+/* This constructor is called when cloning a checkerside to get its application to fork away */
+CheckerSide::CheckerSide(int socket, CheckerSide* child_checker)
+ : channel_(socket, child_checker->channel_), running_(true), child_checker_(child_checker)
+{
+ setup_events(true); // We already have a signal handled in that case
+
+ s_mc_message_int_t answer;
+ ssize_t s = get_channel().receive(answer);
+ xbt_assert(s != -1, "Could not receive answer to FORK_REPLY");
+ xbt_assert(s == sizeof answer, "Broken message (size=%zd; expected %zu)", s, sizeof answer);
+ xbt_assert(answer.type == MessageType::FORK_REPLY,
+ "Received unexpected message %s (%i); expected MessageType::FORK_REPLY (%i)", to_c_str(answer.type),
+ (int)answer.type, (int)MessageType::FORK_REPLY);
+ pid_ = answer.value;
+
+ wait_for_requests();
+}
+
+std::unique_ptr<CheckerSide> CheckerSide::clone(int master_socket, const std::string& master_socket_name)
+{
+ s_mc_message_fork_t m = {};
+ m.type = MessageType::FORK;
+ xbt_assert(master_socket_name.size() == MC_SOCKET_NAME_LEN);
+ std::copy_n(begin(master_socket_name), MC_SOCKET_NAME_LEN, begin(m.socket_name));
+ xbt_assert(get_channel().send(m) == 0, "Could not ask the app to fork on need.");
+
+ int sock = accept(master_socket, nullptr /* I know who's connecting*/, nullptr);
+ xbt_assert(sock > 0, "Cannot accept the incomming connection of the forked app: %s.", strerror(errno));
+
+ return std::make_unique<CheckerSide>(sock, this);
+}
+