| /* |
| * Copyright (c) 2016, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| * |
| */ |
| #ifndef SHARE_VM_LOGGING_LOGHANDLE_HPP |
| #define SHARE_VM_LOGGING_LOGHANDLE_HPP |
| |
| #include "logging/log.hpp" |
| |
| // Wraps a Log instance and throws away the template information. |
| // |
| // This can be used to pass a Log instance as a parameter without |
| // polluting the surrounding API with template functions. |
| class LogHandle { |
| private: |
| LogTagSet* _tagset; |
| |
| public: |
| template <LogTagType T0, LogTagType T1, LogTagType T2, LogTagType T3, LogTagType T4, LogTagType GuardTag> |
| LogHandle(const LogImpl<T0, T1, T2, T3, T4, GuardTag>& type_carrier) : |
| _tagset(&LogTagSetMapping<T0, T1, T2, T3, T4>::tagset()) {} |
| |
| bool is_level(LogLevelType level) { |
| return _tagset->is_level(level); |
| } |
| |
| #define LOG_LEVEL(level, name) ATTRIBUTE_PRINTF(2, 0) \ |
| LogHandle& v##name(const char* fmt, va_list args) { \ |
| _tagset->vwrite(LogLevel::level, fmt, args); \ |
| return *this; \ |
| } \ |
| LogHandle& name(const char* fmt, ...) ATTRIBUTE_PRINTF(2, 3) { \ |
| va_list args; \ |
| va_start(args, fmt); \ |
| _tagset->vwrite(LogLevel::level, fmt, args); \ |
| va_end(args); \ |
| return *this; \ |
| } \ |
| bool is_##name() { \ |
| return _tagset->is_level(LogLevel::level); \ |
| } |
| LOG_LEVEL_LIST |
| #undef LOG_LEVEL |
| }; |
| |
| // Wraps a LogTarget instance and throws away the template information. |
| // |
| // This can be used to pass a Log instance as a parameter without |
| // polluting the surrounding API with template functions. |
| class LogTargetHandle { |
| private: |
| const LogLevelType _level; |
| LogTagSet* _tagset; |
| |
| public: |
| LogTargetHandle(LogLevelType level, LogTagSet* tagset) : _level(level), _tagset(tagset) {} |
| |
| template <LogLevelType level, LogTagType T0, LogTagType T1, LogTagType T2, LogTagType T3, LogTagType T4, LogTagType GuardTag> |
| LogTargetHandle(const LogTargetImpl<level, T0, T1, T2, T3, T4, GuardTag>& type_carrier) : |
| _level(level), |
| _tagset(&LogTagSetMapping<T0, T1, T2, T3, T4>::tagset()) {} |
| |
| template <LogLevelType level, LogTagType T0, LogTagType T1, LogTagType T2, LogTagType T3, LogTagType T4, LogTagType GuardTag> |
| static LogTargetHandle create() { |
| return LogTargetHandle(LogTargetImpl<level, T0, T1, T2, T3, T4, GuardTag>()); |
| } |
| |
| void print(const char* fmt, ...) ATTRIBUTE_PRINTF(2, 3) { |
| va_list args; |
| va_start(args, fmt); |
| _tagset->vwrite(_level, fmt, args); |
| va_end(args); |
| } |
| |
| bool is_enabled() const { |
| return _tagset->is_level(_level); |
| } |
| |
| }; |
| |
| #endif // SHARE_VM_LOGGING_LOGHANDLE_HPP |