fasync

func (*FileAsync) ClearOwner ¶

func (a *FileAsync) ClearOwner()

ClearOwner unsets the current signal recipient.

func (*FileAsync) NotifyEvent ¶

func (a *FileAsync) NotifyEvent(mask waiter.EventMask)

NotifyEvent implements waiter.EventListener.NotifyEvent.

func (*FileAsync) Owner ¶

func (a *FileAsync) Owner() (*kernel.Task, *kernel.ThreadGroup, *kernel.ProcessGroup)

Owner returns who is currently getting signals. All return values will be nil if no one is set to receive signals.

func (*FileAsync) Register ¶

func (a *FileAsync) Register(w waiter.Waitable) error

Register sets the file which will be monitored for IO events.

The file must not be currently registered.

func (*FileAsync) SetOwnerProcessGroup ¶

func (a *FileAsync) SetOwnerProcessGroup(requester *kernel.Task, recipient *kernel.ProcessGroup)

SetOwnerProcessGroup sets the owner (who will receive signals) to a specified process group. Only this owner will receive signals.

func (*FileAsync) SetOwnerTask ¶

func (a *FileAsync) SetOwnerTask(requester *kernel.Task, recipient *kernel.Task)

SetOwnerTask sets the owner (who will receive signals) to a specified task. Only this owner will receive signals.

func (*FileAsync) SetOwnerThreadGroup ¶

func (a *FileAsync) SetOwnerThreadGroup(requester *kernel.Task, recipient *kernel.ThreadGroup)

SetOwnerThreadGroup sets the owner (who will receive signals) to a specified thread group. Only this owner will receive signals.

func (*FileAsync) SetSignal ¶

func (a *FileAsync) SetSignal(signal linux.Signal) error

SetSignal overrides which signal to send when I/O is available. The default behavior can be reset by specifying signal zero, which means to send SIGIO.

func (*FileAsync) Signal ¶

func (a *FileAsync) Signal() linux.Signal

Signal returns which signal will be sent to the signal recipient. A value of zero means the signal to deliver wasn't customized, which means the default signal (SIGIO) will be delivered.

func (*FileAsync) Unregister ¶

func (a *FileAsync) Unregister(w waiter.Waitable)

Unregister stops monitoring a file.

The file must be currently registered.