Struct libp2p_wasm_ext::ffi::Connection

#[repr(transparent)]
pub struct Connection { /* fields omitted */ }

Type of the object that represents an open connection with a remote.

Implementations

impl Connection

pub fn read(&self) -> Iterator

Returns an iterator of JavaScript Promises that resolve to ArrayBuffer objects (or resolve to null, see below). These ArrayBuffer objects contain the data that the remote has sent to us. If the remote closes the connection, the iterator must produce a Promise that resolves to null.

impl Connection

pub fn write(&self, data: &[u8]) -> Result<Promise, JsValue>

Writes data to the connection. Returns a Promise that resolves when the connection is ready for writing again.

If the Promise produces an error, the writing side of the connection is considered unrecoverable and the connection should be closed as soon as possible.

Guaranteed to only be called after the previous write promise has resolved.

impl Connection

pub fn shutdown(&self) -> Result<(), JsValue>

Shuts down the writing side of the connection. After this has been called, the write method will no longer be called.

impl Connection

pub fn close(&self)

Closes the connection. No other method will be called on this connection anymore.

Trait Implementations

impl AsRef<Connection> for Connection

fn as_ref(&self) -> &Connection

Performs the conversion.

impl AsRef<JsValue> for Connection

fn as_ref(&self) -> &JsValue

Performs the conversion.

impl Deref for Connection

type Target = JsValue

The resulting type after dereferencing.

fn deref(&self) -> &JsValue

Dereferences the value.

impl From<Connection> for JsValue

fn from(obj: Connection) -> JsValue

Performs the conversion.

impl From<JsValue> for Connection

fn from(obj: JsValue) -> Connection

Performs the conversion.

impl FromWasmAbi for Connection

type Abi = <JsValue as FromWasmAbi>::Abi

The wasm ABI type that this converts from when coming back out from the ABI boundary.

unsafe fn from_abi(js: Self::Abi) -> Self

Recover a Self from Self::Abi.

impl IntoWasmAbi for Connection

type Abi = <JsValue as IntoWasmAbi>::Abi

The wasm ABI type that this converts into when crossing the ABI boundary.

fn into_abi(self) -> Self::Abi

Convert self into Self::Abi so that it can be sent across the wasm ABI boundary.

impl<'a> IntoWasmAbi for &'a Connection

type Abi = <&'a JsValue as IntoWasmAbi>::Abi

The wasm ABI type that this converts into when crossing the ABI boundary.

fn into_abi(self) -> Self::Abi

Convert self into Self::Abi so that it can be sent across the wasm ABI boundary.

impl JsCast for Connection

fn instanceof(val: &JsValue) -> bool

Performs a dynamic instanceof check to see whether the JsValue provided is an instance of this type.

fn unchecked_from_js(val: JsValue) -> Self

Performs a zero-cost unchecked conversion from a JsValue into an instance of Self

fn unchecked_from_js_ref(val: &JsValue) -> &Self

Performs a zero-cost unchecked conversion from a &JsValue into an instance of &Self.

pub fn has_type<T>(&self) -> bool where
    T: JsCast, 

Test whether this JS value has a type T.

pub fn dyn_into<T>(self) -> Result<T, Self> where
    T: JsCast, 

Performs a dynamic cast (checked at runtime) of this value into the target type T.

pub fn dyn_ref<T>(&self) -> Option<&T> where
    T: JsCast, 

Performs a dynamic cast (checked at runtime) of this value into the target type T.

pub fn unchecked_into<T>(self) -> T where
    T: JsCast, 

Performs a zero-cost unchecked cast into the specified type.

pub fn unchecked_ref<T>(&self) -> &T where
    T: JsCast, 

Performs a zero-cost unchecked cast into a reference to the specified type.

pub fn is_instance_of<T>(&self) -> bool where
    T: JsCast, 

Test whether this JS value is an instance of the type T.

pub fn is_type_of(val: &JsValue) -> bool

Performs a dynamic check to see whether the JsValue provided is a value of this type.

impl OptionFromWasmAbi for Connection

fn is_none(abi: &Self::Abi) -> bool

Tests whether the argument is a “none” instance. If so it will be deserialized as None, and otherwise it will be passed to FromWasmAbi.

impl OptionIntoWasmAbi for Connection

fn none() -> Self::Abi

Returns an ABI instance indicating “none”, which JS will interpret as the None branch of this option.

impl<'a> OptionIntoWasmAbi for &'a Connection

fn none() -> Self::Abi

Returns an ABI instance indicating “none”, which JS will interpret as the None branch of this option.

impl RefFromWasmAbi for Connection

type Abi = <JsValue as RefFromWasmAbi>::Abi

The wasm ABI type references to Self are recovered from.

type Anchor = ManuallyDrop<Connection>

The type that holds the reference to Self for the duration of the invocation of the function that has an &Self parameter. This is required to ensure that the lifetimes don’t persist beyond one function call, and so that they remain anonymous.

unsafe fn ref_from_abi(js: Self::Abi) -> Self::Anchor

Recover a Self::Anchor from Self::Abi.

impl WasmDescribe for Connection

fn describe()