1 /*
   2  * Copyright (c) 2011, 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  *
  23  */
  24 
  25 #include "precompiled.hpp"
  26 #include "gc/g1/g1ErgoVerbose.hpp"
  27 #include "utilities/ostream.hpp"
  28 
  29 ErgoLevel G1ErgoVerbose::_level;
  30 bool G1ErgoVerbose::_enabled[ErgoHeuristicNum];
  31 
  32 void G1ErgoVerbose::initialize() {
  33   set_level(ErgoLow);
  34   set_enabled(false);
  35 }
  36 
  37 void G1ErgoVerbose::set_level(ErgoLevel level) {
  38   _level = level;
  39 }
  40 
  41 void G1ErgoVerbose::set_enabled(ErgoHeuristic n, bool enabled) {
  42   assert(0 <= n && n < ErgoHeuristicNum, "pre-condition");
  43   _enabled[n] = enabled;
  44 }
  45 
  46 void G1ErgoVerbose::set_enabled(bool enabled) {
  47   for (int n = 0; n < ErgoHeuristicNum; n += 1) {
  48     set_enabled((ErgoHeuristic) n, enabled);
  49   }
  50 }
  51 
  52 const char* G1ErgoVerbose::to_string(int tag) {
  53   ErgoHeuristic n = extract_heuristic(tag);
  54   switch (n) {
  55   case ErgoHeapSizing:        return "Heap Sizing";
  56   case ErgoCSetConstruction:  return "CSet Construction";
  57   case ErgoConcCycles:        return "Concurrent Cycles";
  58   case ErgoMixedGCs:          return "Mixed GCs";
  59   case ErgoTiming:            return "Timing";
  60   default:
  61     ShouldNotReachHere();
  62     // Keep the Windows compiler happy
  63     return NULL;
  64   }
  65 }