make 'module unload chan_skinny.so' actually work.

(closes issue #13524)
Reported by: wedhorn
Patches:
      unload.diff uploaded by wedhorn (license 30)
	  With small tweak by me to prevent a crash

git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@143799 65c4cc65-6c06-0410-ace0-fbb531ad65f3

diff --git a/channels/chan_skinny.c b/channels/chan_skinny.c
index 6eb2c59..fde90cd 100644 (file)
--- a/channels/chan_skinny.c
+++ b/channels/chan_skinny.c
@@ -3555,6 +3555,7 @@ static int skinny_hangup(struct ast_channel *ast)
        }
        ast_mutex_unlock(&sub->lock);
        ast_free(sub);
+       ast_module_unref(ast_module_info->self);
        return 0;
 }
 
@@ -6065,7 +6066,6 @@ static void *accept_thread(void *ignore)
        struct skinnysession *s;
        struct protoent *p;
        int arg = 1;
-       pthread_t tcp_thread;
 
        for (;;) {
                sinlen = sizeof(sin);
@@ -6090,7 +6090,7 @@ static void *accept_thread(void *ignore)
                AST_LIST_INSERT_HEAD(&sessions, s, list);
                AST_LIST_UNLOCK(&sessions);
 
-               if (ast_pthread_create_detached(&tcp_thread, NULL, skinny_session, s)) {
+               if (ast_pthread_create_detached(&s->t, NULL, skinny_session, s)) {
                        destroy_session(s);
                }
        }
@@ -6465,6 +6465,10 @@ static int unload_module(void)
        struct skinny_subchannel *sub;
        struct ast_context *con;
 
+       ast_rtp_proto_unregister(&skinny_rtp);
+       ast_channel_unregister(&skinny_tech);
+       ast_cli_unregister_multiple(cli_skinny, sizeof(cli_skinny) / sizeof(struct ast_cli_entry));
+       
        AST_LIST_LOCK(&sessions);
        /* Destroy all the interfaces and free their memory */
        while((s = AST_LIST_REMOVE_HEAD(&sessions, list))) {
@@ -6482,9 +6486,13 @@ static int unload_module(void)
                        if (l->mwi_event_sub)
                                ast_event_unsubscribe(l->mwi_event_sub);
                        ast_mutex_unlock(&l->lock);
+                       unregister_exten(l);
                }
                if (s->fd > -1)
                        close(s->fd);
+               pthread_cancel(s->t);
+               pthread_kill(s->t, SIGURG);
+               pthread_join(s->t, NULL);
                free(s);
        }
        AST_LIST_UNLOCK(&sessions);
@@ -6509,10 +6517,6 @@ static int unload_module(void)
        accept_t = AST_PTHREADT_STOP;
        ast_mutex_unlock(&netlock);
 
-       ast_rtp_proto_unregister(&skinny_rtp);
-       ast_channel_unregister(&skinny_tech);
-       ast_cli_unregister_multiple(cli_skinny, sizeof(cli_skinny) / sizeof(struct ast_cli_entry));
-
        close(skinnysock);
        if (sched)
                sched_context_destroy(sched);