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Questions tagged [bufferedstream]

31 questions
11
votes
4 answers

C# - StreamReader.ReadLine does not work properly!

Simply I have been trying to implement what BufferedStreamReader does in Java. I have a socket stream open and just want to read it in a line-oriented fashion - line by line. I have the following server-code. while (continueProcess) { …
Aleyna
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2 answers

Why would BufferedStream.Write throw "This stream does not support seek operations"?

This one puzzles me. I get an error about seek when I'm not even calling it? I have code that looks something like this: // send 42 uint value = 42; byte[] msg = BitConverter.GetBytes(value); stream.Write(msg, 0, sizeof(uint)); and I get this…
redtuna
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4
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1 answer

Call finish-output from format

I noticed that there is no format directive which would call force-output/finish-output. Why? It does seem to be useful in user interaction, cf. Lisp format and force-output. E.g., ~= could translate to finish-output, and ~:= to force-output. I…
sds
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3
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0 answers

Convert BufferedReader To InputStream

I just finished writing a bunch of code that works fine when reading from internal resource :)))) try { SeriesDataXMLPullParserHandler seriesDataXmlPullParserHandler = new SeriesDataXMLPullParserHandler(); entries =…
Shahrooz Andrea
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2
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3 answers

Are there an alternative to System.IO.BufferedStream in C#?

I receive the follow exception: System.NotSupportedException : This stream does not support seek operations. at System.Net.Sockets.NetworkStream.Seek(Int64 offset, SeekOrigin origin) at System.IO.BufferedStream.FlushRead() at…
Horcrux7
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2
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1 answer

BufferedStream Flush() doesn't write to MemoryStream()?

I was trying out BufferedStream over MemoryStream: using (var ms = new MemoryStream(64)) using (var bs = new BufferedStream(ms, 32)) { var buffer = new byte[] { 0xab, 0xab, 0xab, 0xab }; bs.Write(buffer, 0, buffer.Length); bs.Flush(); …
Shmoopy
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2
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1 answer

What is the best way to read the uploaded files from Request.Files, StreamReader or BinaryReader or BufferedStream?

I have a form where the user can upload multiple files. I am using MVC 2.0 and in my controller I need to call a webservice that is a common import interface requires the files to passed in as byte[]. .NET exposes Request.Files as a…
R N
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2
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1 answer

How does Stream.Dispose(bool) get called by the Finalize method?

The Stream.Dispose(bool) docs say: This method is called by the public Dispose method and the Finalize method. [..] Finalize invokes Dispose with disposing set to false. However, neither Stream nor its super class MarshalByRefObject have a…
Evgeniy Berezovsky
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2
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1 answer

Getting number of disk accesses from BufferedStream

I'm reading a binary file using BinaryReader. I want to count the number of disk accesses when buffering input with BufferedStream. Unfortunately this class is sealed, so I can't override method to count it manually. Is there any way of doing it…
dulek
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1 answer

C# BufferedStream - Is it possible to know advancement?

I'm writing a simple checksum generator app using C# for large files. It's working quite fine, but users would like to see some sort of progress bar since the app freezes for a a few dozen seconds. Here is a a sample of code I use (BufferedStream…
May.D
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2 answers

Java InputStreamReader Error (org.apache.poi.openxml4j.exceptions.InvalidOperationException)

I am trying to convert pptx files to txt (Text Extraction) using Apache POI Framework (Java). I'm new in coding Java, so I don't know a lot about Buffered Readers/InputStream, etc. What I tried is: import org.apache.poi.xslf.XSLFSlideShow; import…
Nicola
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1
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2 answers

Why doesn't text get written to disk?

I have the following C# code: private const int APPENDBUFFERSIZE = 65536; private StreamWriter _streamWriter; private FileStream _fileStream; private BufferedStream _bufferedStream; public void Open(string fileName) { _fileStream =…
MciprianM
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2 answers

FileStream and it's buffering strategy

I've found out that there is no point in using BufferedStream in conjunction with FileStream as it has it's own buffering strategy. Yet, I was wondering about one thing: FileStream fsWithBuffer = new FileStream("buf.dat", FileMode.OpenOrCreate, …
Paweł Poręba
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2 answers

Understanding Various I/O systems java

i have been reading through the java tutorials on oracle.com recently and i am trying to understand I/O. But there are so many things, a lot of which appear to be the same, such as: Data streams Scanner printwriter buffered streams file i/o…
GHroat
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How to search for list of keywords from text file using buffered stream I/O Java

I am new to programming and still studying in uni. I got an assignment and I am confused. I need to search for a list of keywords using Buffered Stream I/O and return the line that contains the keywords. Please help me as I don't know how to do…
Gurjit Singh
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