diff -r 7a1573676cc4 -r 2adca0f363fd greyhound.php
--- a/greyhound.php	Mon Mar 31 07:40:30 2008 -0400
+++ b/greyhound.php	Wed Apr 02 00:23:51 2008 -0400
@@ -25,9 +25,22 @@
   pcntl_signal(SIGINT,  'sigterm');
 }
 
+//
+// CONFIGURATION
+//
+
+// Listen on all interfaces. If this is false, it will only listen on
+// 127.0.0.1 (the loopback interface)
 $public = true;
+// Allow control of playback. By default this is turned on but if you
+// set this to false, it will only display the playlist.
 $allowcontrol = true;
+// The default theme. This should be a name of a directory in ./themes.
 $theme = 'funkymonkey';
+// Allow forking when an HTTP request is received. This has advantages
+// and disadvantages. If this experimental option is enabled, it will
+// result in faster responses and load times but more memory usage.
+$allow_fork = true;
 
 @ini_set('display_errors', 'on');
 
@@ -42,7 +55,7 @@
 
 // start up...
 
-status('Starting WebControl v0.1-hg');
+status('Starting Greyhound Web Control v0.1-hg');
 status('loading files');
 
 require('webserver.php');
@@ -99,7 +112,28 @@
   $httpd->add_handler('scripts',              'dir',      GREY_ROOT . '/scripts');
   $httpd->add_handler('favicon.ico',          'file',     GREY_ROOT . '/amarok_icon.ico');
   $httpd->add_handler('apple-touch-icon.png', 'file',     GREY_ROOT . '/apple-touch-icon.png');
+  // load all themes if forking is enabled
+  // Themes are loaded when the playlist is requested. This is fine for
+  // single-threaded operation, but if the playlist handler is only loaded
+  // in a child process, we need to preload all themes into the parent before
+  // children can respond to theme resource requests.
+  if ( $allow_fork )
+  {
+    status('Preloading themes');
+    
+    $dh = @opendir(GREY_ROOT . '/themes');
+    if ( !$dh )
+      burnout('Could not open themes directory');
+    while ( $dir = @readdir($dh) )
+    {
+      if ( $dir == '.' || $dir == '..' )
+        continue;
+      if ( is_dir( GREY_ROOT . "/themes/$dir" ) )
+        load_theme($dir);
+    }
+  }
   $httpd->allow_dir_list = true;
+  $httpd->allow_fork = ( $allow_fork ) ? true : false;
   $httpd->default_document = 'index';
   
   status("Entering main server loop - ^C to interrupt, listening on port $port");
@@ -109,4 +143,3 @@
 {
   burnout("Exception caught while running webserver:\n$e");
 }
-