view src/share/vm/services/dtraceAttacher.hpp @ 615:c6c601a0f2d6

6797870: Add -XX:+{HeapDump,PrintClassHistogram}{Before,After}FullGC Summary: Call newly created CollectedHeap::dump_{pre,post}_full_gc before and after every stop-world full collection cycle on GenCollectedHeap and ParallelScavengeHeap. (Support for G1CollectedHeap forthcoming under CR 6810861.) Small modifications to existing heap dumping and class histogram implementation, especially to allow multiple on-the-fly histos/dumps by the VM thread during a single safepoint. Reviewed-by: jmasa, alanb, mchung
author ysr
date Mon, 02 Mar 2009 16:37:04 -0800
parents a61af66fc99e
children e392695de029
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/*
 * Copyright 2006 Sun Microsystems, Inc.  All Rights Reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.
 *
 * This code is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
 * CA 95054 USA or visit www.sun.com if you need additional information or
 * have any questions.
 *
 */

#define DTRACE_ALLOC_PROBES    0x1
#define DTRACE_METHOD_PROBES   0x2
#define DTRACE_MONITOR_PROBES  0x4
#define DTRACE_ALL_PROBES      (DTRACE_ALLOC_PROBES  | \
                                DTRACE_METHOD_PROBES | \
                                DTRACE_MONITOR_PROBES)

class DTrace : public AllStatic {
 private:
  // disable one or more probes - OR above constants
  static void disable_dprobes(int probe_types);

 public:
  // enable one or more probes - OR above constants
  static void enable_dprobes(int probe_types);
  // all clients detached, do any clean-up
  static void detach_all_clients();
  // set ExtendedDTraceProbes flag
  static void set_extended_dprobes(bool value);
};