/// <summary>
/// 内存段缓存存根，提供了相关的基本操作
/// </summary>
/// <param name="indexer">缓存索引器</param>
/// <param name="expireTime">过期时间</param>
/// <exception cref="ArgumentNullException">参数不能为空</exception>
public SegmentCacheStub(ICacheIndexer indexer, DateTime expireTime)
{
if (indexer == null)
{
throw new ArgumentNullException(nameof(indexer));
}
_indexer = indexer;
_lease = new CacheLease(expireTime);
_innerItem = new SegmentCacheItem(indexer);
Fixed = true;
}
/// <summary>
/// 缓存存根，提供了相关的基本操作
/// </summary>
/// <param name="expireTime">过期时间</param>
/// <typeparam name="T">缓存类型</typeparam>
public CacheStub(DateTime expireTime)
{
Lease = new CacheLease(expireTime);
}
/// <summary>
/// 非托管缓存存根，提供了相关的基本操作
/// </summary>
/// <param name="maxSize">最大容量</param>
/// <param name="expireTime">过期时间</param>
public UnmanagedCacheStub(int maxSize, DateTime expireTime)
{
Fixed = false;
_innerCache = new UnmanagedCacheItem(maxSize);
_lease = new CacheLease(expireTime);
}
/// <summary>
/// 非托管缓存存根，提供了相关的基本操作
/// </summary>
/// <param name="ptr">内存句柄</param>
/// <param name="maxSize">最大容量</param>
/// <param name="useageSize">已使用大小</param>
/// <param name="expireTime">过期时间</param>
public UnmanagedCacheStub(IntPtr ptr, int maxSize, int useageSize, DateTime expireTime)
{
Fixed = false;
_innerCache = new UnmanagedCacheItem(ptr, maxSize, useageSize);
_lease = new CacheLease(expireTime);
}
/// <summary>
/// 弱缓存存根，提供了相关的基本操作
/// </summary>
/// <param name="expireTime">过期时间</param>
/// <typeparam name="T">缓存类型</typeparam>
public WeakCacheStub(DateTime expireTime)
{
_lease = new CacheLease(expireTime);
}
