nua: added backpointers to nua_dialog_usage_t and nua_dialog_state_t

darcs-hash:20070906163353-65a35-bf7c9c864d5bd2d4c6409b09401b05af7df61d1f.gz

libsofia-sip-ua/nua/nua_common.c

@@ -114,6 +114,7 @@ nua_handle_t *nh_create_handle(nua_t *nua,
     nh->nh_nua = nua;
     nh->nh_magic = hmagic;
     nh->nh_prefs = nua->nua_dhandle->nh_prefs;
+    nh->nh_ds->ds_owner = nh;
 
     if (nua_handle_save_tags(nh, tags) < 0) {
       SU_DEBUG_5(("nua(%p): creating handle %p failed\n",

libsofia-sip-ua/nua/nua_dialog.c

@@ -288,6 +288,8 @@ nua_dialog_usage_t *nua_dialog_usage_add(nua_owner_t *own,
       du = su_zalloc(own, sizeof *du + uclass->usage_size);
 
     if (du) {
+      su_home_ref(own);
+      du->du_dialog = ds; 
       du->du_class = uclass;
       du->du_event = o;
 
@@ -301,7 +303,6 @@ nua_dialog_usage_t *nua_dialog_usage_add(nua_owner_t *own,
 		  (void *)own, nua_dialog_usage_name(du), 
 		  o ? " with event " : "", o ? o->o_type :""));
 
-      su_home_ref(own);
       du->du_next = ds->ds_usage, ds->ds_usage = du;
 
       return du;

libsofia-sip-ua/nua/nua_dialog.h

@@ -319,6 +319,9 @@ struct nua_client_request
 
 struct nua_dialog_state
 {
+  /** Dialog owner */
+  nua_owner_t            *ds_owner;
+
   /** Dialog usages. */
   nua_dialog_usage_t     *ds_usage;
 
@@ -387,6 +390,7 @@ typedef struct {
 struct nua_dialog_usage {
   nua_dialog_usage_t *du_next;
   nua_usage_class const *du_class;
+  nua_dialog_state_t *du_dialog;
   nua_client_request_t *du_cr;	        /**< Client request bound with usage */
 
   unsigned     du_ready:1;	        /**< Established usage */