/*
* Copyright ( c ) 2018 , 2020 , 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 .
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*/
#ifndef SHARE_GC_Z_ZTHREADLOCALDATA_HPP
#define SHARE_GC_Z_ZTHREADLOCALDATA_HPP
#include "gc/z/zMarkStack.hpp"
#include "gc/z/zGlobals.hpp"
#include "runtime/javaThread.hpp"
#include "utilities/debug.hpp"
#include "utilities/sizes.hpp"
class ZThreadLocalData {
private :
uintptr_t _address_bad_mask;
ZMarkThreadLocalStacks _stacks;
oop* _invisible_root;
ZThreadLocalData() :
_address_bad_mask(0 ),
_stacks(),
_invisible_root(NULL) {}
static ZThreadLocalData* data(Thread* thread) {
return thread->gc_data<ZThreadLocalData>();
}
public :
static void create(Thread* thread) {
new (data(thread)) ZThreadLocalData();
}
static void destroy(Thread* thread) {
data(thread)->~ZThreadLocalData();
}
static void set_address_bad_mask(Thread* thread, uintptr_t mask) {
data(thread)->_address_bad_mask = mask;
}
static ZMarkThreadLocalStacks* stacks(Thread* thread) {
return &data(thread)->_stacks;
}
static void set_invisible_root(Thread* thread, oop* root) {
assert(data(thread)->_invisible_root == NULL, "Already set" );
data(thread)->_invisible_root = root;
}
static void clear_invisible_root(Thread* thread) {
assert(data(thread)->_invisible_root != NULL, "Should be set" );
data(thread)->_invisible_root = NULL;
}
template <typename T>
static void do_invisible_root(Thread* thread, T f) {
if (data(thread)->_invisible_root != NULL) {
f(data(thread)->_invisible_root);
}
}
static ByteSize address_bad_mask_offset() {
return Thread::gc_data_offset() + byte_offset_of(ZThreadLocalData, _address_bad_mask);
}
static ByteSize nmethod_disarmed_offset() {
return address_bad_mask_offset() + in_ByteSize(ZAddressBadMaskHighOrderBitsOffset);
}
};
#endif // SHARE_GC_Z_ZTHREADLOCALDATA_HPP
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