szaszm commented on code in PR #1599:
URL: https://github.com/apache/nifi-minifi-cpp/pull/1599#discussion_r1301254315
##########
libminifi/include/utils/net/AsioSocketUtils.h:
##########
@@ -63,6 +64,64 @@ asio::awaitable<std::tuple<std::error_code>>
handshake(SslSocket& socket, asio::
asio::ssl::context getSslContext(const controllers::SSLContextService&
ssl_context_service, asio::ssl::context::method ssl_context_method =
asio::ssl::context::tlsv12_client);
+
+struct SocketData {
+ std::string host = "localhost";
+ int port = -1;
+ std::shared_ptr<minifi::controllers::SSLContextService> ssl_context_service;
+};
+
+class AsioSocketConnection : public io::BaseStream {
+ public:
+ explicit AsioSocketConnection(SocketData socket_data);
+ int initialize() override;
+ size_t read(std::span<std::byte> out_buffer) override {
+ gsl_Expects(stream_);
+ return stream_->read(out_buffer);
+ }
+ size_t write(const uint8_t *in_buffer, size_t len) override {
+ gsl_Expects(stream_);
+ return stream_->write(in_buffer, len);
+ }
+
+ void setInterface(const std::string& local_network_interface) {
+ local_network_interface_ = local_network_interface;
+ }
+
+ private:
+ template<typename SocketType>
+ bool bindToLocalInterface(SocketType& socket) {
+ if (local_network_interface_.empty()) {
+ return true;
+ }
+
+ asio::ip::tcp::endpoint
local_endpoint(asio::ip::address::from_string(local_network_interface_), 0);
+ asio::error_code err;
+ socket.open(local_endpoint.protocol(), err);
+ if (err) {
+ logger_->log_error("Failed to open socket on network interface '%s' with
the following message: '%s'", local_network_interface_, err.message());
+ return false;
+ }
+ socket.set_option(asio::ip::tcp::socket::reuse_address(true));
Review Comment:
I found the original code now, and it used `getifaddrs` to find the IP
address of the specified interface, when needed. There doesn't seem to be a
similar utility in asio.
How is the code here supposed to achieve this? According to the docs,
`asio::ip::address::from_string` converts dotted decimal form IP addresses (or
hex notation IPv6 address) to binary form, but it doesn't say anything about
converting interface names to interface addresses.
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