1SCHEDULE_TIMEOUT(9)              Driver Basics             SCHEDULE_TIMEOUT(9)
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NAME

6       schedule_timeout - sleep until timeout
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SYNOPSIS

9       signed long __sched schedule_timeout(signed long timeout);
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ARGUMENTS

12       timeout
13           timeout value in jiffies
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DESCRIPTION

16       Make the current task sleep until timeout jiffies have elapsed. The
17       routine will return immediately unless the current task state has been
18       set (see set_current_state).
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20       You can set the task state as follows -
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22       TASK_UNINTERRUPTIBLE - at least timeout jiffies are guaranteed to pass
23       before the routine returns. The routine will return 0
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25       TASK_INTERRUPTIBLE - the routine may return early if a signal is
26       delivered to the current task. In this case the remaining time in
27       jiffies will be returned, or 0 if the timer expired in time
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29       The current task state is guaranteed to be TASK_RUNNING when this
30       routine returns.
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32       Specifying a timeout value of MAX_SCHEDULE_TIMEOUT will schedule the
33       CPU away without a bound on the timeout. In this case the return value
34       will be MAX_SCHEDULE_TIMEOUT.
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36       In all cases the return value is guaranteed to be non-negative.
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39Kernel Hackers Manual 2.6.         June 2019               SCHEDULE_TIMEOUT(9)
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