Indy is blocking, so typically on the client side, you would create a waiting thread that you sit the TCPClient inside and loop a readtimeout until the resultbuffer has some data. At that point produce a local event so that your main thread can grab the TCPClient and read the information.<div>
<br></div><div>without knowing your actual program design and how your TCP layer interacts with your main application its hard to offer any detailed advise, sorry. <br><br><div class="gmail_quote">On Thu, Dec 4, 2008 at 9:14 AM, Paul <span dir="ltr"><<a href="mailto:paul.blommaerts@telenet.be">paul.blommaerts@telenet.be</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;">
<div bgcolor="#ffffff">
<div><font face="Arial">Indy works blocking only</font></div>
<div><font face="Arial">Use ICS instead, they work blocking or non
blocking.</font></div>
<div><font face="Arial">check <a href="http://www.overbyte.be" target="_blank">www.overbyte.be</a></font></div>
<div><font face="Arial"></font> </div>
<div><font face="Arial">Paul</font></div>
<blockquote style="padding-right:0px;padding-left:5px;margin-left:5px;border-left:#000000 2px solid;margin-right:0px"><div><div></div><div class="Wj3C7c">
<div style="font:10pt arial">----- Original Message ----- </div>
<div style="background:#e4e4e4;font:10pt arial"><b>From:</b>
<a title="eaa603@hotmail.com" href="mailto:eaa603@hotmail.com" target="_blank">Eric A</a> </div>
<div style="font:10pt arial"><b>To:</b> <a title="delphi@delphi.org.nz" href="mailto:delphi@delphi.org.nz" target="_blank">Delphi UsersGroup</a> </div>
<div style="font:10pt arial"><b>Sent:</b> Wednesday, December 03, 2008 8:55
PM</div>
<div style="font:10pt arial"><b>Subject:</b> [DUG] Indy Sockets - How to
Receive Asynchronously</div>
<div><br></div>I have a situation where I need to communicate with a
communications server using Indy TCP sockets. <br> <br>After
sending the command the server returns an "OK" response with a second or two
to acknowledge the acceptance of the command, however the reponse from the end
device (returned via the server) may take several minutes to eventuate (or a
else the sever returns a timeout message). I need to be able to buffer
the responses, be aware of when new strings arrinve, and carry on with other
tasks. This threading aspect shouldn't be an issue as I understand
that Indy is naturally multitrheaded by design.<br> <br>I'm not familiar
with using the Indy sockets and since there's no "received data event" (due to
the nature of the design) I'm wondering how I capture the asynchronous
responses sensibly?<br> <br>Does anyone have some code to show me how to
use the Indy 10 TCPClient component in this way (for the receive part)
? Its probably pretty simple but I need to get my head around it
quickly.<br> <br>Thanks<br> <br>Eric<br><br>
<hr>
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