Rudimentary Linux and MacOSX support for org.simantics.nativemem

[simantics/platform.git] / bundles / org.simantics.nativemem / src / org / simantics / nativemem / internal / Resource32.java

diff --git a/bundles/org.simantics.nativemem/src/org/simantics/nativemem/internal/Resource32.java b/bundles/org.simantics.nativemem/src/org/simantics/nativemem/internal/Resource32.java
new file mode 100644 (file)
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+++ b/bundles/org.simantics.nativemem/src/org/simantics/nativemem/internal/Resource32.java
@@ -0,0 +1,75 @@
+/*******************************************************************************
+ * Copyright (c) 2016, 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;
+
+import java.util.List;
+
+import com.sun.jna.Native;
+import com.sun.jna.Structure;
+
+/**
+ * This should work for Linux, MacOSX and BSD.
+
+ * @author Tuukka Lehtonen
+ * @since 1.29.0
+ */
+public interface Resource32 extends Resource {
+    Resource32 INSTANCE = Native.loadLibrary("c", Resource32.class);
+
+    public static class Timeval extends Structure {
+
+        public static final List<String> FIELDS = createFieldsOrder("tv_sec", "tv_usec");
+
+        int v_sec;    /* seconds */
+        int tv_usec;  /* microseconds */
+
+        public List<String> getFieldOrder() {
+            return FIELDS;
+        }
+    };
+
+    public static class Rusage extends Structure {
+
+        public static final List<String> FIELDS = createFieldsOrder("ru_utime", "ru_stime", "ru_maxrss", "ru_ixrss",
+                "ru_idrss", "ru_isrss", "ru_minflt", "ru_maxflt", "ru_nswap", "ru_inblock", "ru_oublock", "ru_msgsnd",
+                "ru_msgrcv", "ru_nsignals", "ru_nvcsw", "ru_nivcsw");
+
+        Timeval ru_utime;        /* user CPU time used */
+        Timeval ru_stime;        /* system CPU time used */
+        long   ru_maxrss;        /* maximum resident set size */
+        long   ru_ixrss;         /* integral shared memory size */
+        long   ru_idrss;         /* integral unshared data size */
+        long   ru_isrss;         /* integral unshared stack size */
+        long   ru_minflt;        /* page reclaims (soft page faults) */
+        long   ru_majflt;        /* page faults (hard page faults) */
+        long   ru_nswap;         /* swaps */
+        long   ru_inblock;       /* block input operations */
+        long   ru_oublock;       /* block output operations */
+        long   ru_msgsnd;        /* IPC messages sent */
+        long   ru_msgrcv;        /* IPC messages received */
+        long   ru_nsignals;      /* signals received */
+        long   ru_nvcsw;         /* voluntary context switches */
+        long   ru_nivcsw;        /* involuntary context switches */
+
+        @Override
+        protected List<String> getFieldOrder() {
+            return FIELDS;
+        }
+
+        public void writeTo(CMemoryInfo to) {
+            to.peakRSS = ru_maxrss;
+        }
+
+    }
+
+    int getrusage(int who, Rusage rusage);
+}