public CleanupManager(ILogger logger, ICleanableCache cache, CleanupStrategy cs)
{
this.cache = cache;
this.cs = cs;
this.logger = logger;
worker = null;
queue = null;
queue = new CleanupQueue();
//Called each request
cache.CacheResultReturned += delegate(ICleanableCache sender, CacheResult r) {
if (r.Result == CacheQueryResult.Miss)
{
this.AddedFile(r.RelativePath); //It was either updated or added.
}
else
{
this.BeLazy();
}
};
//Called when the file system changes unexpectedly.
cache.Index.FileDisappeared += delegate(string relativePath, string physicalPath) {
logger?.LogWarning("File disappeared from the cache unexpectedly - reindexing entire cache. File name: {0}", relativePath);
//Stop everything ASAP and start a brand new cleaning run.
queue.ReplaceWith(new CleanupWorkItem(CleanupWorkItem.Kind.CleanFolderRecursive, "", cache.PhysicalCachePath));
worker.MayHaveWork();
};
worker = new CleanupWorker(this.logger, cs, queue, cache);
}
/// <summary>
/// Creates and starts a thread that consumes the queue, pausing until notified when 'queue' empties.
/// </summary>
/// <param name="logger"></param>
/// <param name="cs"></param>
/// <param name="queue"></param>
/// <param name="cache"></param>
public CleanupWorker(ILogger logger, CleanupStrategy cs, CleanupQueue queue, ICleanableCache cache) : base("DiskCache-CleanupWorker")
{
this.cs = cs;
this.queue = queue;
this.cache = cache;
this.logger = logger;
t = new Thread(Main)
{
IsBackground = true
};
t.Start();
}