Struct linux_io::fd::ioctl::IoctlReqNoArgs

pub struct IoctlReqNoArgs<Device: IoDevice, Result> { /* private fields */ }

Implementation of IoctlReq with a fixed cmd and passing no arguments at all, just returning the kernel’s result value.

This is for the less common ioctl requests that indicate more than just success in their result, and so callers need to obtain that result.

Trait Implementations

impl<'a, Device, Result> IoctlReq<'a, Device> for IoctlReqNoArgs<Device, Result>

where Result: 'a + FromIoctlResult<int>, Device: 'a + IoDevice,

type ExtArg = ()

The type that the caller will provide when using this ioctl command.

type TempMem = ()

The type of some temporary memory that the request needs to do its work.

type RawArg = ()

The type of argument that will be passed to the raw system call.

type Result = Result

The type of the result of the fcntl call.

fn prepare_ioctl_args( &self, _: &Self::ExtArg, _: &mut MaybeUninit<Self::TempMem>, ) -> (ulong, Self::RawArg)

Prepare the cmd and arg values for a ioctl system call.

fn prepare_ioctl_result( &self, raw: int, _: &Self::ExtArg, _: &MaybeUninit<Self::TempMem>, ) -> Self::Result

Prepare a raw successful result from a ioctl call to be returned.