Add sync and async support in *testsrc

Make minumum alsa latency configurable.

pinos/client/stream.c

@@ -500,7 +500,6 @@ handle_rtnode_event (PinosStream  *stream,
   }
   else if (SPA_EVENT_TYPE (event) == context->type.event_node.NeedInput) {
     int i;
-    BufferId *bid;
 
     for (i = 0; i < impl->trans->area->n_outputs; i++) {
       SpaPortIO *output = &impl->trans->outputs[i];
@@ -516,7 +515,6 @@ handle_rtnode_event (PinosStream  *stream,
   }
   else if (SPA_EVENT_TYPE (event) == context->type.event_node.ReuseBuffer) {
     SpaEventNodeReuseBuffer *p = (SpaEventNodeReuseBuffer *) event;
-    BufferId *bid;
 
     if (p->body.port_id.value != impl->port_id)
       return;

pinos/modules/spa/spa-node.c

@@ -51,6 +51,8 @@ pinos_spa_node_load (PinosCore  *core,
   SpaEnumHandleFactoryFunc enum_func;
   const SpaHandleFactory *factory;
   void *iface;
+  SpaDictItem items[1];
+  SpaDict dict = SPA_DICT_INIT (1, items);
 
   if ((hnd = dlopen (lib, RTLD_NOW)) == NULL) {
     pinos_log_error ("can't load %s: %s", lib, dlerror());
@@ -71,10 +73,13 @@ pinos_spa_node_load (PinosCore  *core,
       break;
   }
 
+  items[0].key = "asynchronous";
+  items[0].value = "1";
+
   handle = calloc (1, factory->size);
   if ((res = spa_handle_factory_init (factory,
                                       handle,
-                                      NULL,
+                                      &dict,
                                       core->support,
                                       core->n_support)) < 0) {
     pinos_log_error ("can't make factory instance: %d", res);

pinos/server/client-node.c

@@ -798,14 +798,11 @@ static SpaResult
 spa_proxy_node_process_output (SpaNode *node)
 {
   SpaProxy *this;
-  PinosNode *pnode;
-  int i;
 
   if (node == NULL)
     return SPA_RESULT_INVALID_ARGUMENTS;
 
   this = SPA_CONTAINER_OF (node, SpaProxy, node);
-  pnode = this->pnode;
 
   send_need_input (this);