dda_queue.c: restart XON/XOFF only if the queue is at least half drained.

2010-10-04 00:55:19 +02:00 · 2010-10-04 00:55:19 +02:00 · 2fac65d172
parent f98772ff25
commit 2fac65d172
1 changed files with 3 additions and 2 deletions
--- a/dda_queue.c
+++ b/dda_queue.c
@ -108,7 +108,8 @@ void next_move() {
 	}

 	#ifdef	XONXOFF
-	// restart transmission
+	// restart transmission if the move buffer is only half full
+	if (((mb_tail - mb_head - 1) & (MOVEBUFFER_SIZE - 1)) > (MOVEBUFFER_SIZE / 2))
 		xon();
 	#endif
 }