Files
nearby/internal/platform/implementation/linux/file.h
T
Timothy Hutchins ff9438a3ed Started implementing Linux specific platform
This is the start of the implementing for the Linux platform.

I aim to make this as similar to the Windows platform as possible,
although due to the fundamental difference in the two OS's, there will
be things that need to be different.
As such, I will be using the Windows platform files as a base, and
reimplementing the functions with Linux equivalents.

I am sure this will have bugs, which by my best attempt will be fixed
when found.
2023-05-19 19:19:15 -05:00

61 lines
1.8 KiB
C++

// Copyright 2020 Google LLC
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// https://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#ifndef PLATFORM_IMPL_LINUX_FILE_H_
#define PLATFORM_IMPL_LINUX_FILE_H_
#include <cstdint>
#include <fstream>
#include <memory>
#include <string>
#include "absl/strings/string_view.h"
#include "internal/platform/exception.h"
#include "internal/platform/implementation/input_file.h"
#include "internal/platform/implementation/output_file.h"
namespace nearby {
namespace linux {
class IOFile final : public api::InputFile, public api::OutputFile {
public:
static std::unique_ptr<IOFile> CreateInputFile(
const absl::string_view file_path, size_t size);
static std::unique_ptr<IOFile> CreateOutputFile(const absl::string_view path);
ExceptionOr<ByteArray> Read(std::int64_t size) override;
std::string GetFilePath() const override { return path_; }
std::int64_t GetTotalSize() const override { return total_size_; }
Exception Close() override;
Exception Write(const ByteArray& data) override;
Exception Flush() override;
private:
explicit IOFile(const absl::string_view file_path, size_t size);
explicit IOFile(const absl::string_view file_path);
std::fstream file_;
std::string path_;
std::int64_t total_size_;
};
} // namespace linux
} // namespace nearby
#endif // PLATFORM_IMPL_LINUX_FILE_H_