Hi colleague!

Problem

I develop an application with web intrface for my company. That application includes Perl classes and Embperl scripts. There are some places which take much time to retrieve results. So, I need to display for user some helpful message like 'Please wait' or animation picture which imitate progress bar.

Solution

I've found and stydied merlyn's solution Watching long processes through CGI. But I've decided to go by other way. My choise was occasioned following reasons:

• I did'n want to pass to the web server many requests
• I didn't want to make many changes in my scripts
• I did'n want to touch logic inside classes
• There is not possibility to flush buffers in the Embperl

So, I've implemented a following logic: if user call some of long running operations, request is passed to the special page - wait page. That page is Embperl script which displays helpful message, parses request arguments and does redirect to the target script (defined as request parameter) which execute long running operation.
So, the user watches display message untill that operation is not finished (Embperl is not flush buffers). Than result page loads and the user can see results.

I'd like to know your opinion about that solution. Thanks in advanced.

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