Fix MMapDirectory performance and crashes via raw memory access and drain-reclaiming, #1151, #1013

Directory.Build.targets

@@ -104,14 +104,15 @@
   <PropertyGroup Condition=" '$(TargetFramework)' == 'netstandard2.1' Or $(TargetFramework.StartsWith('netcoreapp3.')) Or $(TargetFramework.StartsWith('net5.')) Or $(TargetFramework.StartsWith('net6.')) Or $(TargetFramework.StartsWith('net7.')) Or $(TargetFramework.StartsWith('net8.')) Or $(TargetFramework.StartsWith('net9.')) Or $(TargetFramework.StartsWith('net10.')) ">
 
     <DefineConstants>$(DefineConstants);FEATURE_ARRAY_FILL</DefineConstants>
-    <DefineConstants>$(DefineConstants);FEATURE_CONDITIONALWEAKTABLE_ENUMERATOR</DefineConstants>
     <DefineConstants>$(DefineConstants);FEATURE_CONDITIONALWEAKTABLE_ADDORUPDATE</DefineConstants>
+    <DefineConstants>$(DefineConstants);FEATURE_CONDITIONALWEAKTABLE_ENUMERATOR</DefineConstants>
     <DefineConstants>$(DefineConstants);FEATURE_ENCODING_GETSTRING_READONLYSPAN</DefineConstants>
+    <DefineConstants>$(DefineConstants);FEATURE_INTERLOCKED_MEMORYBARRIERPROCESSWIDE</DefineConstants>
     <DefineConstants>$(DefineConstants);FEATURE_MEMORYMARSHAL_CREATEREADONLYSPAN</DefineConstants>
     <DefineConstants>$(DefineConstants);FEATURE_NUMBER_PARSE_READONLYSPAN</DefineConstants>
+    <DefineConstants>$(DefineConstants);FEATURE_QUEUE_TRYDEQUEUE_TRYPEEK</DefineConstants>
     <DefineConstants>$(DefineConstants);FEATURE_STREAM_READ_SPAN</DefineConstants>
     <DefineConstants>$(DefineConstants);FEATURE_STRINGBUILDER_APPEND_READONLYSPAN</DefineConstants>
-    <DefineConstants>$(DefineConstants);FEATURE_QUEUE_TRYDEQUEUE_TRYPEEK</DefineConstants>
 
   </PropertyGroup>
 

Lucene.Net.sln.DotSettings

@@ -2,6 +2,8 @@
 	<s:Boolean x:Key="/Default/UserDictionary/Words/=Coord/@EntryIndexedValue">True</s:Boolean>
 	<s:Boolean x:Key="/Default/UserDictionary/Words/=csharpsquid/@EntryIndexedValue">True</s:Boolean>
 	<s:Boolean x:Key="/Default/UserDictionary/Words/=LUCENENET/@EntryIndexedValue">True</s:Boolean>
+	<s:Boolean x:Key="/Default/UserDictionary/Words/=mmap/@EntryIndexedValue">True</s:Boolean>
+	<s:Boolean x:Key="/Default/UserDictionary/Words/=refcounted/@EntryIndexedValue">True</s:Boolean>
 	<s:Boolean x:Key="/Default/UserDictionary/Words/=stopword/@EntryIndexedValue">True</s:Boolean>
 	<s:Boolean x:Key="/Default/UserDictionary/Words/=stopwords/@EntryIndexedValue">True</s:Boolean>
 	<s:Boolean x:Key="/Default/UserDictionary/Words/=streamutils/@EntryIndexedValue">True</s:Boolean>

src/Lucene.Net.Tests._J-S/Lucene.Net.Tests._J-S.csproj

@@ -37,6 +37,14 @@
     <Compile Include="..\Lucene.Net.Tests\Support\**\*.cs" LinkBase="Support" Exclude="..\Lucene.Net.Tests\Support\ExceptionHandling\**\*" />
     <Compile Include="..\Lucene.Net.Tests\Util\TestNumericUtils.cs" Link="Util\TestNumericUtils.cs" />
     <EmbeddedResource Include="..\Lucene.Net.Tests\Store\LUCENENET521.zip" Link="Store\LUCENENET521.zip" />
+    <!--
+      3.x CFS index fixtures, re-linked into the Store namespace so
+      TestMultiMMap can exercise the MMapDirectory IndexInputSlicer
+      OpenFullSlice path used by CompoundFileDirectory when reading
+      CFS files from 3.x indexes.
+    -->
+    <EmbeddedResource Include="..\Lucene.Net.Tests\Index\index.30.cfs.zip" Link="Store\index.30.cfs.zip" />
+    <EmbeddedResource Include="..\Lucene.Net.Tests\Index\index.31.cfs.zip" Link="Store\index.31.cfs.zip" />
   </ItemGroup>
 
   <ItemGroup>