diff options
Diffstat (limited to 'ui/cocoa.m')
| -rw-r--r-- | ui/cocoa.m | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/ui/cocoa.m b/ui/cocoa.m index f12e21df6e..fbb5b1b45f 100644 --- a/ui/cocoa.m +++ b/ui/cocoa.m @@ -134,6 +134,7 @@ NSArray * supportedImageFileTypes; static QemuSemaphore display_init_sem; static QemuSemaphore app_started_sem; +static bool allow_events; // Utility functions to run specified code block with iothread lock held typedef void (^CodeBlock)(void); @@ -729,6 +730,16 @@ QemuCocoaView *cocoaView; - (bool) handleEvent:(NSEvent *)event { + if(!allow_events) { + /* + * Just let OSX have all events that arrive before + * applicationDidFinishLaunching. + * This avoids a deadlock on the iothread lock, which cocoa_display_init() + * will not drop until after the app_started_sem is posted. (In theory + * there should not be any such events, but OSX Catalina now emits some.) + */ + return false; + } return bool_with_iothread_lock(^{ return [self handleEventLocked:event]; }); @@ -1156,6 +1167,7 @@ QemuCocoaView *cocoaView; - (void)applicationDidFinishLaunching: (NSNotification *) note { COCOA_DEBUG("QemuCocoaAppController: applicationDidFinishLaunching\n"); + allow_events = true; /* Tell cocoa_display_init to proceed */ qemu_sem_post(&app_started_sem); } |