1.What are the possible actions that a process can take upon receiving a signal? Write commands for sending a hungup signals to a process with PID 10289.

Upon receiving a signal, a process can take different actions depending on the signal type and how the process is programmed to handle it. Here are some common actions that a process can take upon receiving a signal:

1. Ignore the signal
2. Terminate immediately
3. Stop execution and wait for a continue signal
4. Call a signal handler function to perform a specific action

To send a hangup signal (SIGHUP) to a process with PID 10289, you can use the following command:

kill -SIGHUP 10289

This will send the SIGHUP signal to the process with PID 10289 and trigger the corresponding signal handler (if any).

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What are the possible actions that a process can take upon receiving a signal? Write commands for sending a hungup signals to a process with PID 10289.

Upon receiving a signal, a process can take several actions such as:

1. Ignore the signal
2. Terminate immediately
3. Stop/Suspend execution
4. Continue execution
5. Catch the signal and execute a signal handler function

To send a hungup (HUP) signal to a process with PID 10289, you can use the following command:

kill -HUP 10289

This will send the HUP signal to the process with PID 10289, which may cause it to reload configuration files or restart.

Write a piece of pseudo-code that override the onTouchEvent function in a View to perform “rotation” of the View content. You should use the appropriate event actions. No code needed for the object drawing

Here is an example of how to override the onTouchEvent function in a View to perform rotation of the View content:

public class MyView extends View {
    private float mLastTouchX;
    private float mLastTouchY;

    public MyView(Context context) {
        super(context);
    }

    @Override
    public boolean onTouchEvent(MotionEvent event) {
        switch (event.getAction()) {
            case MotionEvent.ACTION_DOWN:
                mLastTouchX = event.getX();
                mLastTouchY = event.getY();
                break;
            case MotionEvent.ACTION_MOVE:
                float dx = event.getX() - mLastTouchX;
                float dy = event.getY() - mLastTouchY;
                float angle = (float) Math.atan2(dy, dx);
                setRotation(angle * 180 / (float) Math.PI);
                break;
        }
        return true;
    }
}

This code creates a custom View called `MyView` and overrides its `onTouchEvent` function. When the user touches down on the view, the code saves the coordinates of the touch. When the user moves their finger across the screen, the code calculates the angle between the initial touch position and the current touch position, and uses that angle to set the rotation of the view. The `setRotation` method is a built-in method of the View class that sets the rotation of the view in degrees.

Note that this code assumes that the View already has content to rotate. No code is provided for drawing the object itself.