Warning (#<thread: thread1841>): in thread: (memq) bad argument type: #t

[retroj]

With (llog-watch 'update) on, I observed the following in mowedline's output:

update #<active-window-icon> (#<image>)                                                                                                                                                       
  update "workspaces" ("1 <2> 4 8 [9] coe esm taxes")

Warning (#<thread: thread1841>): in thread: (memq) bad argument type: #t
  update "wmflags" ("")
  update #<clock> ("Mon Jun  4 20:46 EDT 2018")                                                                                                                                               
  update "workspaces" ("1 <2> 4 [8] 9 coe esm taxes")                                                                                                                                         

Prior to this I had changed my xrandr configuration to add a second monitor, then restarted my window manager, then changed focus to the second monitor.

Something to notice about this output is that everything after the warning is indented by 2 spaces, which tells me that the llog block for update #<active-window-icon> (#<image>) did not finish normally.

[retroj]

One of mowedline's threads seems to have stopped.

• Updates over dbus still work.
• Clock is still working.
• alsa volume level is still working.
• Active-window-icon and active-window-title are not updating.
• primary-selection and clipboard are not updating

[retroj]

Also during normal operation, I get logs like this from time to time:

update #<active-window-icon> (#f)
  update #<text-widget> ((0.96 Discharging))
  update #<clock> ("Tue Jun  5 06:35 EDT 2018")
update #<active-window-title> ("mowedline-widgets-ewmh.scm")

Two updates are indented under an update of active-window-icon. This is supposed to be impossible. Any given update should finish processing before another can be processed.

[retroj]

update "workspaces" ("1 2 4 8 9 [coe] esm taxes wurlitzer")
<active-window-icon> entry
<active-window-icon> got icon
  update #<active-window-icon> (#<image>)
<active-window-icon> exit

Error: (memq) bad argument type: #t

        Call history:

        mowedline-cli.scm:26: k4409
        mowedline.scm:571: llog#llog-unindent
        <eval>    [llog-unindent] (memq type llog-watches)
        <eval>    [llog-unindent] (- llog-depth 1)
        mowedline.scm:702: current-xcontext41674168
        mowedline.scm:702: current-xcontext41674168
        mowedline-cli.scm:26: g4413
        mowedline-cli.scm:26: ##sys#signal              <--

[retroj]

The error with memq was from llog, so as an experiment, I changed llog-watches to be a cell, instead of an ordinary variable. I also have the active-window-icon being fetched and drawn on the mailbox thread instead of in the xlib thread.

<active-window-icon> got icon                  
  update #<active-window-icon> (#f)                          
<active-window-icon> exit                                    
update #<active-window-title> ("tmux")                       
<active-window-icon> entry                                   
<active-window-icon> got icon                                
  update #<active-window-icon> (#f)                          
<active-window-icon> exit

Warning (#<thread: thread1854>): in thread: (assv) bad argument type: transparent

        Call history:

        mowedline.scm:304: alist-ref            <--
  update "workspaces" ("1 [2] 4 8 9 coe esm taxes wurlitzer")
  update "wmflags" ("tabbed")
  update #<text-widget> (asleep)