Agrego 2 ejemplos con problemas con la logica de control. El cliente la

[z.facultad/75.42/plaqui.git] / Server / src / receiver.cpp

diff --git a/Server/src/receiver.cpp b/Server/src/receiver.cpp
index 0f9f32cde3ebf476ce3e9e762cba738d9915d7b4..9133f85d4ed000bc1ab7e4d110861c8cd2aa363f 100644 (file)
--- a/Server/src/receiver.cpp
+++ b/Server/src/receiver.cpp
@@ -25,24 +25,84 @@
 // $Id$
 //
 
-#include "receiver.h"
+#include "plaqui/server/receiver.h"
+#include <sstream>
+#ifdef DEBUG
+#      include <iostream>
+#endif // DEBUG
 
-using namespace Plaqui;
+using namespace std;
 
-Receiver::Receiver(int port, std::string host):
-               Connection(sockbuf::sock_dgram) {
-       // FIXME - deberia ir en run().
-       socket->bind(port);
+namespace PlaQui {
+
+namespace Server {
+
+const string Receiver::FRAME_BEGIN("<plantstatus");
+
+const string Receiver::FRAME_END("</plantstatus>");
+
+Receiver::~Receiver(void) {
+#ifdef DEBUG
+       cerr << __FILE__ << "(" << __LINE__ << ")"
+               << ": destructor." << endl;
+#endif // DEBUG
+}
+
+Receiver::Receiver(const Connection::Port& port, const string& host)
+           throw(sockerr): Connection(sockbuf::sock_dgram, host, port) {
+#ifdef DEBUG
+       cerr << __FILE__ << "(" << __LINE__ << ")"
+               << ": port = " << port
+               << " | host = " << host << endl;
+#endif // DEBUG
+       socket->bind(host.c_str(), port);
 }
 
-void Receiver::run(void) {
-       // FIXME - debería tirar una excepción?
-       if (!socket->is_open()) {
-               std::cerr << "No se pudo conectar a " << socket->peerhost() <<
-                       ":" << socket->peerport() << "." << std::endl;
-       } else {
-               std::cerr << "Conectado a " << socket->peerhost() <<
-                       ":" << socket->peerport() << "." << std::endl;
+// XXX EL XML DEBE EMPEZAR Y FINALIZAR EN UNA LINEA SEPARADA.
+void Receiver::real_run(void) throw() {
+#ifdef DEBUG
+       cerr << __FILE__ << "(" << __LINE__ << ")"
+               << ": real_run." << endl;
+#endif // DEBUG
+       char buf[BUFSIZ];
+       bool in_frame = false;
+       stringstream ss;
+       while (!stop()) {
+               try {
+                       if (!socket.getline(buf, BUFSIZ)) {
+                               return; // Se terminó la transmision.
+                       }
+               } catch (const sockerr& e) {
+                       signal_error().emit(e.serrno(), e.errstr());
+                       return;
+               }
+               string sbuf = buf;
+               if (in_frame) {
+                       string::size_type pos = sbuf.find(FRAME_END);
+                       if (pos == string::npos) { // No encuentra el fin
+                               ss << sbuf << endl;
+                       } else { // Encuentra el fin.
+                               // Agrego al mensaje actual hasta el final </plantstatus>.
+                               ss << sbuf.substr(0, pos + FRAME_END.length());
+                               frame_received(ss.str());
+                               ss.str("");
+                               in_frame = false;
+                       }
+               } else { // No esta en un frame.
+                       string::size_type pos = sbuf.find(FRAME_BEGIN);
+                       if (pos != string::npos) { // Encuentra el inicio
+                               ss << sbuf.substr(pos) << endl;
+                               in_frame = true;
+                       }
+               }
        }
 }
 
+Receiver::SignalFrameReceived& Receiver::signal_frame_received(void) {
+       return frame_received;
+}
+
+} // namespace Server
+
+} // namespace PlaQui
+