How can I get a list of all open named pipes in Windows and avoiding possible exceptions?

Question

Getting the list of named pipes is in ideal case pretty simple and can be found here: How can I get a list of all open named pipes in Windows?

But mentioned solutio

Answer 1

Using one of the .NET 4 APIs returning IEnumerable, you can catch those exceptions:

static IEnumerable EnumeratePipes() {
    bool MoveNextSafe(IEnumerator enumerator) {

        // Pipes might have illegal characters in path. Seen one from IAR containing < and >.
        // The FileSystemEnumerable.MoveNext source code indicates that another call to MoveNext will return
        // the next entry.
        // Pose a limit in case the underlying implementation changes somehow. This also means that no more than 10
        // pipes with bad names may occur in sequence.
        const int Retries = 10;
        for (int i = 0; i < Retries; i++) {
            try {
                return enumerator.MoveNext();
            } catch (ArgumentException) {
            }
        }
        Log.Warn("Pipe enumeration: Retry limit due to bad names reached.");
        return false;
    }

    using (var enumerator = Directory.EnumerateFiles(@"\\.\pipe\").GetEnumerator()) {
        while (MoveNextSafe(enumerator)) {
            yield return enumerator.Current;
        }
    }
}

The badly named pipes are not enumerated in the end, of course. So, you cannot use this solution if you really want to list all of the pipes.