hotspot/src/share/vm/services/dtraceAttacher.hpp
author ysr
Mon, 02 Mar 2009 16:37:04 -0800
changeset 2141 e9a644aaff87
parent 1 489c9b5090e2
child 5089 0cce506a0158
permissions -rw-r--r--
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
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/*
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 * Copyright 2006 Sun Microsystems, Inc.  All Rights Reserved.
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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 *
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 * This code is free software; you can redistribute it and/or modify it
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 * under the terms of the GNU General Public License version 2 only, as
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 * published by the Free Software Foundation.
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 *
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 * This code is distributed in the hope that it will be useful, but WITHOUT
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 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
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 * version 2 for more details (a copy is included in the LICENSE file that
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 * accompanied this code).
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 *
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 * You should have received a copy of the GNU General Public License version
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 * 2 along with this work; if not, write to the Free Software Foundation,
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 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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 *
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 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
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 * CA 95054 USA or visit www.sun.com if you need additional information or
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 * have any questions.
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 *
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 */
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#define DTRACE_ALLOC_PROBES    0x1
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#define DTRACE_METHOD_PROBES   0x2
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#define DTRACE_MONITOR_PROBES  0x4
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#define DTRACE_ALL_PROBES      (DTRACE_ALLOC_PROBES  | \
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                                DTRACE_METHOD_PROBES | \
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                                DTRACE_MONITOR_PROBES)
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class DTrace : public AllStatic {
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 private:
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  // disable one or more probes - OR above constants
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  static void disable_dprobes(int probe_types);
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 public:
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  // enable one or more probes - OR above constants
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  static void enable_dprobes(int probe_types);
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  // all clients detached, do any clean-up
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  static void detach_all_clients();
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  // set ExtendedDTraceProbes flag
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  static void set_extended_dprobes(bool value);
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};