wehub-resource-sync
78 lines
2.1 KiB
C#
78 lines
2.1 KiB
C#
using Mediapipe.Core;
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using Mediapipe.PInvoke;
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namespace Mediapipe.Framework.Packet;
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public class PacketMap : MpResourceHandle
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{
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public PacketMap()
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{
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UnsafeNativeMethods.mp_PacketMap__(out IntPtr ptr).Assert();
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Ptr = ptr;
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}
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// TODO: make this constructor internal
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public PacketMap(nint ptr, bool isOwner) : base(ptr, isOwner)
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{
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}
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public int Size => SafeNativeMethods.mp_PacketMap__size(MpPtr);
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protected override void DeleteMpPtr()
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{
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UnsafeNativeMethods.mp_PacketMap__delete(Ptr);
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}
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/// <remarks>
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/// This method cannot verify that the packet type corresponding to the <paramref name="key" /> is indeed a
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/// <typeparamref name="T" />,
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/// so you must make sure by youreself that it is.
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/// </remarks>
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public Packet<T> At<T>(string key)
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{
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UnsafeNativeMethods.mp_PacketMap__find__PKc(MpPtr, key, out IntPtr packetPtr).Assert();
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if (packetPtr == nint.Zero) return default!; // null
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return new Packet<T>(packetPtr, true);
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}
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/// <remarks>
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/// This method cannot verify that the packet type corresponding to the <paramref name="key" /> is indeed a
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/// <typeparamref name="T" />,
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/// so you must make sure by youreself that it is.
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/// </remarks>
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public bool TryGet<T>(string key, out Packet<T> packet)
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{
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UnsafeNativeMethods.mp_PacketMap__find__PKc(MpPtr, key, out IntPtr packetPtr).Assert();
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if (packetPtr == nint.Zero)
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{
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packet = default!; // null
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return false;
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}
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packet = new Packet<T>(packetPtr, true);
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return true;
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}
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public void Emplace<T>(string key, Packet<T> packet)
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{
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UnsafeNativeMethods.mp_PacketMap__emplace__PKc_Rp(MpPtr, key, packet.MpPtr).Assert();
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packet.Dispose(); // respect move semantics
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GC.KeepAlive(this);
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}
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public int Erase(string key)
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{
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UnsafeNativeMethods.mp_PacketMap__erase__PKc(MpPtr, key, out int count).Assert();
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GC.KeepAlive(this);
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return count;
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}
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public void Clear()
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{
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SafeNativeMethods.mp_PacketMap__clear(MpPtr);
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}
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} |