main_server.cpp
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/** @file
* \brief Implementación del servidor
* \author Imanol Barba Sabariego
* \date 13/06/2013
*
* En este fichero se implementa un servidor TCP/IP usando las clases Socket y Server.
*/
#include "server.h"
#include <sys/types.h>
#include <unistd.h>
#include <sstream>
//!Instancia de la clase Server
/*! Esta variable contiene la instancia de la clase Server que aquí se usa e
inicializa.
_Se trata de una variable global para poder así usarla en las funciones que reciban signals del SO._ */
Server *serv;
void killThread(thread_args *t_arg)
{
(t_arg->s)->Close();
pthread_mutex_lock(t_arg->mutex);
t_arg->serv->setNWorkers(t_arg->serv->getNWorkers()-1);
cout << "TCP: Worker " << t_arg->id << ": connection terminated" << endl;
pthread_mutex_unlock(t_arg->mutex);
pthread_cond_signal(t_arg->condition);
t_arg->serv->getStartedThreads()->remove(t_arg->thread);
t_arg->serv->getStoppedThreads()->push_back(t_arg->thread);
if(t_arg->s != 0)
{
delete t_arg->s;
t_arg->s = 0;
}
if(t_arg != 0)
{
delete t_arg;
t_arg = 0;
}
pthread_exit(NULL);
}
void *WorkerThread(void* args)
{
struct thread_args *t_arg = (struct thread_args*)args;
try
{
while(true)
{
string message;
*(t_arg->s) >> message;
if(message == "exit")
{
*(t_arg->s) << "OK";
break;
}
else if(message == "test")
{
string data;
*(t_arg->s) >> data;
cout << "TCP: Received " << data.length() << " bytes" << endl;
*(t_arg->s) << "ACK";
}
else
{
cout << "TCP: Worker " << t_arg->id << " received: " << message << endl;
string send = "You said: ";
send += message;
*(t_arg->s) << send;
}
}
}
catch(SocketException& e)
{
cout << e.description() << endl;
cout << "TCP: Client closed the connection unexpectedly" << endl;
}
killThread(t_arg);
}
//! Método de detención del servidor
/*! Este método detiene el servidor al recibir el signal SIGINT del SO. */
void stopServer(int signal/*!<Parámetro que captura el signal recibido*/)
{
serv->requestExit();
}
void processText(string *str)
{
for(int i = 0; i < str->length(); i++)
{
if((*str)[i] == 32 || (*str)[i] == 10 || (*str)[i] == 11)
{
str->erase(i--,1);
}
}
}
bool readConf(string *ip, int *port)
{
*ip = "";
*port = 0;
ifstream confFile;
confFile.open(CONFFILE);
if(!confFile.is_open())
{
cout << "TCP: Error opening configuration file" << endl;
return false;
}
string parameter;
while(true)
{
getline(confFile, parameter, '=');
processText(¶meter);
if(confFile.eof())
{
break;
}
if(parameter == "bind-ip")
{
confFile >> *ip;
}
else if(parameter == "port")
{
confFile >> *port;
}
}
confFile.close();
if(*ip == "" || *port == 0)
{
return false;
}
return true;
}
//! Método principal del servidor
/*! Lee la configuración usando readConf() y incializa el servidor. */
int main()
{
stringstream sstream;
string ip;
int port;
serv = new Server();
signal(SIGINT, stopServer);
if(!readConf(&ip,&port))
{
cout << "TCP: Configuration couldn't be loaded" << endl;
return -1;
}
serv->startServer(ip,port);
delete serv;
return 0;
}