void Network::Initialize()
{
WSADATA wsa;
if (WSAStartup(MAKEWORD(2, 2), &wsa) != 0)
{
printf("Failed. Error Code : %d", WSAGetLastError());
exit(EXIT_FAILURE);
}
if ((socketThis = socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP)) == SOCKET_ERROR)
{
printf("Could not create socket : %d", WSAGetLastError());
exit(EXIT_FAILURE);
}
threadsRunning = true;
memset((char *)&localConnection.socketAddr, 0, sizeof(localConnection.socketAddr));
localConnection.socketAddr.sin_family = AF_INET;
localConnection.socketAddr.sin_addr.s_addr = INADDR_ANY;
if (server)
{
InitializeServer();
}
else
{
InitializeClient();
}
InitializeThreads();
}
const BOOL CBonDriver_TSTask::OpenTuner()
{
TSTask::CBlockLock Lock(m_Lock);
if (!m_Buffer.Reserve(m_BufferSize))
return FALSE;
InitializeClient();
return TRUE;
}
//This is the main function of the Client
int main(int argc, char *argv[])
{
int qHandlerPID, fMonitorPID, RC;
if(argc <= 1)
{
printf("--ERROR, incomplete parameter list\n");
printf("--Correct Format\n\t./FndFl <<Server IP>> [<<Current Port>>]\n");
return 0;
}
strcpy(ServerIP, argv[1]);
if(argc >= 3)
{
strcpy(MyPort, argv[2]);
qPort = atoi(MyPort);
}
uPort = 40000;
if(InitializeClient() < 0)
{
printf("--ERROR - Could not start the peer application, please restart the application or retry after restarting the system if problem persists\n");
exit(0);
}
//Start the query handler
if((qHandlerPID = fork()) == 0)
{
StartQHandler();
}
//Start the file monitor
if((fMonitorPID = fork()) == 0)
{
fMonitor();
}
printf("\n---------------------Node Ready------------------------\n");
printf("\tSearch and get the files you want.\n \tThe app is read ,enjoy!\n");
//Stay in this loop forever
while(1)
{
if(GetUserInPut() == 0)
{
if((RC = SearchFile()) == 0)
{
printf("--Could not locate the file \"%s\"\n",InFileName);
}
else if(RC < 0)
{
printf("--Could not locate the file \"%s\"\n, RC was %d",InFileName, RC);
}
else
{
printf("--\tFile found, transfer started from %s\n",SourceIP);
if((RC = GetFile()) == 0)
{
printf("--ERROR - File transfer was interrupted, restart the search\n");
}
else if(RC < 0)
{
printf("--ERROR - File transfer was interrupted, restart the search\n");
}
else
{
printf("--\tSuccess: file \"%s\" copied to the shared directory\n--\n", InFileName);
}
}
}
}
//The program control should never come here
printf("Program is in an inconsistant state, terminating the Node application\n");
exit(0);
}
int main(void)
{
SOCKET ClientSockDesc; // Kliento pagrindinio soketo-klausytojo deskriptorius.
char UserInput [BUFFLEN] = {0}; // Masyvas vartotojo komandoms nuskaityti.
int SendResult; // Siuntimo funkcijos resultatui saugoti.
int ReceiveResult; // Siuntimo funkcijos resultatui saugoti.
char Packet [BUFFLEN] = {0}; // Buferiu masyvas duomenims gauti.
int jCounter, i; // Skaitliukai.
unsigned int ParseResult; // Komandu analizes rezultatui saugoti.
fd_set MainSocketSet, TempSet; //pagrindine soketu aibe; soketu aibe, kuri turi duomenu, paruostu nuskaitymui
unsigned int MaxKnownSocketDesc, iCounter;// maksimalus deskriptoriu kintamasis (soketo nr), skaitliukas (soket�)
struct timeval TimeVal; // Laiko struktura dirbti su select().
WSADATA wsaData;
if(WSAStartup(0x202, &wsaData) == 0)
{
}
else
{
printf("ERROR: Initialization failure.\n");
}
if ( INVALID_SOCKET == (ClientSockDesc = InitializeClient ()) )
{
printf ("CNLabs Client error: client initialization failed.\n");
goto EXIT;
}
// Inicializuoti soketu aibes.
FD_ZERO(&MainSocketSet);
FD_ZERO(&TempSet);
// Inicializuojame laiko struktura. 0 - reiskia, kad select() funkcija turi blokuotis laukdama, kol atsiras bent vienas aktyvus soketas.
TimeVal.tv_sec = 10; //sekundes
TimeVal.tv_usec = 500; //tukstantosios
FD_SET(ClientSockDesc, &MainSocketSet);
MaxKnownSocketDesc = ClientSockDesc;
while ( 1 )
{
// Kiekvienoje iteracijoje inicializuokime pagalbine soketu aibe pagrindine.
TempSet = MainSocketSet;
// Isrenkame is soketu aibes tuos deskriptorius, kurie apraso soketus, turincius duomenu, paruostu skaitymui.
//select()tinklo primityvo panaudojimas sinchroniniu budu, kada blokuojamasi laukiant aktyviu soketu, turinciu info, kuria per juos galima skaityti is tinklo.
//tikrina zemesnius uz pirmuoji nr pazymetus, todel +1, pirmos eiles soketu aibe (2,3 eiles soketu aibe), blokavimas ribota laika
if ( SOCKET_ERROR == select (MaxKnownSocketDesc + 1, &TempSet, NULL, NULL, &TimeVal) )
{
exit(EXIT_FAILURE);
}
for ( iCounter = 0; iCounter <= MaxKnownSocketDesc; iCounter++ )
{
if (FD_ISSET(iCounter, &TempSet))
{
if ( SOCKET_ERROR == ReceivePacket (&ClientSockDesc, Packet) )
{
closesocket (ClientSockDesc);
return INVALID_SOCKET;
}
UnmarshalPacket (Packet);
printf ("%s\n", Packet);
}
else if(FD_ISSET(0, &TempSet))
{
//fflush ( stdin );
memset (UserInput, 0, sizeof (UserInput));
fgets (UserInput, sizeof (UserInput), stdin);
UserInput [strlen (UserInput) - 1] = '\0';
//ParseCommandInput (UserInput);
MarshalPacket(UserInput);
SendPacket (&ClientSockDesc, UserInput,strlen(UserInput));
}
}
}
closesocket (ClientSockDesc);
EXIT:
WSACleanup();
return 1;
}
