Follow cl-threads 394cd4a: processors counted on Windows
cl-threads counts the processors on Windows too, with
GetActiveProcessorCount over every processor group, so a pool's default
worker count follows them there as on Linux; elsewhere it is one worker.
Follow cl-threads 95038a9: joining with SBCL's join-thread
A join waits until the thread has ended, which several threads may wait
for at once, and a thread counts as finished once it has ended. A
thread not made by make-thread cannot be joined because cl-threads has
none of its function's values, not because it cannot tell when it ends.
The old "Errors in threads" section, which "Errors in a thread"
replaced, goes.
Follow cl-threads 50f196a: INTERRUPT-THREAD, thread bindings, pool streams
Threads and Synchronisation describes MAKE-THREAD's :BINDINGS and
INTERRUPT-THREAD, and a semaphore signalled with a count of 0. Job
Pools says that a sleeping worker keeps nothing its jobs used alive, and
that :BINDINGS can give the workers streams of their own. Thread Rules
and the API Reference follow.
