/*
* 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
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*/
#ifndef SHARE_VM_LOGGING_LOGSTREAM_INLINE_HPP
#define SHARE_VM_LOGGING_LOGSTREAM_INLINE_HPP
#include "logging/log.hpp"
#include "logging/logStream.hpp"
#include "memory/resourceArea.hpp"
#include "utilities/ostream.hpp"
inline void LogStreamNoResourceMark::write(const char* s, size_t len) {
if (len > 0 && s[len - 1] == '\n') {
_current_line.write(s, len - 1);
_tagset->write(_level, "%s", _current_line.as_string());
_current_line.reset();
} else {
_current_line.write(s, len);
}
update_position(s, len);
}
// An output stream that logs to the logging framework, and embeds a ResourceMark.
//
// The class is intended to be stack allocated.
// Care needs to be taken when nested ResourceMarks are used.
class LogStream : public outputStream {
private:
ResourceMark _embedded_resource_mark;
LogStreamNoResourceMark _stream;
public:
// Constructor to support creation from a LogTarget instance.
//
// LogTarget(Debug, gc) log;
// LogStream(log) stream;
template <LogLevelType level, LogTagType T0, LogTagType T1, LogTagType T2, LogTagType T3, LogTagType T4, LogTagType GuardTag>
LogStream(const LogTargetImpl<level, T0, T1, T2, T3, T4, GuardTag>& type_carrier) :
_embedded_resource_mark(),
_stream(level, &LogTagSetMapping<T0, T1, T2, T3, T4>::tagset()) {}
// Constructor to support creation from typed (likely NULL) pointer. Mostly used by the logging framework.
//
// LogStream stream(log.debug());
// LogStream stream((LogTargetImpl<level, T0, T1, T2, T3, T4, GuardTag>*)NULL);
template <LogLevelType level, LogTagType T0, LogTagType T1, LogTagType T2, LogTagType T3, LogTagType T4, LogTagType GuardTag>
LogStream(const LogTargetImpl<level, T0, T1, T2, T3, T4, GuardTag>* type_carrier) :
_embedded_resource_mark(),
_stream(level, &LogTagSetMapping<T0, T1, T2, T3, T4>::tagset()) {}
// Override of outputStream::write.
void write(const char* s, size_t len) { _stream.write(s, len); }
};
// Support creation of a LogStream without having to provide a LogTarget pointer.
#define LogStreamHandle(level, ...) LogStreamTemplate<LogLevel::level, LOG_TAGS(__VA_ARGS__)>
template <LogLevelType level, LogTagType T0, LogTagType T1, LogTagType T2, LogTagType T3, LogTagType T4, LogTagType GuardTag>
class LogStreamTemplate : public LogStream {
public:
LogStreamTemplate() : LogStream((LogTargetImpl<level, T0, T1, T2, T3, T4, GuardTag>*)NULL) {}
};
#endif // SHARE_VM_LOGGING_LOGSTREAM_INLINE_HPP