ReadAllBytesAsync()

static Task< byte[]> System.IO.File.ReadAllBytesAsync ( string path, CancellationToken cancellationToken = default(CancellationToken) )

inlinestatic

Definition at line 724 of file File.cs.

    {
        if (cancellationToken.IsCancellationRequested)
        {
            return Task.FromCanceled<byte[]>(cancellationToken);
        }
        FileStream fileStream = new FileStream(path, FileMode.Open, FileAccess.Read, FileShare.Read, 1, FileOptions.Asynchronous | FileOptions.SequentialScan);
        bool flag = false;
        try
        {
            long length = fileStream.Length;
            if (length > int.MaxValue)
            {
                IOException ex = new IOException(SR.IO_FileTooLong2GB);
                ExceptionDispatchInfo.SetCurrentStackTrace(ex);
                return Task.FromException<byte[]>(ex);
            }
            flag = true;
            return (length > 0) ? InternalReadAllBytesAsync(fileStream, (int)length, cancellationToken) : InternalReadAllBytesUnknownLengthAsync(fileStream, cancellationToken);
        }
        finally
        {
            if (!flag)
            {
                fileStream.Dispose();
            }
        }
    }

References System.cancellationToken, System.Threading.Tasks.Task< TResult >.FromCanceled(), System.Threading.Tasks.Task< TResult >.FromException(), System.IO.File.InternalReadAllBytesAsync(), System.IO.File.InternalReadAllBytesUnknownLengthAsync(), System.SR.IO_FileTooLong2GB, System.length, and System.Runtime.ExceptionServices.ExceptionDispatchInfo.SetCurrentStackTrace().