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- /*
-
- Copyright (C) 1996 John W. Eaton
-
- This file is part of Octave.
-
- Octave is free software; you can redistribute it and/or modify it
- under the terms of the GNU General Public License as published by the
- Free Software Foundation; either version 2, or (at your option) any
- later version.
-
- Octave is distributed in the hope that it will be useful, but WITHOUT
- ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
- for more details.
-
- You should have received a copy of the GNU General Public License
- along with Octave; see the file COPYING. If not, write to the Free
- Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
-
- */
-
- #if !defined (octave_file_ops_h)
- #define octave_file_ops_h 1
-
- #include <string>
-
- #ifdef HAVE_SYS_TYPES_H
- #include <sys/types.h>
- #endif
-
- class
- file_stat
- {
- public:
-
- file_stat (const string& n = string (), bool fl = true)
- : file_name (n), follow_links (fl), initialized (false)
- {
- if (! file_name.empty ())
- update_internal ();
- }
-
- file_stat (const file_stat& f) { copy (f); }
-
- file_stat& operator = (const file_stat& f)
- {
- if (this != &f)
- copy (f);
-
- return *this;
- }
-
- ~file_stat (void) { }
-
- void get_stats (bool force = false)
- {
- if (! initialized || force)
- update_internal (force);
- }
-
- void get_stats (const string& n, bool force = false)
- {
- if (n != file_name || ! initialized || force)
- {
- initialized = false;
-
- file_name = n;
-
- update_internal (force);
- }
- }
-
- // File status and info. These should only be called for objects
- // that are already properly initialized.
-
- bool is_blk (void) const;
- bool is_chr (void) const;
- bool is_dir (void) const;
- bool is_fifo (void) const;
- bool is_lnk (void) const;
- bool is_reg (void) const;
- bool is_sock (void) const;
-
- ino_t ino (void) const { return fs_ino; }
- dev_t dev (void) const { return fs_dev; }
-
- nlink_t nlink (void) const { return fs_nlink; }
-
- uid_t uid (void) const { return fs_uid; }
- gid_t gid (void) const { return fs_gid; }
-
- off_t size (void) const { return fs_size; }
-
- time_t atime (void) const { return fs_atime; }
- time_t mtime (void) const { return fs_mtime; }
- time_t ctime (void) const { return fs_ctime; }
-
- #if defined (HAVE_ST_RDEV)
- dev_t rdev (void) const { return fs_rdev; }
- #endif
-
- #if defined (HAVE_ST_BLKSIZE)
- long blksize (void) const { return fs_blksize; }
- #endif
-
- #if defined (HAVE_ST_BLOCKS)
- long blocks (void) const { return fs_blocks; }
- #endif
-
- string mode_as_string (void) const;
-
- bool ok (void) const { return initialized && ! fail; }
-
- operator void* () const { return ok () ? (void *) -1 : (void *) 0; }
-
- bool exists (void) const { return ok (); }
-
- string error (void) const { return ok () ? string () : errmsg; }
-
- // Has the file referenced by this object been modified since TIME?
- bool is_newer (time_t time) const { return fs_mtime > time; }
-
- private:
-
- // Name of the file.
- string file_name;
-
- // TRUE means follow symbolic links to the ultimate file (stat).
- // FALSE means get information about the link itself (lstat).
- bool follow_links;
-
- // TRUE means we have already called stat.
- bool initialized;
-
- // TRUE means the stat for this file failed.
- bool fail;
-
- // If a failure occurs, this contains the system error text.
- string errmsg;
-
- // file type and permissions
- mode_t fs_mode;
-
- // serial number
- ino_t fs_ino;
-
- // device number
- dev_t fs_dev;
-
- // number of links
- nlink_t fs_nlink;
-
- // user ID of owner
- uid_t fs_uid;
-
- // group ID of owner
- gid_t fs_gid;
-
- // size in bytes, for regular files
- off_t fs_size;
-
- // time of last access
- time_t fs_atime;
-
- // time of last modification
- time_t fs_mtime;
-
- // time of last file status change
- time_t fs_ctime;
-
- #if defined (HAVE_ST_RDEV)
- // device number for special files
- dev_t fs_rdev;
- #endif
-
- #if defined (HAVE_ST_BLKSIZE)
- // best I/O block size
- long fs_blksize;
- #endif
-
- #if defined (HAVE_ST_BLOCKS)
- // number of 512-byte blocks allocated
- long fs_blocks;
- #endif
-
- void update_internal (bool force = false);
-
- void copy (const file_stat&);
- };
-
- extern int is_newer (const string&, time_t);
-
- extern int oct_mkdir (const string&, mode_t);
- extern int oct_mkdir (const string&, mode_t, string&);
-
- extern int oct_mkfifo (const string&, mode_t);
- extern int oct_mkfifo (const string&, mode_t, string&);
-
- extern int oct_rename (const string&, const string&);
- extern int oct_rename (const string&, const string&, string&);
-
- extern int oct_rmdir (const string&);
- extern int oct_rmdir (const string&, string&);
-
- extern string oct_tempnam (void);
-
- extern int oct_umask (mode_t);
-
- extern int oct_unlink (const string&);
- extern int oct_unlink (const string&, string&);
-
- #endif
-
- /*
- ;;; Local Variables: ***
- ;;; mode: C++ ***
- ;;; End: ***
- */
-