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Free GCHandle

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This commit is contained in:
Kazuki Sakamoto
2017-02-10 14:51:38 -08:00
parent 376ab71bb0
commit 1ceffea28e
3 changed files with 41 additions and 31 deletions
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33
csharp/Facebook.Yoga/Native.cs
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@@ -22,6 +22,8 @@ namespace Facebook.Yoga
internal class YGNodeHandle : SafeHandle
{
private GCHandle _managed;
private YGNodeHandle() : base(IntPtr.Zero, true)
{
}
@@ -36,10 +38,39 @@ namespace Facebook.Yoga
protected override bool ReleaseHandle()
{
#if (UNITY_IOS && !UNITY_EDITOR) || __IOS__
if (_managed.IsAllocated)
{
_managed.Free();
}
#endif
Native.YGNodeFree(this.handle);
GC.KeepAlive(this);
return true;
}
#if (UNITY_IOS && !UNITY_EDITOR) || __IOS__
public void SetContext(YogaNode node)
{
if (!_managed.IsAllocated)
{
_managed = GCHandle.Alloc(node, GCHandleType.Weak);
Native.YGNodeSetContext(this.handle, GCHandle.ToIntPtr(_managed));
}
}
public static YogaNode GetManaged(IntPtr ygNodePtr)
{
var node =
GCHandle.FromIntPtr(Native.YGNodeGetContext(ygNodePtr)).Target as YogaNode;
if (node == null)
{
throw new InvalidOperationException("YogaNode is already deallocated");
}
return node;
}
#endif
}
[DllImport(DllName, ExactSpelling = true, CallingConvention = CallingConvention.Cdecl)]
@@ -63,7 +94,7 @@ namespace Facebook.Yoga
public static extern IntPtr YGNodeGetContext(IntPtr node);
[DllImport(DllName, ExactSpelling = true, CallingConvention = CallingConvention.Cdecl)]
public static extern void YGNodeSetContext(YGNodeHandle node, IntPtr managed);
public static extern void YGNodeSetContext(IntPtr node, IntPtr managed);
#endif
[DllImport(DllName, ExactSpelling = true, CallingConvention = CallingConvention.Cdecl)]