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98afd02be3
timerfd_tracker and timerfd_shared classes: - Just because handles are shared, we don't have to store them in shared memory. Move share handles into timerfd_tracker class. - Drop shared instance counter since it's not required anymore. timerfd_shared only stores the actual timer data. - Drop timerfd_shared::create, just set clock id. - Drop timerfd_shared::dtor, it's not required anymore. - Drop timerfd_tracker::close, just call dtor where required. - Rename timerfd_tracker::increment_instances to timerfd_tracker::dup. It's the only reason it exists... - timerfd_tracker::dtor now checks the non-shared pointers for NULL before attempting to close them. - timerfd_tracker::dtor handles decrementing the local instance count by itself. - Add a method timerfd_tracker::init_fixup_after_fork_exec to set non-shared pointers to NULL. Together with the dtor patches it fixes a problem with close_on_exec timerfd descriptors. - Fix a bug in handling the thread synchronization event. It's actually nice to create it before using it... - Drop using sec_none{_nih} in InitializeObjectAttributes. It's an unnecessary roundabout route just to get a NULL pointer. - Slightly rework timechange window handling. - Add more comments to explain what happens. fhandler_timerfd: - Drop cnew macro, it just hides what happens. - fhandler_timerfd::fixup_after_exec now calls timerfd_tracker::init_fixup_after_fork_exec first, so a subsequent call to timerfd_tracker::dtor only works on valid handles. - fhandler_timerfd::close directly calls timerfd_tracker::dtor now. - Drop dtor call in fhandler_timerfd destructor. Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. Cygwin documentation is available on the net at https://cygwin.com You might especially be interested in https://cygwin.com/faq/faq.html#faq.programming.building-cygwin