// Copyright 2015 The Chromium OS Authors. All rights reserved.
|
// Use of this source code is governed by a BSD-style license that can be
|
// found in the LICENSE file.
|
|
#ifndef _BSDIFF_FILE_H_
|
#define _BSDIFF_FILE_H_
|
|
#include <memory>
|
|
#include "bsdiff/file_interface.h"
|
|
namespace bsdiff {
|
|
class File : public FileInterface {
|
public:
|
// Opens a file |pathname| with flags |flags| as defined by open(2). In case
|
// of error, an empty unique_ptr is returned and errno is set accordingly.
|
static std::unique_ptr<File> FOpen(const char* pathname, int flags);
|
|
~File() override;
|
|
// FileInterface overrides.
|
bool Read(void* buf, size_t count, size_t* bytes_read) override;
|
bool Write(const void* buf, size_t count, size_t* bytes_written) override;
|
bool Seek(off_t pos) override;
|
bool Close() override;
|
bool GetSize(uint64_t* size) override;
|
|
private:
|
// Creates the File instance for the |fd|. Takes ownership of the file
|
// descriptor.
|
explicit File(int fd);
|
|
int fd_;
|
};
|
|
} // namespace bsdiff
|
|
#endif // _BSDIFF_FILE_H_
|
