filestream

I'm making a simple file transfer sender and receiver app through the wire. What I have so far is that the sender converts the file into a byte array and sends chunks of that array to the receiver. This works with file of up to 256mb , but anything above, the line: byte[] buffer = StreamFile(fileName); //This is where I convert the file Throws a System out of memory exception. I'm looking for a way to read the file in chunks then write that chunk instead of loading the whole file into a byte . How can I do this with a FileStream ? EDIT: Sorry, heres my crappy code so far: private void btnSend

Suppose I'm writing a couple of files to disk, between 2MB and 5GB. What are sensible buffer values for the FileStream ? Is it sensible to work with buffersizes of several megabytes, or should I stick to kilobyte-buffers ? Rubens Farias Default buffer size is 4 KiB. Also, take a look here: Sequential File Programming Patterns and Performance with .NET A quick little benchmark based on the document referenced shows no increase in performance on my system greater than 128KB buffer size. Your mileage may vary, feel free to use the below. Stopwatch sw = new Stopwatch(); Random rand = new Random();

I know in C++, you're able to peek at the next character by using: in.peek(); . How would I go about this when trying to "peek" at the next character of a file in C? fgetc + ungetc . Maybe something like this: int fpeek(FILE *stream) { int c; c = fgetc(stream); ungetc(c, stream); return c; } You could use a getc followed by an ungetc Charles Ma you'll need to implement it yourself. use fread to read the next character and fseek to go back to where you were before the read EDIT : int fsneaky(FILE *stream, int8_t *pBuff, int sz) { sz = fread(pBuff, 1, sz, stream) fseek(pFile, -sz, SEEK_CUR);

I'm debugging some issues with writing pieces of an object to a file and I've gotten down to the base case of just opening the file and writing "TEST" in it. I'm doing this by something like: static FileStream fs; static BinaryWriter w; fs = new FileStream(filename, FileMode.Create); w = new BinaryWriter(fs); w.Write("test"); w.Close(); fs.Close(); Unfortunately, this ends up prepending a box to the front of the file and it looks like so: TEST, with a fun box on the front. Why is this, and how can I avoid it? Edit: It does not seem to be displaying the box here, but it's the unicode character

I am in process of sending the file along with HttpWebRequest. My file will be from FileUpload UI. Here I need to convert the File Upload to filestream to send the stream along with HttpWebRequest. How do I convert the FileUpload to a filestream? Since FileUpload.PostedFile.InputStream gives me Stream, I used the following code to convert it to byte array public static byte[] ReadFully(Stream input) { byte[] buffer = new byte[input.Length]; //byte[] buffer = new byte[16 * 1024]; using (MemoryStream ms = new MemoryStream()) { int read; while ((read = input.Read(buffer, 0, buffer.Length)) > 0) {