Merged revisions 78028 via svnmerge from

Merged revisions 78028 via svnmerge from
https://origsvn.digium.com/svn/asterisk/branches/1.4

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r78028 | russell | 2007-08-02 21:04:22 -0500 (Thu, 02 Aug 2007) | 6 lines

Don't reuse the timespec that was set to 0 in the previous timedwait as it
will just return immediately.  Also, fix some logic so the thread's lock
isn't unlocked twice in the weird case of dynamic threads getting acquired
right after a timeout.
(pointed out by SteveK)

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git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@78029 65c4cc65-6c06-0410-ace0-fbb531ad65f3