| Commit message (Collapse) | Author | Age | Files | Lines |
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Terminal.damage is accessed when drawing and when invalidating the widget. For
this reason we need to protect it with a mutex.
This seems to fix various damage issues I've been experiencing (where some
regions of the terminal weren't correctly repainted).
Race detector trace:
Read at 0x00c0000c6670 by main goroutine:
git.sr.ht/~sircmpwn/aerc/widgets.(*Terminal).Draw()
/home/simon/src/aerc/widgets/terminal.go:292 +0x191
git.sr.ht/~sircmpwn/aerc/lib/ui.(*Grid).Draw()
/home/simon/src/aerc/lib/ui/grid.go:117 +0x575
git.sr.ht/~sircmpwn/aerc/lib/ui.(*Grid).Draw()
/home/simon/src/aerc/lib/ui/grid.go:117 +0x575
git.sr.ht/~sircmpwn/aerc/widgets.(*MessageViewer).Draw()
/home/simon/src/aerc/widgets/msgviewer.go:231 +0x253
git.sr.ht/~sircmpwn/aerc/lib/ui.(*TabContent).Draw()
/home/simon/src/aerc/lib/ui/tab.go:124 +0x12e
git.sr.ht/~sircmpwn/aerc/lib/ui.(*Grid).Draw()
/home/simon/src/aerc/lib/ui/grid.go:117 +0x575
git.sr.ht/~sircmpwn/aerc/widgets.(*Aerc).Draw()
/home/simon/src/aerc/widgets/aerc.go:95 +0x5a
git.sr.ht/~sircmpwn/aerc/lib/ui.(*UI).Tick()
/home/simon/src/aerc/lib/ui/ui.go:93 +0x1dd
main.main()
/home/simon/src/aerc/aerc.go:105 +0x539
Previous write at 0x00c0000c6670 by goroutine 37:
git.sr.ht/~sircmpwn/aerc/widgets.(*Terminal).onDamage-fm()
/home/simon/src/aerc/widgets/terminal.go:429 +0x131
git.sr.ht/~sircmpwn/go-libvterm._go_handle_damage()
/home/simon/go/pkg/mod/git.sr.ht/~sircmpwn/go-libvterm@v0.0.0-20190421201021-3184f6f13687/vterm.go:481 +0xf9
git.sr.ht/~sircmpwn/go-libvterm._cgoexpwrap_5e22200b58b7__go_handle_damage()
_cgo_gotypes.go:731 +0x58
runtime.call32()
/usr/lib/go/src/runtime/asm_amd64.s:519 +0x3a
git.sr.ht/~sircmpwn/go-libvterm.(*VTerm).Write.func1()
/home/simon/go/pkg/mod/git.sr.ht/~sircmpwn/go-libvterm@v0.0.0-20190421201021-3184f6f13687/vterm.go:329 +0x9d
git.sr.ht/~sircmpwn/go-libvterm.(*VTerm).Write()
/home/simon/go/pkg/mod/git.sr.ht/~sircmpwn/go-libvterm@v0.0.0-20190421201021-3184f6f13687/vterm.go:329 +0x7f
git.sr.ht/~sircmpwn/aerc/widgets.NewTerminal.func1()
/home/simon/src/aerc/widgets/terminal.go:131 +0x18c
Goroutine 37 (running) created at:
git.sr.ht/~sircmpwn/aerc/widgets.NewTerminal()
/home/simon/src/aerc/widgets/terminal.go:121 +0x23f
git.sr.ht/~sircmpwn/aerc/widgets.NewMessageViewer()
/home/simon/src/aerc/widgets/msgviewer.go:147 +0xfbe
git.sr.ht/~sircmpwn/aerc/commands/account.ViewMessage()
/home/simon/src/aerc/commands/account/view-message.go:26 +0x4a4
git.sr.ht/~sircmpwn/aerc/commands.(*Commands).ExecuteCommand()
/home/simon/src/aerc/commands/commands.go:47 +0x1f0
main.main.func1()
/home/simon/src/aerc/aerc.go:76 +0x205
git.sr.ht/~sircmpwn/aerc/widgets.(*Aerc).BeginExCommand.func1()
/home/simon/src/aerc/widgets/aerc.go:262 +0x89
git.sr.ht/~sircmpwn/aerc/widgets.(*ExLine).Event()
/home/simon/src/aerc/widgets/exline.go:47 +0x222
git.sr.ht/~sircmpwn/aerc/widgets.(*Aerc).Event()
/home/simon/src/aerc/widgets/aerc.go:133 +0x83c
git.sr.ht/~sircmpwn/aerc/widgets.(*Aerc).simulate()
/home/simon/src/aerc/widgets/aerc.go:126 +0x12a
git.sr.ht/~sircmpwn/aerc/widgets.(*Aerc).Event()
/home/simon/src/aerc/widgets/aerc.go:148 +0x766
git.sr.ht/~sircmpwn/aerc/lib/ui.(*UI).Tick()
/home/simon/src/aerc/lib/ui/ui.go:86 +0x11b
main.main()
/home/simon/src/aerc/aerc.go:105 +0x539
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Will probably end up doing this differently anyway
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Also removes some options that aren't going to be supported any time
soon.
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Or rather, to a user-specified folder
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Also moves truncation to the tab widget
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MessageStore has a lot of exported fields that can be read from the outside.
Each read must be protected, because a call from Update could happen at any
time.
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This field could be written to in the middle of a Draw call, which reads it
multiple times. Use an atomic variable instead.
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Many Drawable implementations have their own Invalidate and OnInvalidate
functions, with an unexported onInvalidate field. However OnInvalidate and
Invalidate are usually not called in the same goroutine. This results in a race
on this field, e.g.:
Read at 0x00c000094748 by goroutine 7:
git.sr.ht/~sircmpwn/aerc2/widgets.NewDirectoryList.func1()
/home/simon/src/aerc2/widgets/dirlist.go:85 +0x56
git.sr.ht/~sircmpwn/aerc2/widgets.(*Spinner).Start.func1()
/home/simon/src/aerc2/widgets/spinner.go:93 +0x1bb
Previous write at 0x00c000094748 by main goroutine:
[failed to restore the stack]
Goroutine 7 (running) created at:
git.sr.ht/~sircmpwn/aerc2/widgets.(*Spinner).Start()
/home/simon/src/aerc2/widgets/spinner.go:46 +0x8f
git.sr.ht/~sircmpwn/aerc2/widgets.NewDirectoryList()
/home/simon/src/aerc2/widgets/dirlist.go:37 +0x286
git.sr.ht/~sircmpwn/aerc2/widgets.NewAccountView()
/home/simon/src/aerc2/widgets/account.go:50 +0x5ca
git.sr.ht/~sircmpwn/aerc2/widgets.NewAerc()
/home/simon/src/aerc2/widgets/aerc.go:60 +0x800
main.main()
/home/simon/src/aerc2/aerc.go:65 +0x33e
To fix this, introduce a new type, Invalidatable, which protects the field.
Unfortunately the Drawable must be passed to the callback function in
Invalidate, so we still need to re-implement this in each Invalidatable user.
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It's accessed by the goroutine which increments it and the goroutine that draws
the widget at the same time. Use atomic instead.
Write at 0x00c00000ebc0 by goroutine 7:
git.sr.ht/~sircmpwn/aerc2/widgets.(*Spinner).Start.func1()
/home/simon/src/aerc2/widgets/spinner.go:50 +0x169
Previous read at 0x00c00000ebc0 by main goroutine:
[failed to restore the stack]
Goroutine 7 (running) created at:
git.sr.ht/~sircmpwn/aerc2/widgets.(*Spinner).Start()
/home/simon/src/aerc2/widgets/spinner.go:44 +0x8b
git.sr.ht/~sircmpwn/aerc2/widgets.NewDirectoryList()
/home/simon/src/aerc2/widgets/dirlist.go:37 +0x286
git.sr.ht/~sircmpwn/aerc2/widgets.NewAccountView()
/home/simon/src/aerc2/widgets/account.go:50 +0x5ca
git.sr.ht/~sircmpwn/aerc2/widgets.NewAerc()
/home/simon/src/aerc2/widgets/aerc.go:60 +0x800
main.main()
/home/simon/src/aerc2/aerc.go:65 +0x33e
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This also fixes segfault on :view-message on empty directory
Signed-off-by: Tom Lebreux <tomlebreux@cock.li>
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Signed-off-by: Tom Lebreux <tomlebreux@cock.li>
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When changing to an empty directory, ml.selected is 0, and the length
of ml.store.Uids is 0. The loop condition is always true so we have
an infinite loop causing 100% CPU usage and prevents us to change to
other directories.
Signed-off-by: Tom Lebreux <tomlebreux@cock.li>
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Still not great but at least it tells you when something went wrong
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