I think you mean that HTTP is not a 'push' technology, because in fact your browser is pulling the information from the web-server. In any event I am well aware of how it works, but that has nothing to do with my question. For example there are CGI scripts that allow users to enter an IP address in a field and then perform traceroutes or pings. The browser renders each line as it is returned because stdout for that script is directed to the HTTP stream. Then when finished the stream is closed and the page is done. I would like to be able to do this with embperl, but it apparently holds everthing until the stream is close d and then sends the results to the browser, by default. Thats where those two variables come in, or at least one of them, but I can't seem to make it work.
-----Original Message----- From: alan milligan [mailto:[EMAIL PROTECTED]] Sent: Wednesday, November 21, 2001 10:39 PM To: [EMAIL PROTECTED] Subject: Re: Embperl and buffered output 1. HTTP is not a 'pull' related technology. the client must invoke each data request. TO do what you want to do, you need streaming. 2. Of course nothing is going to happen until your sub-process finishes - it is only then that process flow is returned to the main Embperl routine to complete writing the output to the request. >From: "Webb, Trey" <[EMAIL PROTECTED]> >To: "'[EMAIL PROTECTED]'" <[EMAIL PROTECTED]> >Subject: Embperl and buffered output >Date: Wed, 21 Nov 2001 20:23:13 -0500 >MIME-Version: 1.0 >Received: from [64.125.133.20] by hotmail.com (3.2) with ESMTP id >MHotMailBDC5A21B00934004325E407D8514115C0; Wed, 21 Nov 2001 17:38:35 -0800 >Received: (qmail 15183 invoked by uid 500); 22 Nov 2001 01:38:26 -0000 >Received: (qmail 8055 invoked from network); 22 Nov 2001 01:23:06 -0000 >From embperl-return-3165-alan_milligan Wed, 21 Nov 2001 17:38:41 -0800 >Mailing-List: contact [EMAIL PROTECTED]; run by ezmlm >Precedence: bulk >list-help: <mailto:[EMAIL PROTECTED]> >list-unsubscribe: <mailto:[EMAIL PROTECTED]> >list-post: <mailto:[EMAIL PROTECTED]> >Delivered-To: mailing list [EMAIL PROTECTED] >Delivered-To: moderator for [EMAIL PROTECTED] >Message-ID: <[EMAIL PROTECTED]> >X-Mailer: Internet Mail Service (5.5.2653.19) >X-Spam-Rating: daedalus.apache.org 1.6.2 0/1000/N > >I am trying to have the results of a ping displayed in the browser window >in >realtime. I read somewhere that embperl buffers the page before sending it. >I ahve tried to disable this by setting EMBPERL_OPTIONS to include the >optEarlyHttpHeader, I also tried to use optRedirectStdout. Neither seemed >to >work. I get the page displayed after everything the ping is done. Any ideas >on what I am doing wrong? Sample is below. > > open( PING, "/usr/sbin/ping -I 1 $fdat{ ip } 100 5|" ) ; > while ( <PING> ) { > print OUT "$_<BR>\n"; > } > close(PING); _________________________________________________________________ Get your FREE download of MSN Explorer at http://explorer.msn.com/intl.asp --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
