////////////////////////////////////////////////////////////////////////////////
//
//  Microsoft Research Singularity
//
//  Copyright (c) Microsoft Corporation.  All rights reserved.
//
//  File:   UnicodePipeContract.sg - Contract between processes for STDIO pipes
//

using System;
using System.Runtime.InteropServices;
using Microsoft.SingSharp;
using Microsoft.Singularity;
using Microsoft.Singularity.Channels;
using Microsoft.Singularity.Naming;
using Microsoft.Singularity.Io;

namespace Microsoft.Singularity.Io
{
    public contract UnicodePipeContract
    {
        in message Write(char[]! in ExHeap buffer, int offset, int count);
        out message AckWrite(char[]! in ExHeap buffer);
        
        // start state
        state READY : Write? -> ACK;
        state ACK : AckWrite! -> READY;

        // For sending an Exp side pipe initially, create channel in this state
        // NewChannel(out imp, out exp, UnicodePipeContract.EXPMOVABLE.Value);
        state EXPMOVABLE : Moved! -> READY;
        out message Moved();

    }
}

namespace Microsoft.Singularity.Io.Tty2006
{
    public enum Modifiers {
        SHIFT       = 1,
        CTRL        = 2,
        ALT         = 4
    }
    
    public enum ControlCodes {
        CTRL_C      = 0x3,
        CTRL_Z      = 26,
    }
    
    public enum EscapeCodes {
        HOME        = 1,
        INSERT      = 2,
        DELETE      = 3,
        END         = 4,
        PAGE_UP     = 5,
        PAGE_DOWN   = 6,
        CENTER      = 7,
        BACKSPACE   = 8,
        TAB         = 9,
        ENTER       = 10,
        ESCAPE      = 11,
        F1          = 12,
        F2          = 13,
        F3          = 14,
        F4          = 15,
        F5          = 16,
        F6          = 17,
        F7          = 18,
        F8          = 19,
        F9          = 20,
        F10         = 21,
        F11         = 22,
        F12         = 23,
        F13         = 24,
        F14         = 25,
        F15         = 26,
        F16         = 27,
        F17         = 28,
        F18         = 29,
        F19         = 30,
        F20         = 31,
        SPACE       = 32,
        UP          = 33,
        DOWN        = 34,
        RIGHT       = 35,
        LEFT        = 36,
        ERASE_FROM_CURSOR   = 100,
        SET_CURSOR_SIZE     = 101,
        CLEAR_SCREEN        = 102,
        NOCODE              = 999,
    }
}