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Various cleanups for Dynarr code, from Unicode-internal ws dynarr.c: Add comment explaining Dynarr_largest() use. dynarr.c: In Dynarr_insert_many(), don't call Dynarr_resize() unless we actually need to resize, and note that an assert() that we are inserting at or below the current end could be wrong if code wants to access stuff between `len' and `largest'. dynarr.c: Don't just Dynarr_resize() to the right size; instead use Dynarr_reset() then Dynarr_add_many(), so that the 'len' and 'largest' and such get set properly. dynarr.c, faces.c, gutter.c, lisp.h, lread.c, lrecord.h, redisplay-output.c, redisplay.c: Rename Dynarr member 'cur' to 'len' since it's the length of the dynarr, not really a pointer to a "current insertion point". Use type_checking_assert() instead of just assert() in some places. Add additional assertions (Dynarr_verify*()) to check that we're being given positions within range. Use them in Dynarr_at, Dynarr_atp, etc. New Dynarr_atp_allow_end() for retrieving a pointer to a position that might be the element past the last one. New Dynarr_past_lastp() to retrieve a pointer to the position past the last one, using Dynarr_atp_allow_end(). Change code appropriately to use it. Rename Dynarr_end() to Dynarr_lastp() (pointer to the last element) for clarity, and change code appropriately to use it. Change code appropriately to use Dynarr_begin(). Rewrite Dynarr_add_many(). New version can accept a NULL pointer to mean "reserve space but don't put anything in it". Used by stack_like_malloc().
author Ben Wing <ben@xemacs.org>
date Wed, 13 Jan 2010 04:07:42 -0600
parents 6bade5a5afc0
children 308d34e9f07d
line wrap: on
line source

/*
   Copyright (C) 1995 Free Software Foundation, Inc.
   Copyright (C) 2000 Ben Wing.

This file is part of XEmacs.

XEmacs 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.

XEmacs 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 XEmacs; see the file COPYING.  If not, write to
the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA.  */

/* Synched up with: Not really in FSF. */

#ifndef INCLUDED_sysdir_h_
#define INCLUDED_sysdir_h_

#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif

#ifdef SYSV_SYSTEM_DIR
# define select select_ /* Shadowing yuck */
# include <dirent.h>
# undef select
#elif defined (WIN32_NATIVE)
# include <direct.h>
# include "ndir.h"
#elif defined (NONSYSTEM_DIR_LIBRARY)
# include "ndir.h"
#else
# include <sys/dir.h>
#endif /* not NONSYSTEM_DIR_LIBRARY */

#ifdef SYSV_SYSTEM_DIR
# define DIRENTRY struct dirent
#else /* not SYSV_SYSTEM_DIR */
# define DIRENTRY struct direct
#endif

/* The d_nameln member of a struct dirent includes the '\0' character
   on some systems, but not on others.  What's worse, you can't tell
   at compile-time which one it will be, since it really depends on
   the sort of system providing the filesystem you're reading from,
   not the system you are running on.  Paul Eggert
   <eggert@bi.twinsun.com> says this occurs when Emacs is running on a
   SunOS 4.1.2 host, reading a directory that is remote-mounted from a
   Solaris 2.1 host and is in a native Solaris 2.1 filesystem.

   (and Solaris 2 doesn't have a d_nameln member at all!  Posix.1
   doesn't specify it -- mrb)

   Since applying strlen to the name always works, we'll just do that.  */
#define NAMLEN(p) strlen (p->d_name)

# define DIRENTRY_NONEMPTY(p) ((p)->d_ino)

/* encapsulation: directory calls */

int qxe_chdir (const Ibyte *path);
int qxe_mkdir (const Ibyte *path, mode_t mode);
DIR *qxe_opendir (const Ibyte *filename);
DIRENTRY *qxe_readdir (DIR *dirp);
int qxe_closedir (DIR *dirp);
int qxe_rmdir (const Ibyte *path);

Ibyte *qxe_allocating_getcwd (void);

#endif /* INCLUDED_sysdir_h_ */