MemoryPool

Author: ibrahimatay

CsharpLangExamples.sln

@@ -75,6 +75,8 @@ Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "MulticastDelegates", "Multi
 EndProject
 Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "ArrayPool", "ArrayPool\ArrayPool.csproj", "{FDB639A1-C301-4C4C-955F-DE77A2517176}"
 EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "MemoryPool", "MemoryPool\MemoryPool.csproj", "{F1C093BB-C3D5-4ABF-B3EB-F05646C11638}"
+EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
 		Debug|Any CPU = Debug|Any CPU
@@ -225,6 +227,10 @@ Global
 		{FDB639A1-C301-4C4C-955F-DE77A2517176}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{FDB639A1-C301-4C4C-955F-DE77A2517176}.Release|Any CPU.ActiveCfg = Release|Any CPU
 		{FDB639A1-C301-4C4C-955F-DE77A2517176}.Release|Any CPU.Build.0 = Release|Any CPU
+		{F1C093BB-C3D5-4ABF-B3EB-F05646C11638}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{F1C093BB-C3D5-4ABF-B3EB-F05646C11638}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{F1C093BB-C3D5-4ABF-B3EB-F05646C11638}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{F1C093BB-C3D5-4ABF-B3EB-F05646C11638}.Release|Any CPU.Build.0 = Release|Any CPU
 	EndGlobalSection
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE

MemoryPool/MemoryPool.csproj

@@ -0,0 +1,10 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <OutputType>Exe</OutputType>
+    <TargetFramework>net8.0</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+
+</Project>

MemoryPool/Program.cs

@@ -0,0 +1,26 @@
+using System;
+using System.Buffers;
+
+// MemoryPool<T> Class
+// https://learn.microsoft.com/en-us/dotnet/api/system.buffers.memorypool-1?view=net-8.0
+// https://github.com/dotnet/runtime/blob/main/src/libraries/System.Memory/src/System/Buffers/MemoryPool.cs
+
+// Use the singleton pool
+// https://stackoverflow.com/questions/73661594/whats-the-point-of-c-sharp-memory-pool
+using var owner = MemoryPool<double>.Shared.Rent(100); 
+Memory<double> mem = owner.Memory;
+
+MemoryPool<byte> memoryPool = MemoryPool<byte>.Shared;
+IMemoryOwner<byte> memoryOwner = memoryPool.Rent(1024); 
+Memory<byte> memory = memoryOwner.Memory;
+
+try
+{
+    Span<byte> span = memory.Span;
+    span[0] = 42;
+}
+finally
+{ 
+    memoryOwner.Dispose();
+}
+

README.md

@@ -57,6 +57,7 @@ Examples of C# programming, with the goal of tracking and staying up-to-date wit
   * [Dynamic types](DynamicTypes/)
   * [Multicast Delegates](MulticastDelegates/)
   * [ArrayPool](ArrayPool/)
+  * [MemoryPool](MemoryPool/)
 
 ## Notes
 - [Which C# version is included in which framework version?](https://learn.microsoft.com/en-us/dotnet/csharp/language-reference/configure-language-version)