variable timer intervals

This patch introduces dynamic timer intervals: we slow down the refresh
rate when there in no much activity but we get back to a fast refresh
rate when the activity resume.

Please note that qemu_timer_expired is not an inline function any more
because I needed to call it from vnc.c however I don't think this change
should have any serious consequence.

Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Message-Id: 

1 files changed, 1 insertions, 0 deletions

diff --git a/qemu-timer.h b/qemu-timer.h
index 3f8880ddfa..8f6946763b 100644
--- a/qemu-timer.h
+++ b/qemu-timer.h
@@ -24,6 +24,7 @@ void qemu_free_timer(QEMUTimer *ts);
 void qemu_del_timer(QEMUTimer *ts);
 void qemu_mod_timer(QEMUTimer *ts, int64_t expire_time);
 int qemu_timer_pending(QEMUTimer *ts);
+int qemu_timer_expired(QEMUTimer *timer_head, int64_t current_time);
 
 extern int64_t ticks_per_sec;