public Task AppendEntry(string name, System.IO.Stream data, Int64 offset, Int64 length)
{
bool spaceExists = false;
CacheEntry e = null;
lock (entries)
{
bool exists = entries.data.TryGetValue(name, out e);
if (exists)
{
lock (e)
{
if (e.InMemory && entries.cachedDataSize + length <= cacheHighWatermark)
{
entries.cachedDataSize += length;
spaceExists = true;
}
}
}
}
if (e != null) // the cache entry existed
{
lock (e)
{
if (spaceExists) // there's enough space to cache it
{
return(e.AppendInMemory(data, offset, length, freeList));
}
else
{
return(e.AppendSpilling(data, offset));
}
}
}
else
{
throw new InvalidOperationException("Can't append to unknown IDF " + name);
}
}
