public WalkerThread(FileSystemDirectoryWalker walker, Func <WalkerItem, Task> callback)
: base(null)
{
_walker = walker;
_callback = callback;
_loopTask = Task.Factory.StartNew(
Loop,
_cancellationTokenSource.Token,
TaskCreationOptions.LongRunning,
TaskScheduler.Default);
}
private static async IAsyncEnumerable <FileSystemWalkerEntry> EnumerateAllFiles(
ISingletonFileSystem singletonFileSystem,
FileHandle rootFileHandle)
{
var directoryWalker = new FileSystemDirectoryWalker(singletonFileSystem, rootFileHandle);
await foreach (var directory in directoryWalker)
{
foreach (var entries in directory.Entries)
{
yield return(new FileSystemWalkerEntry(entries.FileHandle, entries.Stats, PathLib.Join(directory.Path, entries.Name)));
}
}
}
public async Task FeatureTest()
{
var fs = await TestFileSystem();
var walker = new FileSystemDirectoryWalker(fs, await fs.CreateFileHandle(Url.Parse("file://test/")));
await foreach (var item in walker)
{
Console.WriteLine(item.FileHandle);
foreach (var dirent in item.Entries)
{
Console.WriteLine($"\t{dirent.Name}\t\t{dirent.Stats.Type}");
}
}
}
public async Task CallbackThrowsTest()
{
var callbackCount = 0;
var fs = await TestFileSystem();
var walker = new FileSystemDirectoryWalker(fs, await fs.CreateFileHandle(Url.Parse("file://test/")));
using var walkerThread = walker.StartWalkerThread(_ =>
{
callbackCount++;
if (callbackCount % 2 == 0)
{
// throw exception should not affect the walker
throw new InvalidOperationException();
}
return(Task.CompletedTask);
});
await walkerThread.WaitFullWalk();
}
