mirror of
https://github.com/openharmony/ark_runtime_core.git
synced 2026-07-18 18:24:30 -04:00
Ilya Trubachev
78 lines
2.3 KiB
C++
78 lines
2.3 KiB
C++
/*
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* Copyright (c) 2021-2022 Huawei Device Co., Ltd.
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef PANDA_RUNTIME_OBJECT_HEADER_CONFIG_H_
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#define PANDA_RUNTIME_OBJECT_HEADER_CONFIG_H_
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#include <cstdint>
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#include <cstdlib>
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#include "libpandabase/mem/mem.h"
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namespace panda {
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using array_size_t = uint32_t;
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using array_ssize_t = int32_t;
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class MarkWord;
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template <size_t PSIZE>
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class LowEndConfig;
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template <size_t PSIZE>
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class HighEndConfig;
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// For now this value is hardcoded:
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#define HIGHENDSYSTEM
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// We have possible 2 variants of configuration - for High-end devices and for Low-end devices
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#ifdef HIGHENDSYSTEM
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using MemoryModelConfig = HighEndConfig<OBJECT_POINTER_SIZE>;
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#else
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using MemoryModelConfig = LowEndConfig<OBJECT_POINTER_SIZE>;
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#endif
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// Config for High-end devices with hash stored inside object header and 32 bits pointer
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template <>
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class HighEndConfig<sizeof(uint32_t)> {
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public:
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using Size = uint32_t;
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static constexpr Size BITS = 32U;
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static constexpr Size LOCK_THREADID_SIZE = 13U;
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static constexpr bool IS_HASH_IN_OBJ_HEADER = true;
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};
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// Config for High-end devices with hash stored inside object header and 64 bits pointer
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template <>
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class HighEndConfig<sizeof(uint64_t)> {
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public:
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using Size = uint64_t;
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static constexpr Size BITS = 64UL;
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static constexpr Size LOCK_THREADID_SIZE = 29UL;
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static constexpr bool IS_HASH_IN_OBJ_HEADER = true;
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};
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// Config for Low-end devices with hash stored inside object header and 32 bits pointer
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template <>
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class LowEndConfig<sizeof(uint32_t)> {
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public:
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using Size = uint16_t;
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static constexpr Size BITS = 16U;
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static constexpr Size LOCK_THREADID_SIZE = 7U;
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static constexpr bool IS_HASH_IN_OBJ_HEADER = true;
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};
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} // namespace panda
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#endif // PANDA_RUNTIME_OBJECT_HEADER_CONFIG_H_
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