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using System;
using System.Collections.Generic;
using System.Threading;
namespace ARMeilleure.Translation
{
internal class TranslatorCache<T>
{
private readonly IntervalTree<ulong, T> _tree;
private readonly ReaderWriterLockSlim _treeLock;
public int Count => _tree.Count;
public TranslatorCache()
{
_tree = new IntervalTree<ulong, T>();
_treeLock = new ReaderWriterLockSlim();
}
public bool TryAdd(ulong address, ulong size, T value)
{
return AddOrUpdate(address, size, value, null);
}
public bool AddOrUpdate(ulong address, ulong size, T value, Func<ulong, T, T> updateFactoryCallback)
{
_treeLock.EnterWriteLock();
bool result = _tree.AddOrUpdate(address, address + size, value, updateFactoryCallback);
_treeLock.ExitWriteLock();
return result;
}
public T GetOrAdd(ulong address, ulong size, T value)
{
_treeLock.EnterWriteLock();
value = _tree.GetOrAdd(address, address + size, value);
_treeLock.ExitWriteLock();
return value;
}
public bool Remove(ulong address)
{
_treeLock.EnterWriteLock();
bool removed = _tree.Remove(address) != 0;
_treeLock.ExitWriteLock();
return removed;
}
public void Clear()
{
_treeLock.EnterWriteLock();
_tree.Clear();
_treeLock.ExitWriteLock();
}
public bool ContainsKey(ulong address)
{
_treeLock.EnterReadLock();
bool result = _tree.ContainsKey(address);
_treeLock.ExitReadLock();
return result;
}
public bool TryGetValue(ulong address, out T value)
{
_treeLock.EnterReadLock();
bool result = _tree.TryGet(address, out value);
_treeLock.ExitReadLock();
return result;
}
public int GetOverlaps(ulong address, ulong size, ref ulong[] overlaps)
{
_treeLock.EnterReadLock();
int count = _tree.Get(address, address + size, ref overlaps);
_treeLock.ExitReadLock();
return count;
}
public List<T> AsList()
{
_treeLock.EnterReadLock();
List<T> list = _tree.AsList();
_treeLock.ExitReadLock();
return list;
}
}
}
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