1 files changed, 79 insertions, 0 deletions
diff --git a/libjava/gnu/gcj/util/GCInfo.java b/libjava/gnu/gcj/util/GCInfo.java
new file mode 100644
index 0000000..73f4718
--- /dev/null
+++ b/libjava/gnu/gcj/util/GCInfo.java
@@ -0,0 +1,79 @@
+/* GCInfo.java -- Support for creating heap dumps.
+   Copyright (C) 2007  Free Software Foundation
+
+   This file is part of libgcj.
+
+   This software is copyrighted work licensed under the terms of the
+   Libgcj License.  Please consult the file "LIBGCJ_LICENSE" for
+   details.  */
+
+package gnu.gcj.util;
+
+public class GCInfo
+{
+  private GCInfo()
+  {
+  }
+
+  /**
+   * @throws SecurityException if there is a SecurityManager installed
+   * and UtilPermission("dumpHeap") is not granted.
+   */
+  private static void checkPermission()
+  {
+    SecurityManager sm = System.getSecurityManager();
+    if (sm != null)
+      sm.checkPermission(new UtilPermission("dumpHeap"));
+  }
+  
+
+  /**
+   * Dump a description of the heap state.
+   *
+   * @param namePrefix The filename prefix for the dump files.
+   *
+   * @throws SecurityException if there is a SecurityManager installed
+   * and UtilPermission("dumpHeap") is not granted.
+   */
+  public static synchronized void dump(String name)
+  {
+    checkPermission();
+    dump0(name);
+  }
+  
+  private static native void dump0(String name);
+
+
+  /**
+   * Create a heap dump.
+   *
+   * @param namePrefix The filename prefix for the dump files.
+   *
+   * @throws SecurityException if there is a SecurityManager installed
+   * and UtilPermission("dumpHeap") is not granted.
+   */
+  public static synchronized void enumerate(String namePrefix)
+  {
+    checkPermission();
+    enumerate0(namePrefix);
+  }
+  
+  private static native void enumerate0(String namePrefix);
+
+  /**
+   * Cause a heap dump if out-of-memory condition occurs.
+   *
+   * @param namePrefix The filename prefix for the dump files.  If
+   * null no dumps are created.
+   *
+   * @throws SecurityException if there is a SecurityManager installed
+   * and UtilPermission("dumpHeap") is not granted.
+   */
+  public static synchronized void setOOMDump(String namePrefix)
+  {
+    checkPermission();
+    setOOMDump0(namePrefix);
+  }
+  
+  private static native void setOOMDump0(String namePrefix);
+}