* Rename time.steady() to time.monotonic()
* On Windows, time.monotonic() uses GetTickCount/GetTickCount64() instead of
QueryPerformanceCounter()
* time.monotonic() uses CLOCK_HIGHRES if available
* Add time.get_clock_info(), time.perf_counter() and time.process_time()
functions
The public names (Thread, Condition, etc.) used to be factory functions
returning instances of hidden classes (_Thread, _Condition, etc.),
because (if Guido recalls correctly) this code pre-dates the ability to
subclass extension types.
It is now possible to inherit from Thread and other classes, without
having to import the private underscored names like multiprocessing did.
A doc update will follow: a patch is under discussion on the issue.
thread implementation.
Skip test_lock_acquire_interruption() and test_rlock_acquire_interruption() of
test_threadsignals if a thread lock is implemented using a POSIX mutex and a
POSIX condition variable. A POSIX condition variable cannot be interrupted by a
signal (e.g. on Linux, the futex system call is restarted).
and multiprocessing.Process constructors in order to override the
default behaviour of inheriting the daemonic property from the current
thread/process.
deletes its _block attribute, deal with that. This prevents an uncaught
exception in a thread during test_thread.
This refactors a bit to better match what I did in the r87727 backport to 2.7.
