49 lines
1.2 KiB
C
49 lines
1.2 KiB
C
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/*
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* Copyright (C) 2015 The Android Open Source Project
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*
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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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#pragma once
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#include <stdatomic.h>
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#include <stdint.h>
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class Pointers {
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public:
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struct pointer_data {
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std::atomic_uintptr_t key_pointer;
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void* pointer;
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};
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explicit Pointers(size_t max_allocs);
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virtual ~Pointers();
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void Add(uintptr_t key_pointer, void* pointer);
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void* Remove(uintptr_t key_pointer);
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size_t max_pointers() { return max_pointers_; }
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void FreeAll();
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private:
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pointer_data* FindEmpty(uintptr_t key_pointer);
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pointer_data* Find(uintptr_t key_pointer);
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size_t GetHash(uintptr_t key_pointer);
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pointer_data* pointers_ = nullptr;
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size_t pointers_size_ = 0;
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size_t max_pointers_ = 0;
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};
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