private static void DoDownLevelSendFileCallback(IAsyncResult result, DownLevelSendFileAsyncResult context)
{
try
{
while (true)
{
if (!context.writing)
{
int read = context.fileStream.EndRead(result);
if (read > 0)
{
context.writing = true;
result = context.socket.BeginSend(context.buffer, 0, read, SocketFlags.None, new AsyncCallback(DownLevelSendFileCallback), context);
if (!result.CompletedSynchronously)
break;
}
else
{
DownLevelSendFileCleanup(context.fileStream);
context.InvokeCallback();
break;
}
}
else
{
int written = context.socket.EndSend(result);
context.writing = false;
result = context.fileStream.BeginRead(context.buffer, 0, context.buffer.Length, new AsyncCallback(DownLevelSendFileCallback), context);
if (!result.CompletedSynchronously)
break;
}
}
}
catch (Exception exception)
{
if (NclUtilities.IsFatal(exception))
throw;
DownLevelSendFileCleanup(context.fileStream);
context.InvokeCallback(exception);
}
}
private static void DoDownLevelSendFileCallback(IAsyncResult result, DownLevelSendFileAsyncResult context)
{
try
{
Label_0000:
if (!context.writing)
{
int size = context.fileStream.EndRead(result);
if (size > 0)
{
context.writing = true;
result = context.socket.BeginSend(context.buffer, 0, size, SocketFlags.None, new AsyncCallback(Socket.DownLevelSendFileCallback), context);
if (result.CompletedSynchronously)
{
goto Label_0000;
}
}
else
{
DownLevelSendFileCleanup(context.fileStream);
context.InvokeCallback();
}
}
else
{
context.socket.EndSend(result);
context.writing = false;
result = context.fileStream.BeginRead(context.buffer, 0, context.buffer.Length, new AsyncCallback(Socket.DownLevelSendFileCallback), context);
if (result.CompletedSynchronously)
{
goto Label_0000;
}
}
}
catch (Exception exception)
{
if (NclUtilities.IsFatal(exception))
{
throw;
}
DownLevelSendFileCleanup(context.fileStream);
context.InvokeCallback(exception);
}
}
