Struct capsules_extra::read_only_state::ReadOnlyStateDriver

pub struct ReadOnlyStateDriver<'a, T: Time> { /* private fields */ }

Implementations

impl<'a, T: Time> ReadOnlyStateDriver<'a, T>

pub fn new( timer: &'a T, grant: Grant<App, UpcallCount<0>, AllowRoCount<0>, AllowRwCount<0>>, ) -> ReadOnlyStateDriver<'a, T>

Trait Implementations

impl<'a, T: Time> ContextSwitchCallback for ReadOnlyStateDriver<'a, T>

fn context_switch_hook(&self, process: &dyn Process)

This function is called before the kernel switches to a process.

impl<'a, T: Time> SyscallDriver for ReadOnlyStateDriver<'a, T>

fn allow_userspace_readable( &self, processid: ProcessId, which: usize, slice: UserspaceReadableProcessBuffer, ) -> Result<UserspaceReadableProcessBuffer, (UserspaceReadableProcessBuffer, ErrorCode)>

Specify memory regions to be used.

allow_num

• 0: Allow a buffer for the kernel to stored syscall values. This should only be read by the app and written by the capsule.

fn command( &self, command_number: usize, _target_id: usize, _: usize, _processid: ProcessId, ) -> CommandReturn

Commands for ReadOnlyStateDriver.

command_num

• 0: Driver existence check.
• 1: Get version.

fn allocate_grant(&self, processid: ProcessId) -> Result<(), Error>

Request to allocate a capsule’s grant for a specific process.