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add a generic scaling mechanism for timers

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This enables rt_clock timers to use nanosecond resolution, just by
using the _ns functions; there is really no reason to forbid that.

Migrated timers are all using vm_clock (of course; but I checked that
anyway) so the timers in the savevm files are already in nanosecond
resolution.  So this patch makes no change to the migration format.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Paolo Bonzini
2011-03-11 16:33:58 +01:00
parent 7447545544
commit 4a998740b2
2 changed files with 21 additions and 13 deletions
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9
qemu-timer.h
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@ -41,7 +41,8 @@ int64_t qemu_get_clock(QEMUClock *clock);
int64_t qemu_get_clock_ns(QEMUClock *clock);
void qemu_clock_enable(QEMUClock *clock, int enabled);
QEMUTimer *qemu_new_timer(QEMUClock *clock, QEMUTimerCB *cb, void *opaque);
QEMUTimer *qemu_new_timer(QEMUClock *clock, int scale,
QEMUTimerCB *cb, void *opaque);
void qemu_free_timer(QEMUTimer *ts);
void qemu_del_timer(QEMUTimer *ts);
void qemu_mod_timer(QEMUTimer *ts, int64_t expire_time);
@ -61,15 +62,13 @@ void quit_timers(void);
static inline QEMUTimer *qemu_new_timer_ns(QEMUClock *clock, QEMUTimerCB *cb,
void *opaque)
{
assert(clock != rt_clock);
return qemu_new_timer(clock, cb, opaque);
return qemu_new_timer(clock, SCALE_NS, cb, opaque);
}
static inline QEMUTimer *qemu_new_timer_ms(QEMUClock *clock, QEMUTimerCB *cb,
void *opaque)
{
assert(clock == rt_clock);
return qemu_new_timer(clock, cb, opaque);
return qemu_new_timer(clock, SCALE_MS, cb, opaque);
}
static inline int64_t qemu_get_clock_ms(QEMUClock *clock)