94 lines
2.6 KiB
C++
94 lines
2.6 KiB
C++
// Copyright (C) 2021 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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#pragma once
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#include <sys/types.h>
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#include <cstdint>
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#include <memory>
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#include <random>
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#include <vector>
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#include <ditto/instruction.h>
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namespace dittosuite {
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class ReadWriteFile : public Instruction {
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public:
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explicit ReadWriteFile(SyscallInterface& syscall, const std::string& name, int repeat,
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int64_t size, int64_t block_size, int64_t starting_offset,
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Order access_order, uint32_t seed, Reseeding reseeding, int input_fd_key);
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std::unique_ptr<Result> CollectResults(const std::string& prefix) override;
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protected:
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virtual void SetUpSingle() override;
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virtual void RunSingle() override;
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void TearDownSingle() override;
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BandwidthSampler bandwidth_sampler_;
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int64_t size_;
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int64_t block_size_;
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int64_t starting_offset_;
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Order access_order_;
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std::mt19937_64 gen_;
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uint64_t seed_;
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Reseeding reseeding_;
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int input_fd_key_;
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bool update_size_;
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bool update_block_size_;
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struct Unit {
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int64_t count;
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int64_t offset;
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};
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std::vector<Unit> units_;
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std::unique_ptr<char[]> buffer_;
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private:
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void SetUp() override;
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};
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class WriteFile : public ReadWriteFile {
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public:
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inline static const std::string kName = "write_file";
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explicit WriteFile(SyscallInterface& syscall, int repeat, int64_t size, int64_t block_size,
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int64_t starting_offset, Order access_order, uint32_t seed,
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Reseeding reseeding, bool fsync, int input_fd_key);
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private:
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void RunSingle() override;
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bool fsync_;
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};
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class ReadFile : public ReadWriteFile {
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public:
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inline static const std::string kName = "read_file";
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explicit ReadFile(SyscallInterface& syscall, int repeat, int64_t size, int64_t block_size,
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int64_t starting_offset, Order access_order, uint32_t seed, Reseeding reseeding,
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int fadvise, int input_fd_key);
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private:
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void SetUpSingle() override;
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void RunSingle() override;
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int fadvise_;
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};
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} // namespace dittosuite
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