Name

wait_event_freezable — sleep (or freeze) until a condition gets true

Synopsis

wait_event_freezable ( wq,
  condition);
 

Arguments

wq

the waitqueue to wait on

condition

a C expression for the event to wait for

Description

The process is put to sleep (TASK_INTERRUPTIBLE -- so as not to contribute to system load) 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.