Alias for uid_t. Alias to uid_t system type.

Alias to stat system type.

Alias for gid_t. Alias to gid_t system type.

Alias to dev_t system type.

Alias to off_t system type.

File status class that wraps stat system type.

Base classes

• public stat_type

Types

• using nlink_type = ::nlink_t

  Hard link count type (integer).

• using block_count_type = ::blkcnt_t

  Block count type (integer).

• using block_size_type = ::blksize_t

  Block size type (integer).

• using time_point = clock_type::time_point

  Clock time point type.

• using clock_type = std::chrono::system_clock

  Clock type used in the methods of this class.

Methods

• last_status_changed() const -> time_point

  Get time of last status change.

• last_modified() const -> time_point

  Get time of last modification.

• last_accessed() const -> time_point

  Get time of last access.

• update(fd_type fd) -> file_status &

  Get file status for file descriptor fd.

  bad_call

  
  

  Return

  reference to this object

  See

  stat(2)

• update(const char * filename, path_flag flags = path_flag(0)) -> file_status &

  Get file status for file filename.

  bad_call

  
  

  • Throws exception, if the file does not exist.
  • Use path_flag::no_follow to not throw exception on dangling symbolic links.

  Return

  reference to this object

  See

  stat(2)

  See

  std::errc

• update(fd_type dir, const char * filename, path_flag flags = path_flag(0)) -> file_status &

  Get file status for file filename located in directory specified by file descriptor dir.

  bad_call

  
  

  • Throws exception, if the file does not exist.
  • Use path_flag::no_follow to not throw exception on dangling symbolic links.

  Return

  reference to this object

  See

  stat(2)

  See

  std::errc

• exists() const -> bool

  Return true, if the file exists.

• group() const -> gid_type

  Get ID of the group that owns the file.

• owner() const -> uid_type

  Get ID of the user that owns the file.

• mode() const -> file_mode

  Get file mode bits.

• num_links() const -> nlink_type

  Get the number of hard links.

• this_device() const -> device_type

  Get device ID (if the file is a device).

• device() const -> device_type

  Get ID of the device that contains the file.

• num_blocks() const -> block_count_type

  Get the number of 512 byte blocks allocated for the file.

• preferred_block_size() const -> block_size_type

  Get preferred block size in bytes.

• block_size() const -> block_size_type

  Get file block size in bytes.

• size() const -> offset_type

  Get file size in bytes.

• is_pipe() const -> bool

  Returns true, if file is a pipe.

• is_character_device() const -> bool

  Returns true, if file is a character device.

• is_directory() const -> bool

  Returns true, if file is a directory.

• is_block_device() const -> bool

  Returns true, if file is a block device.

• is_symbolic_link() const -> bool

  Returns true, if file is a symbolic link.

• is_socket() const -> bool

  Returns true, if file is a unix domain socket.

• is_regular() const -> bool

  Returns true, if file is regular.

• type() const -> file_type

  Get file type.

• file_status(fd_type fd)explicit

  Construct file status for file descriptor fd.

• file_status(fd_type dir, const char * filename, path_flag flags = path_flag(0))

  Construct file status for file filename located in directory specified by file descriptor dir.

• file_status(const char * filename, path_flag flags = path_flag(0))explicit

  Construct file status for file filename.

• file_status()

Friends

• operator<<

  Print file status for debugging (the format is similar to ls(1)).

Print file status for debugging (the format is similar to ls(1)).