--- rxvt-unicode/src/iom.h	2003/12/02 21:49:46	1.4
+++ rxvt-unicode/src/iom.h	2003/12/19 06:17:03	1.5
@@ -28,6 +28,7 @@
 #define IOM_IO 1
 #define IOM_TIME 1
 #define IOM_CHECK 1
+#define IOM_IDLE 0
 
 #if IOM_IO
   typedef double tstamp;
@@ -41,6 +42,9 @@
 #if IOM_CHECK
   struct check_watcher;
 #endif
+#if IOM_IDLE
+  struct idle_watcher;
+#endif
 
 class io_manager {
 #if IOM_IO
@@ -52,6 +56,9 @@
 #if IOM_TIME
   simplevec<time_watcher *>  tw;
 #endif
+#if IOM_IDLE
+  simplevec<idle_watcher *>  iw;
+#endif
 
   template<class watcher>
   void reg (watcher *w, simplevec<watcher *> &queue);
@@ -62,14 +69,17 @@
 public:
   // register a watcher
 #if IOM_IO
-  void reg (io_watcher   *w);  void unreg (io_watcher   *w);
+  void reg (io_watcher    *w); void unreg (io_watcher    *w);
 #endif
 #if IOM_TIME
-  void reg (time_watcher *w);  void unreg (time_watcher *w);
+  void reg (time_watcher  *w); void unreg (time_watcher  *w);
 #endif
 #if IOM_CHECK
   void reg (check_watcher *w); void unreg (check_watcher *w);
 #endif
+#if IOM_IDLE
+  void reg (idle_watcher  *w); void unreg (idle_watcher  *w);
+#endif
   
   void loop ();
 
@@ -93,9 +103,10 @@
 
   ~io_watcher ();
 
-  void set(int fd_, short events_) { fd = fd_; events = events_; }
+  void set (int fd_, short events_) { fd = fd_; events = events_; }
 
-  void set(short events_) { set (fd, events_); }
+  void set (short events_) { set (fd, events_); }
+  void start () { iom.reg (this); }
   void start (int fd_, short events_) { set (fd_, events_); iom.reg (this); }
   void stop () { iom.unreg (this); }
 };
@@ -142,6 +153,21 @@
 
   void start () { iom.reg (this); }
   void stop () { iom.unreg (this); }
+};
+#endif
+
+#if IOM_IDLE
+// run after checking for any i/o, but before waiting
+struct idle_watcher : callback1<void, idle_watcher &> {
+  template<class O1, class O2>
+  idle_watcher (O1 *object, void (O2::*method)(idle_watcher &))
+    : callback1<void, idle_watcher &>(object,method)
+    { }
+
+  ~idle_watcher ();
+
+  void start () { iom.reg (this); }
+  void stop () { iom.unreg (this); }
 };
 #endif