Implement flags for AGI in the channel structure so taht "show channels" and

AMI commands can display that a channel is under control of an AGI.

Work inspired by work at customer site, but paid for by Edvina AB


git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@128240 65c4cc65-6c06-0410-ace0-fbb531ad65f3

include/asterisk/channel.h

@@ -582,6 +582,12 @@ enum {
 	/*! This flag indicates that on a masquerade, an active stream should not
 	 *  be carried over */
 	AST_FLAG_MASQ_NOSTREAM = (1 << 16),
+	/*! If the flag is controlled by AGI (not FastAGI) */
+	AST_FLAG_AGI =           (1 << 17),
+	/*! If the flag is controlled by FastAGI  */
+	AST_FLAG_FASTAGI =       (1 << 18),
+	/*! If the flag is controlled by AsyncAGI  */
+	AST_FLAG_ASYNCAGI =      (1 << 19),
 };
 
 /*! \brief ast_bridge_config flags */

include/asterisk/pbx.h

@@ -998,6 +998,9 @@ struct ast_exten *pbx_find_extension(struct ast_channel *chan,
 									 const char *context, const char *exten, int priority,
 									 const char *label, const char *callerid, enum ext_match_t action);
 
+/*! \brief Function in pbx.c that propably should be somewhere else, but not in res_agi, since it's a loadable module */
+const char *agi_state(struct ast_channel *chan);
+
 
 /* every time a write lock is obtained for contexts,
    a counter is incremented. You can check this via the