Periodic refreshes make sure that the 32-bit GetTickCount wraparounds are
properly counted even if the user doesn't call GetTickCount64 for extended
periods of time.
Therefore get rid of that and replace inheritance by lifting std::iterator's members into the derived class.
Signed-off-by: Daniela Engert <dani@ngrt.de>
* Fixed try_unlock_shared_and_lock_until/for() and
try_unlock_shared_and_lock_upgrade_until/for() so that they wait on the
correct condition variable for the associated predicate.
* Fixed try_unlock_shared_and_lock_until/for() and
try_unlock_upgrade_and_lock_until/for() so that they take the
write_entered_ flag before waiting for all shared readers to unlock. This
prevents new readers from taking a shared lock or new writers from taking
the exclusive lock while these functions are waiting to take the
exclusive lock.
* Changed notify_all() calls to occur while the mutex is being held to be
consistent with the notify_one() calls and the existing
pthread/shared_mutex.hpp implementation.
* Added BOOST_THREAD_PROVIDES_SHARED_MUTEX_UPWARDS_CONVERSIONS ifdefs.
* Added BOOST_ASSERT() statements to verify correct usage and operation.
* Fixed an incorrect test case that the BOOST_ASSERT() statements
uncovered.
* Added comments to explain certain design decisions.
* Added checks for BOOST_THREAD_USES_CHRONO
* Rearranged the order of the functions in v2/shared_mutex.hpp
* No changes were made to the contents of any functions
* Also added comments to the win32 mutex implementations to clarify
how the existing code works
* Also removed a few unnecessary intermediate variables
* Used the predicate version of condition_variable::wait_until() which
correctly handles time jump events.
* Fixed an issue with sync_timed_queue::pull_until()/pull_for() where
they could incorrectly return queue_op_status::timeout instead of
queue_op_status::success.
* Changed sync_timed_queue::wait_pull() to return
queue_op_status::success instead of queue_op_status::closed when the
queue has been closed but an item is available and is ready to be
pulled off the queue.
* Changed sync_priority_queue::pull_until()/pull_for() and
sync_timed_queue::pull_until()/pull_for() to return
queue_op_status::closed instead of throwing an exception when the
queue is closed since they have a queue_op_status return type.
