From 36ae96d649785f198b485021d6f9ec30e896adef Mon Sep 17 00:00:00 2001
From: okuji <okuji@localhost>
Date: Fri, 13 Sep 2002 11:27:41 +0000
Subject: [PATCH] 2002-09-13  Yoshinori K. Okuji  <okuji@enbug.org>

	* stage2/serial.c (fill_input_buf): Take a new argument NOWAIT.
	If NOWAIT is true, don't loop.
	All callers are changed.
---
 ChangeLog       | 6 ++++++
 stage2/serial.c | 9 ++++++---
 2 files changed, 12 insertions(+), 3 deletions(-)

diff --git a/ChangeLog b/ChangeLog
index b15af8d04..5aa74a3f7 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,9 @@
+2002-09-13  Yoshinori K. Okuji  <okuji@enbug.org>
+
+	* stage2/serial.c (fill_input_buf): Take a new argument NOWAIT.
+	If NOWAIT is true, don't loop.
+	All callers are changed.
+
 2002-09-08  Yoshinori K. Okuji  <okuji@enbug.org>
 
 	* configure.in (--disable-serial): Fix a typo in the
diff --git a/stage2/serial.c b/stage2/serial.c
index 8cc244ef6..32ad20be3 100644
--- a/stage2/serial.c
+++ b/stage2/serial.c
@@ -260,7 +260,7 @@ serial_translate_key_sequence (void)
 }
     
 static
-int fill_input_buf (void)
+int fill_input_buf (int nowait)
 {
   int i;
 
@@ -276,6 +276,9 @@ int fill_input_buf (void)
 	  /* Reset the counter to zero, to wait for the same interval.  */
 	  i = 0;
 	}
+      
+      if (nowait)
+	break;
     }
 
   /* Translate some key sequences.  */
@@ -290,7 +293,7 @@ serial_getkey (void)
 {
   int c;
   
-  while (! fill_input_buf ())
+  while (! fill_input_buf (0))
     ;
 
   c = input_buf[0];
@@ -304,7 +307,7 @@ serial_getkey (void)
 int
 serial_checkkey (void)
 {
-  if (fill_input_buf ())
+  if (fill_input_buf (1))
     return input_buf[0];
 
   return -1;