Move cxx ffi to dcsctp_cxx namespace

To avoid polluting the default namespace.

Author: boivie

dcsctp-cxx/examples/main.cpp

@@ -2,9 +2,9 @@
 #include <iostream>
 
 int main() {
-  std::cout << "dcsctp version: " << version().c_str() << std::endl;
+  std::cout << "dcsctp version: " << dcsctp_cxx::version().c_str() << std::endl;
 
-  DcSctpSocket *socket = new_socket();
+  dcsctp_cxx::DcSctpSocket *socket = dcsctp_cxx::new_socket();
 
   if (socket) {
     std::cout << "Successfully created a socket." << std::endl;
@@ -13,14 +13,14 @@ int main() {
     return 1;
   }
 
-  if (state(*socket) == SocketState::Closed) {
+  if (dcsctp_cxx::state(*socket) == dcsctp_cxx::SocketState::Closed) {
     std::cout << "Socket is initially closed" << std::endl;
   } else {
     std::cout << "Socket is in an unexpected state" << std::endl;
     return 1;
   }
 
   std::cout << "Socket is about to be deleted." << std::endl;
-  delete_socket(socket);
+  dcsctp_cxx::delete_socket(socket);
   return 0;
 }

dcsctp-cxx/src/lib.rs

@@ -3,7 +3,7 @@ use dcsctp::api::Options;
 use dcsctp::api::SocketState as DcSctpSocketState;
 use std::time::Instant;
 
-#[cxx::bridge]
+#[cxx::bridge(namespace = "dcsctp_cxx")]
 mod ffi {
     #[derive(Debug)]
     enum SocketState {