public Task <(bool, T)> TryGet([NotNull] THash key)
{
return(_cache.TryGetValue(IWeakCacheProvider <T, THash> .HashKey(key), out var weakRef) &&
weakRef.Target is { } target
? Task.FromResult((true, target))
: Task.FromResult((false, (T)null)));
}
public void Detach(THash associateWith)
{
using var sem = new SemaphoreSlim(1);
var path = Path.Combine(initDirectory, IWeakCacheProvider <T, THash> .HashKey(associateWith) + ".");
if (File.Exists(path))
{
fileMapping.TryRemove(associateWith, out _);
File.Delete(path);
}
}
public void Attach(ref T key, THash associateWith)
{
if (associateWith == null || key == null)
{
return;
}
var weakRef = new WeakEntry <T>(key);
key = null;
_cache.TryAdd(IWeakCacheProvider <T, THash> .HashKey(associateWith), weakRef);
}
public void Attach(ref T key, THash associateWith)
{
if (associateWith == null || key == null)
{
return;
}
var path = Path.Combine(initDirectory, IWeakCacheProvider <T, THash> .HashKey(associateWith) + ".tmp");
if (!File.Exists(path))
{
var s = cachingPolicy(key);
key = null;
Task.Run(() =>
{
fileMapping.TryAdd(associateWith, path);
WriteFile(path, s);
});
}
}
public void Detach(THash associateWith)
{
_cache.TryRemove(IWeakCacheProvider <T, THash> .HashKey(associateWith), out _);
}
