213 replies to this topic

[JerseyTechGuy]

Hey Dave,   If you remove the 2 unneeded 72mb dat files it will compress to about a meg and a half.   Question...   Why did you remove references to SecretLabs.NETMF.Hardware.NetduinoPlus and replace with SecretLabs.NETMF.Hardware.Netduino?

If you read the firmware documentation for Netduino Plus 2, it uses the SecretLabs.NETMF.Hardware.Netduino DLL not the SecretLabs.NETMF.Hardware.NetduinoPlus DLL. The SecretLabs.NETMF.Hardware.NetduinoPlus DLL is only for the Netduino Plus (1).

[Bendage]

See what I get for assuming??? Thus the Netduino PLUS 2...

 

Thanks. No wonder my damn board wasn't functioning right.

 

Saved the day dude!

[JerseyTechGuy]

See what I get for assuming??? Thus the Netduino PLUS 2...   Thanks. No wonder my damn board wasn't functioning right.   Saved the day dude!

Let us know if you get it running. Always like success stories!

[Bendage]

Ok, I have successfully got this running on N+2 but there is a bug in the socket code that causes the web server to drop the client about 3 out of 5 requests.Here is where the bug is under the server.cs...

 

The problem is that when the socket connects there are not bytes yet in the buffer. If the byte count is 0 he breaks out which causes the client browser to receive a dropped connection. This can be fixed by inserting a thread.sleep(100) up a few lines. Once this sleep is placed initially before the first byte check, the buffer has enough time to start populating. I have commented where the thread.sleep needs to be Fix that and this thing purrs.

 

Very nice web server. TONS of functionality.

private void WaitingForRequest( )        {            while ( true )            {                try                {                    using ( Socket clientSocket = _ListeningSocket.Accept( ) )                    {                        // Add the Thread.Sleep(100) Here                         int availableBytes = 0;                        int newAvBytes;                        //if not all incoming bytes were received by the socket                        do                        {                                                       newAvBytes = clientSocket.Available - availableBytes;                            if ( newAvBytes == 0 )                                break;                            availableBytes += newAvBytes;                            newAvBytes = 0;                            Thread.Sleep(1);                        } while ( true );                        if ( availableBytes > 0 )                        {                            byte[] buffer = new byte[availableBytes > Settings.MAX_REQUESTSIZE ? Settings.MAX_REQUESTSIZE : availableBytes];                            byte[] header = new byte[0];                            int readByteCount = clientSocket.Receive(buffer, buffer.Length, SocketFlags.None);                            for ( int headerend = 0; headerend < buffer.Length - 3; headerend++ )                            {                                if ( buffer[headerend] == 'r' && buffer[headerend + 1] == 'n' && buffer[headerend + 2] == 'r' && buffer[headerend + 3] == 'n' )                                {                                    header = new byte[headerend + 4];                                    Array.Copy(buffer, 0, header, 0, headerend + 4);                                    break;                                }                            }                            //reqeust created, checking the response possibilities                            using ( Request tempRequest = new Request(Encoding.UTF8.GetChars(header), clientSocket) )                            {                                Debug.Print("... Client connected ... URL: " + tempRequest.URL + " ... Final byte count: " + availableBytes);                                if ( tempRequest.Method == "POST" )                                {                                    //POST was incoming, it will be saved to SD card at Settings.POST_TEMP_PATH                                    PostToSdWriter post = new PostToSdWriter(tempRequest, buffer, header.Length);                                    post.Receive( );                                }                                //Let's check if we have to take some action or if it is a file-response                                 HandleGETResponses(tempRequest);                            }                            Debug.Print("Client loop finished");                            try                            {                                //Close client, otherwise the browser / client won't work properly                                clientSocket.Close( );                            }                            catch ( Exception ex )                            {                                Debug.Print(ex.ToString( ));                            }                        }                    }                }                catch ( Exception ex )                {                    Debug.Print(ex.Message);                }            }        }

[Bendage]

Chris, it's difficult to share the code, because VS hangs, the board hangs, the result in th debug window exactly the same of Mercer one. I'm using N2+ with 4.2.1.2 Today i was testing even the netmftoolbox-20443 basic speaker sample, and i had the same result: VS and the board hang. VS must be terminated, and the board must be reflashed. Thank you, and I want to thank you for N2+, absolutely a great project! Gerardo

 

I had the same problem. Flashed my board twice! Daves build works plus the bug fix I posted. Runs fine.

[Bendage]

Chris,
FYI I had the same mercer problem explained here Blue screen.
I first suspected was my pc, but I tried at least 5 times and had always the same result using this web server project. After reflashing the board, I tested may other
project with no problem, as soon as I start this web server everything hangs.
Moreover, trying to detach the USB cable during VS hang, blue screen appears, while terminating VS first and then detach the board no blue screen appear, and I only have to
reflash the board.

Hope this could help you
Gerardo

Hey Gerardo,

 

Never unplug the USB cable while VS is deploying. The BSOD is sure to follow. There is an option to cancel deployment under View/Toolbars/Build

 

Always use this and DO NOT unplug the board. I realize this does not fix the issue that the 3 of us cannot reproduce but there is definitely an issue I can vouch for. Since I just got my N+2 today it will take me a bit of time to figure out whats going on.

[Bendage]

Here is another non trivial fix. There are two threads fighting to flash the onboard LED.

 

In the static main remove the entire while loop with Thread.Sleep(Timeout.Infinite)

[JerseyTechGuy]

Hopefully Markus is monitoring this thread and he can make the appropriate changes.

[JJJ]

Hey Gerardo,

 

Never unplug the USB cable while VS is deploying. The BSOD is sure to follow. There is an option to cancel deployment under View/Toolbars/Build

 

Always use this and DO NOT unplug the board. I realize this does not fix the issue that the 3 of us cannot reproduce but there is definitely an issue I can vouch for. Since I just got my N+2 today it will take me a bit of time to figure out whats going on.

Thanks a lot!

I will never do that

[JJJ]

Ok, I have successfully got this running on N+2 but there is a bug in the socket code that causes the web server to drop the client about 3 out of 5 requests.Here is where the bug is under the server.cs...

 

The problem is that when the socket connects there are not bytes yet in the buffer. If the byte count is 0 he breaks out which causes the client browser to receive a dropped connection. This can be fixed by inserting a thread.sleep(100) up a few lines. Once this sleep is placed initially before the first byte check, the buffer has enough time to start populating. I have commented where the thread.sleep needs to be Fix that and this thing purrs.

 

Very nice web server. TONS of functionality.

private void WaitingForRequest( )        {            while ( true )            {                try                {                    using ( Socket clientSocket = _ListeningSocket.Accept( ) )                    {                        // Add the Thread.Sleep(100) Here                         int availableBytes = 0;                        int newAvBytes;                        //if not all incoming bytes were received by the socket                        do                        {                                                       newAvBytes = clientSocket.Available - availableBytes;                            if ( newAvBytes == 0 )                                break;                            availableBytes += newAvBytes;                            newAvBytes = 0;                            Thread.Sleep(1);                        } while ( true );                        if ( availableBytes > 0 )                        {                            byte[] buffer = new byte[availableBytes > Settings.MAX_REQUESTSIZE ? Settings.MAX_REQUESTSIZE : availableBytes];                            byte[] header = new byte[0];                            int readByteCount = clientSocket.Receive(buffer, buffer.Length, SocketFlags.None);                            for ( int headerend = 0; headerend < buffer.Length - 3; headerend++ )                            {                                if ( buffer[headerend] == 'r' && buffer[headerend + 1] == 'n' && buffer[headerend + 2] == 'r' && buffer[headerend + 3] == 'n' )                                {                                    header = new byte[headerend + 4];                                    Array.Copy(buffer, 0, header, 0, headerend + 4);                                    break;                                }                            }                            //reqeust created, checking the response possibilities                            using ( Request tempRequest = new Request(Encoding.UTF8.GetChars(header), clientSocket) )                            {                                Debug.Print("... Client connected ... URL: " + tempRequest.URL + " ... Final byte count: " + availableBytes);                                if ( tempRequest.Method == "POST" )                                {                                    //POST was incoming, it will be saved to SD card at Settings.POST_TEMP_PATH                                    PostToSdWriter post = new PostToSdWriter(tempRequest, buffer, header.Length);                                    post.Receive( );                                }                                //Let's check if we have to take some action or if it is a file-response                                 HandleGETResponses(tempRequest);                            }                            Debug.Print("Client loop finished");                            try                            {                                //Close client, otherwise the browser / client won't work properly                                clientSocket.Close( );                            }                            catch ( Exception ex )                            {                                Debug.Print(ex.ToString( ));                            }                        }                    }                }                catch ( Exception ex )                {                    Debug.Print(ex.Message);                }            }        }

I had the same problem. Calling the webserver, sometimes (3 out of 5 is a correct statistic), it drops the client.

I'm testing some other solutions (I do not like Thread.Sleep), even if the the Bendage one works for now.

 

As soon as my solution passed my tests I will post it.

Gerardo

[Joshua]

Has anyone tried to use this to receive a JSON posted array?  I am having trouble and when i debug.. It looks like the client is never receiving the full content-length sized byte array.  It gets the header and then crashed on post.receive().  Any ideas?

[JeffJohnson]

This looks like exactly what I've been searching endlessly for.  However, I can't unzip the files b/c they are password-protected.  What am I doing wrong?  I signd into codeplex...

[JerseyTechGuy]

This looks like exactly what I've been searching endlessly for.  However, I can't unzip the files b/c they are password-protected.  What am I doing wrong?  I signd into codeplex...

I just downloaded it and it opened fine. Didn't ask for a password of any kind.

[JeffJohnson]

Greets,

 

I have been trying (and trying) to run this project on my N+2 but am getting deployment errors that I hve gathered (through wonderful folks in chat room) that I need to re-build all the source files to net mf 4.2.  Can one of you smart guys help me do that?  I'd be much obliged.

 

JeffJ

[JerseyTechGuy]

Greets,   I have been trying (and trying) to run this project on my N+2 but am getting deployment errors that I hve gathered (through wonderful folks in chat room) that I need to re-build all the source files to net mf 4.2.  Can one of you smart guys help me do that?  I'd be much obliged.   JeffJ

The link to the ND+2 version is in this thread. I think it is post #91 if I recall. I posted a link to my dropbox account to download it.

[Nevyn]

The link to the ND+2 version is in this thread. I think it is post #91 if I recall. I posted a link to my dropbox account to download it.

It was indeed post #91 and I can verify that it does work as I loaded it onto my N+2 a few days ago.

 

Regards,

Mark

[Joshua]

I'm having trouble receiving post data with this.  I have a var set which has some JSON data in it.  When i try to post that data with the below button code, chrome shows it as posting all of the data, but when you look at what was received by the n+2 by putting a break point at the end of the post.receive() code.. All there is is the header.. and nothing after it.

$("input:submit").button().click(function(){        $.ajax({                url:'/SaveConfig',                type:'POST',                dataType:'json',                data:{json:JSON.stringify(config)},                success: function (data)                {                    var obj = $.parseJSON(data);                }            });});});

[JerseyTechGuy]

I'm having trouble receiving post data with this.  I have a var set which has some JSON data in it.  When i try to post that data with the below button code, chrome shows it as posting all of the data, but when you look at what was received by the n+2 by putting a break point at the end of the post.receive() code.. All there is is the header.. and nothing after it.

$("input:submit").button().click(function(){        $.ajax({                url:'/SaveConfig',                type:'POST',                dataType:'json',                data:{json:JSON.stringify(config)},                success: function (data)                {                    var obj = $.parseJSON(data);                }            });});});

Have you checked to see what was written to the SD card or stepped into the post.Request( ); function further? I haven't looked thoroughly at the code but I believe you only see the header up to that point but stepping farther into the code it parses out the content and writes it.

[Joshua]

Have you checked to see what was written to the SD card or stepped into the post.Request( ); function further? I haven't looked thoroughly at the code but I believe you only see the header up to that point but stepping farther into the code it parses out the content and writes it.

I have stepped into the post.Request() code and it throws an exception at the end of it because there are no additional bytes received after the header is.  So it throws a null reference exception.  Nothing was written to the temp post file either.

[JerseyTechGuy]

Are you able to post a small test project to test with?  I don't have a spare ND+2 setup right now, but I could try to take a step through it.  You may also want to try and reach out to Markus VV since he wrote it.  He may be able to give more guidance.  He doesn't come on that often it appears.  He's been offline since Dec 12th.