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using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.IO;
using System.Linq;
using System.Text;
using System.Threading;
namespace com.clusterrr.clovershell
{
internal class ExecConnection : IDisposable
{
internal readonly ClovershellConnection connection;
internal readonly string command;
internal Stream stdin;
internal Int32 stdinPipeSize;
internal Int32 stdinQueue;
internal Stream stdout;
internal Stream stderr;
internal int id;
internal bool finished;
internal int result;
internal bool stdinFinished;
internal bool stdoutFinished;
internal bool stderrFinished;
internal Thread stdinThread;
internal DateTime LastDataTime;
public ExecConnection(ClovershellConnection connection, string command, Stream stdin, Stream stdout, Stream stderr)
{
this.connection = connection;
this.command = command;
id = -1;
stdinPipeSize = 0;
stdinQueue = 0;
this.stdin = stdin;
this.stdout = stdout;
this.stderr = stderr;
finished = false;
stdinFinished = false;
stdoutFinished = false;
stderrFinished = false;
LastDataTime = DateTime.Now;
}
public void stdinLoop()
{
try
{
if (stdin == null) return;
if (stdin.CanSeek)
stdin.Seek(0, SeekOrigin.Begin);
var buffer = new byte[8 * 1024];
int l;
while (connection.IsOnline)
{
l = stdin.Read(buffer, 0, buffer.Length);
if (l > 0)
connection.writeUsb(ClovershellConnection.ClovershellCommand.CMD_EXEC_STDIN, (byte)id, buffer, 0, l);
else
break;
LastDataTime = DateTime.Now;
if (stdinQueue > 32 * 1024 && connection.IsOnline)
{
Debug.WriteLine(string.Format("queue: {0} / {1}, {2}MB / {3}MB ({4}%)",
stdinQueue, stdinPipeSize, stdin.Position / 1024 / 1024, stdin.Length / 1024 / 1024, 100 * stdin.Position / stdin.Length));
while (stdinQueue > 16 * 1024)
{
Thread.Sleep(50);
connection.writeUsb(ClovershellConnection.ClovershellCommand.CMD_EXEC_STDIN_FLOW_STAT_REQ, (byte)id);
}
}
}
connection.writeUsb(ClovershellConnection.ClovershellCommand.CMD_EXEC_STDIN, (byte)id); // eof
if (stdinQueue > 0 && connection.IsOnline)
{
Thread.Sleep(50);
connection.writeUsb(ClovershellConnection.ClovershellCommand.CMD_EXEC_STDIN_FLOW_STAT_REQ, (byte)id);
}
stdinFinished = true;
}
catch (ThreadAbortException) { }
catch (ClovershellException ex)
{
Debug.WriteLine("stdin error: " + ex.Message + ex.StackTrace);
}
finally
{
stdinThread = null;
}
}
public void Dispose()
{
if (stdinThread != null)
stdinThread.Abort();
}
}
}
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