async Task IAsyncCache.InitAsync(InitInput input)
{
var entered = false;
try
{
entered = _syncRoot.WaitOne(Timeout.Infinite);
if (entered)
{
input.Validate();
_logger = input.Logger;
_combinedCts = CancellationTokenSource.CreateLinkedTokenSource(_cts.Token, input.Token);
_cancelToken = _combinedCts.Token;
_gotoDbForMissingKey = input.CacheConfig.GoToDbForMissingKey;
((IReloadable)this).ReloadOnceImmediate = input.CacheConfig.ReloadFromFileFirst;
_cacheData = CreateCacheDataInstance(input.CacheConfig,
CreateCacheSerializer(input.TopLevelLocalDirectory, false));
_additionalData = CreateAdditionalCacheDataInstance(input.CacheConfig,
CreateCacheSerializer(input.TopLevelLocalDirectory.CreateSubdirectory(AdSubFolder), true));
var cacheWorkerInitializer = CacheWorkerInitializer(input);
var instances = await cacheWorkerInitializer.InitInstances().ConfigureAwait(false);
//item 1 is actual cache worker
_cacheWorker = instances.Item1;
//item 2 is additional data worker.
_additionalDataWorker = instances.Item2;
await InternalReload(_cancelToken).ConfigureAwait(false);
//Thread.MemoryBarrier();
//Post init actions.
instances = cacheWorkerInitializer.PostInitInstances();
//item 1 is actual cache worker
_cacheWorker = instances.Item1;
//item 2 is additional data worker.
_additionalDataWorker = instances.Item2;
//Thread.MemoryBarrier();
_cacheScheduler = new CacheScheduler(this, input.ReloadConfig, _cancelToken, _logger, _name);
_runningInInitPhase = false;
}
}
finally
{
if (entered)
{
_syncRoot.Set();
}
}
}
public async Task FreshLoadToAsync(AsyncCacheData <TKey, TValue> data, CancellationToken token)
{
try
{
data.Clear();
await LoadAsync(data, token).ConfigureAwait(false);
token.ThrowIfCancellationRequested();
await SerializeAsync(data).ConfigureAwait(false);
}
catch (OperationCanceledException)
{
throw;
}
catch (Exception e)
{
if (Fallback == null)
{
throw new AsyncCacheException(AsyncCacheErrorCode.InvalidCache, "Unknown Error", e);
}
await Fallback.FreshLoadToAsync(data, token).ConfigureAwait(false);
}
}
protected abstract Task LoadAsync(AsyncCacheData <TKey, TValue> emptyData, CancellationToken token);