svghmi/widget_custom.ysl2
author Edouard Tisserant
Wed, 01 Mar 2023 10:54:54 +0100
changeset 3740 ac0e6de439b5
parent 2909 0519fdce9a59
permissions -rw-r--r--
Linux runtime: overrun detection for real-time timers and for plc execution.

If real-time timer wakes-up PLC thread too late (10% over period), then
warning is logged.

If PLC code (IO retreive, execution, IO publish) takes longer than requested
PLC execution cycle, then warning is logged, and CPU hoogging is mitigated
by delaying next PLC execution a few cylces more until having at least
1ms minimal idle time.
// widget_custom.ysl2
//
// widget entierely defined from JS code in Inkscape description field

// TODO

// a preliminary implementation was initially attempted but disabled
// code collected around before code refactoring


/*const "mark" > =HMI=\n*/


        /* TODO re-enable
        ||
        function evaluate_js_from_descriptions() {
            var Page;
            var Input;
            var Display;
            var res = [];
        ||
        const "midmark" > \n«$mark»
        apply """//*[contains(child::svg:desc, $midmark) or \
                     starts-with(child::svg:desc, $mark)]""",2 
              mode="code_from_descs";
        ||
            return res;
        }
        ||
        */

    // template "*", mode="code_from_descs" {
    //     ||
    //     {
    //         var path, role, name, priv;
    //         var id = "«@id»";
    //     ||

    //     /* if label is used, use it as default name */
    //     if "@inkscape:label"
    //         |> name = "«@inkscape:label»";

    //     | /* -------------- */

    //     // this breaks indent, but fixing indent could break string literals
    //     value "substring-after(svg:desc, $mark)";
    //     // nobody reads generated code anyhow...

    //     ||

    //         /* -------------- */
    //         res.push({
    //             path:path,
    //             role:role,
    //             name:name,
    //             priv:priv
    //         })
    //     }
    //     ||
    // }