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authorSven Gothel <[email protected]>2014-09-22 23:17:28 +0200
committerSven Gothel <[email protected]>2014-09-22 23:23:42 +0200
commitb13f4efae1ad14117efef6a3bd5eee47aaa98cdf (patch)
tree2ffd139255cc3d74e7205cae2c7d50378d01f153 /doc/jsr-231-changelog-1.1.0.html
parent657081451f7cceac0b0a58b3c15a10a6d3b4b907 (diff)
Fix synchronization issues in GLDrawableHelper.flushGLRunnables(), fixes rare deadlock with animator-exception and invoke(wait=true, ..)
Fix synchronization issues in GLDrawableHelper.flushGLRunnables(): - Querying 'glRunnables.size()' is not synchronized, only its reference is volatile, not the instance's own states. - 'flushGLRunnable()' must operates while acquired the 'glRunnable' lock. - 'glRunnables' are no more volatile - introduced volatile 'glRunnableCount', allowing 'display(..)' method to pre-query whether blocking 'execGLRunnables(..)' must be called. This is risk (deadlock) free. Also fixes rare deadlock in animator display-exception / GLAD.invoke(wait=true, ..) case: - 'GLDrawableHelper.invoke(.., GLRunnable)' acquires the 'glRunnable' lock. - Then it queries animator state, which is blocking. - Hence animator's 'flushGLRunnable()' call must happen outside the animator lock
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