Trait method lrs::fd::FDContainer::duplicate_as

Duplicates the file descriptor, replacing an existing one.

Syntax

fn duplicate_as(&self, new: i32) -> Result<Self, Errno>

Arguments

Remarks

The new argument can refer to an open file descriptor but does not have to. In this case, new will be atomically closed and replaced by a duplicate of this file descriptor.

See also

• dup3(2)