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authorSven Gothel <[email protected]>2013-03-14 10:48:44 +0100
committerSven Gothel <[email protected]>2013-03-14 10:48:44 +0100
commit896e8b021b39e9415040a57a1d540d7d24b02db1 (patch)
treec031248b4a464602aaa150b4d088235b9db065f0 /REPOSITORIES.txt
parent58f6f4e5665ae2c72ec6bbd86ad5a36bef00de07 (diff)
OSX/CALayer: Revise CALayer 'RunOnMainThread' utilization, avoiding deadlocks
RunOnMainThread(waitUntilDone:=true,..) can deadlock the main-thread if called from AWT-EDT, since the main-thread may call back to AWT-EDT while injecting a new main-thread task. This patch revises all RunOnMainThread CALayer usage, resulting in only one required left: - OSXUtil.AddCASublayer() w/ waitUntilDone:=false Hence the CALayer code has no more potential to deadlock main-thread/AWT-EDT. OSXUtil.AddCASublayer() must be performed on main-thread, otherwise the CALayer attachment will fail - no visible rendering result. +++ Note: A good trigger to test this deadlock is to magnify/zoom the OSX desktop (click background + ctrl-mouse_wheel) before running some unit tests. TestGLCanvasAWTActionDeadlock01AWT and TestAddRemove02GLWindowNewtCanvasAWT also have the potential to trigger the mentioned deadlock.
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