...one of the most highly
regarded and expertly designed C++ library projects in the
world.
— Herb Sutter and Andrei
Alexandrescu, C++
Coding Standards
Establishes a socket connection by trying each endpoint in a sequence.
template< typename Protocol, typename SocketService, typename Iterator> Iterator connect( basic_socket< Protocol, SocketService > & s, Iterator begin, boost::system::error_code & ec);
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.
An iterator pointing to the start of a sequence of endpoints.
Set to indicate what error occurred, if any. If the sequence is empty,
set to boost::asio::error::not_found
. Otherwise, contains
the error from the last connection attempt.
On success, an iterator denoting the successfully connected endpoint. Otherwise, the end iterator.
This overload assumes that a default constructed object of type Iterator
represents the end of the sequence.
This is a valid assumption for iterator types such as boost::asio::ip::tcp::resolver::iterator
.
tcp::resolver r(io_service); tcp::resolver::query q("host", "service"); tcp::socket s(io_service); boost::system::error_code ec; boost::asio::connect(s, r.resolve(q), ec); if (ec) { // An error occurred. }