input: stop trying to read terminal input on EOF

Stop trying to read terminal input if a read attempt returns EOF. The
most important case where this matters is when someone runs the player
with stdin redirected from /dev/null and without specifying
--no-consolecontrols. This used to cause 100% CPU load while paused,
as select() would continuously trigger on stdin (the need for
--no-consolecontrols was not apparent to people with older mplayer
versions, as input reading was less efficient and latencies like
hardcoded sleeps kept CPU use well below 100%). Now this will only
cause a "Dead key input" error message.

1 files changed, 2 insertions, 1 deletions

diff --git a/osdep/getch2-win.c b/osdep/getch2-win.c
index 326cf1a7d0..f1ccea6359 100644
--- a/osdep/getch2-win.c
+++ b/osdep/getch2-win.c
@@ -158,11 +158,12 @@ static int getch2_internal(void)
 	return -1;
 }
 
-void getch2(struct mp_fifo *fifo)
+bool getch2(struct mp_fifo *fifo)
 {
     int r = getch2_internal();
     if (r >= 0)
 	mplayer_put_key(fifo, r);
+    return true;
 }
 
 void getch2_enable(void)