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craigt
craigt
Last Activity: Jun 23 '21, 09:49 PM
Joined: Oct 4 '06
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  • craigt
    replied to How is modular access serialized in Perl?
    in Perl
    I think the answer is in the session idea as implemented in Perl and the consistent use of Perl voluntary locking.
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  • What I did that works as I hoped is that I load the indicator as an HTML file into an object in the CGI process and position that object at the V/H center of the iframe. I put a 1 second lag in the JavaScript that's executed when the IFRAME content is loaded (ONLOAD) to turn the indicator off, to ensure that at least a little of the indicator is seen on a real fast load.
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  • I loaded the HTML module with only the file loading indicator in the iframe in the CGI module and the animation worked. But loading the animation into a div positioned on top of the iframe or any where else in the CGI and the animation does not work.
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  • animation in Perl/CGI module does not work in any browser

    Hey,

    I have a file loading CSS animation in a Perl/CGI module that looks and positions as hoped in Chrome, Edge, FF, IE, and Opera. But the animation does not work in any of the browsers.

    I've taken the same CSS and DIVs where the animation should appear and put that in an HTML module and the animation works as expected. Thinking there might be some sort of interaction with other parts of the program, I stripped...
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  • craigt
    started a topic How is modular access serialized in Perl?
    in Perl

    How is modular access serialized in Perl?

    Several years back, I built a dll of database functions in C with another person. We serialized access to ensure that only 1 client at a time was in any function.

    Imagine for example, a Perl application where multiple clients are using a UI to enter the same type of data.
    When the data is saved by the clients, its posted to the same backend code that puts it in a file. Some of these clients may save at the 'same' time. ...
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  • craigt
    started a topic Code Serialization
    in Perl

    Code Serialization

    Hello,

    Please help me understand how Perl handles the following situation. In the C language in a LAN environment, when a client calls a database function in a DLL to access a server database, a system semaphore is is used to serialize code access to prevent the destruction of data in dataspaces.

    How does Perl handle this. Consider 2 clients out in the WWW using the same form to work on 2 different records of the...
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