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| author | Koni Marti <koni.marti@gmail.com> | 2022-01-11 12:02:28 +0100 |
|---|---|---|
| committer | Robin Jarry <robin@jarry.cc> | 2022-01-14 20:35:07 +0100 |
| commit | 4782473064fa0a712aa1e26333ad175446404a64 (patch) | |
| tree | ed81b8699bd4d588034a58595ed4c7641a797464 | |
| parent | 71eda7d37c8ef38502c360b518fcbf5960497eea (diff) | |
| download | aerc-4782473064fa0a712aa1e26333ad175446404a64.tar.gz aerc-4782473064fa0a712aa1e26333ad175446404a64.zip | |
fix segfault when copy-pasting into compose editor
fixes the segmentation fault when copy-pasting a large text into the
composer editor. The problem is a concurrent read of the vterm field in the
Terminal widget in its flushTerminal() method which can be avoided with a mutex.
Fixes: https://todo.sr.ht/~rjarry/aerc/12
Signed-off-by: Koni Marti <koni.marti@gmail.com>
| -rw-r--r-- | widgets/terminal.go | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/widgets/terminal.go b/widgets/terminal.go index 2a1afa5f..68c95534 100644 --- a/widgets/terminal.go +++ b/widgets/terminal.go @@ -106,6 +106,7 @@ type Terminal struct { damage []vterm.Rect // protected by damageMutex damageMutex sync.Mutex writeMutex sync.Mutex + readMutex sync.Mutex OnClose func(err error) OnEvent func(event tcell.Event) bool @@ -155,7 +156,9 @@ func NewTerminal(cmd *exec.Cmd) (*Terminal, error) { func (term *Terminal) flushTerminal() { buf := make([]byte, 4096) for { + term.readMutex.Lock() n, err := term.vterm.Read(buf) + term.readMutex.Unlock() if err != nil { term.Close(err) return |