asio C++ library

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basic_socket::keep_alive

Inherited from socket_base.

Socket option to send keep-alives.

typedef implementation_defined keep_alive;

Implements the SOL_SOCKET/SO_KEEPALIVE socket option.

Examples

Setting the option:

asio::ip::tcp::socket socket(my_context);
...
asio::socket_base::keep_alive option(true);
socket.set_option(option);

Getting the current option value:

asio::ip::tcp::socket socket(my_context);
...
asio::socket_base::keep_alive option;
socket.get_option(option);
bool is_set = option.value();
Requirements

Header: asio/basic_socket.hpp

Convenience header: asio.hpp


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