In JavaScriptEngineSwitcher.ChakraCore in configuration settings of the ChakraCore JS engine was added two new properties - MemoryLimit and DisableFatalOnOOM (default false)

Author: Taritsyn

NuGet/JavaScriptEngineSwitcher.ChakraCore/JavaScriptEngineSwitcher.ChakraCore.nuspec

@@ -22,7 +22,8 @@ This package does not contain the native implementations of ChakraCore. Therefor
 		<summary>JavaScriptEngineSwitcher.ChakraCore contains adapter `ChakraCoreJsEngine` (wrapper for the ChakraCore).</summary>
 		<releaseNotes>1. ChakraCore was updated to version 1.8.1;
 2. JavaScriptEngineSwitcher.ChakraCore.Native.debian-x64 package has been replaced by the JavaScriptEngineSwitcher.ChakraCore.Native.linux-x64 package;
-3. Prevented an occurrence of the “Host may not have set any promise continuation callback. Promises may not be executed.” error.</releaseNotes>
+3. Prevented an occurrence of the “Host may not have set any promise continuation callback. Promises may not be executed.” error;
+4. In configuration settings of the ChakraCore JS engine was added two new properties - `MemoryLimit` and `DisableFatalOnOOM` (default `false`).</releaseNotes>
 		<copyright>Copyright (c) 2013-2018 Andrey Taritsyn - http://www.taritsyn.ru</copyright>
 		<language>en-US</language>
 		<tags>JavaScriptEngineSwitcher JavaScript ECMAScript ChakraCore</tags>

NuGet/JavaScriptEngineSwitcher.ChakraCore/readme.txt

@@ -34,7 +34,9 @@
    2. JavaScriptEngineSwitcher.ChakraCore.Native.debian-x64 package has been
       replaced by the JavaScriptEngineSwitcher.ChakraCore.Native.linux-x64 package;
    3. Prevented an occurrence of the “Host may not have set any promise
-      continuation callback. Promises may not be executed.” error.
+      continuation callback. Promises may not be executed.” error;
+   4. In configuration settings of the ChakraCore JS engine was added two new
+      properties - `MemoryLimit` and `DisableFatalOnOOM` (default `false`).
 
    =============
    DOCUMENTATION

src/JavaScriptEngineSwitcher.ChakraCore/ChakraCoreJsEngine.cs

@@ -136,13 +136,17 @@ public ChakraCoreJsEngine(ChakraCoreSettings settings)
 			{
 				attributes |= JsRuntimeAttributes.DisableBackgroundWork;
 			}
+			if (chakraCoreSettings.DisableEval)
+			{
+				attributes |= JsRuntimeAttributes.DisableEval;
+			}
 			if (chakraCoreSettings.DisableNativeCodeGeneration)
 			{
 				attributes |= JsRuntimeAttributes.DisableNativeCodeGeneration;
 			}
-			if (chakraCoreSettings.DisableEval)
+			if (chakraCoreSettings.DisableFatalOnOOM)
 			{
-				attributes |= JsRuntimeAttributes.DisableEval;
+				attributes |= JsRuntimeAttributes.DisableFatalOnOOM;
 			}
 			if (chakraCoreSettings.EnableExperimentalFeatures)
 			{
@@ -157,6 +161,8 @@ public ChakraCoreJsEngine(ChakraCoreSettings settings)
 				try
 				{
 					_jsRuntime = JsRuntime.Create(attributes, null);
+					_jsRuntime.MemoryLimit = settings.MemoryLimit;
+
 					_jsContext = _jsRuntime.CreateContext();
 					_jsContext.AddRef();
 				}

src/JavaScriptEngineSwitcher.ChakraCore/ChakraCoreSettings.cs

@@ -1,4 +1,8 @@
-namespace JavaScriptEngineSwitcher.ChakraCore
+using System;
+
+using JavaScriptEngineSwitcher.Core.Utilities;
+
+namespace JavaScriptEngineSwitcher.ChakraCore
 {
 	/// <summary>
 	/// Settings of the ChakraCore JS engine
@@ -15,6 +19,15 @@ public bool DisableBackgroundWork
 			set;
 		}
 
+		/// <summary>
+		/// Gets or sets a flag for whether to disable calls of <code>eval</code> function
+		/// </summary>
+		public bool DisableEval
+		{
+			get;
+			set;
+		}
+
 		/// <summary>
 		/// Gets or sets a flag for whether to disable native code generation
 		/// </summary>
@@ -25,9 +38,9 @@ public bool DisableNativeCodeGeneration
 		}
 
 		/// <summary>
-		/// Gets or sets a flag for whether to disable calls of <code>eval</code> function
+		/// Gets or sets a flag for whether to disable Failfast fatal error on OOM
 		/// </summary>
-		public bool DisableEval
+		public bool DisableFatalOnOOM
 		{
 			get;
 			set;
@@ -42,16 +55,28 @@ public bool EnableExperimentalFeatures
 			set;
 		}
 
+		/// <summary>
+		/// Gets or sets a current memory limit for a runtime in bytes
+		/// </summary>
+		public UIntPtr MemoryLimit
+		{
+			get;
+			set;
+		}
+
 
 		/// <summary>
-		/// Constructs instance of the ChakraCore settings
+		/// Constructs an instance of the ChakraCore settings
 		/// </summary>
 		public ChakraCoreSettings()
 		{
 			DisableBackgroundWork = false;
-			DisableNativeCodeGeneration = false;
 			DisableEval = false;
+			DisableNativeCodeGeneration = false;
+			DisableFatalOnOOM = false;
 			EnableExperimentalFeatures = false;
+			MemoryLimit = Utils.Is64BitProcess() ?
+				new UIntPtr(ulong.MaxValue) : new UIntPtr(uint.MaxValue);
 		}
 	}
 }