src/hotspot/share/logging/logDiagnosticCommand.cpp
author pchilanomate
Tue, 05 Feb 2019 15:12:13 -0500
changeset 53646 043ae846819f
parent 47216 71c04702a3d5
permissions -rw-r--r--
8210832: Remove sneaky locking in class Monitor Summary: Removed sneaky locking and simplified vm monitors implementation Reviewed-by: rehn, dcubed, pliden, dholmes, coleenp Contributed-by: david.holmes@oracle.com, patricio.chilano.mateo@oracle.com
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/*
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 * Copyright (c) 2015, 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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#include "precompiled.hpp"
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#include "logging/logConfiguration.hpp"
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#include "logging/logDiagnosticCommand.hpp"
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#include "memory/resourceArea.hpp"
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#include "utilities/globalDefinitions.hpp"
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LogDiagnosticCommand::LogDiagnosticCommand(outputStream* output, bool heap_allocated)
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  : DCmdWithParser(output, heap_allocated),
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    _output("output", "The name or index (#<index>) of output to configure.", "STRING", false),
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    _output_options("output_options", "Options for the output.", "STRING", false),
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    _what("what", "Configures what tags to log.", "STRING", false),
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    _decorators("decorators", "Configures which decorators to use. Use 'none' or an empty value to remove all.", "STRING", false),
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    _disable("disable", "Turns off all logging and clears the log configuration.", "BOOLEAN", false),
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    _list("list", "Lists current log configuration.", "BOOLEAN", false),
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    _rotate("rotate", "Rotates all logs.", "BOOLEAN", false) {
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  _dcmdparser.add_dcmd_option(&_output);
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  _dcmdparser.add_dcmd_option(&_output_options);
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  _dcmdparser.add_dcmd_option(&_what);
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  _dcmdparser.add_dcmd_option(&_decorators);
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  _dcmdparser.add_dcmd_option(&_disable);
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  _dcmdparser.add_dcmd_option(&_list);
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  _dcmdparser.add_dcmd_option(&_rotate);
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}
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int LogDiagnosticCommand::num_arguments() {
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  ResourceMark rm;
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  LogDiagnosticCommand* dcmd = new LogDiagnosticCommand(NULL, false);
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  if (dcmd != NULL) {
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    DCmdMark mark(dcmd);
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    return dcmd->_dcmdparser.num_arguments();
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  } else {
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    return 0;
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  }
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}
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void LogDiagnosticCommand::registerCommand() {
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  uint32_t full_visibility = DCmd_Source_Internal | DCmd_Source_AttachAPI | DCmd_Source_MBean;
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  DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<LogDiagnosticCommand>(full_visibility, true, false));
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}
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void LogDiagnosticCommand::execute(DCmdSource source, TRAPS) {
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  bool any_command = false;
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  if (_disable.has_value()) {
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    LogConfiguration::disable_logging();
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    any_command = true;
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  }
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  if (_output.has_value() || _what.has_value() || _decorators.has_value()) {
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    if (!LogConfiguration::parse_log_arguments(_output.value(),
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                                               _what.value(),
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                                               _decorators.value(),
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                                               _output_options.value(),
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                                               output())) {
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      return;
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    }
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    any_command = true;
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  }
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  if (_list.has_value()) {
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    LogConfiguration::describe(output());
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    any_command = true;
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  }
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  if (_rotate.has_value()) {
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    LogConfiguration::rotate_all_outputs();
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    any_command = true;
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  }
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  if (!any_command) {
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    // If no argument was provided, print usage
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    print_help(LogDiagnosticCommand::name());
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  }
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}