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// Copyright 2024 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef CHROME_BROWSER_ASH_CHROMEBOX_FOR_MEETINGS_ARTEMIS_LOG_FILE_H_
#define CHROME_BROWSER_ASH_CHROMEBOX_FOR_MEETINGS_ARTEMIS_LOG_FILE_H_
#include <fstream>
#include <string>
#include "base/files/file_path.h"
namespace ash::cfm {
// This is an log file abstraction that is used by a LogSource object.
// LogSources that represent a file that can be rotated will track one
// LogFile per rotated file.
class LogFile {
public:
explicit LogFile(const std::string& filepath);
~LogFile();
LogFile(const LogFile&) = delete;
LogFile& operator=(const LogFile&) = delete;
const std::string& GetFilePath() const;
bool OpenAtOffset(std::streampos offset);
void CloseStream();
std::streampos GetCurrentOffset();
bool IsInFailState() const;
bool IsAtEOF() const;
bool IsOpen() const;
bool Refresh();
std::vector<std::string> RetrieveNextLogs(size_t line_count,
size_t max_byte_limit);
private:
bool is_open_ = false;
const base::FilePath filepath_;
std::ifstream file_stream_;
std::streampos last_read_offset_;
};
} // namespace ash::cfm
#endif // CHROME_BROWSER_ASH_CHROMEBOX_FOR_MEETINGS_ARTEMIS_LOG_FILE_H_
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