chunking

I'm using WCF and want to upload a large file from the client to the server. I have investigated and decided to follow the chunking approach outlined at http://msdn.microsoft.com/en-us/library/aa717050.aspx However, this approach (just like streaming) restricts the contract to limited method signitures: [OperationContract(IsOneWay=true)] [ChunkingBehavior(ChunkingAppliesTo.InMessage)] void UploadStream(Stream stream); The sample uses the rather convenient example of uploading a file from a fixed path and saving it to a fixed path on the server. Therefore, my question is how do I pass

I have successfully connected to an HTTP server with ActionScript 3 over sockets. The only problem is, the server is sending chunked HTTP. Is there a generic function in any other language I can look at that clearly shows how to decode the chunking? I'm pretty sure there are no ActionScript libraries around for this. mkoeller The HTTP 1.1 specification (or from W3C ) provides a pseudocode example of how to decode chunked transfer-coding : length := 0 read chunk-size, chunk-extension (if any) and CRLF while (chunk-size > 0) { read chunk-data and CRLF append chunk-data to entity-body length :=

I have got a little file sharing webpage. It's free to use it. I would like to upload files between 0mb and 1GB. I'm searching in Google since two days, but I can't find anything what I needed... My webpage: http://boxy.tigyisolutions.hu However I can upload only 20-30mb now. I would like upload only 1 file at once. But it may be bigger than 500-600mb ... Can anyone help me? I tried jquery fileupload, but it's uploading nothing for me. Ray Nicholus The Blob.slice method will allow you to split up a file client-side into chunks. You must then send each chunk individually. This will only work on

Does anyone know what is a chunker in the context of text processing and what is it's usage? According to these slides , chunking is an alternative to parsing that provides a partial syntactic structure of a sentence, with a limited tree depth, as opposed to full on parsing. It is more limited than full parsing, but is sufficient when it comes to extracting or ignoring information, and is thus many times used, as it's faster and more robust than parsing. Much more information is available in the slides. Further links: More slides Notes from lectures at NYU scozy I don't personally disagree

I'm using .Net 4.0 and SQL server 2008 R2. I'm running a big SQL select query which returns millions of results and takes up a long time to fully run. Does anyone know how can I read only some of the results returned by the query without having to wait for the whole query to complete? In other words, I want to read the first by 10,000 records chunks while the query still runs and getting the next results. It depends in part on whether the query itself is streaming, or whether it does lots of work in temporary tables then (finally) starts returning data. You can't do much in the second scenario

I am writing an HTTP parser for a transparent proxy. What is stumping me is the Trailer: mentioned in the specs for Transfer-Encoding: chunked . What does it look like? Normally, a HTTP chunked ends like this. 0\r\n \r\n What I am confused about is how to detect the end of the chunk if there is some sort of trailing headers... UPDATE: I believe that a simple \r\n\r\n i.e. an empty line is enough to detect the end of trailing headers... Is that correct? appleleaf Below is a copy of an example trailer I copied from The TCP/IP Guide site . As we can see, if we want to use trailer header, we need

I am using this code string location1 = textBox2.Text; byte[] bytes = File.ReadAllBytes(location1); string text = (Convert.ToBase64String(bytes)); richTextBox1.Text = text; But when I use a file that is too big I get out of memory exception. I want to use File.ReadAllBytes in chunks. I have seen code like this below System.IO.FileStream fs = new System.IO.FileStream(textBox2.Text, System.IO.FileMode.Open); byte[] buf = new byte[BUF_SIZE]; int bytesRead; // Read the file one kilobyte at a time. do { bytesRead = fs.Read(buf, 0, BUF_SIZE); // 'buf' contains the last 1024 bytes read of the file. }

I'm having some trouble making a sequence. Basically I need to chop a sequence into a sequence of arrays. Seq.windowed almost does it but I don't want duplicate elements. I can get what I want by reading everything into an array first but I'd rather use a sequence. let array_chunk s (a:int[]) = Array.init (a.Length / s) (fun i -> Array.sub a (i * s) s) someSequence |> Seq.to_array |> array_chunk 5 Here's a nice imperative one that'll work with seq and generate arrays of any size. The last one will be smaller if the sequence isn't even by n. let chunk n xs = seq { let i = ref 0 let arr = ref <|

I'm trying to take a single file object and split it into chunks by a specified chunk size. In my example, trying to split a single file into 1MB chunks. So I figure out how many chunks it would take, then I'm trying to slice the file starting from the 'offset' (current chunk I'm on * chunk size), and slicing off a chunk size. My first slice comes out properly at 1MB but my subsequent slices turn out to 0, any ideas why? Have a working codepen here: http://codepen.io/ngalluzzo/pen/VvpYKz?editors=001[1] var file = $('#uploadFile')[0].files[0]; var chunkSize = 1024 * 1024; var fileSize = file