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_LOGTAG_HPP 25 #define SHARE_VM_LOGGING_LOGTAG_HPP 26 #include "utilities/globalDefinitions.hpp" 27 28 // List of available logging tags. New tags should be added here. 29 // (The tags 'all', 'disable' and 'help' are special tags that can 30 // not be used in log calls, and should not be listed below.) 31 #define LOG_TAG_LIST \ 32 LOG_TAG(gc) \ 33 LOG_TAG(rt) \ 34 LOG_TAG(svc) \ 35 LOG_TAG(logging) \ 36 LOG_TAG(comp) 37 38 #define PREFIX_LOG_TAG(T) (LogTag::T) 39 40 // Expand a set of log tags to their prefixed names. 41 // For error detection purposes, the macro passes one more tag than what is supported. 42 // If too many tags are given, a static assert in the log class will fail. 43 #define LOG_TAGS_EXPANDED(T0, T1, T2, T3, T4, T5, ...) PREFIX_LOG_TAG(T0), PREFIX_LOG_TAG(T1), PREFIX_LOG_TAG(T2), \ 44 PREFIX_LOG_TAG(T3), PREFIX_LOG_TAG(T4), PREFIX_LOG_TAG(T5) 45 // The EXPAND_VARARGS macro is required for MSVC, or it will resolve the LOG_TAGS_EXPANDED macro incorrectly. 46 #define EXPAND_VARARGS(x) x 47 #define LOG_TAGS(...) EXPAND_VARARGS(LOG_TAGS_EXPANDED(__VA_ARGS__, __NO_TAG, __NO_TAG, __NO_TAG, __NO_TAG, __NO_TAG, __NO_TAG)) 48 49 class LogTag { 50 public: 51 static const size_t MaxTags = 5; 52 53 enum type { 54 __NO_TAG, 55 #define LOG_TAG(name) name, 56 LOG_TAG_LIST 57 #undef LOG_TAG 58 Count 59 }; 60 61 static const char* name(LogTag::type tag) { 62 return _name[tag]; 63 } 64 65 static LogTag::type from_string(const char *str); 66 67 private: 68 static const char* _name[]; 69 }; 70 71 typedef LogTag::type LogTagType; 72 73 #endif