Multithreaded file recording

Question

I am trying to write to different parts of a large file using multiple threads, as a segmented file loader would do.

My question is: what is the safe way to do this? Open a file for writing, create my streams, transfer a Stream object to each stream? I do not want an error to occur, since multiple threads are accessing the same object at the same time.

This, by the way, is C #.

Answer 1

I personally suggest you get data in multiple threads, but actually write to it from one thread. Most likely, it will be much easier. You can use the producer / consumer queue (which is very simple in .NET 4), and each manufacturer will feed the "index, data" pairs. Then the consumer stream could simply sequentially search, write, search, write, etc.

Answer 2

If it was programming on Linux, I would recommend that you study the command pwrite()that writes the buffer to the file at a given offset. However, a cursory search for C # documentation does not cause anything like this. Does anyone know if a similar function exists?

Answer 3

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