Mixer: Allow clients to query for available OSC paths.

mixer/src/Controller_Module.C

@@ -106,7 +106,8 @@ Controller_Module::generate_osc_path ()
 
     char *path;
 
-    asprintf( &path, "/mixer/%s/%s/%s", chain()->name(), p->module()->label(), p->name() );
+    // /mixer/strip/STRIPNAME/control/MODULENAME/CONTROLNAME
+    asprintf( &path, "/mixer/strip/%s/control/%s/%s", chain()->name(), p->module()->label(), p->name() );
 
     // Hack to keep spaces out of OSC URL... Probably need to handle other special characters similarly.
     for ( int i = strlen( path ); i--; )
@@ -115,7 +116,6 @@ Controller_Module::generate_osc_path ()
             path[i] = '_';
     }
 
-
     return path;
 }
 
@@ -133,7 +133,7 @@ Controller_Module::change_osc_path ( char *path )
 
     if ( path )
     {
-	mixer->osc_endpoint->add_method( path, "f", &Controller_Module::osc_control_change, this );
+	mixer->osc_endpoint->add_method( path, "f", &Controller_Module::osc_control_change, this, "value" );
 
 	_osc_path = path;
 

mixer/src/Mixer.C

@@ -65,12 +65,6 @@ extern char *user_config_dir;
 /* OSC Message Handlers */
 /************************/
 
-OSC_HANDLER( generic )
-{
-    OSC_DMSG();
-
-    return 0;
-}
 
 OSC_HANDLER( quit )
 {
@@ -125,14 +119,9 @@ OSC_HANDLER( new )
     return 0;
 }
 
-OSC_HANDLER( root )
-{
-   OSC_DMSG();
-
-   OSC_REPLY( "load\nsave\nquit\nnew\n");
-
-   return 0;
-}
+// OSC_HANDLER( root )
+// {
+// }
 
 OSC_HANDLER( add_strip )
 {
@@ -395,14 +384,13 @@ Mixer::init_osc ( const char *osc_port )
 
     // if ( 1 >= lo_send_from( src, ((Mixer*)user_data)->osc_endpoint, LO_TT_IMMEDIATE, "/finger-reply", "s", s ) )
 
-    osc_endpoint->add_method( "/nsm/quit", "", OSC_NAME( quit ), this );
-    osc_endpoint->add_method( "/nsm/load", "ss", OSC_NAME( load ), this );
-    osc_endpoint->add_method( "/nsm/save", "", OSC_NAME( save ), this );
-    osc_endpoint->add_method( "/nsm/new", "ss", OSC_NAME( new ), this );
-    osc_endpoint->add_method( "/nsm/", "", OSC_NAME( root ), this );
-    osc_endpoint->add_method( "/finger", "", OSC_NAME( finger ), this );
-    osc_endpoint->add_method( "/mixer/add_strip", "", OSC_NAME( add_strip ), this );
-//    osc_endpoint->add_method( NULL, "", osc_generic, this );
+    osc_endpoint->add_method( "/nsm/quit", "", OSC_NAME( quit ), this, "" );
+    osc_endpoint->add_method( "/nsm/load", "ss", OSC_NAME( load ), this, "path,display_name" );
+    osc_endpoint->add_method( "/nsm/save", "", OSC_NAME( save ), this, "" );
+    osc_endpoint->add_method( "/nsm/new", "ss", OSC_NAME( new ), this, "path,display_name" );
+//    osc_endpoint->add_method( "/nsm/", "", OSC_NAME( root ), this );
+    osc_endpoint->add_method( "/finger", "", OSC_NAME( finger ), this, "" );
+    osc_endpoint->add_method( "/mixer/add_strip", "", OSC_NAME( add_strip ), this, "" );
   
 //    osc_endpoint->start();
 

nonlib/OSC/Endpoint.C

@@ -21,6 +21,7 @@
 #include "debug.h"
 #include <stdlib.h>
 #include <stdio.h>
+#include <string.h>
 
 #include "Endpoint.H"
 
@@ -48,6 +49,11 @@ namespace OSC
         char *url = lo_server_get_url(_server);
         printf("OSC: %s\n",url);
         free(url);
+
+
+        add_method( NULL, "", &Endpoint::osc_generic, this, "" );
+
+//        _path_names = new std::list<const char*>();
     }
 
     Endpoint::~Endpoint ( )
@@ -56,12 +62,63 @@ namespace OSC
         lo_server_free( _server );
     }
 
+
+    int
+    Endpoint::osc_generic ( const char *path, const char *types, lo_arg **argv, int argc, lo_message msg, void *user_data )
+    {
+        OSC_DMSG();
+
+        if ( path[ strlen(path) - 1 ] != '/' )
+        {
+            DMESSAGE( "Unknown OSC signal %s", path );
+            return 0;
+        }
+
+        char *paths = ((Endpoint*)user_data)->get_paths( path );
+
+        ((Endpoint*)user_data)->send( lo_message_get_source( msg ), "/reply", path, paths );
+
+        free(paths);
+
+        return 0;
+    }
+
+    // returns a malloc()'d string containing path names beginning with /prefix/, newline separated
+    char *
+    Endpoint::get_paths ( const char *prefix )
+    {
+        char *r = (char*)malloc( 1024 );
+        r[0] = 0;
+        
+        for ( std::list<char*>::iterator i = _path_names.begin(); i != _path_names.end(); ++i )
+        {
+            if ( ! *i )
+                continue;
+
+            if (! strncmp( *i, prefix, strlen(prefix) ) )
+            {
+                r = (char*)realloc( r, strlen( r ) + strlen( *i ) + 2 );
+
+                strcat( r, *i );
+                strcat( r, "\n" );
+            }
+        }
+
+        return r;
+    }
+
     void
-    Endpoint::add_method ( const char *path, const char *typespec, lo_method_handler handler, void *user_data )
+    Endpoint::add_method ( const char *path, const char *typespec, lo_method_handler handler, void *user_data, const char *argument_description )
     {
 	DMESSAGE( "Added OSC method %s (%s)", path, typespec );
  
         lo_server_add_method( _server, path, typespec, handler, user_data );
+
+        char *stored_path;
+
+        asprintf( &stored_path, "%s (%s); %s", path, typespec, argument_description );
+
+        _path_names.push_back( stored_path );
     }
 
     void
@@ -70,6 +127,18 @@ namespace OSC
 	DMESSAGE( "Deleted OSC method %s (%s)", path, typespec );
 
         lo_server_del_method( _server, path, typespec );
+
+        for ( std::list<char *>::iterator i = _path_names.begin(); i != _path_names.end(); ++i )
+        {
+            if ( ! *i )
+                continue;
+
+            if ( ! strncmp( path, *i, index( *i, ' ' ) - *i ) )
+            {
+                free( *i );
+                i = _path_names.erase( i );
+            }
+        }
     }
 
 /* void * */
@@ -146,7 +215,6 @@ namespace OSC
         }
     }
 
-
     int
     Endpoint::send ( lo_address to, const char *path, std::list< OSC_Value > values )
     {

nonlib/OSC/Endpoint.H

@@ -109,18 +109,24 @@ namespace OSC
     {
         static void error_handler(int num, const char *msg, const char *path);
 
+
+        static int osc_generic ( const char *path, const char *types, lo_arg **argv, int argc, lo_message msg, void *user_data );
+
 //    Thread _thread;
 
 //    lo_server_thread _st;
         lo_server _server;
 
+        std::list<char*> _path_names;
+
     public:
 
         Endpoint ( const char *port = 0 );
 
         ~Endpoint ( );
 
-        void add_method ( const char *path, const char *typespec, lo_method_handler handler, void *user_data );
+        char *get_paths ( const char *prefix );
+        void add_method ( const char *path, const char *typespec, lo_method_handler handler, void *user_data, const char *argument_description );
         void del_method ( const char *path, const char *typespec );
         void start ( void );
         void stop ( void );