| wait_event_interruptible_timeout(9) - phpMan
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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