PROBLEM:
Pair up a wiimote under win32, take out the batteries and try to pair it up
as long dolphin is still running -->> FAIL.

REASON:
Wiise leaks createfile() handles on wiiuse_unexpected_disconnects.

It's because [WIIUSE] is not taking care of wiiuse_unexpected_disconnects
at all under WIN32, causing to leave the dev_handle created by createfile()
within wiiuse_find() open. The leak happens after timing out on
io_read/write which is not handled atm, disallowing us to re-pair the same
wiimote again as long dolphin is still running.

However fixing the problem with the leaked handles under WIIUSE causes new
a problem but a problem within dolphin. We will need to relink those
re-paired wiimotes with the Update() device_usb routine somehow, 'cause i
presume the core is still using the old HID handle channel or whatever.

A simple DoRefreshReal() for relinking atm only works for us, because
wiiuse fails in cleaning up handles, making a relink of the device_usb
unnecessary but as soon you have a new handle dorefreshreal() is not enough
to relink those (re)paired wiimotes.
The problem lies within the device_usb/hle_Wiimote section, i would
appreciate it if someone with more knowledge of the HID could take a look
at it.

What is needed:
1)Implementing wiiuse_unexpected_disconnect @wiiuse. (code below)
2)Implementing a routine that also relinks/rechannels paired wiimotes with
the device_usb/hle_Wiimote if the HID/dev_handle has changed.

WIIUSE fix:
http://archiv.to/GET/FILE4BBDE376ED48E

Index: io_win.c¶

--- io_win.c (revision 5289)
+++ io_win.c (working copy)
@@ -112,22 +114,31 @@

		/* try to set the output report to see if the device is actually

connected */
if (!wiiuse_set_report_type(wm[found])) {

•   		Sleep(10);
    		WIIMOTE_DISABLE_STATE(wm[found], WIIMOTE_STATE_CONNECTED);
  

•   		if (wm[found]->event == WIIUSE_UNEXPECTED_DISCONNECT) {
  

•   			break;
  

•   		} 
    		continue;
  

•   	}
    	/* do the handshake */
    	wiiuse_handshake(wm[found], NULL, 0);
  
    	++found;
    	if (found >= max_wiimotes)
    		break;
    } else {
    	/* not a wiimote */
  
    	CloseHandle(dev);
    }
  

•   Sleep(10);
  

  }

  if (detail_data)
  @@ -180,22 +193,24 @@

    if ((b == ERROR_HANDLE_EOF) || (b == ERROR_DEVICE_NOT_CONNECTED)) {
    	/* remote disconnect */
  

•   	WIIUSE_WARNING("ERROR_DEVICE_NOT_CONNECTED unid:%d error:%d.",
  

wm->unid, b);

•   	wm->event = WIIUSE_UNEXPECTED_DISCONNECT;
    	wiiuse_disconnected(wm);
    	return 0;
    }
  
    r = WaitForSingleObject(wm->hid_overlap.hEvent, wm->timeout);
    if (r == WAIT_TIMEOUT) {
    	/* timeout - cancel and continue */
  

•   	/*if (*wm->event_buf)
  

•   		WIIUSE_WARNING("Packet ignored.  This may indicate a problem (timeout
  

is %i ms).", wm->timeout); */

•   	if (*wm->event_buf)
  

•   		WIIUSE_WARNING("Packet ignored.  This may indicate a problem (timeout
  

is %i ms).", wm->timeout);¶

		CancelIo(wm->dev_handle);
		ResetEvent(wm->hid_overlap.hEvent);
		return 0;
	} else if (r == WAIT_FAILED) {

•   	WIIUSE_WARNING("A wait error occured on reading from wiimote %i.",
  

wm->unid);

•   	WIIUSE_WARNING("WAIT_FAILED %i.", wm->unid);
    	return 0;
    }
  

@@ -229,19 +244,37 @@
wm->stack = WIIUSE_STACK_BLUESOLEIL;
return i;
}
+

		if (i = HidD_SetOutputReport(wm->dev_handle, buf + 1, len - 1)) {
			wm->stack = WIIUSE_STACK_MS;
			return i;
		}

•   	WIIUSE_ERROR("Unable to determine bluetooth stack type.");
  

•   	//121 = timeout on semaphore/device off/disconnected
  

•   	if (GetLastError() == 121) {
  

•   		wm->event = WIIUSE_UNEXPECTED_DISCONNECT;
  

•   		WIIUSE_INFO("WIIUSE_UNEXPECTED_DISCONNECT");
  

•   		wiiuse_disconnected(wm);
  

•   	}
  

•   	WIIUSE_ERROR("Unable to determine bluetooth stack type || Wiimote timed
  

out.");
return 0;
}

	case WIIUSE_STACK_MS:

•   	return HidD_SetOutputReport(wm->dev_handle, buf + 1, len - 1);
  

•   	i = HidD_SetOutputReport(wm->dev_handle, buf + 1, len - 1);
  

•   	if (GetLastError() == 121) {
  

•   		wm->event = WIIUSE_UNEXPECTED_DISCONNECT;
  

•   		WIIUSE_INFO("WIIUSE_UNEXPECTED_DISCONNECT");
  

•   		wiiuse_disconnected(wm);
  

•   		return 0;
  

•   	}
  

•   	return ((BOOLEAN) i);
  

•   case WIIUSE_STACK_BLUESOLEIL:
    	return WriteFile(wm->dev_handle, buf + 1, 22, &bytes, &wm->hid_overlap);
  

  }
  Index: wiiuse.c
  ===================================================================
  --- wiiuse.c (revision 5289)
  +++ wiiuse.c (working copy)
  @@ -71,6 +71,7 @@
  WIIUSE_INFO("wiiuse clean up...");

  for (; i < wiimotes; ++i) {

•   //CloseHandle(wm[i]->dev_handle);
    wiiuse_disconnect(wm[i]);
    free(wm[i]);
  

  }
  @@ -170,15 +171,10 @@

  /* disable the connected flag /
  WIIMOTE_DISABLE_STATE(wm, WIIMOTE_STATE_CONNECTED);
  / reset a bunch of stuff */

• #ifndef WIN32

•   wm->out_sock = -1;
  

•   wm->in_sock = -1;
  

• #else

•   wm->dev_handle = 0;
  

• #endif

• wm->leds = 0;
  wm->state = WIIMOTE_INIT_STATES;
  wm->read_req = NULL;
  @@ -187,8 +183,17 @@
  wm->btns_held = 0;
  wm->btns_released = 0;
  memset(wm->event_buf, 0, sizeof(wm->event_buf));

• if (wm->event == WIIUSE_UNEXPECTED_DISCONNECT) {

•   CloseHandle(wm->dev_handle);
  

• }
• else
  wm->event = WIIUSE_DISCONNECT;
• #ifndef WIN32

•   wm->out_sock = -1;
  

•   wm->in_sock = -1;
  

• #else

•   wm->dev_handle = 0;
  

• #endif
  }