public void Get(VoosAsset asset, ProcessAsset process)
{
string uri = asset.GetUri();
if (cacheByUri.ContainsKey(uri))
{
// We could call process immediately, but that makes this inconsistent.
// We should maintain the invariant that process is ALWAYS called asynchronously.
StartCoroutine(DeferredProcess(asset, process));
}
else
{
if (activeDownloadWaiters.ContainsKey(uri))
{
// Someone else already requested this, so just add ourselves to the wait list.
activeDownloadWaiters[uri].Add(process);
}
else
{
// Start a new wait list.
List <ProcessAsset> waitList = new List <ProcessAsset>();
waitList.Add(process);
activeDownloadWaiters[uri] = waitList;
// Kick off the download.
asset.Accept(new DownloadVisitor(this));
}
}
}
IEnumerator DeferredProcess(VoosAsset asset, ProcessAsset process)
{
yield return(null);
process(cacheByUri[asset.GetUri()]);
}
public void Get(string uri, ProcessAsset process)
{
Debug.Assert(uri != null);
Debug.Assert(uri.Length > 0);
Get(VoosAssetUtil.AssetFromUri(uri), process);
}
