(C#) Asynchronous SSL Client (Deprecated) Example

Notice: The functionality described here is deprecated and replaced by a newer model for asynchronous method calls. The newer model was introduced in Chilkat v9.5.0.52, and is identified by methods having names ending in “Async” which return a task object.

Demonstrates how to connect to an SSL server, send a simple message, receive a simple response, and disconnect. This example uses the asynchronous methods to connect, send, and receive.

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// Notice: The functionality described here is deprecated and replaced 
// by a newer model for asynchronous method calls. The newer model was 
// introduced in Chilkat v9.5.0.52, and is identified by methods 
// having names ending in “Async” which return a task object.

Chilkat.Socket socket = new Chilkat.Socket();

bool ssl = true;
int maxWaitMillisec = 20000;

// The SSL server hostname may be an IP address, a domain name,
// or "localhost".  You'll need to change this:
string sslServerHost;
sslServerHost = "123.123.88.88";
int sslServerPort = 8123;

// Connect to the SSL server asynchronously in a background thread.
bool success = socket.AsyncConnectStart(sslServerHost,sslServerPort,ssl,maxWaitMillisec);
if (success != true) {
    Debug.WriteLine(socket.LastErrorText);
    return;
}

// Wait for the socket to become connected...
while ((socket.AsyncConnectFinished != true)) {
    // Sleep 1 second.
    socket.SleepMs(1000);
}

// Did the connect fail?
if (socket.AsyncConnectSuccess != true) {
    Debug.WriteLine(socket.AsyncConnectLog);
    return;
}

// Set maximum timeouts for reading an writing (in millisec)
socket.MaxReadIdleMs = 20000;
socket.MaxSendIdleMs = 20000;

// Send a "Hello Server! -EOM-" message:
success = socket.AsyncSendString("Hello Server! -EOM-");
if (success != true) {
    Debug.WriteLine(socket.LastErrorText);
    return;
}

// Wait for the send to finish
while ((socket.AsyncSendFinished != true)) {
    // Sleep 1 second.
    socket.SleepMs(1000);
}

// Did the send fail?
if (socket.AsyncSendSuccess != true) {
    Debug.WriteLine(socket.AsyncSendLog);
    return;
}

// The server (in this example) is going to send a "Hello Client! -EOM-" 
// message.  Begin reading asynchronously in a background thread:
success = socket.AsyncReceiveUntilMatch("-EOM-");
if (success != true) {
    Debug.WriteLine(socket.LastErrorText);
    return;
}

// Wait for the background read to finish
while ((socket.AsyncReceiveFinished != true)) {
    // Sleep 1 second.
    socket.SleepMs(1000);
}

// Did the receive fail?
if (socket.AsyncReceiveSuccess != true) {
    Debug.WriteLine(socket.AsyncReceiveLog);
    return;
}

// Display the received message:
Debug.WriteLine(socket.AsyncReceivedString);

// Close the connection with the server
// Wait a max of 20 seconds (20000 millsec)
success = socket.Close(20000);