SquirrelJME/SquirrelJME

// -*- Mode: Java; indent-tabs-mode: t; tab-width: 4 -*-
// ---------------------------------------------------------------------------
// Multi-Phasic Applications: SquirrelJME
//     Copyright (C) Stephanie Gawroriski <xer@multiphasicapps.net>
// ---------------------------------------------------------------------------
// SquirrelJME is under the Mozilla Public License Version 2.0.
// See license.mkd for licensing and copyright information.
// ---------------------------------------------------------------------------

package cc.squirreljme.vm.nanocoat;

import cc.squirreljme.emulator.vm.VMException;
import cc.squirreljme.runtime.cldc.debug.Debugging;

/**
 * NanoCoat virtual machine state.
 *
 * @since 2023/12/05
 */
public final class NvmState
    implements Pointer
{
    /** The pointer where the state is stored. */
    private final long _pointer;
    
    static
    {
        __Native__.__loadLibrary();
    }
    
    /**
     * Initializes the new virtual machine state.
     *
     * @param __pool The allocation pool to use.
     * @param __reservedPool The reserved memory pool.
     * @param __param Parameters for starting the virtual machine.
     * @throws NullPointerException On null arguments.
     * @throws VMException If the virtual machine could not be initialized.
     * @since 2023/12/08
     */
    public NvmState(AllocPool __pool, AllocPool __reservedPool,
        NvmBootParam __param)
        throws NullPointerException, VMException
    {
        if (__pool == null || __reservedPool == null || __param == null)
            throw new NullPointerException("NARG");
        
        // Initialize state.
        this._pointer = NvmState.__nvmBoot(__pool.pointerAddress(),
            __reservedPool.pointerAddress(),
            this, __param.pointerAddress());
    }
    
    /**
     * {@inheritDoc}
     * @since 2023/12/05
     */
    @Override
    public long pointerAddress()
    {
        throw Debugging.todo();
    }
    
    /**
     * Initializes a new virtual machine.
     *
     * @param __poolPtr The pool this allocates within.
     * @param __reservedPtr The reserved pool pointer.
     * @param __wrapper The wrapper for this reference.
     * @param __paramPtr The pointer to the parameters.
     * @return The pointer to the virtual machine state.
     * @throws VMException If it could not be initialized.
     * @since 2023/12/08
     */
    private static native long __nvmBoot(long __poolPtr, long __reservedPtr,
        NvmState __wrapper, long __paramPtr)
        throws VMException;
}