binaryparam

func CancellableFile ¶ added in v1.16.10

func CancellableFile(file *os.File, info os.FileInfo) (io.ReadCloser, error)

CancellableFile takes ownership of file on success. Regular files retain their usual reader; owned FIFOs use nonblocking reads so Close can interrupt them on systems where Go deliberately excludes FIFOs from its runtime poller.

func FileOrStdin ¶

func FileOrStdin(stdin io.ReadCloser, path string) (io.ReadCloser, bool, error)

FileOrStdin opens the file at the given path for reading. If the path is "-", stdin is returned instead.

It's the caller's responsibility to close the returned ReadCloser (usually with `defer`).

Returns a boolean indicating whether stdin is being used. If true, no other components of the calling program should attempt to read from stdin for anything else.