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

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

diff --git a/Server/src/tcpserver.cpp b/Server/src/tcpserver.cpp
index 82f157706bcaf5a5c4efe58e99b113ecb786a8ca..04fd8bab9128ec1a4014990a7ba27217e926bef1 100644 (file)
--- a/Server/src/tcpserver.cpp
+++ b/Server/src/tcpserver.cpp
@@ -26,65 +26,179 @@
 //
 
 #include "plaqui/server/tcpserver.h"
 //
 
 #include "plaqui/server/tcpserver.h"

-#include <sigc++/class_slot.h> // FIXME
+#include <sigc++/class_slot.h>
+#include <glibmm/timer.h>

 #ifdef DEBUG
 #      include <iostream>
 #endif // DEBUG
 
 #ifdef DEBUG
 #      include <iostream>
 #endif // DEBUG
 

-PlaQui::Server::TCPServer::~TCPServer(void) {
+using namespace std;
+
+namespace PlaQui {
+
+namespace Server {
+
+TCPServer::~TCPServer(void) {

 #ifdef DEBUG
 #ifdef DEBUG

-       std::cerr << __FILE__ <<  ": destructor." << std::endl;
+       cerr << __FILE__ << "(" << __LINE__ << ")"
+               <<  ": destructor." << endl;

 #endif // DEBUG
 #endif // DEBUG

+       // Mando a terminar todas las conexiones.
+       connections_mutex.lock();
+       for (ConnectionList::iterator con = connections.begin();
+                       con != connections.end(); con++) {
+               (*con)->finish();
+       }
+       ConnectionList::size_type count = connections.size();
+       connections_mutex.unlock();
+       // Espero que terminen realmente.
+       while (count) {
+               Glib::usleep(10000); // 10 milisegundos
+               connections_mutex.lock();
+               count = connections.size();
+               connections_mutex.unlock();
+       }

 }
 
 }
 

-PlaQui::Server::TCPServer::TCPServer(int port):
+TCPServer::TCPServer(const Connection::Port& port) throw(sockerr):

                socket(sockbuf::sock_stream) {
 #ifdef DEBUG
                socket(sockbuf::sock_stream) {
 #ifdef DEBUG

-       std::cerr << __FILE__ <<  ": port = " << port << std::endl;
+       cerr << __FILE__ << "(" << __LINE__ << ")"
+               <<  ": port = " << port << endl;

 #endif // DEBUG
 #endif // DEBUG

+       socket.reuseaddr(true);

        socket.bind(port);
 #ifdef DEBUG
        socket.bind(port);
 #ifdef DEBUG

-       std::cerr << __FILE__ <<  ": escuchando en " << socket.localhost()
-               << ":" << socket.localport() << "." << std::endl;
+       cerr << __FILE__ << "(" << __LINE__ << ")"
+               <<  ": escuchando en " << socket.localhost()
+               << ":" << socket.localport() << "." << endl;
+#endif // DEBUG
+       socket.listen(MAX_PENDING_CONNECTIONS);
+#ifdef DEBUG
+       cerr << __FILE__ << "(" << __LINE__ << ")"
+               <<  ": [despues de listen()] escuchando en "
+               << socket.localhost() << ":" << socket.localport() << "." << endl;

 #endif // DEBUG
 #endif // DEBUG

-       socket.listen();
+}
+
+void TCPServer::finish(void) {

 #ifdef DEBUG
 #ifdef DEBUG

-       std::cerr << __FILE__ <<  ": [despues de listen()] escuchando en "
-               << socket.localhost() << ":" << socket.localport() << "." << std::endl;
+       cerr << __FILE__ << "(" << __LINE__ << ")"
+               <<  ": finish(void);" << endl;

 #endif // DEBUG
 #endif // DEBUG

+       Runnable::finish();
+       // Creo una conexión suicida para que el accept() del server retorne
+       // el control y el server pueda terminar realmente.
+       try {
+               sockinetbuf suicida(sockbuf::sock_stream);
+               suicida.connect(socket.localhost(), socket.localport());
+       } catch (const sockerr& e) {
+               // FIXME mejorar codigos de error.
+               signal_error().emit(100000 + e.serrno(), string("No se pudo crear "
+                                       "conexión 'suicida' para terminar el servidor: ")
+                                       + e.errstr());
+       }

 }
 
 }
 

-void PlaQui::Server::TCPServer::on_connection_finished(
-               PlaQui::Server::Connection* connection) {
+void TCPServer::on_connection_finished(Connection* connection) {

 #ifdef DEBUG
 #ifdef DEBUG

-       std::cerr << __FILE__ <<  ": on_connection_finished(connection = "
-               << connection << ")" << std::endl;
+       cerr << __FILE__ << "(" << __LINE__ << ")"
+               <<  ": on_connection_finished(connection = "
+               << connection << ")" << endl;

 #endif // DEBUG
 #endif // DEBUG

-       // TODO: poner lock.
+       Glib::Mutex::Lock lock(connections_mutex);

        connections.remove(connection);
        connections.remove(connection);

-       // TODO: sacar lock.
+#ifdef DEBUG
+       cerr << __FILE__ << "(" << __LINE__ << ")"
+               <<  ": lista de conexiones" << endl;
+       for (ConnectionList::const_iterator i = connections.begin();
+                       i != connections.end(); i++) {
+               cerr << "\t " << *i << endl;
+       }
+#endif // DEBUG

 }
 
 }
 

-void PlaQui::Server::TCPServer::real_run(void) {
+void TCPServer::real_run(void) throw() {

 #ifdef DEBUG
 #ifdef DEBUG

-       std::cerr << __FILE__ <<  ": real_run" << std::endl;
+       cerr << __FILE__ << "(" << __LINE__ << ")"
+               <<  ": real_run()" << endl;

 #endif // DEBUG
 #endif // DEBUG

-       PlaQui::Server::Connection* conn;
-       while (!stop) {
-               // TODO: ver tema de timeout o como salir de un accept().
+       Connection* connection;
+       while (!stop()) {

                // Forma grasa de salir del accept: crear conexion que salga al toque.
                // Forma grasa de salir del accept: crear conexion que salga al toque.

-               conn = new_connection(socket.accept());
-               // TODO: poner lock.
-               connections.push_back(conn);
-               // TODO: sacar lock.
-               // TODO: esto va en Server::new_connection()
+               try {
+                       connection = new_connection(socket.accept());
+               } catch (const sockerr& e) { // No se si el accept() puede fallar.
+                       signal_error().emit(e.serrno(),
+                                       string("Error creando conexión nueva: ") + e.errstr());
+                       continue; // Supongo que puede seguir aceptando conexiones.
+               }
+               if (!stop()) {
+                       // Solo avisamos si la conexión que viene no es para matarnos.
+                       _connection_opened(connection->get_host(), connection->get_port());
+               }
+#ifdef DEBUG
+               cerr << __FILE__ << "(" << __LINE__ << ")"
+                       <<  ": real_run(): connection = " << connection
+                       << endl;
+#endif // DEBUG
+               Glib::Mutex::Lock lock(connections_mutex);
+               connections.push_back(connection);
+#ifdef DEBUG
+               cerr << __FILE__ << "(" << __LINE__ << ")"
+                       <<  ": real_run(): lista de conexiones" << endl;
+               for (ConnectionList::const_iterator i = connections.begin();
+                               i != connections.end(); i++) {
+                       cerr << "\t " << *i << endl;
+               }
+#endif // DEBUG

                // Conecto la señal para cuando termina una conexión, borrarla.
                // Conecto la señal para cuando termina una conexión, borrarla.

-               conn->signal_finished().connect(
-                               SigC::bind<PlaQui::Server::Connection*>(
-                                       SigC::slot_class(*this,
-                                               &PlaQui::Server::TCPServer::on_connection_finished),
-                                       conn));
-               conn->run();
+               connection->signal_finished().connect(SigC::bind(
+                               SigC::slot_class(*this, &TCPServer::on_connection_finished),
+                               connection));
+               connection->run();
+       }
+}
+
+bool TCPServer::disconnect(const std::string& host, const Connection::Port& port) {
+#ifdef DEBUG
+       cerr << __FILE__ << "(" << __LINE__ << ")"
+               <<  ": disconnect(host = " << host
+               << ", port = " << port << ")" << endl;
+#endif // DEBUG
+       Glib::Mutex::Lock lock(connections_mutex);
+       for (ConnectionList::iterator con = connections.begin();
+                       con != connections.end(); con++) {
+               if (((*con)->get_host() == host) && ((*con)->get_port() == port)) {
+                       (*con)->finish();
+                       return true;
+               }

        }
        }

+       return false;

 }
 
 }
 

+/// \todo TODO Hay que reemplazarlo por una lista generica.
+TCPServer::ConnectionInfoList TCPServer::get_connected(void) {
+#ifdef DEBUG
+       cerr << __FILE__ << "(" << __LINE__ << ")"
+               <<  ": get_connected()" << endl;
+#endif // DEBUG
+       TCPServer::ConnectionInfoList cl;
+       Glib::Mutex::Lock lock(connections_mutex);
+       for (ConnectionList::const_iterator con = connections.begin();
+                       con != connections.end(); con++) {
+               TCPServer::ConnectionInfo ci =
+                       { (*con)->get_host(), (*con)->get_port() };
+               cl.push_back(ci);
+       }
+       return cl;
+}
+
+TCPServer::SignalConnectionOpened& TCPServer::signal_connection_opened(void) {
+       return _connection_opened;
+}
+
+} // namespace Server
+
+} // namespace PlaQui
+