From: Brett Gordon <beretta42@gmail.com>
Date: Wed, 16 Nov 2016 01:53:54 +0000 (-0500)
Subject: coco3: drivewire: dynamic polling back-off.
X-Git-Url: https://git.ndcode.org/public/gitweb.cgi?a=commitdiff_plain;h=79cba9ff7eb688cd6a61c7b906865fc209ddf3bc;p=FUZIX.git

coco3: drivewire: dynamic polling back-off.
---

diff --git a/Kernel/platform-coco3/ttydw.c b/Kernel/platform-coco3/ttydw.c
index 0383681b..c9c5b2a8 100644
--- a/Kernel/platform-coco3/ttydw.c
+++ b/Kernel/platform-coco3/ttydw.c
@@ -244,14 +244,14 @@ void dw_vpoll( ){
 			min=mini( buf[1], qfree( minor ) );
 			b[2]=min;
 			if( !min ){
-				wait=1;
+				wait = MAX_WAIT;
 				break;
 			}
 			dw_transaction( b,3,tbuf, min, 0 );
 			for( i=0; i<min; i++){
 				tty_inproc( minor, tbuf[i] );
 			}
-			wait=1;
+			wait = 16 - (min >> 4);
 			break;
 		}
 		/* VWIN channel single datum */