Merged revisions 119585 via svnmerge from

https://origsvn.digium.com/svn/asterisk/branches/1.4

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r119585 | crichter | 2008-06-02 10:35:28 +0200 (Mo, 02 Jun 2008) | 1 line

Added counter for unhandled_bmsg Print, this prevents the logs to be flooded to fast and save CPU in this error scenario. Added 'last_used' element to bc structure, when a bchannel changes from used to free this exact time will be marked in last_used. When a new channel is requested the find_free_chan function will check if the new empty channel was used within the last second, if yes it will search for the next channel, if no it will return this channel. This simple mechanism has prooven to prevent race conditions where the NT and TE tried to allocate the exact same channel at the same time (RELEASE cause: 44).
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git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@119586 65c4cc65-6c06-0410-ace0-fbb531ad65f3