Struct bluer::l2cap::SeqPacket

pub struct SeqPacket { /* private fields */ }

Available on crate feature l2cap only.

An L2CAP sequential packet socket (sequenced, reliable, two-way connection-based data transmission path for datagrams of fixed maximum length).

Implementations

impl SeqPacket

pub async fn connect(addr: SocketAddr) -> Result<Self>

Establish a sequential packet connection with a peer at the specified socket address.

Uses any local Bluetooth adapter.

pub fn peer_addr(&self) -> Result<SocketAddr>

Gets the peer address of this stream.

pub async fn send(&self, buf: &[u8]) -> Result<usize>

Sends a packet.

The packet length must not exceed the Self::send_mtu.

pub fn poll_send(&self, cx: &mut Context<'_>, buf: &[u8]) -> Poll<Result<usize>>

Attempts to send a packet.

The packet length must not exceed the Self::send_mtu.

pub async fn recv(&self, buf: &mut [u8]) -> Result<usize>

Receives a packet.

The provided buffer must be of length Self::recv_mtu, otherwise the packet may be truncated.

pub fn poll_recv( &self, cx: &mut Context<'_>, buf: &mut ReadBuf<'_> ) -> Poll<Result<()>>

Attempts to receive a packet.

The provided buffer must be of length Self::recv_mtu, otherwise the packet may be truncated.

pub fn shutdown(&self, how: Shutdown) -> Result<()>

Shuts down the read, write, or both halves of this connection.

pub fn send_mtu(&self) -> Result<usize>

Maximum transmission unit (MTU) for sending.

pub fn recv_mtu(&self) -> Result<usize>

Maximum transmission unit (MTU) for receiving.

pub unsafe fn from_raw_fd(fd: RawFd) -> Result<Self>

Constructs a new SeqPacket from the given raw file descriptor.

The file descriptor must have been set to non-blocking mode.

This function consumes ownership of the specified file descriptor. The returned object will take responsibility for closing it when the object goes out of scope.

Safety

If the passed file descriptor is invalid, undefined behavior may occur.

Trait Implementations

impl AsRawFd for SeqPacket

fn as_raw_fd(&self) -> RawFd

Extracts the raw file descriptor.

impl AsRef<Socket<SeqPacket>> for SeqPacket

fn as_ref(&self) -> &Socket<SeqPacket>

Converts this type into a shared reference of the (usually inferred) input type.

impl Debug for SeqPacket

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl FromRawFd for SeqPacket

unsafe fn from_raw_fd(fd: RawFd) -> Self

Constructs a new instance of Self from the given raw file descriptor.

The file descriptor must have been set to non-blocking mode.

Panics

Panics when the conversion fails. Use SeqPacket::from_raw_fd for a non-panicking variant.