Qt: Add asynchronous simple dialog

When extcap fails before connecting to pipes, ws_write() in
InterfaceToolbar::controlSend() fails and error message is displayed to
the user.

Before this change, the message box would block until the user closes
the message. As the controlSend() was called inside "capture prepared"
context the remaining capture preparation code would wait for the user
action. However, the pipeTimeout() would get called before user confirms
the message as Qt would be processing all events in the main event
queue. This led to "capture failed" executing before "capture prepared"
finished. Such interruption caused multiple issues including freeing
buffer that was not yet allocated.

Bug: 15743
Change-Id: I6bc2734126292cdc5b560418069caf98747be68e
Reviewed-on: https://code.wireshark.org/review/33208
Reviewed-by: Peter Wu <peter@lekensteyn.nl>
Petri-Dish: Peter Wu <peter@lekensteyn.nl>
Tested-by: Petri Dish Buildbot
Reviewed-by: Tomasz Moń <desowin@gmail.com>
Petri-Dish: Alexis La Goutte <alexis.lagoutte@gmail.com>
Reviewed-by: Anders Broman <a.broman58@gmail.com>

0 files changed, 0 insertions, 0 deletions