ui: Fix hanging up Cocoa display on macOS 10.15 (Catalina)
macOS API documentation says that before applicationDidFinishLaunching is called, any events will not be processed. However, some events are fired before it is called in macOS Catalina. This causes deadlock of iothread_lock in handleEvent while it will be released after the app_started_sem is posted. This patch avoids processing events before the app_started_sem is posted to prevent this deadlock. Buglink: https://bugs.launchpad.net/qemu/+bug/1847906Signed-off-by: NHikaru Nishida <hikarupsp@gmail.com> Message-id: 20191015010734.85229-1-hikarupsp@gmail.com Signed-off-by: NGerd Hoffmann <kraxel@redhat.com>
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