Go

Get the LastErrorText for an Asynchronous Method Call

See more Async Examples

Demonstrates how to get the LastErrorText information for a Chilkat method called asynchronously. Go

    success := false

    // This example requires the Chilkat API to have been previously unlocked.
    // See Global Unlock Sample for sample code.

    socket := chilkat.NewSocket()

    // The Async call simply creates the task.  The "Connect" method has not yet been called.
    maxWaitMs := 5000
    // Let's intentionally cause this connect to fail by giving it an invalid domain..
    c := make(chan *chilkat.Task)
    go socket.ConnectAsync("amazonbladflakjsdflksadjf.com",443,true,maxWaitMs,c)
    task := <-c
    if socket.LastMethodSuccess() == false {
        fmt.Println(socket.LastErrorText())
        socket.DisposeSocket()
        task.DisposeTask()
        return
    }

    // Start the background thread to run the task.

    if !success {
        fmt.Println(task.LastErrorText())
        task.DisposeTask()
        socket.DisposeSocket()
        task.DisposeTask()
        return
    }

    // The application is now free to do anything else

    // For this example, we'll simply sleep and periodically
    // check to see if the Socket Connect if finished.
    for task.Finished() != true {
        // Sleep 1 ms.
        task.SleepMs(1)
    }

    // If the task completed, it means the method (in this case the Connect method) was called and returned success or failure.
    if task.StatusInt() != 7 {
        fmt.Println("Task did not complete.")
        fmt.Println("task status: ", task.Status())
        task.DisposeTask()
        socket.DisposeSocket()
        task.DisposeTask()
        return
    }

    // Get the success/failure of the Connect
    // (This is the return value of the Connect method had it been called synchronously)
    success = task.GetResultBool()
    if success == false {
        // Get the LastErrorText for the Connect method call.
        // Had we called Connect synchronously, we would've simply accessed the socket object's LastErrorText property.
        // Instead, we get the task object's ResultErrorText.
        fmt.Println(task.ResultErrorText())
    } else {
        fmt.Println("Connect succeeded.")
    }

    task.DisposeTask()

    socket.DisposeSocket()
    task.DisposeTask()