Added proxy nodes in the dynamic translator stack

When setting dynamic translators, nsmux used to offer the client
a port to the dynamic translator directly. Now it gives off a
proxy node, which contains a port to the translator. Also, proxy
nodes are now included in dynamic translator stacks. Dynamic
translator stacks now consist of the following interconnected
conceptual blocks:

  -- shadow node -- translator -- proxy node --

1 files changed, 11 insertions, 1 deletions

diff --git a/node.h b/node.h
index 9ae760f01..7cb154386 100644
--- a/node.h
+++ b/node.h
@@ -151,9 +151,19 @@ error_t node_unlink_file (node_t * dir, char *name);
 /*Starts translator `trans` on the (shadow) node `np`, which should
   mirror the file `filename`, and returns the port `port` to the root
   of the translator opened as `flags.`*/
-error_t 
+error_t
   node_set_translator
   (struct protid *diruser, node_t * np, char * trans, int flags,
    char * filename, mach_port_t * port);
 /*---------------------------------------------------------------------------*/
+/*Gets the port to the supplied node. */
+error_t
+  node_get_port
+  (struct protid * diruser, node_t * np, int flags, mach_port_t * port);
+/*---------------------------------------------------------------------------*/
+/*Gets the send port right to the supplied node. */
+error_t
+  node_get_send_port
+  (struct protid * diruser, node_t * np, int flags, mach_port_t * port);
+/*---------------------------------------------------------------------------*/
 #endif /*__NODE_H__*/