Firstborn/Library/PackageCache/com.unity.collections@1.4.0/Unity.Collections.Tests/CustomAllocatorTests.cs

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2023-03-28 13:24:16 -04:00
using System;
using System.Runtime.InteropServices;
using AOT;
using NUnit.Framework;
using Unity.Burst;
using Unity.Collections;
using Unity.Collections.LowLevel.Unsafe;
using Unity.Jobs;
using Unity.Mathematics;
using Unity.Jobs.LowLevel.Unsafe;
using Unity.Collections.Tests;
internal class CustomAllocatorTests : CollectionsTestCommonBase
{
#if !NET_DOTS
[TestCase(1337, 1337)]
[TestCase(0xFFFF, 0x0000)]
[TestCase(0x0000, 0xFFFF)]
[TestCase(0xFFFF, 0xFFFF)]
[TestCase(0x0000, 0x0000)]
public void AllocatorHandleToAllocatorRoundTripWorks(int i, int v)
{
var Index = (ushort)i;
var Version = (ushort)v;
AllocatorManager.AllocatorHandle srcHandle = new AllocatorManager.AllocatorHandle{ Index = Index, Version = Version };
Allocator srcAllocator = srcHandle.ToAllocator;
AllocatorManager.AllocatorHandle destHandle = srcAllocator;
Assert.AreEqual(srcHandle.Index, destHandle.Index);
Assert.AreEqual(srcHandle.Version, destHandle.Version);
Allocator destAllocator = destHandle.ToAllocator;
Assert.AreEqual(srcAllocator, destAllocator);
}
#endif
[Test]
public void AllocatorVersioningWorks()
{
AllocatorManager.Initialize();
var origin = AllocatorManager.Persistent;
var storage = origin.AllocateBlock(default(byte), 100000); // allocate a block of bytes from Malloc.Persistent
for(var i = 1; i <= 3; ++i)
{
var allocatorHelper = new AllocatorHelper<AllocatorManager.StackAllocator>(AllocatorManager.Persistent);
ref var allocator = ref allocatorHelper.Allocator;
allocator.Initialize(storage);
var oldIndex = allocator.Handle.Index;
var oldVersion = allocator.Handle.Version;
allocator.Dispose();
var newVersion = AllocatorManager.SharedStatics.Version.Ref.Data.ElementAt(oldIndex);
Assert.AreEqual(oldVersion + 1, newVersion);
allocatorHelper.Dispose();
}
storage.Dispose();
AllocatorManager.Shutdown();
}
#if !UNITY_DOTSRUNTIME
[Test]
public void ReleasingChildHandlesWorks()
{
AllocatorManager.Initialize();
var origin = AllocatorManager.Persistent;
var storage = origin.AllocateBlock(default(byte), 100000); // allocate a block of bytes from Malloc.Persistent
var allocatorHelper = new AllocatorHelper<AllocatorManager.StackAllocator>(AllocatorManager.Persistent);
ref var allocator = ref allocatorHelper.Allocator;
allocator.Initialize(storage);
var list = NativeList<int>.New(10, ref allocator);
list.Add(0); // put something in the list, so it'll have a size for later
allocator.Dispose(); // ok to tear down the storage that the stack allocator used, too.
Assert.Throws<ObjectDisposedException>(
() => {
list[0] = 0; // we haven't disposed this list, but it was released automatically already. so this is an error.
});
storage.Dispose();
allocatorHelper.Dispose();
AllocatorManager.Shutdown();
}
[Test]
public unsafe void ReleasingChildAllocatorsWorks()
{
AllocatorManager.Initialize();
var origin = AllocatorManager.Persistent;
var parentStorage = origin.AllocateBlock(default(byte), 100000); // allocate a block of bytes from Malloc.Persistent
var parentHelper = new AllocatorHelper<AllocatorManager.StackAllocator>(AllocatorManager.Persistent);
ref var parent = ref parentHelper.Allocator;
parent.Initialize(parentStorage); // and make a stack allocator from it
var childStorage = parent.AllocateBlock(default(byte), 10000); // allocate some space from the parent
var childHelper = new AllocatorHelper<AllocatorManager.StackAllocator>(AllocatorManager.Persistent);
childHelper.Allocator.Initialize(childStorage); // and make a stack allocator from it
parent.Dispose(); // tear down the parent allocator
Assert.Throws<ArgumentException>(() =>
{
childHelper.Allocator.Allocate(default(byte), 1000); // try to allocate from the child - it should fail.
});
parentStorage.Dispose();
parentHelper.Dispose();
childHelper.Dispose();
AllocatorManager.Shutdown();
}
#endif
[Test]
public void AllocatesAndFreesFromMono()
{
AllocatorManager.Initialize();
const int kLength = 100;
var expectedAlignment = math.max(JobsUtility.CacheLineSize, UnsafeUtility.AlignOf<int>());
for (int i = 0; i < kLength; ++i)
{
var allocator = AllocatorManager.Persistent;
var block = allocator.AllocateBlock(default(int), i);
if(i != 0)
Assert.AreNotEqual(IntPtr.Zero, block.Range.Pointer);
Assert.AreEqual(i, block.Range.Items);
Assert.AreEqual(UnsafeUtility.SizeOf<int>(), block.BytesPerItem);
Assert.AreEqual(expectedAlignment, block.Alignment);
Assert.AreEqual(AllocatorManager.Persistent.Value, block.Range.Allocator.Value);
allocator.FreeBlock(ref block);
}
AllocatorManager.Shutdown();
}
[BurstCompile(CompileSynchronously = true)]
struct AllocateJob : IJobParallelFor
{
public NativeArray<AllocatorManager.Block> m_blocks;
public void Execute(int index)
{
var allocator = AllocatorManager.Persistent;
m_blocks[index] = allocator.AllocateBlock(default(int), index);
}
}
[BurstCompile(CompileSynchronously = true)]
struct FreeJob : IJobParallelFor
{
public NativeArray<AllocatorManager.Block> m_blocks;
public void Execute(int index)
{
var temp = m_blocks[index];
temp.Free();
m_blocks[index] = temp;
}
}
[Test]
public void AllocatesAndFreesFromBurst()
{
AllocatorManager.Initialize();
const int kLength = 100;
var blocks = new NativeArray<AllocatorManager.Block>(kLength, Allocator.Persistent);
var allocateJob = new AllocateJob();
allocateJob.m_blocks = blocks;
allocateJob.Schedule(kLength, 1).Complete();
var expectedAlignment = math.max(JobsUtility.CacheLineSize, UnsafeUtility.AlignOf<int>());
for (int i = 0; i < kLength; ++i)
{
var block = allocateJob.m_blocks[i];
if(i != 0)
Assert.AreNotEqual(IntPtr.Zero, block.Range.Pointer);
Assert.AreEqual(i, block.Range.Items);
Assert.AreEqual(UnsafeUtility.SizeOf<int>(), block.BytesPerItem);
Assert.AreEqual(expectedAlignment, block.Alignment);
Assert.AreEqual(AllocatorManager.Persistent.Value, block.Range.Allocator.Value);
}
var freeJob = new FreeJob();
freeJob.m_blocks = blocks;
freeJob.Schedule(kLength, 1).Complete();
for (int i = 0; i < kLength; ++i)
{
var block = allocateJob.m_blocks[i];
Assert.AreEqual(IntPtr.Zero, block.Range.Pointer);
Assert.AreEqual(0, block.Range.Items);
Assert.AreEqual(UnsafeUtility.SizeOf<int>(), block.BytesPerItem);
Assert.AreEqual(expectedAlignment, block.Alignment);
Assert.AreEqual(AllocatorManager.Persistent.Value, block.Range.Allocator.Value);
}
blocks.Dispose();
AllocatorManager.Shutdown();
}
// This allocator wraps UnsafeUtility.Malloc, but also initializes memory to some constant value after allocating.
[BurstCompile(CompileSynchronously = true)]
struct ClearToValueAllocator : AllocatorManager.IAllocator
{
public AllocatorManager.AllocatorHandle Handle { get { return m_handle; } set { m_handle = value; } }
public Allocator ToAllocator { get { return m_handle.ToAllocator; } }
public bool IsCustomAllocator { get { return m_handle.IsCustomAllocator; } }
internal AllocatorManager.AllocatorHandle m_handle;
internal AllocatorManager.AllocatorHandle m_parent;
public byte m_clearValue;
public void Initialize<T>(byte ClearValue, ref T parent) where T : unmanaged, AllocatorManager.IAllocator
{
m_parent = parent.Handle;
m_clearValue = ClearValue;
#if ENABLE_UNITY_COLLECTIONS_CHECKS
parent.Handle.AddChildAllocator(m_handle);
#endif
}
public unsafe int Try(ref AllocatorManager.Block block)
{
var temp = block.Range.Allocator;
block.Range.Allocator = m_parent;
var error = AllocatorManager.Try(ref block);
block.Range.Allocator = temp;
if (error != 0)
return error;
if (block.Range.Pointer != IntPtr.Zero) // if we allocated or reallocated...
UnsafeUtility.MemSet((void*)block.Range.Pointer, m_clearValue, block.Bytes); // clear to a value.
return 0;
}
[BurstCompile(CompileSynchronously = true)]
[MonoPInvokeCallback(typeof(AllocatorManager.TryFunction))]
public static unsafe int Try(IntPtr state, ref AllocatorManager.Block block)
{
return ((ClearToValueAllocator*)state)->Try(ref block);
}
public AllocatorManager.TryFunction Function => Try;
public void Dispose()
{
m_handle.Dispose();
}
}
[BurstCompile(CompileSynchronously = true)]
internal struct CountingAllocator : AllocatorManager.IAllocator
{
public AllocatorManager.AllocatorHandle Handle { get { return m_handle; } set { m_handle = value; } }
public Allocator ToAllocator { get { return m_handle.ToAllocator; } }
public bool IsCustomAllocator { get { return m_handle.IsCustomAllocator; } }
public AllocatorManager.AllocatorHandle m_handle;
public int AllocationCount;
public bool WasUsed => AllocationCount > 0;
public void Initialize()
{
AllocationCount = 0;
#if ENABLE_UNITY_ALLOCATIONS_CHECKS
AllocatorManager.Persistent.Handle.AddChildAllocator(m_handle);
#endif
}
public int Try(ref AllocatorManager.Block block)
{
var temp = block.Range.Allocator;
block.Range.Allocator = AllocatorManager.Persistent;
var error = AllocatorManager.Try(ref block);
block.Range.Allocator = temp;
if (error != 0)
return error;
if (block.Range.Pointer != IntPtr.Zero) // if we allocated or reallocated...
++AllocationCount;
return 0;
}
[BurstCompile(CompileSynchronously = true)]
[MonoPInvokeCallback(typeof(AllocatorManager.TryFunction))]
public static unsafe int Try(IntPtr state, ref AllocatorManager.Block block)
{
return ((CountingAllocator*)state)->Try(ref block);
}
public AllocatorManager.TryFunction Function => Try;
public void Dispose()
{
m_handle.Dispose();
}
}
[Test]
public void UserDefinedAllocatorWorks()
{
AllocatorManager.Initialize();
var parent = AllocatorManager.Persistent;
var allocatorHelper = new AllocatorHelper<ClearToValueAllocator>(AllocatorManager.Persistent);
ref var allocator = ref allocatorHelper.Allocator;
allocator.Initialize(0, ref parent);
var expectedAlignment = math.max(JobsUtility.CacheLineSize, UnsafeUtility.AlignOf<int>());
for (byte ClearValue = 0; ClearValue < 0xF; ++ClearValue)
{
allocator.m_clearValue = ClearValue;
const int kLength = 100;
for (int i = 1; i < kLength; ++i)
{
var block = allocator.AllocateBlock(default(int), i);
Assert.AreNotEqual(IntPtr.Zero, block.Range.Pointer);
Assert.AreEqual(i, block.Range.Items);
Assert.AreEqual(UnsafeUtility.SizeOf<int>(), block.BytesPerItem);
Assert.AreEqual(expectedAlignment, block.Alignment);
allocator.FreeBlock(ref block);
}
}
allocator.Dispose();
allocatorHelper.Dispose();
AllocatorManager.Shutdown();
}
// this is testing for the case where we want+ to install a stack allocator that itself allocates from a big hunk
// of memory provided by the default Persistent allocator, and then make allocations on the stack allocator.
[Test]
public void StackAllocatorWorks()
{
AllocatorManager.Initialize();
var origin = AllocatorManager.Persistent;
var backingStorage = origin.AllocateBlock(default(byte), 100000); // allocate a block of bytes from Malloc.Persistent
var allocatorHelper = new AllocatorHelper<AllocatorManager.StackAllocator>(AllocatorManager.Persistent);
ref var allocator = ref allocatorHelper.Allocator;
allocator.Initialize(backingStorage);
var expectedAlignment = math.max(JobsUtility.CacheLineSize, UnsafeUtility.AlignOf<int>());
const int kLength = 100;
for (int i = 1; i < kLength; ++i)
{
var block = allocator.AllocateBlock(default(int), i);
Assert.AreNotEqual(IntPtr.Zero, block.Range.Pointer);
Assert.AreEqual(i, block.Range.Items);
Assert.AreEqual(UnsafeUtility.SizeOf<int>(), block.BytesPerItem);
Assert.AreEqual(expectedAlignment, block.Alignment);
allocator.FreeBlock(ref block);
}
allocator.Dispose();
backingStorage.Dispose();
allocatorHelper.Dispose();
AllocatorManager.Shutdown();
}
[Test]
public void CustomAllocatorNativeListWorksWithoutHandles()
{
AllocatorManager.Initialize();
var allocator = AllocatorManager.Persistent;
var list = NativeList<byte>.New(100, ref allocator);
list.Dispose(ref allocator);
AllocatorManager.Shutdown();
}
#if !UNITY_DOTSRUNTIME
[Test]
public void CustomAllocatorNativeListThrowsWhenAllocatorIsWrong()
{
AllocatorManager.Initialize();
var allocator0 = AllocatorManager.Persistent;
var list = NativeList<byte>.New(100, ref allocator0);
Assert.Throws<ArgumentOutOfRangeException>(() =>
{
list.Dispose(ref CommonRwdAllocatorHelper.Allocator);
});
list.Dispose(ref allocator0);
AllocatorManager.Shutdown();
}
#endif
// this is testing for the case where we want to install a custom allocator that clears memory to a constant
// byte value, and then have an UnsafeList use that custom allocator.
[Test]
public void CustomAllocatorUnsafeListWorks()
{
AllocatorManager.Initialize();
var parent = AllocatorManager.Persistent;
var allocatorHelper = new AllocatorHelper<ClearToValueAllocator>(AllocatorManager.Persistent);
ref var allocator = ref allocatorHelper.Allocator;
allocator.Initialize(0xFE, ref parent);
for (byte ClearValue = 0; ClearValue < 0xF; ++ClearValue)
{
allocator.m_clearValue = ClearValue;
var unsafelist = new UnsafeList<byte>(1, allocator.Handle);
const int kLength = 100;
unsafelist.Resize(kLength);
for (int i = 0; i < kLength; ++i)
Assert.AreEqual(ClearValue, unsafelist[i]);
unsafelist.Dispose();
}
allocator.Dispose();
allocatorHelper.Dispose();
AllocatorManager.Shutdown();
}
[Test]
public unsafe void SlabAllocatorWorks()
{
var SlabSizeInBytes = 256;
var SlabSizeInInts = SlabSizeInBytes / sizeof(int);
var Slabs = 256;
AllocatorManager.Initialize();
var origin = AllocatorManager.Persistent;
var backingStorage = origin.AllocateBlock(default(byte), Slabs * SlabSizeInBytes); // allocate a block of bytes from Malloc.Persistent
var allocatorHelper = new AllocatorHelper<AllocatorManager.SlabAllocator>(AllocatorManager.Persistent);
ref var allocator = ref allocatorHelper.Allocator;
allocator.Initialize(backingStorage, SlabSizeInBytes, Slabs * SlabSizeInBytes);
var expectedAlignment = math.max(JobsUtility.CacheLineSize, UnsafeUtility.AlignOf<int>());
var block0 = allocator.AllocateBlock(default(int), SlabSizeInInts);
Assert.AreNotEqual(IntPtr.Zero, block0.Range.Pointer);
Assert.AreEqual(SlabSizeInInts, block0.Range.Items);
Assert.AreEqual(UnsafeUtility.SizeOf<int>(), block0.BytesPerItem);
Assert.AreEqual(expectedAlignment, block0.Alignment);
Assert.AreEqual(1, allocator.Occupied[0]);
var block1 = allocator.AllocateBlock(default(int), SlabSizeInInts - 1);
Assert.AreNotEqual(IntPtr.Zero, block1.Range.Pointer);
Assert.AreEqual(SlabSizeInInts - 1, block1.Range.Items);
Assert.AreEqual(UnsafeUtility.SizeOf<int>(), block1.BytesPerItem);
Assert.AreEqual(expectedAlignment, block1.Alignment);
Assert.AreEqual(3, allocator.Occupied[0]);
allocator.FreeBlock(ref block0);
Assert.AreEqual(2, allocator.Occupied[0]);
allocator.FreeBlock(ref block1);
Assert.AreEqual(0, allocator.Occupied[0]);
Assert.Throws<ArgumentException>(() =>
{
allocatorHelper.Allocator.AllocateBlock(default(int), 65);
});
allocator.Dispose();
backingStorage.Dispose();
allocatorHelper.Dispose();
AllocatorManager.Shutdown();
}
[Test]
public unsafe void CollectionHelper_IsAligned()
{
Assert.Throws<ArgumentException>(() => CollectionHelper.IsAligned((void*)0x0, 0)); // value is 0
Assert.Throws<ArgumentException>(() => CollectionHelper.IsAligned((void*)0x1000, 0)); // alignment is 0
Assert.Throws<ArgumentException>(() => CollectionHelper.IsAligned((void*)0x1000, 3)); // alignment is not pow2
for (var i = 0; i < 31; ++i)
{
Assert.IsTrue(CollectionHelper.IsAligned((void*)0x80000000, 1<<i));
}
}
[Test]
public void AllocatorManager_AllocateBlock_UsesAlignmentArgument()
{
int sizeOf = 1;
int alignOf = 4096;
int items = 1;
var temp = AllocatorManager.Temp;
var block = temp.AllocateBlock(sizeOf, alignOf, items);
Assert.AreNotEqual(IntPtr.Zero, block.Range.Pointer);
unsafe
{
Assert.IsTrue(CollectionHelper.IsAligned((void*)block.Range.Pointer, alignOf));
}
}
[Test]
public void AllocatorManager_AllocateBlock_AlwaysCacheLineAligned()
{
int sizeOf = 1;
int items = 1;
var temp = AllocatorManager.Temp;
for (int alignment = 1; alignment < 256; ++alignment)
{
var block = temp.AllocateBlock(sizeOf, alignment, items);
Assert.AreNotEqual(IntPtr.Zero, block.Range.Pointer);
unsafe
{
Assert.IsTrue(CollectionHelper.IsAligned((void*)block.Range.Pointer, CollectionHelper.CacheLineSize));
}
}
}
}