Error when being away from my computer for some time (8.5)

[sander]

can't read "shot(::namespace inscope ::AutoAway XAwayCmd)": no such element in array
can't read "shot(::namespace inscope ::AutoAway XAwayCmd)": no such element in array
    while executing
"if {$shot($name)} {
  set shot($name) 0
  uplevel #0 $name active
     }"
    (procedure "poll" line 20)
    invoked from within
"poll"
    (in namespace inscope "::idletime" script line 1)
    invoked from within
"::namespace inscope ::idletime poll"
    ("after" script)

[Mats (matsben)]

This one beats me. I can't reproduce it and I can't see how it can happen.
The 'state' and 'shot' vars are always updated in parallell:

proc ::idletime::add {procName secs} {
    variable state
    variable shot

    set state($procName) $secs
    set shot($procName) 0
}

proc ::idletime::remove {procName} {
    variable state
    variable shot

    unset -nocomplain state($procName)
    unset -nocomplain shot($procName)
}

I need some more info on exactly this happens. And perhaps some debugging:
parray idletime::state
parray idletime::shot

[sander (s-devrieze)]

I entered these commands when the error was on the screen (I was logged out for some unknown reason):

% parray idletime::state
idletime::state(::namespace inscope ::AutoAway LogoutCmd) = 60
% parray idletime::shot
idletime::shot(::namespace inscope ::AutoAway LogoutCmd) = 1

The error is exactly the same.

[Mats (matsben)]

I still don't see it. These two arrays are perfectly in sync having
the same names.
I assume that the error this time was

can't read "shot(::namespace inscope ::AutoAway AwayCmd)": no such
element in array

and not

can't read "shot(::namespace inscope ::AutoAway XAwayCmd)": no such
element in array

I have checked in a new idletime.tcl with debug info. See what you get
with this one.

[sander (s-devrieze)]

With debug code, the error is this:

can't read "shot(::namespace inscope ::AutoAway XAwayCmd)": no such element in array
can't read "shot(::namespace inscope ::AutoAway XAwayCmd)": no such element in array
    while executing
"if {$shot($name)} {
  set shot($name) 0
  uplevel #0 $name active
     }"
    (procedure "poll" line 28)
    invoked from within
"poll"
    (in namespace inscope "::idletime" script line 1)
    invoked from within
"::namespace inscope ::idletime poll"
    ("after" script)

And the console has this debug output (long!):

% ::idletime::poll idlesecs=1
::idletime::poll idlesecs=3
state(::namespace inscope ::AutoAway AwayCmd) = 120
state(::namespace inscope ::AutoAway LogoutCmd) = 60
state(::namespace inscope ::AutoAway XAwayCmd) = 1805
shot(::namespace inscope ::AutoAway AwayCmd) = 0
shot(::namespace inscope ::AutoAway LogoutCmd) = 0
shot(::namespace inscope ::AutoAway XAwayCmd) = 0
         name=::namespace inscope ::AutoAway LogoutCmd, secs=60
         name=::namespace inscope ::AutoAway XAwayCmd, secs=1805
         name=::namespace inscope ::AutoAway AwayCmd, secs=120
::idletime::poll idlesecs=0
state(::namespace inscope ::AutoAway AwayCmd) = 120
state(::namespace inscope ::AutoAway LogoutCmd) = 60
state(::namespace inscope ::AutoAway XAwayCmd) = 1805
shot(::namespace inscope ::AutoAway AwayCmd) = 0
shot(::namespace inscope ::AutoAway LogoutCmd) = 0
shot(::namespace inscope ::AutoAway XAwayCmd) = 0
         name=::namespace inscope ::AutoAway LogoutCmd, secs=60
         name=::namespace inscope ::AutoAway XAwayCmd, secs=1805
         name=::namespace inscope ::AutoAway AwayCmd, secs=120
::idletime::poll idlesecs=0
state(::namespace inscope ::AutoAway AwayCmd) = 120
state(::namespace inscope ::AutoAway LogoutCmd) = 60
state(::namespace inscope ::AutoAway XAwayCmd) = 1805
shot(::namespace inscope ::AutoAway AwayCmd) = 0
shot(::namespace inscope ::AutoAway LogoutCmd) = 0
shot(::namespace inscope ::AutoAway XAwayCmd) = 0
         name=::namespace inscope ::AutoAway LogoutCmd, secs=60
         name=::namespace inscope ::AutoAway XAwayCmd, secs=1805
         name=::namespace inscope ::AutoAway AwayCmd, secs=120
::idletime::poll idlesecs=0
state(::namespace inscope ::AutoAway AwayCmd) = 120
state(::namespace inscope ::AutoAway LogoutCmd) = 60
state(::namespace inscope ::AutoAway XAwayCmd) = 1805
shot(::namespace inscope ::AutoAway AwayCmd) = 0
shot(::namespace inscope ::AutoAway LogoutCmd) = 0
shot(::namespace inscope ::AutoAway XAwayCmd) = 0
         name=::namespace inscope ::AutoAway LogoutCmd, secs=60
         name=::namespace inscope ::AutoAway XAwayCmd, secs=1805
         name=::namespace inscope ::AutoAway AwayCmd, secs=120
::idletime::poll idlesecs=1
state(::namespace inscope ::AutoAway AwayCmd) = 120
state(::namespace inscope ::AutoAway LogoutCmd) = 60
state(::namespace inscope ::AutoAway XAwayCmd) = 1805
shot(::namespace inscope ::AutoAway AwayCmd) = 0
shot(::namespace inscope ::AutoAway LogoutCmd) = 0
shot(::namespace inscope ::AutoAway XAwayCmd) = 0
         name=::namespace inscope ::AutoAway LogoutCmd, secs=60
         name=::namespace inscope ::AutoAway XAwayCmd, secs=1805
       ...

[Mats (matsben)]

This was a tricky one. The handlers for auto-away were removed when doing the callback for the logout handler. This is a classic situation which van be hard to detect. Untested.

[sander (s-devrieze)]

Looks to be fixed; never had this error again.