Fixed missing NetworkStream lock

Author: plasmapper

CHANGELOG.md

@@ -4,6 +4,10 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## [2.2.2] - 2023-09-20
+### Fixed
+- Missing NetworkStream lock.
+
 ## [2.2.1] - 2023-08-01
 ### Fixed
 - IDisposable implementation.

PL.Modbus/NetworkStream.cs

@@ -68,11 +68,20 @@ public override void Open()
         public override void Close() =>
             _tcpClient.Dispose();
 
-        public override IDisposable Lock() => new DisposableLock();
+        public override IDisposable Lock() => new NetworkStreamLock(this);
 
-        private class DisposableLock : IDisposable
+        private class NetworkStreamLock : IDisposable
         {
-            public void Dispose() { }
+            NetworkStream _networkStream;
+
+            public NetworkStreamLock(NetworkStream networkStream)
+            {
+                _networkStream = networkStream;
+                Monitor.Enter(_networkStream);
+            }
+
+            public void Dispose() =>
+                Monitor.Exit(_networkStream);
         }
     }
 }

PL.Modbus/PL.Modbus.csproj

@@ -12,9 +12,9 @@
     <RepositoryType>git</RepositoryType>
     <PackageTags>modbus;client</PackageTags>
     <PackageReleaseNotes>Fixed
-- IDisposable implementation</PackageReleaseNotes>
+- Missing NetworkStream lock.</PackageReleaseNotes>
     <PackageLicenseExpression>MIT</PackageLicenseExpression>
-    <VersionPrefix>2.2.1</VersionPrefix>
+    <VersionPrefix>2.2.2</VersionPrefix>
   </PropertyGroup>
 
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|AnyCPU'">