src/share/vm/runtime/memprofiler.hpp

Wed, 11 Aug 2010 05:51:21 -0700

author
twisti
date
Wed, 11 Aug 2010 05:51:21 -0700
changeset 2047
d2ede61b7a12
parent 1907
c18cbe5936b8
child 2314
f95d63e2154a
permissions
-rw-r--r--

6976186: integrate Shark HotSpot changes
Summary: Shark is a JIT compiler for Zero that uses the LLVM compiler infrastructure.
Reviewed-by: kvn, twisti
Contributed-by: Gary Benson <gbenson@redhat.com>

     1 /*
     2  * Copyright (c) 1998, Oracle and/or its affiliates. All rights reserved.
     3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
     4  *
     5  * This code is free software; you can redistribute it and/or modify it
     6  * under the terms of the GNU General Public License version 2 only, as
     7  * published by the Free Software Foundation.
     8  *
     9  * This code is distributed in the hope that it will be useful, but WITHOUT
    10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
    11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
    12  * version 2 for more details (a copy is included in the LICENSE file that
    13  * accompanied this code).
    14  *
    15  * You should have received a copy of the GNU General Public License version
    16  * 2 along with this work; if not, write to the Free Software Foundation,
    17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
    18  *
    19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
    20  * or visit www.oracle.com if you need additional information or have any
    21  * questions.
    22  *
    23  */
    25 // Prints periodic memory usage trace of HotSpot VM
    27 class MemProfilerTask;
    29 class MemProfiler : AllStatic {
    30  friend class MemProfilerTask;
    31  private:
    32   static MemProfilerTask* _task;
    33   static FILE* _log_fp;
    34   // Do trace (callback from MemProfilerTask and from disengage)
    35   static void do_trace()      PRODUCT_RETURN;
    36  public:
    37   // Start/stop the profiler
    38   static void engage()        PRODUCT_RETURN;
    39   static void disengage()     PRODUCT_RETURN;
    40   // Tester
    41   static bool is_active()     PRODUCT_RETURN0;
    42 };

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