.. _examples_connect: examples/connect.cpp ##################### :: #include using namespace bc; using std::placeholders::_1; // Connection is established. // Send version message to remote host. void connect_started(const std::error_code& ec, channel_ptr node); // Verson message finished sending. // Program completed. void version_sent(const std::error_code& ec, channel_ptr node); void connect_started(const std::error_code& ec, channel_ptr node) { if (ec) { log_error() << "Connect: " << ec.message(); return; } // Create our version message we want to send. // Fill in a bunch of fields. version_type version; version.version = 60000; version.services = 1; version.address_me.services = version.services; version.address_me.ip = ip_address_type{0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xff, 0xff, 0x0a, 0x00, 0x00, 0x01}; version.address_me.port = 8333; version.address_you.services = version.services; version.address_you.ip = ip_address_type{0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xff, 0xff, 0x0a, 0x00, 0x00, 0x01}; version.address_you.port = 8333; // Set the user agent. version.user_agent = "/libbitcoin/connect-test/"; version.start_height = 0; version.nonce = rand(); // Begin the send. // Calls version_sent callback when complete. node->send(version, std::bind(version_sent, _1, node)); } void version_sent(const std::error_code& ec, channel_ptr node) { if (ec) log_error() << "Sending version: " << ec.message(); else log_info() << "Version sent."; } int main() { threadpool pool(1); network net(pool); net.connect("localhost", 8333, connect_started); std::cin.get(); pool.stop(); pool.join(); return 0; }