/// <summary>
/// Adds the provided resource reference to the cache resource under the key,
/// and updates the access time.
/// </summary>
/// <remarks>
/// Adds the provided resource reference to the cache resource under the key,
/// and updates the access time. If it returns a non-null value, the caller may
/// safely assume that the resource will not be removed at least until the app
/// in this resource reference has terminated.
/// </remarks>
/// <returns>the filename of the resource, or null if the resource is not found</returns>
public override string AddResourceReference(string key, SharedCacheResourceReference
@ref)
{
string interned = Intern(key);
lock (interned)
{
SharedCacheResource resource = cachedResources[interned];
if (resource == null)
{
// it's not mapped
return(null);
}
resource.AddReference(@ref);
resource.UpdateAccessTime();
return(resource.GetFileName());
}
}
/// <summary>Removes the provided collection of resource references from the resource.
/// </summary>
/// <remarks>
/// Removes the provided collection of resource references from the resource.
/// If the resource does not exist, nothing will be done.
/// </remarks>
public override void RemoveResourceReferences(string key, ICollection <SharedCacheResourceReference
> refs, bool updateAccessTime)
{
string interned = Intern(key);
lock (interned)
{
SharedCacheResource resource = cachedResources[interned];
if (resource != null)
{
ICollection <SharedCacheResourceReference> resourceRefs = resource.GetResourceReferences
();
resourceRefs.RemoveAll(refs);
if (updateAccessTime)
{
resource.UpdateAccessTime();
}
}
}
}
/// <summary>Removes the provided resource reference from the resource.</summary>
/// <remarks>
/// Removes the provided resource reference from the resource. If the resource
/// does not exist, nothing will be done.
/// </remarks>
public override bool RemoveResourceReference(string key, SharedCacheResourceReference
@ref, bool updateAccessTime)
{
string interned = Intern(key);
lock (interned)
{
bool removed = false;
SharedCacheResource resource = cachedResources[interned];
if (resource != null)
{
ICollection <SharedCacheResourceReference> resourceRefs = resource.GetResourceReferences
();
removed = resourceRefs.Remove(@ref);
if (updateAccessTime)
{
resource.UpdateAccessTime();
}
}
return(removed);
}
}