Trait gio::prelude::UnixFDMessageExtManual
source · pub trait UnixFDMessageExtManual: Sealed + IsA<UnixFDMessage> + Sized {
// Provided methods
fn append_fd<T: AsRawFd>(&self, fd: T) -> Result<(), Error> { ... }
fn steal_fds(&self) -> Vec<RawFd> { ... }
}Provided Methods§
sourcefn append_fd<T: AsRawFd>(&self, fd: T) -> Result<(), Error>
fn append_fd<T: AsRawFd>(&self, fd: T) -> Result<(), Error>
Adds a file descriptor to self.
The file descriptor is duplicated using dup(). You keep your copy
of the descriptor and the copy contained in self will be closed
when self is finalized.
A possible cause of failure is exceeding the per-process or system-wide file descriptor limit.
fd
a valid open file descriptor
Returns
sourcefn steal_fds(&self) -> Vec<RawFd>
fn steal_fds(&self) -> Vec<RawFd>
Returns the array of file descriptors that is contained in this object.
After this call, the descriptors are no longer contained in
self. Further calls will return an empty list (unless more
descriptors have been added).
The return result of this function must be freed with g_free().
The caller is also responsible for closing all of the file
descriptors.
If length is non-None then it is set to the number of file
descriptors in the returned array. The returned array is also
terminated with -1.
This function never returns None. In case there are no file
descriptors contained in self, an empty array is returned.
Returns
an array of file descriptors