From 59e4c377419a9489e190496059d59fed16502e46 Mon Sep 17 00:00:00 2001
From: Michael Brown <mcb30@ipxe.org>
Date: Mon, 24 Oct 2011 15:52:57 +0100
Subject: [PATCH] [cmdline] Allow "sleep" command to be interrupted

Allow Ctrl-C to be used to abort a "sleep" command.

Signed-off-by: Michael Brown <mcb30@ipxe.org>
---
 src/core/exec.c | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/src/core/exec.c b/src/core/exec.c
index bcd990e0..49261194 100644
--- a/src/core/exec.c
+++ b/src/core/exec.c
@@ -31,6 +31,9 @@ FILE_LICENCE ( GPL2_OR_LATER );
 #include <ipxe/command.h>
 #include <ipxe/parseopt.h>
 #include <ipxe/settings.h>
+#include <ipxe/console.h>
+#include <ipxe/keys.h>
+#include <ipxe/process.h>
 #include <ipxe/nap.h>
 #include <ipxe/shell.h>
 
@@ -564,8 +567,12 @@ static int sleep_exec ( int argc, char **argv ) {
 	/* Delay for specified number of seconds */
 	start = currticks();
 	delay = ( seconds * TICKS_PER_SEC );
-	while ( ( currticks() - start ) <= delay )
+	while ( ( currticks() - start ) <= delay ) {
+		step();
+		if ( iskey() && ( getchar() == CTRL_C ) )
+			return -ECANCELED;
 		cpu_nap();
+	}
 
 	return 0;
 }