Fix reload/unload for res_musiconhold module.

(closes issue #11575)
Reported by: sunder
Patches:
      M11575_14_rev3.diff uploaded by junky (license 177)
      bug11575_trunk.diff.txt uploaded by jamesgolovich (license 176)

git-svn-id: https://origsvn.digium.com/svn/asterisk/branches/1.4@114594 65c4cc65-6c06-0410-ace0-fbb531ad65f3

diff --git a/res/res_musiconhold.c b/res/res_musiconhold.c
index b2a92ae57e3f600b997f14a8097c702b362e3f29..0406a17968b11cba940ef6ecc90dca8bd3040d21 100644 (file)
--- a/res/res_musiconhold.c
+++ b/res/res_musiconhold.c
@@ -869,18 +869,16 @@ static int moh_register(struct mohclass *moh, int reload)
        int x;
 #endif
        struct mohclass *mohclass = NULL;
+       int res = 0;
 
        AST_LIST_LOCK(&mohclasses);
        if ((mohclass = get_mohbyname(moh->name, 0))) {
-               mohclass->delete = 0;
-               if (reload) {
-                       ast_log(LOG_DEBUG, "Music on Hold class '%s' left alone from initial load.\n", moh->name);
-               } else {
-                       ast_log(LOG_WARNING, "Music on Hold class '%s' already exists\n", moh->name);
-               }
-               free(moh);      
-               AST_LIST_UNLOCK(&mohclasses);
-               return -1;
+               if (!mohclass->delete) {
+                       ast_log(LOG_WARNING, "Music on Hold class '%s' already exists\n", moh->name);
+                       free(moh);
+                       AST_LIST_UNLOCK(&mohclasses);
+                       return -1;
+               }
        }
        AST_LIST_UNLOCK(&mohclasses);
 
@@ -888,7 +886,12 @@ static int moh_register(struct mohclass *moh, int reload)
        moh->start -= respawn_time;
        
        if (!strcasecmp(moh->mode, "files")) {
-               if (!moh_scan_files(moh)) {
+               res = moh_scan_files(moh);
+               if (res <= 0) {
+                       if (res == 0) {
+                                if (option_verbose > 2)
+                                       ast_verbose(VERBOSE_PREFIX_3 "Files not found in %s for moh class:%s\n", moh->dir, moh->name);
+                       }
                        ast_moh_free_class(&moh);
                        return -1;
                }
@@ -1273,14 +1276,6 @@ static int init_classes(int reload)
                        AST_LIST_REMOVE_CURRENT(&mohclasses, list);
                        if (!moh->inuse)
                                ast_moh_destroy_one(moh);
-               } else if (moh->total_files) {
-                       if (moh_scan_files(moh) <= 0) {
-                               ast_log(LOG_WARNING, "No files found for class '%s'\n", moh->name);
-                               moh->delete = 1;
-                               AST_LIST_REMOVE_CURRENT(&mohclasses, list);
-                               if (!moh->inuse)
-                                       ast_moh_destroy_one(moh);
-                       }
                }
        }
        AST_LIST_TRAVERSE_SAFE_END
@@ -1324,7 +1319,31 @@ static int reload(void)
 
 static int unload_module(void)
 {
-       return -1;
+       int res = 0;
+       struct mohclass *class = NULL;
+
+       AST_LIST_LOCK(&mohclasses);
+       AST_LIST_TRAVERSE(&mohclasses, class, list) {
+               if (class->inuse > 0) {
+                       res = -1;
+                       break;
+               }
+       }
+       AST_LIST_UNLOCK(&mohclasses);
+       if (res < 0) {
+               ast_log(LOG_WARNING, "Unable to unload res_musiconhold due to active MOH channels\n");
+               return res;
+       }
+
+       ast_uninstall_music_functions();
+       ast_moh_destroy();
+       res = ast_unregister_application(app0);
+       res |= ast_unregister_application(app1);
+       res |= ast_unregister_application(app2);
+       res |= ast_unregister_application(app3);
+       res |= ast_unregister_application(app4);
+       ast_cli_unregister_multiple(cli_moh, sizeof(cli_moh) / sizeof(struct ast_cli_entry));
+       return res;
 }
 
 AST_MODULE_INFO(ASTERISK_GPL_KEY, AST_MODFLAG_GLOBAL_SYMBOLS, "Music On Hold Resource",