PlacesEngine::PlacesEngine(QObject *parent, const QVariantList &args)
: Plasma::DataEngine(parent, args)
{
connect(&m_placesModel, SIGNAL(modelReset()),
this, SLOT(modelReset()));
connect(&m_placesModel, SIGNAL(dataChanged(QModelIndex,QModelIndex)),
this, SLOT(dataChanged(QModelIndex,QModelIndex)));
connect(&m_placesModel, SIGNAL(rowsInserted(QModelIndex,int,int)),
this, SLOT(placesAdded(QModelIndex,int,int)));
connect(&m_placesModel, SIGNAL(rowsRemoved(QModelIndex,int,int)),
this, SLOT(placesRemoved(QModelIndex,int,int)));
sendAllData();
}
MyServer::MyServer(int port, QWidget *parent) : QWidget(parent), shipCounter(0), shipIndexCounter(0)
{
server = new QTcpServer(this);
if(!server->listen(QHostAddress::Any , port)){
messageLabel -> setText("Port error");
server->close();
return;
}
isClientConnected = false;
qsrand(QTime::currentTime().msec());
screen = QApplication::desktop()->screenGeometry();
connect(server, SIGNAL(newConnection()), this, SLOT(slotNewConnection()));
createGui();
timer = new QTimer(this);
connect(timer, SIGNAL(timeout()), this, SLOT(sendAllData()));
}
int main(int argc, char *argv[])
{
char hostname[100];
char buf[BUFFERSIZE] = {};
char name[20]={}, message[MESSGSIZE]={};
int option=1;
char optionStr[5];
int sd;
int port;
int count;
struct sockaddr_in pin;
struct hostent *hp;
/* check for command line arguments */
if (argc != 3)
{
printf("Usage: client host port\n");
exit(1);
}
/* get hostname and port from argv */
strcpy(hostname, argv[1]);
port = atoi(argv[2]);
/* create an Internet domain stream socket */
if ((sd = socket(AF_INET, SOCK_STREAM, 0)) == -1) {
perror("Error creating socket");
exit(1);
}
/* lookup host machine information */
if ((hp = gethostbyname(hostname)) == 0) {
perror("Error on gethostbyname call");
exit(1);
}
/* fill in the socket address structure with host information */
memset(&pin, 0, sizeof(pin));
pin.sin_family = AF_INET;
pin.sin_addr.s_addr = ((struct in_addr *)(hp->h_addr))->s_addr;
pin.sin_port = htons(port); /* convert to network byte order */
printf("Connecting to %s:%d\n\n", hostname, port);
/* connect to port on host */
if (connect(sd,(struct sockaddr *) &pin, sizeof(pin)) == -1) {
perror("Error on connect call");
exit(1);
}
printf("\nEnter your name: ");
fgets(name, NAMELENGTH, stdin);
name[strlen(name)-1] = '\0';
/* send the user's name to the server */
if ( (count = sendAllData(sd, name, strlen(name))) == -1)
{
perror("Error on write call");
exit(1);
}
/* read login status from the server */
if((count = receiveAllData(sd, buf, BUFFERSIZE)) == -1)
{
perror("Error on read call");
exit(1);
}
/*Check the login status and exit if login failed.*/
if (strcmp(buf,"LOGIN_FAIL") == 0)
{
printf("\nYou are already logged from another terminal. Please logout from that terminal and try again.\n");
close(sd);
exit(1);
}
while(option !=7)
{
printf("\n\n1. Display the names of all known users.");
printf("\n2. Display the names of all currently connected users.");
printf("\n3. Send a text message to a particular user.");
printf("\n4. Send a text message to all currently connected users.");
printf("\n5. Send a text message to all known users.");
printf("\n6. Get my messages.");
printf("\n7. Exit.\n");
printf("Enter your choice: ");
fgets(optionStr, 5, stdin);
optionStr[strlen(optionStr)-1] = '\0';
option = atoi(optionStr);
if(option>7 || option <1)
{
printf("Invalid option selected.\n");
continue;
}
/* Send the option selected to the server */
sprintf(buf,"%d",option);
if((count = sendAllData(sd, buf, strlen(buf))) == -1)
{
perror("Error on write call");
exit(1);
}
/* Perform the operation requested*/
switch(option)
{
case 1:
/* Receive the response by server for that option */
if((count = receiveAllData(sd, buf, BUFFERSIZE)) == -1)
{
perror("Error on read call");
exit(1);
}
printf("\nKnown users:\n");
printData(buf);
break;
case 2:
/* Receive the response by server for that option */
if((count = receiveAllData(sd, buf, BUFFERSIZE)) == -1)
{
perror("Error on read call");
exit(1);
}
printf("\nCurrently connected users:\n");
printData(buf);
break;
case 3:
printf("\nEnter the user name: ");
fgets(name, NAMELENGTH, stdin);
name[strlen(name)-1] = '\0';
printf("\nEnter your message: ");
fgets(message, MESSGSIZE, stdin);
message[strlen(message)-1] = '\0';
sprintf(buf,"%s|%s", name, message);
if((count = sendAllData(sd, buf, strlen(buf))) == -1)
{
perror("Error on write call");
exit(1);
}
break;
case 4:
printf("\nEnter your message: ");
fgets(message, MESSGSIZE, stdin);
message[strlen(message)-1] = '\0';
if((count = sendAllData(sd, message, strlen(message))) == -1)
{
perror("Error on write call");
exit(1);
}
break;
case 5:
printf("\nEnter your message: ");
fgets(message, MESSGSIZE, stdin);
message[strlen(message)-1] = '\0';
if((count = sendAllData(sd, message, strlen(message))) == -1)
{
perror("Error on write call");
exit(1);
}
break;
case 6:
/* Receive the response by server for that option */
if((count = receiveAllData(sd, buf, BUFFERSIZE)) == -1)
{
perror("Error on read call");
exit(1);
}
if(strcmp(buf,"")==0)
{
printf("\nYou do not have any unread messages.\n");
}
else
{
printf("\nYour messages:\n");
printData(buf);
}
break;
case 7:
default:
if((count = receiveAllData(sd, buf, BUFFERSIZE)) == -1)
{
perror("Error on read call");
exit(1);
}
if(strcmp(buf, "LOGGED_OUT")==0)
printf("\nYou have successfully logged out\n");
option = 7;
break;
}
}
/* close the socket */
close(sd);
}
__interrupt void Timer_A (void)
{
CCR0 += 10000; //Decrease this to increase rate that values are checked
sendAllData();
}
