Wait for a Socket to Become Readable

See more Socket/SSL/TLS Examples

Demonstrates Socket.SelectForReading, which waits for read-ready activity on the socket, or on any contained socket when the object is a socket set. It returns 1 if ready, 0 on timeout, or -1 on error.

#include <C_CkSocketW.h>

void ChilkatSample(void)
    {
    BOOL success;
    HCkSocketW socket;
    BOOL bTls;
    int maxWaitMs;
    int ready;

    success = FALSE;

    socket = CkSocketW_Create();

    //  Connect to the server using TLS.
    bTls = TRUE;
    maxWaitMs = 5000;
    success = CkSocketW_Connect(socket,L"example.com",5000,bTls,maxWaitMs);
    if (success == FALSE) {
        wprintf(L"%s\n",CkSocketW_lastErrorText(socket));
        CkSocketW_Dispose(socket);
        return;
    }

    //  Wait up to 5 seconds for read-ready activity on the socket (or, for a socket set, on any contained
    //  socket).  Returns 1 if ready, 0 on timeout, or -1 on error.
    ready = CkSocketW_SelectForReading(socket,5000);
    if (ready < 0) {
        wprintf(L"%s\n",CkSocketW_lastErrorText(socket));
        CkSocketW_Dispose(socket);
        return;
    }

    if (ready != 1) {
        wprintf(L"No data became available before the timeout.\n");
        CkSocketW_Dispose(socket);
        return;
    }

    wprintf(L"The socket has data ready to read.\n");


    CkSocketW_Dispose(socket);

    }