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/****************************************************************************
**
** Copyright (C) 2019 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the Qt VS Tools.
**
** $QT_BEGIN_LICENSE:GPL-EXCEPT$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3 as published by the Free Software
** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
** be met: https://www.gnu.org/licenses/gpl-3.0.html.
**
** $QT_END_LICENSE$
**
****************************************************************************/
using System;
using System.IO.Pipes;
using System.Text;
using System.Threading;
using System.Threading.Tasks;
using Microsoft.VisualStudio.Shell;
using Microsoft.VisualStudio.Threading;
using EnvDTE;
using EnvDTE80;
using Task = System.Threading.Tasks.Task;
using Process = System.Diagnostics.Process;
namespace QtVsTest.Macros
{
/// <summary>
/// Provides test clients with macro compilation and execution services
/// </summary>
class MacroServer
{
public CancellationTokenSource Loop { get; }
AsyncPackage Package { get; }
JoinableTaskFactory JoinableTaskFactory { get; }
/// <summary>
/// Macro server constructor
/// </summary>
/// <param name="package">QtVSTest extension package</param>
/// <param name="joinableTaskFactory">Task factory, enables joining with UI thread</param>
public MacroServer(AsyncPackage package, JoinableTaskFactory joinableTaskFactory)
{
Package = package;
JoinableTaskFactory = joinableTaskFactory;
Loop = new CancellationTokenSource();
}
/// <summary>
/// Server loop
/// </summary>
public async Task LoopAsync()
{
await JoinableTaskFactory.SwitchToMainThreadAsync(Loop.Token);
var DTE = await Package.GetServiceAsync(typeof(DTE)) as DTE2;
var mainWindowHWnd = new IntPtr((long)DTE.MainWindow.HWnd);
await TaskScheduler.Default;
var pipeName = string.Format("QtVSTest_{0}", Process.GetCurrentProcess().Id);
while (!Loop.Token.IsCancellationRequested) {
using (var pipe = new NamedPipeServerStream(pipeName, PipeDirection.InOut)) {
// Clean-up previous macro session
Macro.Reset();
await pipe.WaitForConnectionAsync(Loop.Token);
if (Loop.Token.IsCancellationRequested)
break;
while (!Loop.Token.IsCancellationRequested && pipe.IsConnected) {
byte[] data = new byte[4];
await pipe.ReadAsync(data, 0, 4, Loop.Token);
if (Loop.Token.IsCancellationRequested)
break;
if (pipe.IsConnected) {
int size = BitConverter.ToInt32(data, 0);
data = new byte[size];
await pipe.ReadAsync(data, 0, size, Loop.Token);
if (Loop.Token.IsCancellationRequested)
break;
var macro = new Macro(
Package, DTE, mainWindowHWnd, JoinableTaskFactory, Loop.Token);
await macro.CompileAsync(Encoding.UTF8.GetString(data));
if (macro.AutoRun)
await macro.RunAsync();
data = Encoding.UTF8.GetBytes(macro.Result);
size = data.Length;
await pipe.WriteAsync(BitConverter.GetBytes(size), 0, 4, Loop.Token);
if (Loop.Token.IsCancellationRequested)
break;
await pipe.WriteAsync(data, 0, size, Loop.Token);
if (Loop.Token.IsCancellationRequested)
break;
await pipe.FlushAsync(Loop.Token);
if (Loop.Token.IsCancellationRequested)
break;
pipe.WaitForPipeDrain();
if (macro != null && macro.Ok && macro.AutoRun && macro.QuitWhenDone) {
await JoinableTaskFactory.SwitchToMainThreadAsync(Loop.Token);
if (DTE != null) {
DTE.Solution.Close(false);
DTE.Quit();
}
await TaskScheduler.Default;
Loop.Cancel();
}
}
}
}
}
}
}
}
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