mirror of
https://github.com/GreemDev/Ryujinx
synced 2024-12-12 19:19:57 +01:00
247 lines
6.8 KiB
C#
247 lines
6.8 KiB
C#
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using Ryujinx.Horizon.Common;
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using System;
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using System.Collections.Generic;
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namespace Ryujinx.Horizon.Sdk.Sf.Cmif
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{
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class ServerDomainManager
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{
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private class EntryManager
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{
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public class Entry
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{
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public int Id { get; }
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public Domain Owner { get; set; }
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public ServiceObjectHolder Obj { get; set; }
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public LinkedListNode<Entry> Node { get; set; }
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public Entry(int id)
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{
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Id = id;
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}
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}
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private readonly LinkedList<Entry> _freeList;
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private readonly Entry[] _entries;
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public EntryManager(int count)
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{
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_freeList = new LinkedList<Entry>();
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_entries = new Entry[count];
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for (int i = 0; i < count; i++)
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{
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_freeList.AddLast(_entries[i] = new Entry(i + 1));
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}
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}
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public Entry AllocateEntry()
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{
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lock (_freeList)
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{
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if (_freeList.Count == 0)
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{
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return null;
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}
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var entry = _freeList.First.Value;
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_freeList.RemoveFirst();
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return entry;
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}
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}
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public void FreeEntry(Entry entry)
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{
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lock (_freeList)
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{
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DebugUtil.Assert(entry.Owner == null);
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DebugUtil.Assert(entry.Obj == null);
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_freeList.AddFirst(entry);
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}
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}
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public Entry GetEntry(int id)
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{
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if (id == 0)
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{
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return null;
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}
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int index = id - 1;
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if ((uint)index >= (uint)_entries.Length)
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{
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return null;
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}
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return _entries[index];
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}
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}
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private class Domain : DomainServiceObject, IDisposable
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{
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private readonly ServerDomainManager _manager;
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private readonly LinkedList<EntryManager.Entry> _entries;
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public Domain(ServerDomainManager manager)
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{
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_manager = manager;
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_entries = new LinkedList<EntryManager.Entry>();
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}
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public override ServiceObjectHolder GetObject(int id)
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{
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var entry = _manager._entryManager.GetEntry(id);
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if (entry == null)
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{
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return null;
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}
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lock (_manager._entryOwnerLock)
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{
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if (entry.Owner != this)
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{
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return null;
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}
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}
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return entry.Obj.Clone();
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}
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public override ServerDomainBase GetServerDomain()
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{
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return this;
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}
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public override void RegisterObject(int id, ServiceObjectHolder obj)
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{
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var entry = _manager._entryManager.GetEntry(id);
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DebugUtil.Assert(entry != null);
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lock (_manager._entryOwnerLock)
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{
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DebugUtil.Assert(entry.Owner == null);
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entry.Owner = this;
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entry.Node = _entries.AddLast(entry);
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}
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entry.Obj = obj;
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}
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public override Result ReserveIds(Span<int> outIds)
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{
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for (int i = 0; i < outIds.Length; i++)
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{
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var entry = _manager._entryManager.AllocateEntry();
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if (entry == null)
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{
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return SfResult.OutOfDomainEntries;
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}
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DebugUtil.Assert(entry.Owner == null);
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outIds[i] = entry.Id;
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}
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return Result.Success;
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}
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public override ServiceObjectHolder UnregisterObject(int id)
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{
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var entry = _manager._entryManager.GetEntry(id);
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if (entry == null)
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{
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return null;
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}
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ServiceObjectHolder obj;
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lock (_manager._entryOwnerLock)
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{
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if (entry.Owner != this)
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{
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return null;
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}
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entry.Owner = null;
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obj = entry.Obj;
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entry.Obj = null;
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_entries.Remove(entry.Node);
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entry.Node = null;
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}
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_manager._entryManager.FreeEntry(entry);
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return obj;
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}
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public override void UnreserveIds(ReadOnlySpan<int> ids)
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{
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for (int i = 0; i < ids.Length; i++)
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{
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var entry = _manager._entryManager.GetEntry(ids[i]);
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DebugUtil.Assert(entry != null);
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DebugUtil.Assert(entry.Owner == null);
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_manager._entryManager.FreeEntry(entry);
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}
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}
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public void Dispose()
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{
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foreach (var entry in _entries)
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{
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if (entry.Obj.ServiceObject is IDisposable disposableObj)
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{
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disposableObj.Dispose();
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}
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}
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_manager.FreeDomain(this);
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}
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}
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private readonly EntryManager _entryManager;
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private readonly object _entryOwnerLock;
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private readonly HashSet<Domain> _domains;
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private int _maxDomains;
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public ServerDomainManager(int entryCount, int maxDomains)
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{
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_entryManager = new EntryManager(entryCount);
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_entryOwnerLock = new object();
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_domains = new HashSet<Domain>();
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_maxDomains = maxDomains;
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}
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public DomainServiceObject AllocateDomainServiceObject()
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{
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lock (_domains)
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{
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if (_domains.Count == _maxDomains)
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{
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return null;
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}
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var domain = new Domain(this);
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_domains.Add(domain);
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return domain;
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}
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}
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public static void DestroyDomainServiceObject(DomainServiceObject obj)
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{
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((Domain)obj).Dispose();
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}
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private void FreeDomain(Domain domain)
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{
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lock (_domains)
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{
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_domains.Remove(domain);
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}
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}
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}
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}
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