--- gvpe/src/iom.h	2003/04/02 05:15:00	1.9
+++ gvpe/src/iom.h	2003/04/04 05:26:45	1.11
@@ -21,6 +21,8 @@
 
 #include <vector>
 
+#include <cassert>
+
 #include <sys/poll.h>
 
 #include "callback.h"
@@ -35,16 +37,16 @@
 
 class io_manager {
   vector<pollfd> pfs;
-  vector<const io_watcher *> iow;
+  vector<io_watcher *> iow;
   vector<time_watcher *> tw; // actually a heap
 
-  void idle_cb (tstamp &ts); time_watcher *idle;
+  void idle_cb (time_watcher &w); time_watcher *idle;
 public:
 
   void reschedule_time_watchers ();
 
   // register a watcher
-  void reg (int fd, short events, io_watcher *w);
+  void reg (io_watcher *w);
   void unreg (io_watcher *w);
   void reg (time_watcher *w);
   void unreg (time_watcher *w);
@@ -55,22 +57,37 @@
   ~io_manager ();
 };
 
-extern io_manager iom;
+extern io_manager iom; // a singleton, together with it's construction/destruction problems.
+
+struct io_watcher : callback2<void, io_watcher &, short> {
+  pollfd *p;
 
-struct io_watcher : callback2<void, int, short> {
   template<class O1, class O2>
-  io_watcher (O1 *object, void (O2::*method)(int fd, short revents))
-    : callback2<void, int, short>(object,method)
+  io_watcher (O1 *object, void (O2::*method)(io_watcher &, short))
+    : callback2<void, io_watcher &, short>(object,method)
     { }
 
-  ~io_watcher ()
+  ~io_watcher ();
+
+  void set(int fd, short events)
     {
-      iom.unreg (this);
+      assert (p);
+      p->fd     = fd;
+      p->events = events;
+    }
+
+  void set(short events)
+    {
+      assert (p);
+      p->events = events;
     }
 
   void start (int fd, short events)
     {
-      iom.reg (fd, events, this);
+      iom.reg (this); // make sure pfd is set
+
+      p->fd     = fd;
+      p->events = events;
     }
 
   void stop ()
@@ -81,20 +98,17 @@
 
 #define TSTAMP_CANCEL -1.
 
-struct time_watcher : callback1<void, tstamp &> {
+struct time_watcher : callback1<void, time_watcher &> {
   bool registered; // already registered?
   tstamp at;
 
   template<class O1, class O2>
-  time_watcher (O1 *object, void (O2::*method)(tstamp &))
-    : callback1<void, tstamp &>(object,method)
+  time_watcher (O1 *object, void (O2::*method)(time_watcher &))
+    : callback1<void, time_watcher &>(object,method)
     , registered(false)
     { }
 
-  ~time_watcher ()
-    {
-      iom.unreg (this);
-    }
+  ~time_watcher ();
 
   void set (tstamp when);
   void trigger ();
@@ -118,6 +132,7 @@
   void reset (tstamp when = TSTAMP_CANCEL)
     {
       stop ();
+
       at = when;
     }
 };