src/share/vm/runtime/memprofiler.hpp

changeset 435
a61af66fc99e
child 1907
c18cbe5936b8
     1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/src/share/vm/runtime/memprofiler.hpp	Sat Dec 01 00:00:00 2007 +0000
     1.3 @@ -0,0 +1,42 @@
     1.4 +/*
     1.5 + * Copyright 1998 Sun Microsystems, Inc.  All Rights Reserved.
     1.6 + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
     1.7 + *
     1.8 + * This code is free software; you can redistribute it and/or modify it
     1.9 + * under the terms of the GNU General Public License version 2 only, as
    1.10 + * published by the Free Software Foundation.
    1.11 + *
    1.12 + * This code is distributed in the hope that it will be useful, but WITHOUT
    1.13 + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
    1.14 + * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
    1.15 + * version 2 for more details (a copy is included in the LICENSE file that
    1.16 + * accompanied this code).
    1.17 + *
    1.18 + * You should have received a copy of the GNU General Public License version
    1.19 + * 2 along with this work; if not, write to the Free Software Foundation,
    1.20 + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
    1.21 + *
    1.22 + * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
    1.23 + * CA 95054 USA or visit www.sun.com if you need additional information or
    1.24 + * have any questions.
    1.25 + *
    1.26 + */
    1.27 +
    1.28 +// Prints periodic memory usage trace of HotSpot VM
    1.29 +
    1.30 +class MemProfilerTask;
    1.31 +
    1.32 +class MemProfiler : AllStatic {
    1.33 + friend class MemProfilerTask;
    1.34 + private:
    1.35 +  static MemProfilerTask* _task;
    1.36 +  static FILE* _log_fp;
    1.37 +  // Do trace (callback from MemProfilerTask and from disengage)
    1.38 +  static void do_trace()      PRODUCT_RETURN;
    1.39 + public:
    1.40 +  // Start/stop the profiler
    1.41 +  static void engage()        PRODUCT_RETURN;
    1.42 +  static void disengage()     PRODUCT_RETURN;
    1.43 +  // Tester
    1.44 +  static bool is_active()     PRODUCT_RETURN0;
    1.45 +};

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