mirror of
https://github.com/k3s-io/k3s.git
synced 2024-06-07 19:41:36 +00:00
33 lines
1.2 KiB
Markdown
33 lines
1.2 KiB
Markdown
|
### fifo
|
||
|
|
|
||
|
|
[](https://travis-ci.org/containerd/fifo)
|
||
|
|
|
||
|
|
Go package for handling fifos in a sane way.
|
||
|
|
|
||
|
|
```
|
||
|
|
// OpenFifo opens a fifo. Returns io.ReadWriteCloser.
|
||
|
|
// Context can be used to cancel this function until open(2) has not returned.
|
||
|
|
// Accepted flags:
|
||
|
|
// - syscall.O_CREAT - create new fifo if one doesn't exist
|
||
|
|
// - syscall.O_RDONLY - open fifo only from reader side
|
||
|
|
// - syscall.O_WRONLY - open fifo only from writer side
|
||
|
|
// - syscall.O_RDWR - open fifo from both sides, never block on syscall level
|
||
|
|
// - syscall.O_NONBLOCK - return io.ReadWriteCloser even if other side of the
|
||
|
|
// fifo isn't open. read/write will be connected after the actual fifo is
|
||
|
|
// open or after fifo is closed.
|
||
|
|
func OpenFifo(ctx context.Context, fn string, flag int, perm os.FileMode) (io.ReadWriteCloser, error)
|
||
|
|
|
||
|
|
|
||
|
|
// Read from a fifo to a byte array.
|
||
|
|
func (f *fifo) Read(b []byte) (int, error)
|
||
|
|
|
||
|
|
|
||
|
|
// Write from byte array to a fifo.
|
||
|
|
func (f *fifo) Write(b []byte) (int, error)
|
||
|
|
|
||
|
|
|
||
|
|
// Close the fifo. Next reads/writes will error. This method can also be used
|
||
|
|
// before open(2) has returned and fifo was never opened.
|
||
|
|
func (f *fifo) Close() error
|
||
|
|
```
|