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 <CkSocketW.h>

void ChilkatSample(void)
    {
    bool success = false;

    CkSocketW socket;

    //  Connect to the server using TLS.
    bool bTls = true;
    int maxWaitMs = 5000;
    success = socket.Connect(L"example.com",5000,bTls,maxWaitMs);
    if (success == false) {
        wprintf(L"%s\n",socket.lastErrorText());
        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.
    int ready = socket.SelectForReading(5000);
    if (ready < 0) {
        wprintf(L"%s\n",socket.lastErrorText());
        return;
    }

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

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