--- /dev/null
+/*******************************************************************************
+ * Copyright (c) 2017 Association for Decentralized Information Management
+ * in Industry THTH ry.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ * Semantum Oy - initial API and implementation
+ *******************************************************************************/
+package org.simantics.nativemem.internal.linux;
+
+import java.io.BufferedReader;
+import java.io.IOException;
+import java.nio.charset.Charset;
+import java.nio.file.Files;
+import java.nio.file.Paths;
+
+import org.simantics.nativemem.internal.Resource;
+
+/**
+ * @author Tuukka Lehtonen
+ * @since 1.29.0
+ */
+public class Stat {
+
+ private static final String SELF_STATM = "/proc/self/statm";
+ private static final Charset ASCII = Charset.forName("US-ASCII");
+
+ public static long getCurrentRSS(Resource r) {
+ try (BufferedReader rdr = Files.newBufferedReader(Paths.get(SELF_STATM), ASCII)) {
+ String line = rdr.readLine();
+ String[] nums = line.split(" ");
+ if (nums.length == 0)
+ return 0L;
+ long rss = Long.parseLong(nums[0]);
+ long pageSize = r.sysconf(Resource._SC_PAGESIZE);
+ return rss * pageSize;
+ } catch (NumberFormatException e) {
+ return 0L;
+ } catch (IOException e) {
+ return 0L;
+ }
+ }
+
+}
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