wait_event_cmd — sleep until a condition gets true
wait_event_cmd ( | wq, |
| condition, | |
| cmd1, | |
cmd2); |
wqthe waitqueue to wait on
conditiona 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.