154a1a02bf
Use script and some manual fixup to fix directores names in include guards. Reviewed-by: lfoltan, eosterlund, kbarrett
132 lines
4.0 KiB
C++
132 lines
4.0 KiB
C++
/*
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* Copyright (c) 2016, 2019, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*
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*/
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#ifndef SHARE_LOGGING_LOGMESSAGEBUFFER_HPP
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#define SHARE_LOGGING_LOGMESSAGEBUFFER_HPP
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#include "logging/logDecorations.hpp"
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#include "logging/logLevel.hpp"
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#include "memory/allocation.hpp"
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class LogMessageBuffer : public StackObj {
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friend class LogMessageTest;
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protected:
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struct LogLine {
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LogLevelType level;
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size_t message_offset;
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};
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static const size_t InitialLineCapacity = 10;
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static const size_t InitialMessageBufferCapacity = 1024;
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size_t _message_buffer_size;
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size_t _message_buffer_capacity;
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char* _message_buffer;
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size_t _line_count;
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size_t _line_capacity;
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LogLine* _lines;
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bool _allocated;
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LogLevelType _least_detailed_level;
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size_t (*_prefix_fn)(char*, size_t);
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void initialize_buffers();
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private:
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// Forbid copy assignment and copy constructor.
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void operator=(const LogMessageBuffer& ref) {}
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LogMessageBuffer(const LogMessageBuffer& ref) {}
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public:
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LogMessageBuffer();
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~LogMessageBuffer();
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class Iterator {
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private:
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const LogMessageBuffer& _message;
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size_t _current_line_index;
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LogLevelType _level;
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LogDecorations &_decorations;
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void skip_messages_with_finer_level();
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public:
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Iterator(const LogMessageBuffer& message, LogLevelType level, LogDecorations& decorations)
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: _message(message), _current_line_index(0), _level(level), _decorations(decorations) {
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skip_messages_with_finer_level();
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}
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void operator++(int) {
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_current_line_index++;
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skip_messages_with_finer_level();
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}
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bool is_at_end() {
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return _current_line_index == _message._line_count;
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}
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const char* message() const {
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return _message._message_buffer + _message._lines[_current_line_index].message_offset;
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}
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const LogDecorations& decorations() {
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_decorations.set_level(_message._lines[_current_line_index].level);
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return _decorations;
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}
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};
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void reset();
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LogLevelType least_detailed_level() const {
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return _least_detailed_level;
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}
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Iterator iterator(LogLevelType level, LogDecorations& decorations) const {
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return Iterator(*this, level, decorations);
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}
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// Lines in LogMessageBuffers are not automatically prefixed based on tags
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// like regular simple messages (see LogPrefix.hpp for more about prefixes).
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// It is, however, possible to specify a prefix per LogMessageBuffer,
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// using set_prefix(). Lines added to the LogMessageBuffer after a prefix
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// function has been set will be prefixed automatically.
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// Setting this to NULL will disable prefixing.
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void set_prefix(size_t (*prefix_fn)(char*, size_t)) {
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_prefix_fn = prefix_fn;
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}
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ATTRIBUTE_PRINTF(3, 4)
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void write(LogLevelType level, const char* fmt, ...);
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ATTRIBUTE_PRINTF(3, 0)
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virtual void vwrite(LogLevelType level, const char* fmt, va_list args);
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#define LOG_LEVEL(level, name) \
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LogMessageBuffer& v##name(const char* fmt, va_list args) ATTRIBUTE_PRINTF(2, 0); \
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LogMessageBuffer& name(const char* fmt, ...) ATTRIBUTE_PRINTF(2, 3);
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LOG_LEVEL_LIST
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#undef LOG_LEVEL
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};
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#endif // SHARE_LOGGING_LOGMESSAGEBUFFER_HPP
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