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Tweak comment for why usleep is used.
........ Merged revisions 396656 from http://svn.asterisk.org/svn/asterisk/branches/1.8 ........ Merged revisions 396657 from http://svn.asterisk.org/svn/asterisk/branches/11 git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@396658 65c4cc65-6c06-0410-ace0-fbb531ad65f3
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@@ -207,7 +207,9 @@ static void *hash_test_count(void *d)
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ast_hashtab_end_traversal(it);
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if (last_count == count) {
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/* Allow other threads to run. */
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/* Give other threads ample chance to run, note that using sched_yield here does not
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* provide enough of a chance and can cause this thread to starve others.
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*/
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usleep(1);
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} else if (last_count > count) {
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/* Make sure the hashtable never shrinks */
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