296 lines
11 KiB
C#
296 lines
11 KiB
C#
|
using System;
|
||
|
|
using System.Collections;
|
||
|
|
using System.Collections.Generic;
|
||
|
|
using System.Diagnostics;
|
||
|
|
using System.Runtime.InteropServices;
|
||
|
|
using Unity.Collections.LowLevel.Unsafe;
|
||
|
|
using Unity.Jobs;
|
||
|
|
using UnityEngine.Internal;
|
||
|
|
using Unity.Burst;
|
||
|
|
|
||
|
|
namespace Unity.Collections
|
||
|
|
{
|
||
|
|
/// <summary>
|
||
|
|
/// An unordered, expandable set of unique values.
|
||
|
|
/// </summary>
|
||
|
|
/// <typeparam name="T">The type of the values.</typeparam>
|
||
|
|
[StructLayout(LayoutKind.Sequential)]
|
||
|
|
[DebuggerTypeProxy(typeof(NativeHashSetDebuggerTypeProxy<>))]
|
||
|
|
[BurstCompatible(GenericTypeArguments = new [] { typeof(int) })]
|
||
|
|
public unsafe struct NativeParallelHashSet<T>
|
||
|
|
: INativeDisposable
|
||
|
|
, IEnumerable<T> // Used by collection initializers.
|
||
|
|
where T : unmanaged, IEquatable<T>
|
||
|
|
{
|
||
|
|
#if ENABLE_UNITY_COLLECTIONS_CHECKS
|
||
|
|
internal static readonly SharedStatic<int> s_staticSafetyId = SharedStatic<int>.GetOrCreate<NativeParallelHashSet<T>>();
|
||
|
|
#endif
|
||
|
|
|
||
|
|
internal NativeParallelHashMap<T, bool> m_Data;
|
||
|
|
|
||
|
|
/// <summary>
|
||
|
|
/// Initializes and returns an instance of NativeHashSet.
|
||
|
|
/// </summary>
|
||
|
|
/// <param name="capacity">The number of values that should fit in the initial allocation.</param>
|
||
|
|
/// <param name="allocator">The allocator to use.</param>
|
||
|
|
public NativeParallelHashSet(int capacity, AllocatorManager.AllocatorHandle allocator)
|
||
|
|
{
|
||
|
|
m_Data = new NativeParallelHashMap<T, bool>(capacity, allocator);
|
||
|
|
#if ENABLE_UNITY_COLLECTIONS_CHECKS
|
||
|
|
CollectionHelper.SetStaticSafetyId<NativeParallelHashSet<T>>(ref m_Data.m_Safety, ref s_staticSafetyId.Data);
|
||
|
|
#endif
|
||
|
|
}
|
||
|
|
|
||
|
|
/// <summary>
|
||
|
|
/// Whether this set is empty.
|
||
|
|
/// </summary>
|
||
|
|
/// <value>True if this set is empty or if the set has not been constructed.</value>
|
||
|
|
public bool IsEmpty => m_Data.IsEmpty;
|
||
|
|
|
||
|
|
/// <summary>
|
||
|
|
/// Returns the current number of values in this set.
|
||
|
|
/// </summary>
|
||
|
|
/// <returns>The current number of values in this set.</returns>
|
||
|
|
public int Count() => m_Data.Count();
|
||
|
|
|
||
|
|
/// <summary>
|
||
|
|
/// The number of values that fit in the current allocation.
|
||
|
|
/// </summary>
|
||
|
|
/// <value>The number of values that fit in the current allocation.</value>
|
||
|
|
/// <param name="value">A new capacity. Must be larger than current capacity.</param>
|
||
|
|
/// <exception cref="Exception">Thrown if `value` is less than the current capacity.</exception>
|
||
|
|
public int Capacity { get => m_Data.Capacity; set => m_Data.Capacity = value; }
|
||
|
|
|
||
|
|
/// <summary>
|
||
|
|
/// Whether this set has been allocated (and not yet deallocated).
|
||
|
|
/// </summary>
|
||
|
|
/// <value>True if this set has been allocated (and not yet deallocated).</value>
|
||
|
|
public bool IsCreated => m_Data.IsCreated;
|
||
|
|
|
||
|
|
/// <summary>
|
||
|
|
/// Releases all resources (memory and safety handles).
|
||
|
|
/// </summary>
|
||
|
|
public void Dispose() => m_Data.Dispose();
|
||
|
|
|
||
|
|
/// <summary>
|
||
|
|
/// Creates and schedules a job that will dispose this set.
|
||
|
|
/// </summary>
|
||
|
|
/// <param name="inputDeps">A job handle. The newly scheduled job will depend upon this handle.</param>
|
||
|
|
/// <returns>The handle of a new job that will dispose this set.</returns>
|
||
|
|
[NotBurstCompatible /* This is not burst compatible because of IJob's use of a static IntPtr. Should switch to IJobBurstSchedulable in the future */]
|
||
|
|
public JobHandle Dispose(JobHandle inputDeps) => m_Data.Dispose(inputDeps);
|
||
|
|
|
||
|
|
/// <summary>
|
||
|
|
/// Removes all values.
|
||
|
|
/// </summary>
|
||
|
|
/// <remarks>Does not change the capacity.</remarks>
|
||
|
|
public void Clear() => m_Data.Clear();
|
||
|
|
|
||
|
|
/// <summary>
|
||
|
|
/// Adds a new value (unless it is already present).
|
||
|
|
/// </summary>
|
||
|
|
/// <param name="item">The value to add.</param>
|
||
|
|
/// <returns>True if the value was not already present.</returns>
|
||
|
|
public bool Add(T item) => m_Data.TryAdd(item, false);
|
||
|
|
|
||
|
|
/// <summary>
|
||
|
|
/// Removes a particular value.
|
||
|
|
/// </summary>
|
||
|
|
/// <param name="item">The value to remove.</param>
|
||
|
|
/// <returns>True if the value was present.</returns>
|
||
|
|
public bool Remove(T item) => m_Data.Remove(item);
|
||
|
|
|
||
|
|
/// <summary>
|
||
|
|
/// Returns true if a particular value is present.
|
||
|
|
/// </summary>
|
||
|
|
/// <param name="item">The value to check for.</param>
|
||
|
|
/// <returns>True if the value was present.</returns>
|
||
|
|
public bool Contains(T item) => m_Data.ContainsKey(item);
|
||
|
|
|
||
|
|
/// <summary>
|
||
|
|
/// Returns an array with a copy of this set's values (in no particular order).
|
||
|
|
/// </summary>
|
||
|
|
/// <param name="allocator">The allocator to use.</param>
|
||
|
|
/// <returns>An array with a copy of the set's values.</returns>
|
||
|
|
public NativeArray<T> ToNativeArray(AllocatorManager.AllocatorHandle allocator) => m_Data.GetKeyArray(allocator);
|
||
|
|
|
||
|
|
/// <summary>
|
||
|
|
/// Returns a parallel writer.
|
||
|
|
/// </summary>
|
||
|
|
/// <returns>A parallel writer.</returns>
|
||
|
|
public ParallelWriter AsParallelWriter()
|
||
|
|
{
|
||
|
|
ParallelWriter writer;
|
||
|
|
writer.m_Data = m_Data.AsParallelWriter();
|
||
|
|
#if ENABLE_UNITY_COLLECTIONS_CHECKS
|
||
|
|
CollectionHelper.SetStaticSafetyId<ParallelWriter>(ref writer.m_Data.m_Safety, ref ParallelWriter.s_staticSafetyId.Data);
|
||
|
|
#endif
|
||
|
|
return writer;
|
||
|
|
}
|
||
|
|
|
||
|
|
/// <summary>
|
||
|
|
/// A parallel writer for a NativeHashSet.
|
||
|
|
/// </summary>
|
||
|
|
/// <remarks>
|
||
|
|
/// Use <see cref="AsParallelWriter"/> to create a parallel writer for a set.
|
||
|
|
/// </remarks>
|
||
|
|
[NativeContainerIsAtomicWriteOnly]
|
||
|
|
[BurstCompatible(GenericTypeArguments = new [] { typeof(int) })]
|
||
|
|
public struct ParallelWriter
|
||
|
|
{
|
||
|
|
#if ENABLE_UNITY_COLLECTIONS_CHECKS
|
||
|
|
internal static readonly SharedStatic<int> s_staticSafetyId = SharedStatic<int>.GetOrCreate<ParallelWriter>();
|
||
|
|
#endif
|
||
|
|
internal NativeParallelHashMap<T, bool>.ParallelWriter m_Data;
|
||
|
|
|
||
|
|
/// <summary>
|
||
|
|
/// The number of values that fit in the current allocation.
|
||
|
|
/// </summary>
|
||
|
|
/// <value>The number of values that fit in the current allocation.</value>
|
||
|
|
public int Capacity => m_Data.Capacity;
|
||
|
|
|
||
|
|
/// <summary>
|
||
|
|
/// Adds a new value (unless it is already present).
|
||
|
|
/// </summary>
|
||
|
|
/// <param name="item">The value to add.</param>
|
||
|
|
/// <returns>True if the value is not already present.</returns>
|
||
|
|
public bool Add(T item) => m_Data.TryAdd(item, false);
|
||
|
|
}
|
||
|
|
|
||
|
|
/// <summary>
|
||
|
|
/// Returns an enumerator over the values of this set.
|
||
|
|
/// </summary>
|
||
|
|
/// <returns>An enumerator over the values of this set.</returns>
|
||
|
|
public Enumerator GetEnumerator()
|
||
|
|
{
|
||
|
|
#if ENABLE_UNITY_COLLECTIONS_CHECKS
|
||
|
|
AtomicSafetyHandle.CheckGetSecondaryDataPointerAndThrow(m_Data.m_Safety);
|
||
|
|
var ash = m_Data.m_Safety;
|
||
|
|
AtomicSafetyHandle.UseSecondaryVersion(ref ash);
|
||
|
|
#endif
|
||
|
|
return new Enumerator
|
||
|
|
{
|
||
|
|
#if ENABLE_UNITY_COLLECTIONS_CHECKS
|
||
|
|
m_Safety = ash,
|
||
|
|
#endif
|
||
|
|
m_Enumerator = new UnsafeParallelHashMapDataEnumerator(m_Data.m_HashMapData.m_Buffer),
|
||
|
|
};
|
||
|
|
}
|
||
|
|
|
||
|
|
/// <summary>
|
||
|
|
/// This method is not implemented. Use <see cref="GetEnumerator"/> instead.
|
||
|
|
/// </summary>
|
||
|
|
/// <returns>Throws NotImplementedException.</returns>
|
||
|
|
/// <exception cref="NotImplementedException">Method is not implemented.</exception>
|
||
|
|
IEnumerator<T> IEnumerable<T>.GetEnumerator()
|
||
|
|
{
|
||
|
|
throw new NotImplementedException();
|
||
|
|
}
|
||
|
|
|
||
|
|
/// <summary>
|
||
|
|
/// This method is not implemented. Use <see cref="GetEnumerator"/> instead.
|
||
|
|
/// </summary>
|
||
|
|
/// <returns>Throws NotImplementedException.</returns>
|
||
|
|
/// <exception cref="NotImplementedException">Method is not implemented.</exception>
|
||
|
|
IEnumerator IEnumerable.GetEnumerator()
|
||
|
|
{
|
||
|
|
throw new NotImplementedException();
|
||
|
|
}
|
||
|
|
|
||
|
|
/// <summary>
|
||
|
|
/// An enumerator over the values of a set.
|
||
|
|
/// </summary>
|
||
|
|
/// <remarks>
|
||
|
|
/// In an enumerator's initial state, <see cref="Current"/> is invalid.
|
||
|
|
/// The first <see cref="MoveNext"/> call advances the enumerator to the first value.
|
||
|
|
/// </remarks>
|
||
|
|
[NativeContainer]
|
||
|
|
[NativeContainerIsReadOnly]
|
||
|
|
public struct Enumerator : IEnumerator<T>
|
||
|
|
{
|
||
|
|
#if ENABLE_UNITY_COLLECTIONS_CHECKS
|
||
|
|
internal AtomicSafetyHandle m_Safety;
|
||
|
|
#endif
|
||
|
|
internal UnsafeParallelHashMapDataEnumerator m_Enumerator;
|
||
|
|
|
||
|
|
/// <summary>
|
||
|
|
/// Does nothing.
|
||
|
|
/// </summary>
|
||
|
|
public void Dispose() { }
|
||
|
|
|
||
|
|
/// <summary>
|
||
|
|
/// Advances the enumerator to the next value.
|
||
|
|
/// </summary>
|
||
|
|
/// <returns>True if `Current` is valid to read after the call.</returns>
|
||
|
|
public bool MoveNext()
|
||
|
|
{
|
||
|
|
#if ENABLE_UNITY_COLLECTIONS_CHECKS
|
||
|
|
AtomicSafetyHandle.CheckReadAndThrow(m_Safety);
|
||
|
|
#endif
|
||
|
|
return m_Enumerator.MoveNext();
|
||
|
|
}
|
||
|
|
|
||
|
|
/// <summary>
|
||
|
|
/// Resets the enumerator to its initial state.
|
||
|
|
/// </summary>
|
||
|
|
public void Reset()
|
||
|
|
{
|
||
|
|
#if ENABLE_UNITY_COLLECTIONS_CHECKS
|
||
|
|
AtomicSafetyHandle.CheckReadAndThrow(m_Safety);
|
||
|
|
#endif
|
||
|
|
m_Enumerator.Reset();
|
||
|
|
}
|
||
|
|
|
||
|
|
/// <summary>
|
||
|
|
/// The current value.
|
||
|
|
/// </summary>
|
||
|
|
/// <value>The current value.</value>
|
||
|
|
public T Current
|
||
|
|
{
|
||
|
|
get
|
||
|
|
{
|
||
|
|
#if ENABLE_UNITY_COLLECTIONS_CHECKS
|
||
|
|
AtomicSafetyHandle.CheckReadAndThrow(m_Safety);
|
||
|
|
#endif
|
||
|
|
return m_Enumerator.GetCurrentKey<T>();
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/// <summary>
|
||
|
|
/// Gets the element at the current position of the enumerator in the container.
|
||
|
|
/// </summary>
|
||
|
|
object IEnumerator.Current => Current;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
sealed internal class NativeHashSetDebuggerTypeProxy<T>
|
||
|
|
where T : unmanaged, IEquatable<T>
|
||
|
|
{
|
||
|
|
#if !NET_DOTS
|
||
|
|
NativeParallelHashSet<T> Data;
|
||
|
|
|
||
|
|
public NativeHashSetDebuggerTypeProxy(NativeParallelHashSet<T> data)
|
||
|
|
{
|
||
|
|
Data = data;
|
||
|
|
}
|
||
|
|
|
||
|
|
public List<T> Items
|
||
|
|
{
|
||
|
|
get
|
||
|
|
{
|
||
|
|
var result = new List<T>();
|
||
|
|
using (var keys = Data.ToNativeArray(Allocator.Temp))
|
||
|
|
{
|
||
|
|
for (var k = 0; k < keys.Length; ++k)
|
||
|
|
{
|
||
|
|
result.Add(keys[k]);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
return result;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
#endif
|
||
|
|
}
|
||
|
|
}
|