Method

GioCancellableget_fd

Declaration

int
g_cancellable_get_fd (
  GCancellable* cancellable
)

Description

Gets the file descriptor for a cancellable job. This can be used to implement cancellable operations on Unix systems. The returned fd will turn readable when cancellable is cancelled.

You are not supposed to read from the fd yourself, just check for readable status. Reading to unset the readable status is done with g_cancellable_reset().

After a successful return from this function, you should use g_cancellable_release_fd() to free up resources allocated for the returned file descriptor.

See also g_cancellable_make_pollfd().

Return value

Returns: int
 

A valid file descriptor. -1 if the file descriptor is not supported, or on errors.