67 lines
2.1 KiB
C++
67 lines
2.1 KiB
C++
/*
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* Copyright (C) 2016 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 <stdint.h>
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#include <sys/types.h>
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#include <unistd.h>
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#include <memory>
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#include <string>
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namespace unwindstack {
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class MemoryCacheBase;
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class Memory {
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public:
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Memory() = default;
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virtual ~Memory() = default;
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static std::shared_ptr<Memory> CreateProcessMemory(pid_t pid);
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static std::shared_ptr<Memory> CreateProcessMemoryCached(pid_t pid);
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static std::shared_ptr<Memory> CreateProcessMemoryThreadCached(pid_t pid);
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static std::shared_ptr<Memory> CreateOfflineMemory(const uint8_t* data, uint64_t start,
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uint64_t end);
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static std::unique_ptr<Memory> CreateFileMemory(const std::string& path, uint64_t offset,
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uint64_t size = UINT64_MAX);
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virtual MemoryCacheBase* AsMemoryCacheBase() { return nullptr; }
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virtual bool ReadString(uint64_t addr, std::string* dst, size_t max_read);
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virtual void Clear() {}
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// Get pointer to directly access the data for buffers that support it.
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virtual uint8_t* GetPtr(size_t /*addr*/ = 0) { return nullptr; }
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virtual size_t Read(uint64_t addr, void* dst, size_t size) = 0;
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virtual long ReadTag(uint64_t) { return -1; }
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bool ReadFully(uint64_t addr, void* dst, size_t size);
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inline bool Read32(uint64_t addr, uint32_t* dst) {
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return ReadFully(addr, dst, sizeof(uint32_t));
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}
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inline bool Read64(uint64_t addr, uint64_t* dst) {
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return ReadFully(addr, dst, sizeof(uint64_t));
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}
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};
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} // namespace unwindstack
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