id	summary	reporter	owner	description	type	status	milestone	component	version	severity	resolution	keywords	cc
1867	Missing member functions in shared_mutex (win32)	andysem@…	Anthony Williams	"The windows implementation of shared_mutex does not provide try_lock and try_lock_upgrade member functions, while pthread version does. I guess, the functions were simply forgotten to be implemented.

The try_lock function can be a trivial wrapper on top of timed_lock. The try_lock_upgrade function is a bit more complicated and, AFAICT, a part of lock_upgrade can be extracted as try_lock_upgrade.
"	Bugs	closed	Boost 1.36.0	thread	Boost 1.35.0	Problem	fixed	thread, shared_mutex, try_lock, try_lock_upgrade