AsyncFtpClient lead to memory leak due to CancellationTokenSource

[AveiShriety]

ver: 53.0.1
I need to syncly download ftp files to local, so I continuously fetch ftp dir and download files by using AsyncFtpClient's function[GetListing or GetListingEnumerable, DownloadFile] in 10-second intervals.
When using async class to operate ftp, it will cause A large number of newly created object [CancellationTokenSource]. I see it in vs2026's Diagnostic Tools

await foreach (var item in client.GetListingEnumerable(rPath, FtpListOption.Modify)); await client.DownloadFile(dest, path, FtpLocalExists.Overwrite, FtpVerify.None);

I even define parameters [CancellationTokenSource cts]'token for these method, it also cause memory leak due to CancellationTokenSource.

So I use FtpClient instead of AsyncFtpClient by sync class. Is it a bug?

[Seabizkit]

please put all the code needed to reproduce.. and please format

await foreach (var item in client.GetListingEnumerable(rPath, FtpListOption.Modify))
{
    var remotePath = item.FullName;
    var localPath = Path.Combine(dest, item.Name);

    await client.DownloadFile(
        localPath,
        remotePath,
        FtpLocalExists.Overwrite,
        FtpVerify.None
    );
}

Also in this example there is no CancellationTokenSource... so you your example is not complete..

[AveiShriety]

已收到，冯唯一。