wait_event_cmd — sleep until a condition gets true
wait_event_cmd ( | wq, |
condition, | |
cmd1, | |
cmd2) ; |
wq
the waitqueue to wait on
condition
a C expression for the event to wait for
cmd1
-- undescribed --
cmd2
-- undescribed --
the command will be executed after sleep
The process is put to sleep (TASK_UNINTERRUPTIBLE) until the
condition
evaluates to true. 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.