timer: constify some functions

Reviewed-by: Zhao Liu <zhao1.liu@intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

diff --git a/include/qemu/timer.h b/include/qemu/timer.h
index abd2204f3beacdca793fa5a70b0f593a93a217a9..aec730ac257e715671ebe1250481d3e61ebe8712 100644 (file)
--- a/include/qemu/timer.h
+++ b/include/qemu/timer.h
@@ -699,7 +699,7 @@ void timer_mod_anticipate(QEMUTimer *ts, int64_t expire_time);
  *
  * Returns: true if the timer is pending
  */
-bool timer_pending(QEMUTimer *ts);
+bool timer_pending(const QEMUTimer *ts);
 
 /**
  * timer_expired:
@@ -710,7 +710,7 @@ bool timer_pending(QEMUTimer *ts);
  *
  * Returns: true if the timer has expired
  */
-bool timer_expired(QEMUTimer *timer_head, int64_t current_time);
+bool timer_expired(const QEMUTimer *timer_head, int64_t current_time);
 
 /**
  * timer_expire_time_ns:
@@ -720,7 +720,7 @@ bool timer_expired(QEMUTimer *timer_head, int64_t current_time);
  *
  * Returns: the expiry time in nanoseconds
  */
-uint64_t timer_expire_time_ns(QEMUTimer *ts);
+uint64_t timer_expire_time_ns(const QEMUTimer *ts);
 
 /**
  * timer_get:

diff --git a/util/qemu-timer.c b/util/qemu-timer.c
index 1fb48be281a752546fa4405b606d672f93f05c3f..56f11b6a641f6abf8d44d446a88edbe87d6c61e4 100644 (file)
--- a/util/qemu-timer.c
+++ b/util/qemu-timer.c
@@ -89,7 +89,7 @@ static inline QEMUClock *qemu_clock_ptr(QEMUClockType type)
     return &qemu_clocks[type];
 }
 
-static bool timer_expired_ns(QEMUTimer *timer_head, int64_t current_time)
+static bool timer_expired_ns(const QEMUTimer *timer_head, int64_t current_time)
 {
     return timer_head && (timer_head->expire_time <= current_time);
 }
@@ -475,12 +475,12 @@ void timer_mod_anticipate(QEMUTimer *ts, int64_t expire_time)
     timer_mod_anticipate_ns(ts, expire_time * ts->scale);
 }
 
-bool timer_pending(QEMUTimer *ts)
+bool timer_pending(const QEMUTimer *ts)
 {
     return ts->expire_time >= 0;
 }
 
-bool timer_expired(QEMUTimer *timer_head, int64_t current_time)
+bool timer_expired(const QEMUTimer *timer_head, int64_t current_time)
 {
     return timer_expired_ns(timer_head, current_time * timer_head->scale);
 }
@@ -649,7 +649,7 @@ void init_clocks(QEMUTimerListNotifyCB *notify_cb)
 #endif
 }
 
-uint64_t timer_expire_time_ns(QEMUTimer *ts)
+uint64_t timer_expire_time_ns(const QEMUTimer *ts)
 {
     return timer_pending(ts) ? ts->expire_time : -1;
 }