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wait_event_interruptible_timeout(9) - phpMan

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WAIT_EVENT_INTERRUPT(9)                   Driver Basics                   WAIT_EVENT_INTERRUPT(9)



NAME
       wait_event_interruptible_timeout - sleep until a condition gets true or a timeout elapses

SYNOPSIS
       wait_event_interruptible_timeout(wq, condition, timeout);

ARGUMENTS
       wq
           the waitqueue to wait on

       condition
           a C expression for the event to wait for

       timeout
           timeout, in jiffies

DESCRIPTION
       The process is put to sleep (TASK_INTERRUPTIBLE) until the condition evaluates to true or
       a signal is received. The condition is checked each time the waitqueue wq is woken up.

       wake_up has to be called after changing any variable that could change the result of the
       wait condition.

RETURN
       0 if the condition evaluated to false after the timeout elapsed, 1 if the condition
       evaluated to true after the timeout elapsed, the remaining jiffies (at least 1) if the
       condition evaluated to true before the timeout elapsed, or -ERESTARTSYS if it was
       interrupted by a signal.

COPYRIGHT
Kernel Hackers Manual 4.8.                 January 2017                   WAIT_EVENT_INTERRUPT(9)


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