Merged revisions 285373 via svnmerge from

https://origsvn.digium.com/svn/asterisk/branches/1.8

........
  r285373 | tilghman | 2010-09-07 16:14:03 -0500 (Tue, 07 Sep 2010) | 7 lines
  
  Add CHANNEL(checkhangup) to check whether a channel is in the process of being hanged up.
  
  (closes issue #17652)
   Reported by: kobaz
   Patches: 
         func_channel.patch uploaded by kobaz (license 834)
........


git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@285374 65c4cc65-6c06-0410-ace0-fbb531ad65f3

funcs/func_channel.c

@@ -88,6 +88,9 @@ ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
 					<enum name="channeltype">
 						<para>R/O technology used for channel.</para>
 					</enum>
+					<enum name="checkhangup">
+						<para>1/0 whether the channel is hanging up</para>
+					</enum>
 					<enum name="language">
 						<para>R/W language for sounds played.</para>
 					</enum>
@@ -298,7 +301,11 @@ static int func_channel_read(struct ast_channel *chan, const char *function,
 		locked_copy_string(chan, buf, chan->tech->type, len);
 	else if (!strcasecmp(data, "accountcode"))
 		locked_copy_string(chan, buf, chan->accountcode, len);
-	else if (!strcasecmp(data, "peeraccount"))
+	else if (!strcasecmp(data, "checkhangup")) {
+		ast_channel_lock(chan);
+		ast_copy_string(buf, ast_check_hangup(chan) ? "1" : "0", len);
+		ast_channel_unlock(chan);
+	} else if (!strcasecmp(data, "peeraccount"))
 		locked_copy_string(chan, buf, chan->peeraccount, len);
 	else if (!strcasecmp(data, "hangupsource"))
 		locked_copy_string(chan, buf, chan->hangupsource, len);