1 /*
   2  * Copyright (c) 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 #ifndef SHARE_VM_LOGGING_LOGLEVEL_HPP
  25 #define SHARE_VM_LOGGING_LOGLEVEL_HPP
  26 
  27 #include "memory/allocation.hpp"
  28 #include "utilities/macros.hpp"
  29 
  30 // The list of log levels:
  31 //
  32 //  develop - A non-product level that is finer than trace.
  33 //            Should be used for really expensive and/or
  34 //            extensive logging, or logging that shouldn't
  35 //            or can't be included in a product build.
  36 //
  37 //  trace   - Finest level of logging in product builds.
  38 //            Use for extensive/noisy logging that can
  39 //            give slow-down when enabled.
  40 //
  41 //  debug   - A finer level of logging. Use for semi-noisy
  42 //            logging that is does not fit the info level.
  43 //
  44 //  info    - General level of logging. Use for significant
  45 //            events and/or informative summaries.
  46 //
  47 //  warning - Important messages that are not strictly errors.
  48 //
  49 //  error   - Critical messages caused by errors.
  50 //
  51 #define LOG_LEVEL_LIST \
  52   NOT_PRODUCT(LOG_LEVEL(Develop, develop)) \
  53   LOG_LEVEL(Trace, trace) \
  54   LOG_LEVEL(Debug, debug) \
  55   LOG_LEVEL(Info, info) \
  56   LOG_LEVEL(Warning, warning) \
  57   LOG_LEVEL(Error, error)
  58 
  59 class LogLevel : public AllStatic {
  60  public:
  61   enum type {
  62     Off,
  63 #define LOG_LEVEL(name, printname) name,
  64     LOG_LEVEL_LIST
  65 #undef LOG_LEVEL
  66     Count,
  67     Invalid,
  68     First = Off + 1,
  69     Last = Error,
  70     Default = Warning,
  71     Unspecified = Info
  72   };
  73 
  74   static const char *name(LogLevel::type level) {
  75     return _name[level];
  76   }
  77 
  78   static LogLevel::type from_string(const char* str);
  79 
  80  private:
  81   static const char* _name[];
  82 };
  83 
  84 typedef LogLevel::type LogLevelType;
  85 
  86 #endif // SHARE_VM_LOGGING_LOGLEVEL_HPP