Merged revisions 127133 via svnmerge from

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

........
r127133 | tilghman | 2008-07-01 15:25:37 -0500 (Tue, 01 Jul 2008) | 2 lines

Disable the old, slow search for matching callno in chan_iax2 (but allow it to be reenabled for debugging)

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git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@127143 65c4cc65-6c06-0410-ace0-fbb531ad65f3

build_tools/cflags.xml

@@ -42,4 +42,6 @@
 		<member name="BUSYDETECT_DEBUG" displayname="Enable additional busy detection debugging">
 			<defaultenabled>no</defaultenabled>
 		</member>
+		<member name="IAX_OLD_FIND" displayname="Use the old, slow method of searching for IAX callnos">
+		</member>
 	</category>

channels/chan_iax2.c

@@ -1657,6 +1657,18 @@ static int __find_callno(unsigned short callno, unsigned short dcallno, struct s
 			return res;
 		}
 
+#ifdef IAX_OLD_FIND
+		/* If we get here, we SHOULD NOT find a call structure for this
+		   callno; if we do, it means that there is a call structure that
+		   has a peer callno but did NOT get entered into the hash table,
+		   which is bad.
+
+		   If we find a call structure using this old, slow method, output a log
+		   message so we'll know about it. After a few months of leaving this in
+		   place, if we don't hear about people seeing these messages, we can
+		   remove this code for good.
+		*/
+
 		for (x = 1; !res && x < maxnontrunkcall; x++) {
 			ast_mutex_lock(&iaxsl[x]);
 			if (iaxs[x]) {
@@ -1679,6 +1691,7 @@ static int __find_callno(unsigned short callno, unsigned short dcallno, struct s
 			if (!res || !return_locked)
 				ast_mutex_unlock(&iaxsl[x]);
 		}
+#endif
 	}
 	if (!res && (new >= NEW_ALLOW)) {
 		int start, found = 0;