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src/share/vm/runtime/vm_version.hpp

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rev 8068 : 6407976: GC worker number should be unsigned
Reviewed-by: jwilhelm
   1 /*
   2  * Copyright (c) 1997, 2014, 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  *


  31 // VM_Version provides information about the VM.
  32 
  33 class Abstract_VM_Version: AllStatic {
  34  protected:
  35   friend class VMStructs;
  36   static const char*  _s_vm_release;
  37   static const char*  _s_internal_vm_info_string;
  38   // These are set by machine-dependent initializations
  39   static bool         _supports_cx8;
  40   static bool         _supports_atomic_getset4;
  41   static bool         _supports_atomic_getset8;
  42   static bool         _supports_atomic_getadd4;
  43   static bool         _supports_atomic_getadd8;
  44   static unsigned int _logical_processors_per_package;
  45   static unsigned int _L1_data_cache_line_size;
  46   static int          _vm_major_version;
  47   static int          _vm_minor_version;
  48   static int          _vm_micro_version;
  49   static int          _vm_build_number;
  50   static bool         _initialized;
  51   static int          _parallel_worker_threads;
  52   static bool         _parallel_worker_threads_initialized;
  53   static int          _reserve_for_allocation_prefetch;
  54 
  55   static unsigned int nof_parallel_worker_threads(unsigned int num,
  56                                                   unsigned int dem,
  57                                                   unsigned int switch_pt);
  58  public:
  59   static void initialize();
  60 
  61   // Name
  62   static const char* vm_name();
  63   // Vendor
  64   static const char* vm_vendor();
  65   // VM version information string printed by launcher (java -version)
  66   static const char* vm_info_string();
  67   static const char* vm_release();
  68   static const char* vm_platform_string();
  69   static const char* vm_build_user();
  70 
  71   static int vm_major_version()               { assert(_initialized, "not initialized"); return _vm_major_version; }


   1 /*
   2  * Copyright (c) 1997, 2015, 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  *


  31 // VM_Version provides information about the VM.
  32 
  33 class Abstract_VM_Version: AllStatic {
  34  protected:
  35   friend class VMStructs;
  36   static const char*  _s_vm_release;
  37   static const char*  _s_internal_vm_info_string;
  38   // These are set by machine-dependent initializations
  39   static bool         _supports_cx8;
  40   static bool         _supports_atomic_getset4;
  41   static bool         _supports_atomic_getset8;
  42   static bool         _supports_atomic_getadd4;
  43   static bool         _supports_atomic_getadd8;
  44   static unsigned int _logical_processors_per_package;
  45   static unsigned int _L1_data_cache_line_size;
  46   static int          _vm_major_version;
  47   static int          _vm_minor_version;
  48   static int          _vm_micro_version;
  49   static int          _vm_build_number;
  50   static bool         _initialized;
  51   static unsigned int _parallel_worker_threads;
  52   static bool         _parallel_worker_threads_initialized;
  53   static int          _reserve_for_allocation_prefetch;
  54 
  55   static unsigned int nof_parallel_worker_threads(unsigned int num,
  56                                                   unsigned int dem,
  57                                                   unsigned int switch_pt);
  58  public:
  59   static void initialize();
  60 
  61   // Name
  62   static const char* vm_name();
  63   // Vendor
  64   static const char* vm_vendor();
  65   // VM version information string printed by launcher (java -version)
  66   static const char* vm_info_string();
  67   static const char* vm_release();
  68   static const char* vm_platform_string();
  69   static const char* vm_build_user();
  70 
  71   static int vm_major_version()               { assert(_initialized, "not initialized"); return _vm_major_version; }


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