rx-tq-waiter-rework-20050914

rx-tq-waiter-rework-20050914

heavily reworked by jaltman@secure-endpoints.com
and then a little further editing by me

see if we can avoid doing to sleep forever waiting on the tq to flush

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This delta was composed from multiple commits as part of the CVS->Git migration.
The checkin message with each commit was inconsistent.
The following are the additional commit messages.
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do not decrement tqWaiters in the while evaluation.   This will
result in an invalid count if the value was zero to begin with.