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Establishes a socket connection by trying each endpoint in a sequence.
template<
typename Protocol,
typename EndpointSequence>
Protocol::endpoint connect(
basic_socket< Protocol > & s,
const EndpointSequence & endpoints,
asio::error_code & ec,
typename enable_if< is_endpoint_sequence< EndpointSequence >::value >::type * = 0);
This function attempts to connect a socket to one of a sequence of endpoints.
It does this by repeated calls to the socket's connect member
function, once for each endpoint in the sequence, until a connection is
successfully established.
The socket to be connected. If the socket is already open, it will be closed.
A sequence of endpoints.
Set to indicate what error occurred, if any. If the sequence is empty,
set to asio::error::not_found. Otherwise, contains the
error from the last connection attempt.
On success, the successfully connected endpoint. Otherwise, a default-constructed endpoint.
tcp::resolver r(io_context);
tcp::resolver::query q("host", "service");
tcp::socket s(io_context);
asio::error_code ec;
asio::connect(s, r.resolve(q), ec);
if (ec)
{
// An error occurred.
}