Construct an open acceptor.
template< typename ExecutionContext> basic_socket_acceptor( ExecutionContext & context, const protocol_type & protocol, typename enable_if< is_convertible< ExecutionContext &, execution_context & >::value >::type * = 0);
This constructor creates an acceptor and automatically opens it.
An execution context which provides the I/O executor that the acceptor will use, by default, to dispatch handlers for any asynchronous operations performed on the acceptor.
An object specifying protocol parameters to be used.
Thrown on failure.