public override void Listen(DebugStreamContext context, ITailCallback callback, WaitHandle abortSignal)
{
// Everything after the first DWORD is our debugging text.
bool isWow64 = Win32Native.IsWow64Process();
IntPtr pString = isWow64
? new IntPtr(_sharedMemory.ToInt32() + Marshal.SizeOf(typeof(int)))
: new IntPtr(_sharedMemory.ToInt64() + Marshal.SizeOf(typeof(int)));
_logger.Information(isWow64 ? "Running in WOW64." : "Not running in WOW64.");
while (!abortSignal.WaitOne(0))
{
// We're ready to receive new buffer data.
Win32Native.SetEvent(_bufferReadyEvent);
int ret = Win32Native.WaitForSingleObject(_readyEvent, 500);
if (ret == Win32Native.WAIT_OBJECT_0)
{
// Get the process ID and the message.
Marshal.ReadInt32(_sharedMemory);
var message = Marshal.PtrToStringAnsi(pString);
// Publish the message.
callback.Publish(message);
}
}
}
public TailListenerThread(int id, ITailCallback callback, ITailStreamListener listener, ITailStreamContext context)
{
_id = id;
_callback = callback;
_listener = listener;
_context = context;
_stopSignal = new ManualResetEvent(false);
_stoppedSignal = new ManualResetEvent(false);
_thread = new Thread(Execute);
_thread.IsBackground = true;
}
public TailListenerThread(int id, ITailCallback callback, ITailStreamListener listener, ITailStreamContext context)
{
_id = id;
_callback = callback;
_listener = listener;
_context = context;
_stopSignal = new ManualResetEvent(false);
_stoppedSignal = new ManualResetEvent(false);
_thread = new Thread(Execute);
_thread.IsBackground = true;
}
public override void Listen(FileStreamContext context, ITailCallback callback, WaitHandle abortSignal)
{
// Wait for a file to be loaded.
var file = new FileInfo(context.Path);
if (!file.Exists)
{
return;
}
using (var reader = new StreamReader(file.Open(FileMode.Open, FileAccess.Read, FileShare.ReadWrite)))
{
long lastOffset = reader.BaseStream.Length;
if (reader.BaseStream.Length > 0)
{
// Send the last 10 kb of text to the reader.
lastOffset = Math.Max(0, reader.BaseStream.Length - (1024 * 10));
}
while (!abortSignal.WaitOne(100))
{
// Idle if file hasn't changed.
if (reader.BaseStream.Length <= lastOffset)
{
if (reader.BaseStream.Length < lastOffset)
{
lastOffset = reader.BaseStream.Length;
}
continue;
}
// Read the data.
reader.BaseStream.Seek(lastOffset, SeekOrigin.Begin);
var delta = reader.BaseStream.Length - lastOffset;
var buffer = new char[delta];
reader.ReadBlock(buffer, 0, buffer.Length);
// Publish the data.
callback.Publish(new string(buffer));
// Update the offset.
lastOffset = reader.BaseStream.Position;
}
}
}
void ITailStreamListener.Listen(ITailStreamContext context, ITailCallback callback, WaitHandle abortSignal)
{
Listen((TContext)context, callback, abortSignal);
}
public abstract void Listen(TContext context, ITailCallback callback, WaitHandle abortSignal);
public void Listen(ITailStreamContext context, ITailCallback callback, System.Threading.WaitHandle abortSignal)
{
}
public void Listen(ITailStreamContext context, ITailCallback callback, System.Threading.WaitHandle abortSignal)
{
}
