Fix thread join hangs

Current implementation notifies only one of joining threads on thread exit.
This causes the other joining threads to hang.

This patch notifies all joining threads: just call NotifyAll() instead of Notify().

Change-Id: If75f101d3d3d876f1aa7dcf537e56a37cc347803
Signed-off-by: Yevgeny Rouban <yevgeny.y.rouban@intel.com>
1 file changed