ip::udp::socket

The UDP socket type.

typedef basic_datagram_socket< udp > socket;

Types

Name	Description
rebind_executor	Rebinds the socket type to another executor.
broadcast	Socket option to permit sending of broadcast messages.
bytes_readable	IO control command to get the amount of data that can be read without blocking.
debug	Socket option to enable socket-level debugging.
do_not_route	Socket option to prevent routing, use local interfaces only.
enable_connection_aborted	Socket option to report aborted connections on accept.
endpoint_type	The endpoint type.
executor_type	The type of the executor associated with the object.
keep_alive	Socket option to send keep-alives.
linger	Socket option to specify whether the socket lingers on close if unsent data is present.
lowest_layer_type	A basic_socket is always the lowest layer.
message_flags	Bitmask type for flags that can be passed to send and receive operations.
native_handle_type	The native representation of a socket.
out_of_band_inline	Socket option for putting received out-of-band data inline.
protocol_type	The protocol type.
receive_buffer_size	Socket option for the receive buffer size of a socket.
receive_low_watermark	Socket option for the receive low watermark.
reuse_address	Socket option to allow the socket to be bound to an address that is already in use.
send_buffer_size	Socket option for the send buffer size of a socket.
send_low_watermark	Socket option for the send low watermark.
shutdown_type	Different ways a socket may be shutdown.
wait_type	Wait types.

Member Functions

Name	Description
assign	Assign an existing native socket to the socket.
async_connect	Start an asynchronous connect.
async_receive	Start an asynchronous receive on a connected socket.
async_receive_from	Start an asynchronous receive.
async_send	Start an asynchronous send on a connected socket.
async_send_to	Start an asynchronous send.
async_wait	Asynchronously wait for the socket to become ready to read, ready to write, or to have pending error conditions.
at_mark	Determine whether the socket is at the out-of-band data mark.
available	Determine the number of bytes available for reading.
basic_datagram_socket [constructor]	Construct a basic_datagram_socket without opening it. — Construct and open a basic_datagram_socket. — Construct a basic_datagram_socket, opening it and binding it to the given local endpoint. — Construct a basic_datagram_socket on an existing native socket. — Move-construct a basic_datagram_socket from another. — Move-construct a basic_datagram_socket from a socket of another protocol type.
bind	Bind the socket to the given local endpoint.
cancel	Cancel all asynchronous operations associated with the socket.
close	Close the socket.
connect	Connect the socket to the specified endpoint.
get_executor	Get the executor associated with the object.
get_option	Get an option from the socket.
io_control	Perform an IO control command on the socket.
is_open	Determine whether the socket is open.
local_endpoint	Get the local endpoint of the socket.
lowest_layer	Get a reference to the lowest layer. — Get a const reference to the lowest layer.
native_handle	Get the native socket representation.
native_non_blocking	Gets the non-blocking mode of the native socket implementation. — Sets the non-blocking mode of the native socket implementation.
non_blocking	Gets the non-blocking mode of the socket. — Sets the non-blocking mode of the socket.
open	Open the socket using the specified protocol.
operator=	Move-assign a basic_datagram_socket from another. — Move-assign a basic_datagram_socket from a socket of another protocol type.
receive	Receive some data on a connected socket.
receive_from	Receive a datagram with the endpoint of the sender.
release	Release ownership of the underlying native socket.
remote_endpoint	Get the remote endpoint of the socket.
send	Send some data on a connected socket.
send_to	Send a datagram to the specified endpoint.
set_option	Set an option on the socket.
shutdown	Disable sends or receives on the socket.
wait	Wait for the socket to become ready to read, ready to write, or to have pending error conditions.
~basic_datagram_socket [destructor]	Destroys the socket.

Data Members

Name	Description
max_connections [static]	(Deprecated: Use max_listen_connections.) The maximum length of the queue of pending incoming connections.
max_listen_connections [static]	The maximum length of the queue of pending incoming connections.
message_do_not_route [static]	Specify that the data should not be subject to routing.
message_end_of_record [static]	Specifies that the data marks the end of a record.
message_out_of_band [static]	Process out-of-band data.
message_peek [static]	Peek at incoming data without removing it from the input queue.

The basic_datagram_socket class template provides asynchronous and blocking datagram-oriented socket functionality.

Thread Safety

Distinct objects: Safe.

Shared objects: Unsafe.

Synchronous send, send_to, receive, receive_from, and connect operations are thread safe with respect to each other, if the underlying operating system calls are also thread safe. This means that it is permitted to perform concurrent calls to these synchronous operations on a single socket object. Other synchronous operations, such as open or close, are not thread safe.

Requirements

Header: asio/ip/udp.hpp

Convenience header: asio.hpp