duke@435: /*
duke@435:  * Copyright 1998 Sun Microsystems, Inc.  All Rights Reserved.
duke@435:  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
duke@435:  *
duke@435:  * This code is free software; you can redistribute it and/or modify it
duke@435:  * under the terms of the GNU General Public License version 2 only, as
duke@435:  * published by the Free Software Foundation.
duke@435:  *
duke@435:  * This code is distributed in the hope that it will be useful, but WITHOUT
duke@435:  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
duke@435:  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
duke@435:  * version 2 for more details (a copy is included in the LICENSE file that
duke@435:  * accompanied this code).
duke@435:  *
duke@435:  * You should have received a copy of the GNU General Public License version
duke@435:  * 2 along with this work; if not, write to the Free Software Foundation,
duke@435:  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
duke@435:  *
duke@435:  * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
duke@435:  * CA 95054 USA or visit www.sun.com if you need additional information or
duke@435:  * have any questions.
duke@435:  *
duke@435:  */
duke@435: 
duke@435: // Prints periodic memory usage trace of HotSpot VM
duke@435: 
duke@435: class MemProfilerTask;
duke@435: 
duke@435: class MemProfiler : AllStatic {
duke@435:  friend class MemProfilerTask;
duke@435:  private:
duke@435:   static MemProfilerTask* _task;
duke@435:   static FILE* _log_fp;
duke@435:   // Do trace (callback from MemProfilerTask and from disengage)
duke@435:   static void do_trace()      PRODUCT_RETURN;
duke@435:  public:
duke@435:   // Start/stop the profiler
duke@435:   static void engage()        PRODUCT_RETURN;
duke@435:   static void disengage()     PRODUCT_RETURN;
duke@435:   // Tester
duke@435:   static bool is_active()     PRODUCT_RETURN0;
duke@435: };