. Cetiner]

Very sound design; fills a great gap that MathWorks neglects for years.

Can be easily used for both TCP and UDP with a tiny change in command line.

[Doug Harriman]

Excellent functionality, very useful.

[Mejía C. José Alfonso]

All articles are importants & necessary for mi, the problem its on englihs, thanks you. I´m studing Biomedical engineer on México, D.F., Sorry for my bad english, by.

[Oki Gun]

Great - Just What I'm looking for

[Jeff Shafer]

Very nice package with good documentation. Many thanks!

[Arne Solstad]

Excellent functionality, and easy to use. Nice work!

[Merrill McKee]

Wonderful. Thanks.

[alex keuch]

Exactly what i was looking for. Thank's a lot.

[ren wei]

it is a remarkable work and just meet my needs.But there is something wrong when i tried to 'close' a connection, for the server showed 'busy' even if a command "pnet_remoet(con,'close')" was done in the workspace of a client . waiting for the answers! thank you !

[nick werle]

hackers cryptic unusable code is worth what you pay for it.

SW engineering is not doing 1 line of APL code that noone can maintain

[Jesus Lopez]

I was looking for a way to do TCP/IP communication over MATLAB and this toolbox gave me the solution I needed.
Maybe it's necessary to improve the documentation and to add some examples.

[Frans Cornelissen]

This toolbox will compile fine and work perfectly on mac os X as is. Yeah! Tested with matlab 7.0.1. on 10.3.2. Just use the mex command with the main pnet.c file and it will generate a pnet.mexmac.

[marc frown]

there is no sendvar file in the zip file i downloaded
any help?
Thanks

[chow wai theng]

Can I use it to connect to IIS on Windows 2000 and exchange variables or parameters (in string or text) to my ASP page?
Can it functions like a Web Server connection?

[furkan turkmen]

good job..

[hui lei]

thanks

[Ravi Paike]

Excellent Tool. Thanks

[Danish Hashmi]

nice tool

[Rousseau Jean-Michel]

Very flexible an independant tool.
Thank's

[Arne Solstad]

Very nice tool. Found it necessary to recompile for use in Windows XP/Matlab 7.3 and 7.4, but that was very straightforward - just follow instructions in header of pnet.c (one single mex command).

[Andrew Meyer]

Tried to compile a similar toolbox on top of winsock sockets with no success..this was exactly what i was looking for!

[Daniel Hrach]

 

[CB Williams]

Does the trick...

[Jim Tonti]

Excellent work! Ran tcpipmex.dll (tcpip -1.2.4 and associated open, read, write, status) without re-compiling under MATLAB V7 under WinXP SP2. This was a real time saver.

[Steven Kolak]

MATLAB now directly supports these protocols through the Instrument Control Toolbox. Visit the TCP/IP and UDP web pages for more information and a downloadable MATLAB code example:
http://www.mathworks.com/tcpip
and
http://www.mathworks.com/udp

[Ulrik -]

Why pay for something you can get for free :-)

[Stephen Morris]

This is an excellent package and covers the basics very well. However, I found it didn't quite cover my needs because I couldn't find a way of generating events (i.e. calling a callback function whenever data becomes available at a port). If there is in fact a way of doing this then the author can correct my comment, but in the meantime I have successfully used a third-party ActiveX control (SocketWrench from Catalyst Software) that provides this functionality for <$100.

[Felipe Braga]

Excelent package. I have a really simple doubt that maybe you can help me. I can send messages via this socket, I can establish the connection between my client application and the socket but I cannot read the messages sent from my client application to my MATLAB socket. What do I have to do to read and store this information?

Thanks for the help

[Francesco Riganti]

Excellent functionality, very useful.

[Nikola Toljic]

Excellent. Thanks.

[Imanol Cruz]

Waiting for a manual

[Imanol Cruz]

 

[Arturo Bandini]

thanks!

[Kevin Bartlett]

Got errors trying to compile under RedHat:
pnet.c:104: error: expected identifier or ?(? before ?/? token
and so on. Fixed by editing pnet.c to change all "//" comments to the "/* */" comment format (for example, the comment "// Grow...." becomes "/* Grow....*/"). Now udp_send_demo works on Linux to send data to another Linux machine running udp_plotter_demo. Great!

HOWEVER, still can't get my Windows machine to send data to the Linux machine. udp_send_demo creates a variable "udp" with a value of 1 (i.e., a valid socket, I think); then

   pnet(udp,'writepacket',host,port)

returns a value of 328 (presumably the number of bytes sent?), but nothing shows up at the Linux machine running udp_plotter_demo. Has anyone else had a similar experience?

[Martin]

Nice work. Thank you.

[Edward]

I can't get the program to run. When executing the examples, I get the error message

/PATH_TO_FILE/pnet.mexglx:
symbol mxCreateDoubleMatrix, version libmx.INTERNAL not defined in file libmx.so with link time reference.

An email to the author two weeks ago has not been answered.

[calvin nevil nayagam]

can some one please help me in using this tool box...

[Kevin Bartlett]

I have created a simple program for sending and receiving UDP packets. It isn't as feature-rich or flexible as the TCP/UDP/IP Toolbox, not having support for TCP packets or able to handle large volumes of data, but it may be sufficient for some applications.

Search the File Exchange for "py_udp".

[Goola]

I want to implement 802.11 MAC layer in matlab
is there anyone who knows any useful and related toolbox or m.file?

[Georg Stillfried]

I did not manage to compile the c-file pnet.c. I am running Matlab 2009a on a Linux machine with a 2.6.27 kernel and a 4.3.2. gcc compiler. Can anyone help me?

P.S. I recieve the following error messages:

>> mex -O pnet.c

Warning: You are using gcc version "4.3.2". The earliest gcc version supported
         with mex is "4.1". The latest version tested for use with mex is "4.2".
         To download a different version of gcc, visit http://gcc.gnu.org

pnet.c:104: error: expected identifier or ‘(’ before ‘/’ token
pnet.c:170: error: expected identifier or ‘(’ before ‘/’ token
pnet.c: In function ‘newbuffsize’:

[... many more error messages...]

pnet.c:1158: error: expected expression before ‘/’ token
pnet.c:1174: error: expected expression before ‘/’ token

    mex: compile of ' "pnet.c"' failed.

[Dan]

 

[Dan]

A great application. Just one question ... in the MATLAB version of tcpip in the instrument control toolbox, there is a parameter called 'OutputBufferSize'. There does not seem to be any kind of analogous parameter for this package. Is the OutputBufferSize dynamically sized or is there a fixed value that I should know about? When responding, please consider me to be a beginner when it comes to TCPIP ... a 'tcpip for dummies' response would be appreciated :)

[Kostas Grunder]

Georg Stillfried

To compile pnet.c under Linux (9.04 Ubuntu) in Matlab 2009b you must make sure the comments // are changed into /* ... */

e.g.:

// Comment Line

into

/* Comment Line */

Than:

mex pnet.c

it only gives me a warning

Warning: You are using gcc version "4.3.3-5ubuntu4)". The earliest gcc version supported
         with mex is "4.1". The latest version tested for use with mex is "4.2".
         To download a different version of gcc, visit http://gcc.gnu.org

A bit strange but it does compile

[Georg Stillfried]

Kostas Grunder

That did the trick. Thank you very much!

[Christopher Volpe]

When the latest version loads,the console output claims that it is version 2.0.5, as that's the version that's hard-coded into pnet.c. Is this merely a cosmetic error?