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8202150: [REDO] Split globals.hpp to factor out the Flag class

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Factored out Flag out go globals, renamed to JVMFlag

Reviewed-by: coleenp, dholmes, kvn
This commit is contained in:
Gerard Ziemski 2018-04-26 11:19:05 -05:00
parent 4d841c90fb
commit edc81d17e1
66 changed files with 3060 additions and 2964 deletions
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67
src/hotspot/share/runtime/flags/jvmFlagWriteableList.hpp Normal file
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/*
* Copyright (c) 2015, 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_RUNTIME_JVMFLAGWRITEABLE_HPP
#define SHARE_VM_RUNTIME_JVMFLAGWRITEABLE_HPP
#include "utilities/growableArray.hpp"
class JVMFlagWriteable : public CHeapObj<mtArguments> {
public:
enum WriteableType {
// can be set without any limits
Always = 0,
// can only be set once, either via command lines or during runtime
Once = 1,
// can only be set on command line (multiple times allowed)
CommandLineOnly = 2
};
private:
const char* _name;
WriteableType _type;
bool _writeable;
bool _startup_done;
public:
// the "name" argument must be a string literal
JVMFlagWriteable(const char* name, WriteableType type) { _name=name; _type=type; _writeable=true; _startup_done=false; }
~JVMFlagWriteable() {}
const char* name() { return _name; }
const WriteableType type() { return _type; }
bool is_writeable(void);
void mark_once(void);
void mark_startup(void);
};
class JVMFlagWriteableList : public AllStatic {
static GrowableArray<JVMFlagWriteable*>* _controls;
public:
static void init();
static int length() { return (_controls != NULL) ? _controls->length() : 0; }
static JVMFlagWriteable* at(int i) { return (_controls != NULL) ? _controls->at(i) : NULL; }
static JVMFlagWriteable* find(const char* name);
static void add(JVMFlagWriteable* range) { _controls->append(range); }
static void mark_startup(void);
};
#endif // SHARE_VM_RUNTIME_JVMFLAGWRITEABLE_HPP