Merged revisions 94801 via svnmerge from

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

........
r94801 | russell | 2007-12-26 13:04:31 -0600 (Wed, 26 Dec 2007) | 4 lines

Just in case the AST_FLAG_END_DTMF_ONLY flag was already set before starting
autoservice, remember it and ensure that the channel has the same setting when
autoservice gets stopped.  (pointed out by d1mas, patched up by me)

........


git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@94802 65c4cc65-6c06-0410-ace0-fbb531ad65f3

main/autoservice.c

@@ -51,6 +51,7 @@ struct asent {
 	 *  channel.  It will ensure that it doesn't actually get stopped until 
 	 *  it gets stopped for the last time. */
 	unsigned int use_count;
+	unsigned int orig_end_dtmf_flag:1;
 	AST_LIST_HEAD_NOLOCK(, ast_frame) dtmf_frames;
 	AST_LIST_ENTRY(asent) list;
 };
@@ -151,42 +152,50 @@ int ast_autoservice_start(struct ast_channel *chan)
 	struct asent *as;
 
 	AST_RWLIST_WRLOCK(&aslist);
-
-	/* Check if the channel already has autoservice */
 	AST_RWLIST_TRAVERSE(&aslist, as, list) {
 		if (as->chan == chan) {
 			as->use_count++;
 			break;
 		}
 	}
+	AST_RWLIST_UNLOCK(&aslist);
 
-	/* If not, start autoservice on channel */
 	if (as) {
-		/* Entry extist, autoservice is already handling this channel */
-	} else if ((as = ast_calloc(1, sizeof(*as))) == NULL) {
-		/* Memory allocation failed */
-		res = -1;
-	} else {
-		/* New entry created */
-		as->chan = chan;
-		ast_set_flag(chan, AST_FLAG_END_DTMF_ONLY);
-		as->use_count = 1;
-		AST_RWLIST_INSERT_HEAD(&aslist, as, list);
-		if (asthread == AST_PTHREADT_NULL) { /* need start the thread */
-			if (ast_pthread_create_background(&asthread, NULL, autoservice_run, NULL)) {
-				ast_log(LOG_WARNING, "Unable to create autoservice thread :(\n");
-				/* There will only be a single member in the list at this point,
-				   the one we just added. */
-				AST_RWLIST_REMOVE(&aslist, as, list);
-				ast_free(as);
-				res = -1;
-			} else
-				pthread_kill(asthread, SIGURG);
-		}
+		/* Entry exists, autoservice is already handling this channel */
+		return 0;
 	}
 
+	if (!(as = ast_calloc(1, sizeof(*as))))
+		return -1;
+	
+	/* New entry created */
+	as->chan = chan;
+	as->use_count = 1;
+
+	ast_channel_lock(chan);
+	as->orig_end_dtmf_flag = ast_test_flag(chan, AST_FLAG_END_DTMF_ONLY) ? 1 : 0;
+	if (!as->orig_end_dtmf_flag)
+		ast_set_flag(chan, AST_FLAG_END_DTMF_ONLY);
+	ast_channel_unlock(chan);
+
+	AST_RWLIST_WRLOCK(&aslist);
+	AST_RWLIST_INSERT_HEAD(&aslist, as, list);
 	AST_RWLIST_UNLOCK(&aslist);
 
+	if (asthread == AST_PTHREADT_NULL) { /* need start the thread */
+		if (ast_pthread_create_background(&asthread, NULL, autoservice_run, NULL)) {
+			ast_log(LOG_WARNING, "Unable to create autoservice thread :(\n");
+			/* There will only be a single member in the list at this point,
+			   the one we just added. */
+			AST_RWLIST_WRLOCK(&aslist);
+			AST_RWLIST_REMOVE(&aslist, as, list);
+			AST_RWLIST_UNLOCK(&aslist);
+			free(as);
+			res = -1;
+		} else
+			pthread_kill(asthread, SIGURG);
+	}
+
 	return res;
 }
 
@@ -197,6 +206,7 @@ int ast_autoservice_stop(struct ast_channel *chan)
 	AST_LIST_HEAD_NOLOCK(, ast_frame) dtmf_frames;
 	struct ast_frame *f;
 	int removed = 0;
+	int orig_end_dtmf_flag = 0;
 
 	AST_LIST_HEAD_INIT_NOLOCK(&dtmf_frames);
 
@@ -208,11 +218,11 @@ int ast_autoservice_stop(struct ast_channel *chan)
 			if (as->use_count)
 				break;
 			AST_LIST_APPEND_LIST(&dtmf_frames, &as->dtmf_frames, frame_list);
+			orig_end_dtmf_flag = as->orig_end_dtmf_flag;
 			ast_free(as);
 			removed = 1;
 			if (!ast_check_hangup(chan))
 				res = 0;
-			ast_clear_flag(chan, AST_FLAG_END_DTMF_ONLY);
 			break;
 		}
 	}
@@ -226,6 +236,9 @@ int ast_autoservice_stop(struct ast_channel *chan)
 	if (!removed)
 		return 0;
 
+	if (!orig_end_dtmf_flag)
+		ast_clear_flag(chan, AST_FLAG_END_DTMF_ONLY);
+
 	/* Wait for it to un-block */
 	while (ast_test_flag(chan, AST_FLAG_BLOCKING))
 		usleep(1000);