Fix a variety of ref counting issues

This patch resolves a number of ref leaks that occur primarily on Asterisk
shutdown.  It adds a variety of shutdown routines to core portions of
Asterisk such that they can reclaim resources allocate duringd initialization.

Review: https://reviewboard.asterisk.org/r/2137
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Merged revisions 374177 from http://svn.asterisk.org/svn/asterisk/branches/1.8
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Merged revisions 374178 from http://svn.asterisk.org/svn/asterisk/branches/10
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Merged revisions 374196 from http://svn.asterisk.org/svn/asterisk/branches/11


git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@374197 65c4cc65-6c06-0410-ace0-fbb531ad65f3

1 files changed, 6 insertions, 0 deletions

diff --git a/main/db.c b/main/db.c
index 05ae26cc9..2a19ce931 100644
--- a/main/db.c
+++ b/main/db.c
@@ -946,8 +946,14 @@ static void *db_sync_thread(void *data)
 	return NULL;
 }
 
+/*! \internal \brief Clean up resources on Asterisk shutdown */
 static void astdb_atexit(void)
 {
+	ast_manager_unregister("DBGet");
+	ast_manager_unregister("DBPut");
+	ast_manager_unregister("DBDel");
+	ast_manager_unregister("DBDelTree");
+
 	/* Set doexit to 1 to kill thread. db_sync must be called with
 	 * mutex held. */
 	doexit = 1;