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aio / timers: Introduce new API timer_new and friends

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Introduce new API for creating timers - timer_new and
_ns, _ms, _us derivatives.

Signed-off-by: Alex Bligh <alex@alex.org.uk>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
This commit is contained in:
Alex Bligh 2013-08-21 16:02:56 +01:00 committed by Stefan Hajnoczi
parent b1bbfe72ec
commit a3a726ae09
1 changed files with 69 additions and 0 deletions
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69
include/qemu/timer.h
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@ -370,6 +370,24 @@ static inline QEMUTimer *timer_new_tl(QEMUTimerList *timer_list,
return ts;
}
/**
* timer_new:
* @type: the clock type to use
* @scale: the scale value for the tiemr
* @cb: the callback to be called when the timer expires
* @opaque: the opaque pointer to be passed to the callback
*
* Creeate a new timer and associate it with the default
* timer list for the clock type @type.
*
* Returns: a pointer to the timer
*/
static inline QEMUTimer *timer_new(QEMUClockType type, int scale,
QEMUTimerCB *cb, void *opaque)
{
return timer_new_tl(main_loop_tlg.tl[type], scale, cb, opaque);
}
void qemu_free_timer(QEMUTimer *ts);
void qemu_del_timer(QEMUTimer *ts);
void qemu_mod_timer_ns(QEMUTimer *ts, int64_t expire_time);
@ -492,6 +510,23 @@ static inline QEMUTimer *qemu_new_timer_ns(QEMUClock *clock, QEMUTimerCB *cb,
return qemu_new_timer(clock, SCALE_NS, cb, opaque);
}
/**
* timer_new_ns:
* @clock: the clock to associate with the timer
* @callback: the callback to call when the timer expires
* @opaque: the opaque pointer to pass to the callback
*
* Create a new timer with nanosecond scale on the default timer list
* associated with the clock.
*
* Returns: a pointer to the newly created timer
*/
static inline QEMUTimer *timer_new_ns(QEMUClockType type, QEMUTimerCB *cb,
void *opaque)
{
return timer_new(type, SCALE_NS, cb, opaque);
}
/**
* qemu_new_timer_us:
* @clock: the clock to associate with the timer
@ -510,6 +545,23 @@ static inline QEMUTimer *qemu_new_timer_us(QEMUClock *clock,
return qemu_new_timer(clock, SCALE_US, cb, opaque);
}
/**
* timer_new_us:
* @clock: the clock to associate with the timer
* @callback: the callback to call when the timer expires
* @opaque: the opaque pointer to pass to the callback
*
* Create a new timer with microsecond scale on the default timer list
* associated with the clock.
*
* Returns: a pointer to the newly created timer
*/
static inline QEMUTimer *timer_new_us(QEMUClockType type, QEMUTimerCB *cb,
void *opaque)
{
return timer_new(type, SCALE_US, cb, opaque);
}
/**
* qemu_new_timer_ms:
* @clock: the clock to associate with the timer
@ -528,6 +580,23 @@ static inline QEMUTimer *qemu_new_timer_ms(QEMUClock *clock,
return qemu_new_timer(clock, SCALE_MS, cb, opaque);
}
/**
* timer_new_ms:
* @clock: the clock to associate with the timer
* @callback: the callback to call when the timer expires
* @opaque: the opaque pointer to pass to the callback
*
* Create a new timer with millisecond scale on the default timer list
* associated with the clock.
*
* Returns: a pointer to the newly created timer
*/
static inline QEMUTimer *timer_new_ms(QEMUClockType type, QEMUTimerCB *cb,
void *opaque)
{
return timer_new(type, SCALE_MS, cb, opaque);
}
static inline int64_t qemu_get_clock_ms(QEMUClock *clock)
{
return qemu_get_clock_ns(clock) / SCALE_MS;