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How to check for file lock?

Code with bulbul answered on September 25, 2021 Popularity 6/10 Helpfulness 1/10

answer How to check for file lock?

How to check for file lock?

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public class FileManager
{
    private string _fileName;

    private int _numberOfTries;

    private int _timeIntervalBetweenTries;

    private FileStream GetStream(FileAccess fileAccess)
    {
        var tries = 0;
        while (true)
        {
            try
            {
                return File.Open(_fileName, FileMode.Open, fileAccess, Fileshare.None); 
            }
            catch (IOException e)
            {
                if (!IsFileLocked(e))
                    throw;
                if (++tries > _numberOfTries)
                    throw new MyCustomException("The file is locked too long: " + e.Message, e);
                Thread.Sleep(_timeIntervalBetweenTries);
            }
        }
    }

    private static bool IsFileLocked(IOException exception)
    {
        int errorCode = Marshal.GetHRForException(exception) & ((1 << 16) - 1);
        return errorCode == 32 || errorCode == 33;
    }

    // other code

}

Popularity 6/10 Helpfulness 1/10 Language csharp

Source: stackoverflow.com

Tags: c# file

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Contributed on Sep 25 2021

Code with bulbul

0 Answers Avg Quality 2/10

How to check for file lock?

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