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Kha/Backends/Node/js/node/V8.hx

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+/*
+ * Copyright (C)2014-2020 Haxe Foundation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+
+package js.node;
+
+/**
+	The v8 module exposes APIs that are specific to the version of V8 built into the Node.js binary.
+
+	Note: The APIs and implementation are subject to change at any time.
+**/
+@:jsRequire("v8")
+extern class V8 {
+	static function getHeapStatistics():V8HeapStatistics;
+
+	/**
+		Returns statistics about the V8 heap spaces, i.e. the segments which make up the V8 heap.
+		Neither the ordering of heap spaces, nor the availability of a heap space can be guaranteed
+		as the statistics are provided via the V8 `GetHeapSpaceStatistics` function and may change
+		from one V8 version to the next.
+	**/
+	static function getHeapSpaceStatistics():Array<V8HeapSpaceStatistics>;
+
+	/**
+		This method can be used to programmatically set V8 command line flags. This method should be used with care.
+		Changing settings after the VM has started may result in unpredictable behavior, including crashes and data loss;
+		or it may simply do nothing.
+
+		The V8 options available for a version of Node.js may be determined by running `node --v8-options`.
+	**/
+	static function setFlagsFromString(string:String):Void;
+}
+
+/**
+	Object returned by `V8.getHeapStatistics` method.
+**/
+typedef V8HeapStatistics = {
+	var total_heap_size:Int;
+	var total_heap_size_executable:Int;
+	var total_physical_size:Int;
+	var total_available_size:Int;
+	var used_heap_size:Int;
+	var heap_size_limit:Int;
+}
+
+/**
+	Object returned by `V8.getHeapSpaceStatistics` method.
+**/
+typedef V8HeapSpaceStatistics = {
+	var space_name:String;
+	var space_size:Int;
+	var space_used_size:Int;
+	var space_available_size:Int;
+	var physical_space_size:Int;
+}