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// Copyright 2025 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef NET_DISK_CACHE_BASIC_CACHE_FILE_H_
#define NET_DISK_CACHE_BASIC_CACHE_FILE_H_
#include <optional>
#include "base/containers/span.h"
#include "base/files/file.h"
#include "net/base/net_export.h"
#include "net/disk_cache/cache_file.h"
namespace disk_cache {
// Default implementation of `CacheFile` that wraps a `base::File`.
// Delegates operations directly to it.
class NET_EXPORT BasicCacheFile : public CacheFile {
public:
explicit BasicCacheFile(base::File file);
~BasicCacheFile() override;
bool IsValid() const override;
base::File::Error error_details() const override;
std::optional<size_t> Read(int64_t offset, base::span<uint8_t> data) override;
std::optional<size_t> Write(int64_t offset,
base::span<const uint8_t> data) override;
bool GetInfo(base::File::Info* file_info) override;
int64_t GetLength() override;
bool SetLength(int64_t length) override;
bool ReadAndCheck(int64_t offset, base::span<uint8_t> data) override;
bool WriteAndCheck(int64_t offset, base::span<const uint8_t> data) override;
private:
base::File file_;
};
} // namespace disk_cache
#endif // NET_DISK_CACHE_BASIC_CACHE_FILE_H_
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