public IObservable <Unit> Insert(string key, byte[] data, DateTimeOffset?absoluteExpiration = null)
{
if (disposed)
{
return(Observable.Throw <Unit>(new ObjectDisposedException("PersistentBlobCache")));
}
if (key == null || data == null)
{
return(Observable.Throw <Unit>(new ArgumentNullException()));
}
// NB: Since FetchOrWriteBlobFromDisk is guaranteed to not block,
// we never sit on this lock for any real length of time
lock (MemoizedRequests)
{
MemoizedRequests.Invalidate(key);
var err = MemoizedRequests.Get(key, data);
// If we fail trying to fetch/write the key on disk, we want to
// try again instead of replaying the same failure
err.LogErrors("Insert").Subscribe(
x => CacheIndex[key] = new CacheIndexEntry(Scheduler.Now, absoluteExpiration),
ex => Invalidate(key));
return(err.Select(_ => Unit.Default));
}
}
public IObservable<Unit> Insert(string key, byte[] data, DateTimeOffset? absoluteExpiration = null)
{
if (key == null || data == null)
{
return Observable.Throw<Unit>(new ArgumentNullException());
}
// NB: Since FetchOrWriteBlobFromDisk is guaranteed to not block,
// we never sit on this lock for any real length of time
AsyncSubject<byte[]> err;
lock (memoizedRequests)
{
if (disposed) return Observable.Throw<Unit>(new ObjectDisposedException("PersistentBlobCache"));
memoizedRequests.Invalidate(key);
err = memoizedRequests.Get(key, data);
}
// If we fail trying to fetch/write the key on disk, we want to
// try again instead of replaying the same failure
err.LogErrors("Insert").Subscribe(
x => CacheIndex[key] = new CacheIndexEntry(Scheduler.Now, absoluteExpiration),
ex => Invalidate(key));
return err.Select(_ => Unit.Default);
}
public void Insert(string key, byte[] data, DateTimeOffset? absoluteExpiration = null)
{
if (disposed) throw new ObjectDisposedException("PersistentBlobCache");
if (key == null || data == null)
{
throw new ArgumentNullException();
}
// NB: Since FetchOrWriteBlobFromDisk is guaranteed to not block,
// we never sit on this lock for any real length of time
lock (MemoizedRequests)
{
MemoizedRequests.Invalidate(key);
var err = MemoizedRequests.Get(key, data);
// If we fail trying to fetch/write the key on disk, we want to
// try again instead of replaying the same failure
err.LogErrors("Insert").Subscribe(
x => CacheIndex[key] = new CacheIndexEntry(Scheduler.Now, absoluteExpiration),
ex => Invalidate(key));
}
}
