diff options
| author | TSR Berry <20988865+TSRBerry@users.noreply.github.com> | 2023-04-08 01:22:00 +0200 |
|---|---|---|
| committer | Mary <thog@protonmail.com> | 2023-04-27 23:51:14 +0200 |
| commit | cee712105850ac3385cd0091a923438167433f9f (patch) | |
| tree | 4a5274b21d8b7f938c0d0ce18736d3f2993b11b1 /src/Ryujinx.Common/Pools/ObjectPool.cs | |
| parent | cd124bda587ef09668a971fa1cac1c3f0cfc9f21 (diff) | |
Move solution and projects to src
Diffstat (limited to 'src/Ryujinx.Common/Pools/ObjectPool.cs')
| -rw-r--r-- | src/Ryujinx.Common/Pools/ObjectPool.cs | 75 |
1 files changed, 75 insertions, 0 deletions
diff --git a/src/Ryujinx.Common/Pools/ObjectPool.cs b/src/Ryujinx.Common/Pools/ObjectPool.cs new file mode 100644 index 00000000..e0bf5df6 --- /dev/null +++ b/src/Ryujinx.Common/Pools/ObjectPool.cs @@ -0,0 +1,75 @@ +using System; +using System.Threading; + +namespace Ryujinx.Common +{ + public class ObjectPool<T> + where T : class + { + private T _firstItem; + private readonly T[] _items; + + private readonly Func<T> _factory; + + public ObjectPool(Func<T> factory, int size) + { + _items = new T[size - 1]; + _factory = factory; + } + + public T Allocate() + { + T instance = _firstItem; + + if (instance == null || instance != Interlocked.CompareExchange(ref _firstItem, null, instance)) + { + instance = AllocateInternal(); + } + + return instance; + } + + private T AllocateInternal() + { + T[] items = _items; + + for (int i = 0; i < items.Length; i++) + { + T instance = items[i]; + + if (instance != null && instance == Interlocked.CompareExchange(ref items[i], null, instance)) + { + return instance; + } + } + + return _factory(); + } + + public void Release(T obj) + { + if (_firstItem == null) + { + _firstItem = obj; + } + else + { + ReleaseInternal(obj); + } + } + + private void ReleaseInternal(T obj) + { + T[] items = _items; + + for (int i = 0; i < items.Length; i++) + { + if (items[i] == null) + { + items[i] = obj; + break; + } + } + } + } +} |