How to make global variable with summary value

Hello all,
I know that is a very bad idea for cfengine but I want counting
modifications by cfengine. I prepared small testing example:

bundle common success_add(value) {
vars:
  "sum" string => eval("${sum} + ${value}", "math", "infix"),
    if => isvariable("sum");

  "sum" string => "${value}",
    unless => isvariable("sum");

reports:
  "success: add=${value}, total=${sum}";
}

bundle agent summary {
reports:
  "SUMMARY: ${success_add.sum}";
}

bundle agent __main__ {
methods:
  "add_100" usebundle => success_add("100");
  "add_010" usebundle => success_add("10");
  "add_001" usebundle => success_add("1");
  "summary";
}


I expect SUMMARY=111 but i get very different result:

R: success: add=100, total=400.000000
R: success: add=100, total=500.000000
R: success: add=100, total=600.000000
R: success: add=10, total=630.000000
R: success: add=10, total=640.000000
R: success: add=10, total=650.000000
R: success: add=1, total=653.000000
R: success: add=1, total=654.000000
R: success: add=1, total=655.000000
R: SUMMARY: 655.000000

OK, cfengine runs every bundle 3 times. Does there exist any solution
to get the total value 111? Why is the result 655 and not 666?

Thanks for any ideas.
Michal Svamberg

-- 
You received this message because you are subscribed to the Google Groups "help-cfengine" group.
To unsubscribe from this group and stop receiving emails from it, send an email to [email protected].
To view this discussion on the web visit https://groups.google.com/d/msgid/help-cfengine/CAFgL0Wi0df3pOnEE4kW_KEgYaUBO94tSEwx2YF6%3DscZf4d2oQw%40mail.gmail.com.