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Xlib has several independent tasks that need to be performed with the display unlocked. It does this by replacing the existing sync handler with one of a variety of internal sync handlers. However, if multiple internal sync handlers need to run, then the last one registering wins and previously registered internal sync handlers are never invoked. This manifested as a bug with DRI applications on Xlib/XCB as that requires both an XID handler after every XID allocation, and the periodic sequence number handler. The XID handler would win, and the sequence number handler would never be invoked. Fix this by unifying the internal sync handler mechanism into a single function that calls all of the known internal sync handlers. They all need to deal with being called when not strictly necessary now. Signed-off-by: Keith Packard <keithp@keithp.com> Signed-off-by: Jamey Sharp <jamey@minilop.net> Signed-off-by: Josh Triplett <josh@freedesktop.org> |
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