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  */
  24 



  25 // Prints periodic memory usage trace of HotSpot VM
  26 
  27 class MemProfilerTask;
  28 
  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 };

   1 /*
   2  * Copyright (c) 1998, 2010, 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  */
  24 
  25 #ifndef SHARE_VM_RUNTIME_MEMPROFILER_HPP
  26 #define SHARE_VM_RUNTIME_MEMPROFILER_HPP
  27 
  28 // Prints periodic memory usage trace of HotSpot VM
  29 
  30 class MemProfilerTask;
  31 
  32 class MemProfiler : AllStatic {
  33  friend class MemProfilerTask;
  34  private:
  35   static MemProfilerTask* _task;
  36   static FILE* _log_fp;
  37   // Do trace (callback from MemProfilerTask and from disengage)
  38   static void do_trace()      PRODUCT_RETURN;
  39  public:
  40   // Start/stop the profiler
  41   static void engage()        PRODUCT_RETURN;
  42   static void disengage()     PRODUCT_RETURN;
  43   // Tester
  44   static bool is_active()     PRODUCT_RETURN0;
  45 };
  46 
  47 #endif // SHARE_VM_RUNTIME_MEMPROFILER_HPP