linux-4.4.1/schedule_hrtimeout_range() の履歴(No.1)

• 履歴一覧
• 差分 を表示
• 現在との差分 を表示
• ソース を表示
• linux-4.4.1/schedule_hrtimeout_range() へ行く。
  • 1 (2018-01-11 (木) 16:37:35)

参照元†

• linux-4.4.1/poll_schedule_timeout()

説明†

• パス: linux-4.4.1/kernel/time/hrtimer.c

• FIXME: これは何？
  • 説明

引数†

• ktime_t *expires
  • linux-4.4.1/ktime_t
• unsigned long delta
• const enum hrtimer_mode mode
  • linux-4.4.1/hrtimer_mode

返り値†

• int

参考†

実装†

/**
 * schedule_hrtimeout_range - sleep until timeout
 * @expires:	timeout value (ktime_t)
 * @delta:	slack in expires timeout (ktime_t)
 * @mode:	timer mode, HRTIMER_MODE_ABS or HRTIMER_MODE_REL
 *
 * Make the current task sleep until the given expiry time has
 * elapsed. The routine will return immediately unless
 * the current task state has been set (see set_current_state()).
 *
 * The @delta argument gives the kernel the freedom to schedule the
 * actual wakeup to a time that is both power and performance friendly.
 * The kernel give the normal best effort behavior for "@expires+@delta",
 * but may decide to fire the timer earlier, but no earlier than @expires.
 *
 * You can set the task state as follows -
 *
 * %TASK_UNINTERRUPTIBLE - at least @timeout time is guaranteed to
 * pass before the routine returns.
 *
 * %TASK_INTERRUPTIBLE - the routine may return early if a signal is
 * delivered to the current task.
 *
 * The current task state is guaranteed to be TASK_RUNNING when this
 * routine returns.
 *
 * Returns 0 when the timer has expired otherwise -EINTR
 */
int __sched schedule_hrtimeout_range(ktime_t *expires, unsigned long delta,
				     const enum hrtimer_mode mode)
{
	return schedule_hrtimeout_range_clock(expires, delta, mode,
					      CLOCK_MONOTONIC);

• • linux-4.4.1/schedule_hrtimeout_range_clock()

}
EXPORT_SYMBOL_GPL(schedule_hrtimeout_range);

• ライセンスに関係なくシンボルを公開する。
  • [[linux-4.4.1/]]

コメント†