Struct Supervisor 

pub struct Supervisor {
    message_tx: IpcSender<TraceRequest>,
    confirm_rx: IpcReceiver<Confirmation>,
    event_rx: IpcReceiver<MemEvents>,
}

The main means of communication between the child and parent process, allowing the former to send requests and get info from the latter.

Fields

message_tx: IpcSender<TraceRequest>

Sender for FFI-mode-related requests.

confirm_rx: IpcReceiver<Confirmation>

Used for synchronisation, allowing us to receive confirmation that the parent process has handled the request from message_tx.

event_rx: IpcReceiver<MemEvents>

Receiver for memory acceses that ocurred during the FFI call.

Implementations

impl Supervisor

pub fn is_enabled() -> bool

Returns true if the supervisor process exists, and false otherwise.

unsafe fn protect_pages( pages: impl Iterator<Item = (NonNull<u8>, usize)>, prot: ProtFlags, ) -> Result<(), Errno>

pub fn do_ffi<'tcx>( alloc: &Rc<RefCell<IsolatedAlloc>>, f: impl FnOnce() -> InterpResult<'tcx, ImmTy<'tcx>>, ) -> InterpResult<'tcx, (ImmTy<'tcx>, Option<MemEvents>)>

Performs an arbitrary FFI call, enabling tracing from the supervisor. As this locks the supervisor via a mutex, no other threads may enter FFI until this function returns.

Layout

Note: Most layout information is completely unstable and may even differ between compilations. The only exception is types with certain repr(...) attributes. Please see the Rust Reference's “Type Layout” chapter for details on type layout guarantees.

Size: 16 bytes