121 lines
4.6 KiB
C++
121 lines
4.6 KiB
C++
/*
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* s3fs - FUSE-based file system backed by Amazon S3
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*
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* Copyright(C) 2007 Randy Rizun <rrizun@gmail.com>
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*/
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#ifndef S3FS_FILETIMES_H_
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#define S3FS_FILETIMES_H_
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#include <cstdint>
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#include <string>
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#include <sys/stat.h>
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//-------------------------------------------------------------------
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// Utility for stat time type
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//-------------------------------------------------------------------
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enum class stat_time_type : uint8_t {
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ATIME,
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MTIME,
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CTIME
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};
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//-------------------------------------------------------------------
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// Utility Functions for timespecs
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//-------------------------------------------------------------------
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bool valid_timespec(const struct timespec& ts);
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constexpr int compare_timespec(const struct timespec& ts1, const struct timespec& ts2);
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int compare_timespec(const struct stat& st, stat_time_type type, const struct timespec& ts);
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void set_timespec_to_stat(struct stat& st, stat_time_type type, const struct timespec& ts);
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struct timespec* set_stat_to_timespec(const struct stat& st, stat_time_type type, struct timespec& ts);
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std::string str_stat_time(const struct stat& st, stat_time_type type);
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struct timespec* s3fs_realtime(struct timespec& ts);
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std::string s3fs_str_realtime();
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//-------------------------------------------------------------------
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// FileTimes Class
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//-------------------------------------------------------------------
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// [NOTE]
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// In this class, UTIME_OMIT is set when initializing or clearing
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// internal data.
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// Also, if UTIME_NOW is specified, the value will be corrected to
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// the current time and maintained.
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//
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class FileTimes
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{
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private:
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struct timespec ft_ctime; // Change time
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struct timespec ft_atime; // Access time
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struct timespec ft_mtime; // Modification time
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private:
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void Clear(stat_time_type type);
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const struct timespec& GetTime(stat_time_type type) const;
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void GetTime(stat_time_type type, struct timespec& time) const;
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void SetTime(stat_time_type type, struct timespec time);
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bool IsOmit(stat_time_type type) const;
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public:
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explicit FileTimes() : ft_ctime{0, UTIME_OMIT}, ft_atime{0, UTIME_OMIT}, ft_mtime{0, UTIME_OMIT} {}
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// Clear
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void Clear();
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void ClearCTime() { Clear(stat_time_type::CTIME); }
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void ClearATime() { Clear(stat_time_type::ATIME); }
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void ClearMTime() { Clear(stat_time_type::MTIME); }
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// Get value
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const struct timespec& ctime() const { return GetTime(stat_time_type::CTIME); }
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const struct timespec& atime() const { return GetTime(stat_time_type::ATIME); }
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const struct timespec& mtime() const { return GetTime(stat_time_type::MTIME); }
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void GetCTime(struct timespec& time) const { GetTime(stat_time_type::CTIME, time); }
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void GetATime(struct timespec& time) const { GetTime(stat_time_type::ATIME, time); }
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void GetMTime(struct timespec& time) const { GetTime(stat_time_type::MTIME, time); }
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void ReflectFileTimes(struct stat& st) const;
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// Set value
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void SetCTime(struct timespec time) { SetTime(stat_time_type::CTIME, time); }
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void SetATime(struct timespec time) { SetTime(stat_time_type::ATIME, time); }
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void SetMTime(struct timespec time) { SetTime(stat_time_type::MTIME, time); }
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void SetAllNow();
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void SetAll(const struct stat& stbuf, bool no_omit = true);
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void SetAll(struct timespec ts_ctime, struct timespec ts_atime, struct timespec ts_mtime, bool no_omit = true);
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void SetAll(const FileTimes& other, bool no_omit = true);
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// Check
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bool IsOmitCTime() const { return IsOmit(stat_time_type::CTIME); }
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bool IsOmitATime() const { return IsOmit(stat_time_type::ATIME); }
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bool IsOmitMTime() const { return IsOmit(stat_time_type::MTIME); }
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};
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#endif // S3FS_FILETIMES_H_
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/*
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* Local variables:
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* tab-width: 4
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* c-basic-offset: 4
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* End:
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* vim600: expandtab sw=4 ts=4 fdm=marker
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* vim<600: expandtab sw=4 ts=4
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*/
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