Programming Forums > Application Development > C++

layer · Apr 29th, 2005, 1:08 AM

Hey guys, well, I started over with my WinSock functions, and it's going tons better then it did before... So I had a question. I start up Winsock. I create a socket, I bind it, I listen on it. Now, after I start the listening socket, I go into a Do loop, and accept clients... Heres the loop which I'm having troubles with.

(Toggle Plain Text)

do{
             clientS = accept(listenS, NULL, NULL);
             /*if (WM_DESTROY == 1){
             closesocket(listenS);
             WSACleanup();
             PostQuitMessage (0);  // exit  
             } */ 
             Sleep(250);  // PROGRAM HANGS IN THIS LOOP, IT STOPS RESPONDING... AND I TRIED THE IF WM_DESTROY :(
}while (clientS == INVALID_SOCKET);

Ok, for one, I want to wait for a client in a loop and STILL check to see if WM_DESTROY command has been sent.... As you can see, I commented out the part that I tried to check if WM_DESTROY was initiated. Any suggestions on that?

Now, I have this code:

(Toggle Plain Text)

char IpMem[40];
char sPort[10];
GetWindowText(hPortData, sPort, sizeof(sPort)); 
char sIp[30];
int iIp, iPort;
GetWindowText(hIPData, sIp, sizeof(sIp));
strcat(IpMem, sIp);
strcat(IpMem, ":");
strcat(IpMem, sPort);
MessageBox(NULL, IpMem, "Ip and Port", MB_OK);
iIp = atoi(sIp);
iPort = atoi(sPort);
listenS = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
if (listenS == INVALID_SOCKET) 
{
                          WSACleanup();
                           closesocket(listenS);
                            MessageBox(NULL, "Failed to create socket, SweetTalk will automatically exit now.", "Error", MB_ICONEXCLAMATION | MB_OK);
                            return EXIT_SUCCESS;
                         }
                         SOCKADDR_IN info;
                         info.sin_family = AF_INET;
                         info.sin_addr.s_addr = INADDR_ANY; // should I replace INADDR_ANY with iIp?
                         info.sin_port = htons(8888); // should I replace 8888 with iPort?
                         ret = bind(listenS,(LPSOCKADDR)&info,sizeof(struct sockaddr));
                         if (ret == SOCKET_ERROR)
                         {
                            WSACleanup();
                            closesocket(listenS);
                            MessageBox(NULL, "Failed to bind socket, SweetTalk will automatically exit now.", "Error", MB_ICONEXCLAMATION | MB_OK);
                            return EXIT_SUCCESS;
                         }

And there you can see my comments, which are my questions...
Should I replace "INADDR_ANY" with iIp? And should I replace "htons(8888)" with iPort?
If you need any more info on what I need help with, please ask...
Thanks a ton times a million

Apr 29th, 2005, 1:08 AM	#1
layer Hobbyist Programmer Join Date: Feb 2005 Posts: 112 Rep Power: 4	WinSock accept() hangs program in Do loop... Hey guys, well, I started over with my WinSock functions, and it's going tons better then it did before... So I had a question. I start up Winsock. I create a socket, I bind it, I listen on it. Now, after I start the listening socket, I go into a Do loop, and accept clients... Heres the loop which I'm having troubles with. (Toggle Plain Text) do{ clientS = accept(listenS, NULL, NULL); /if (WM_DESTROY == 1){ closesocket(listenS); WSACleanup(); PostQuitMessage (0); // exit } / Sleep(250); // PROGRAM HANGS IN THIS LOOP, IT STOPS RESPONDING... AND I TRIED THE IF WM_DESTROY :( }while (clientS == INVALID_SOCKET); do{ clientS = accept(listenS, NULL, NULL); /if (WM_DESTROY == 1){ closesocket(listenS); WSACleanup(); PostQuitMessage (0); // exit } / Sleep(250); // PROGRAM HANGS IN THIS LOOP, IT STOPS RESPONDING... AND I TRIED THE IF WM_DESTROY :( }while (clientS == INVALID_SOCKET); Ok, for one, I want to wait for a client in a loop and STILL check to see if WM_DESTROY command has been sent.... As you can see, I commented out the part that I tried to check if WM_DESTROY was initiated. Any suggestions on that? Now, I have this code: (Toggle Plain Text) char IpMem[40]; char sPort[10]; GetWindowText(hPortData, sPort, sizeof(sPort)); char sIp[30]; int iIp, iPort; GetWindowText(hIPData, sIp, sizeof(sIp)); strcat(IpMem, sIp); strcat(IpMem, ":"); strcat(IpMem, sPort); MessageBox(NULL, IpMem, "Ip and Port", MB_OK); iIp = atoi(sIp); iPort = atoi(sPort); listenS = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP); if (listenS == INVALID_SOCKET) { WSACleanup(); closesocket(listenS); MessageBox(NULL, "Failed to create socket, SweetTalk will automatically exit now.", "Error", MB_ICONEXCLAMATION \| MB_OK); return EXIT_SUCCESS; } SOCKADDR_IN info; info.sin_family = AF_INET; info.sin_addr.s_addr = INADDR_ANY; // should I replace INADDR_ANY with iIp? info.sin_port = htons(8888); // should I replace 8888 with iPort? ret = bind(listenS,(LPSOCKADDR)&info,sizeof(struct sockaddr)); if (ret == SOCKET_ERROR) { WSACleanup(); closesocket(listenS); MessageBox(NULL, "Failed to bind socket, SweetTalk will automatically exit now.", "Error", MB_ICONEXCLAMATION \| MB_OK); return EXIT_SUCCESS; } char IpMem[40]; char sPort[10]; GetWindowText(hPortData, sPort, sizeof(sPort)); char sIp[30]; int iIp, iPort; GetWindowText(hIPData, sIp, sizeof(sIp)); strcat(IpMem, sIp); strcat(IpMem, ":"); strcat(IpMem, sPort); MessageBox(NULL, IpMem, "Ip and Port", MB_OK); iIp = atoi(sIp); iPort = atoi(sPort); listenS = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP); if (listenS == INVALID_SOCKET) { WSACleanup(); closesocket(listenS); MessageBox(NULL, "Failed to create socket, SweetTalk will automatically exit now.", "Error", MB_ICONEXCLAMATION \| MB_OK); return EXIT_SUCCESS; } SOCKADDR_IN info; info.sin_family = AF_INET; info.sin_addr.s_addr = INADDR_ANY; // should I replace INADDR_ANY with iIp? info.sin_port = htons(8888); // should I replace 8888 with iPort? ret = bind(listenS,(LPSOCKADDR)&info,sizeof(struct sockaddr)); if (ret == SOCKET_ERROR) { WSACleanup(); closesocket(listenS); MessageBox(NULL, "Failed to bind socket, SweetTalk will automatically exit now.", "Error", MB_ICONEXCLAMATION \| MB_OK); return EXIT_SUCCESS; } And there you can see my comments, which are my questions... Should I replace "INADDR_ANY" with iIp? And should I replace "htons(8888)" with iPort? If you need any more info on what I need help with, please ask... Thanks a ton times a million

Thread Tools
Show Printable Version Email this Page
Display Modes
Switch to Linear Mode Switch to Hybrid Mode Threaded Mode

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)

Programming Forums > Application Development > C++

WinSock accept() hangs program in Do loop...