Merged revisions 123165 via svnmerge from

https://origsvn.digium.com/svn/asterisk/trunk

........
r123165 | murf | 2008-06-16 14:43:46 -0600 (Mon, 16 Jun 2008) | 19 lines

(closes issue #12689)
Reported by: ys

Many thanks to ys for doing the research on this problem.
I didn't think it would be best to unlock the contexts
and then relock them after the remove_extension2() call,
so I added an extra arg to remove_extension2() and set it
appropriately in each call. There were not that many.

I considered forcing the code to lock the contexts before
the call to remove_extension2(), but that would require
a slightly greater degree of changes, especially since
the find_context_locked is local to pbx.c

I did a simple sanity test to make sure the code doesn't
mess things up in general.



........


git-svn-id: http://svn.digium.com/svn/asterisk/branches/1.6.0@123173 f38db490-d61c-443f-a65b-d21fe96a405b

6 files changed, 18 insertions, 14 deletions

diff --git a/apps/app_dial.c b/apps/app_dial.c
index 0af35f317..5dd160217 100644
--- a/apps/app_dial.c
+++ b/apps/app_dial.c
@@ -2070,7 +2070,7 @@ static int unload_module(void)
 	res |= ast_unregister_application(rapp);
 
 	if ((con = ast_context_find("app_dial_gosub_virtual_context"))) {
-		ast_context_remove_extension2(con, "s", 1, NULL);
+		ast_context_remove_extension2(con, "s", 1, NULL, 0);
 		ast_context_destroy(con, "app_dial"); /* leave nothing behind */
 	}
 
diff --git a/apps/app_queue.c b/apps/app_queue.c
index 6d61e8e52..901043d82 100644
--- a/apps/app_queue.c
+++ b/apps/app_queue.c
@@ -6217,7 +6217,7 @@ static int unload_module(void)
 		ast_event_unsubscribe(device_state_sub);
 
 	if ((con = ast_context_find("app_queue_gosub_virtual_context"))) {
-		ast_context_remove_extension2(con, "s", 1, NULL);
+		ast_context_remove_extension2(con, "s", 1, NULL, 0);
 		ast_context_destroy(con, "app_queue"); /* leave no trace */
 	}
 
diff --git a/apps/app_stack.c b/apps/app_stack.c
index 9e6c0dadd..3dc06904f 100644
--- a/apps/app_stack.c
+++ b/apps/app_stack.c
@@ -493,7 +493,7 @@ static int unload_module(void)
 		ast_agi_unregister(ast_module_info->self, &gosub_agi_command);
 
 		if ((con = ast_context_find("app_stack_gosub_virtual_context"))) {
-			ast_context_remove_extension2(con, "s", 1, NULL);
+			ast_context_remove_extension2(con, "s", 1, NULL, 0);
 			ast_context_destroy(con, "app_stack"); /* leave nothing behind */
 		}
 	}
diff --git a/include/asterisk/pbx.h b/include/asterisk/pbx.h
index ebbe9b6a3..f73ac4454 100644
--- a/include/asterisk/pbx.h
+++ b/include/asterisk/pbx.h
@@ -607,7 +607,7 @@ int ast_context_remove_extension(const char *context, const char *extension, int
 	const char *registrar);
 
 int ast_context_remove_extension2(struct ast_context *con, const char *extension,
-	int priority, const char *registrar);
+	int priority, const char *registrar, int already_locked);
 
 /*! 
  * \brief Add an ignorepat
diff --git a/main/features.c b/main/features.c
index a5ce06490..ecaf6cc39 100644
--- a/main/features.c
+++ b/main/features.c
@@ -2312,7 +2312,7 @@ static void *do_parking_thread(void *ignore)
 				AST_LIST_REMOVE_CURRENT(list);
 				con = ast_context_find(parking_con);
 				if (con) {
-					if (ast_context_remove_extension2(con, pu->parkingexten, 1, NULL))
+					if (ast_context_remove_extension2(con, pu->parkingexten, 1, NULL, 0))
 						ast_log(LOG_WARNING, "Whoa, failed to remove the extension!\n");
 					else
 						notify_metermaids(pu->parkingexten, parking_con, AST_DEVICE_NOT_INUSE);
@@ -2346,7 +2346,7 @@ static void *do_parking_thread(void *ignore)
 						AST_LIST_REMOVE_CURRENT(list);
 						con = ast_context_find(parking_con);
 						if (con) {
-							if (ast_context_remove_extension2(con, pu->parkingexten, 1, NULL))
+							if (ast_context_remove_extension2(con, pu->parkingexten, 1, NULL, 0))
 								ast_log(LOG_WARNING, "Whoa, failed to remove the extension!\n");
 							else
 								notify_metermaids(pu->parkingexten, parking_con, AST_DEVICE_NOT_INUSE);
@@ -2465,7 +2465,7 @@ static int park_exec(struct ast_channel *chan, void *data)
 		peer = pu->chan;
 		con = ast_context_find(parking_con);
 		if (con) {
-			if (ast_context_remove_extension2(con, pu->parkingexten, 1, NULL))
+			if (ast_context_remove_extension2(con, pu->parkingexten, 1, NULL, 0))
 				ast_log(LOG_WARNING, "Whoa, failed to remove the extension!\n");
 			else
 				notify_metermaids(pu->parkingexten, parking_con, AST_DEVICE_NOT_INUSE);
@@ -2850,7 +2850,7 @@ static int load_config(void)
 
 	/* Remove the old parking extension */
 	if (!ast_strlen_zero(old_parking_con) && (con = ast_context_find(old_parking_con)))	{
-		if(ast_context_remove_extension2(con, old_parking_ext, 1, registrar))
+		if(ast_context_remove_extension2(con, old_parking_ext, 1, registrar, 0))
 				notify_metermaids(old_parking_ext, old_parking_con, AST_DEVICE_NOT_INUSE);
 		ast_debug(1, "Removed old parking extension %s@%s\n", old_parking_ext, old_parking_con);
 	}
diff --git a/main/pbx.c b/main/pbx.c
index 2733af523..1870b776f 100644
--- a/main/pbx.c
+++ b/main/pbx.c
@@ -3979,7 +3979,7 @@ int ast_context_remove_extension(const char *context, const char *extension, int
 	struct ast_context *c = find_context_locked(context);
 
 	if (c) { /* ... remove extension ... */
-		ret = ast_context_remove_extension2(c, extension, priority, registrar);
+		ret = ast_context_remove_extension2(c, extension, priority, registrar, 1);
 		ast_unlock_contexts();
 	}
 	return ret;
@@ -3995,14 +3995,15 @@ int ast_context_remove_extension(const char *context, const char *extension, int
  * it.
  *
  */
-int ast_context_remove_extension2(struct ast_context *con, const char *extension, int priority, const char *registrar)
+int ast_context_remove_extension2(struct ast_context *con, const char *extension, int priority, const char *registrar, int already_locked)
 {
 	struct ast_exten *exten, *prev_exten = NULL;
 	struct ast_exten *peer;
 	struct ast_exten ex, *exten2, *exten3;
 	char dummy_name[1024];
 
-	ast_wrlock_context(con);
+	if (!already_locked)
+		ast_wrlock_context(con);
 
 	/* Handle this is in the new world */
 
@@ -4085,7 +4086,8 @@ int ast_context_remove_extension2(struct ast_context *con, const char *extension
 	}
 	if (!exten) {
 		/* we can't find right extension */
-		ast_unlock_context(con);
+		if (!already_locked)
+			ast_unlock_context(con);
 		return -1;
 	}
 
@@ -4112,7 +4114,8 @@ int ast_context_remove_extension2(struct ast_context *con, const char *extension
 				break; /* found our priority */
 		}
 		if (!peer) { /* not found */
-			ast_unlock_context(con);
+			if (!already_locked)
+				ast_unlock_context(con);
 			return -1;
 		}
 		/* we are first priority extension? */
@@ -4145,7 +4148,8 @@ int ast_context_remove_extension2(struct ast_context *con, const char *extension
 		destroy_exten(peer);
 		/* XXX should we return -1 ? */
 	}
-	ast_unlock_context(con);
+	if (!already_locked)
+		ast_unlock_context(con);
 	return 0;
 }