A range connect token is a completion
token for completion signature void(error_code, typename Protocol::endpoint)
,
where the type Protocol
is
used in the corresponding async_connect()
function.
A free function as a range connect token:
void connect_handler( const asio::error_code& ec, const asio::ip::tcp::endpoint& endpoint) { ... }
A range connect token function object:
struct connect_handler { ... template <typename Range> void operator()( const asio::error_code& ec, const asio::ip::tcp::endpoint& endpoint) { ... } ... };
A lambda as a range connect token:
asio::async_connect(..., [](const asio::error_code& ec, const asio::ip::tcp::endpoint& endpoint) { ... });
A non-static class member function adapted to a range connect token using
std::bind()
:
void my_class::connect_handler( const asio::error_code& ec, const asio::ip::tcp::endpoint& endpoint) { ... } ... asio::async_connect(..., std::bind(&my_class::connect_handler, this, std::placeholders::_1, std::placeholders::_2));
A non-static class member function adapted to a range connect token using
boost::bind()
:
void my_class::connect_handler( const asio::error_code& ec, const asio::ip::tcp::endpoint& endpoint) { ... } ... asio::async_connect(..., boost::bind(&my_class::connect_handler, this, asio::placeholders::error, asio::placeholders::endpoint));
Using use_future as a range connect token:
std::future<asio::ip::tcp::endpoint> f = asio::async_connect(..., asio::use_future); ... try { asio::ip::tcp::endpoint e = f.get(); ... } catch (const system_error& e) { ... }
Using use_awaitable as a range connect token:
asio::awaitable<void> my_coroutine() { try { ... asio::ip::tcp::endpoint e = co_await asio::async_connect( ..., asio::use_awaitable); ... } catch (const system_error& e) { ... } }