author | eosterlund |
Tue, 12 Nov 2019 20:01:23 +0000 | |
changeset 59038 | b9a42ca342db |
parent 58066 | 8407928b9fe5 |
child 58679 | 9c3209ff7550 |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 2018, 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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#ifndef SHARE_GC_Z_ZTHREADLOCALDATA_HPP |
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#define SHARE_GC_Z_ZTHREADLOCALDATA_HPP |
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#include "gc/z/zMarkStack.hpp" |
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#include "gc/z/zGlobals.hpp" |
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#include "runtime/thread.hpp" |
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#include "utilities/debug.hpp" |
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#include "utilities/sizes.hpp" |
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class ZThreadLocalData { |
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private: |
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uintptr_t _address_bad_mask; |
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ZMarkThreadLocalStacks _stacks; |
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oop* _invisible_root; |
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ZThreadLocalData() : |
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_address_bad_mask(0), |
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_stacks(), |
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_invisible_root(NULL) {} |
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static ZThreadLocalData* data(Thread* thread) { |
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return thread->gc_data<ZThreadLocalData>(); |
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} |
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public: |
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static void create(Thread* thread) { |
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new (data(thread)) ZThreadLocalData(); |
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} |
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static void destroy(Thread* thread) { |
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data(thread)->~ZThreadLocalData(); |
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} |
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static void set_address_bad_mask(Thread* thread, uintptr_t mask) { |
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data(thread)->_address_bad_mask = mask; |
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} |
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static ZMarkThreadLocalStacks* stacks(Thread* thread) { |
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return &data(thread)->_stacks; |
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} |
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static void set_invisible_root(Thread* thread, oop* root) { |
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assert(data(thread)->_invisible_root == NULL, "Already set"); |
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data(thread)->_invisible_root = root; |
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} |
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static void clear_invisible_root(Thread* thread) { |
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assert(data(thread)->_invisible_root != NULL, "Should be set"); |
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data(thread)->_invisible_root = NULL; |
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} |
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template <typename T> |
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static void do_invisible_root(Thread* thread, T f) { |
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if (data(thread)->_invisible_root != NULL) { |
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f(data(thread)->_invisible_root); |
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} |
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} |
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static ByteSize address_bad_mask_offset() { |
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return Thread::gc_data_offset() + byte_offset_of(ZThreadLocalData, _address_bad_mask); |
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} |
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static ByteSize nmethod_disarmed_offset() { |
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return address_bad_mask_offset() + in_ByteSize(ZNMethodDisarmedOffset); |
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} |
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}; |
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#endif // SHARE_GC_Z_ZTHREADLOCALDATA_HPP |