[mono-android] Copy from a file stream to another file stream interruped by 'INTERRUPTION_REQUESTED_HANDLE'

[klimaye]

We are seeing the log below when a stream to stream copy is occurring over
the wireless.

The stream copy works fine for file size less than 10 mb. The file copy in
question is a 12 mb file.

It looks like the issue is happening in the framework level code.

Any pointers/help/workarounds would be great

Thanks

-----Code---------

public static void CopyStreamTo(this Stream input, Stream output)
        {
            //use 32kb blocks
            byte[] buffer = new byte[32 * 1024];
            int len;
            var streamLength = input.Length;
            Android.Util.Log.Info("app", string.Format("total input stream
length = {0}", streamLength));
            output.SetLength(streamLength);
            int counter = 0;
            while ((len = input.Read(buffer, 0, buffer.Length)) > 0)
            {
                if (counter % 23 == 0)
                    Android.Util.Log.Info("app", string.Format("still
copying from stream to stream {0}", counter));
                output.Write(buffer, 0, len);
                counter++;
            }
}

----------------Log-----------
06-14 17:28:39.320 I/sssvida ( 3072): total input stream length = 12496896
..
..
06-14 17:28:42.930 I/app( 3072): still copying from stream to stream 1196
06-14 17:28:42.940 F/        ( 3072): * Assertion at
/Users/builder/data/lanes/monodroid-mac-4.2-series/804357b4/source/mono/mono/io-layer/wthreads.c:1343,
condition `prev_handle == INTERRUPTION_REQUESTED_HANDLE' not met
06-14 17:28:42.940 I/mono    ( 3072): Stacktrace:
06-14 17:28:42.940 I/mono    ( 3072): 
06-14 17:28:42.940 I/mono    ( 3072):   at System.Threading.Monitor.TryEnter
(object,int,bool&) <IL 0x00044, 0x001e3>
06-14 17:28:42.940 I/mono    ( 3072):   at System.Threading.Monitor.Enter
(object,bool&) <IL 0x00003, 0x00053>
06-14 17:28:42.940 I/mono    ( 3072):   at
System.Net.WebAsyncResult.get_IsCompleted () <IL 0x0000c, 0x000b7>
06-14 17:28:42.940 I/mono    ( 3072):   at
System.Net.WebConnectionStream.EndRead (System.IAsyncResult) <IL 0x00030,
0x0023b>
06-14 17:28:42.940 I/mono    ( 3072):   at
System.Net.WebConnectionStream.ReadCallbackWrapper (System.IAsyncResult) <IL
0x0002b, 0x0019b>
06-14 17:28:42.940 I/mono    ( 3072):   at System.Net.WebAsyncResult.CB
(object) <IL 0x00007, 0x0005f>
06-14 17:28:42.940 I/mono    ( 3072):   at (wrapper runtime-invoke)
<Module>.runtime_invoke_void__this___object (object,intptr,intptr,intptr)
<IL 0x00052, 0xffffffff>


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