wait
wait([x])
Block the current task until some event occurs, depending on the type of the argument:
RemoteRef: Wait for a value to become available for the specified remote reference.Channel: Wait for a value to be appended to the channel.Condition: Wait fornotifyon a condition.Process: Wait for a process or process chain to exit. Theexitcodefield of a process can be used to determine success or failure.Task: Wait for aTaskto finish, returning its result value. If the task fails with an exception, the exception is propagated (re-thrown in the task that calledwait).RawFD: Wait for changes on a file descriptor (seepoll_fdfor keyword arguments and return code)
If no argument is passed, the task blocks for an undefined period. If the task's
state is set to :waiting, it can only be restarted by an explicit call to
schedule or yieldto. If the task's state is :runnable, it might be
restarted unpredictably.
Often wait is called within a while loop to ensure a waited-for condition
is met before proceeding.
Examples
See Also
:@async, :@schedule, :@task, Condition, consume, interrupt, istaskdone, istaskstarted, lock, notify, ReentrantLock, schedule, Task, task_local_storage, unlock, wait, yield, yieldto,User Contributed Notes
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