view lib-src/make-dump-id.c @ 5168:cf900a2f1fa3

extract gap array from extents.c, use in range tables -------------------- ChangeLog entries follow: -------------------- src/ChangeLog addition: 2010-03-22 Ben Wing <ben@xemacs.org> * Makefile.in.in (objs): * array.c: * array.c (gap_array_adjust_markers): * array.c (gap_array_move_gap): * array.c (gap_array_make_gap): * array.c (gap_array_insert_els): * array.c (gap_array_delete_els): * array.c (gap_array_make_marker): * array.c (gap_array_delete_marker): * array.c (gap_array_delete_all_markers): * array.c (gap_array_clone): * array.h: * depend: * emacs.c (main_1): * extents.c: * extents.c (EXTENT_GAP_ARRAY_AT): * extents.c (extent_list_num_els): * extents.c (extent_list_locate): * extents.c (extent_list_at): * extents.c (extent_list_delete_all): * extents.c (allocate_extent_list): * extents.c (syms_of_extents): * extents.h: * extents.h (XEXTENT_LIST_MARKER): * lisp.h: * rangetab.c: * rangetab.c (mark_range_table): * rangetab.c (print_range_table): * rangetab.c (range_table_equal): * rangetab.c (range_table_hash): * rangetab.c (verify_range_table): * rangetab.c (get_range_table_pos): * rangetab.c (Fmake_range_table): * rangetab.c (Fcopy_range_table): * rangetab.c (Fget_range_table): * rangetab.c (put_range_table): * rangetab.c (Fclear_range_table): * rangetab.c (Fmap_range_table): * rangetab.c (unified_range_table_bytes_needed): * rangetab.c (unified_range_table_copy_data): * rangetab.c (unified_range_table_lookup): * rangetab.h: * rangetab.h (struct range_table_entry): * rangetab.h (struct Lisp_Range_Table): * rangetab.h (rangetab_gap_array_at): * symsinit.h: Rename dynarr.c to array.c. Move gap array from extents.c to array.c. Extract dynarr, gap array and stack-like malloc into new file array.h. Rename GAP_ARRAY_NUM_ELS -> gap_array_length(). Add gap_array_at(), gap_array_atp(). Rewrite range table code to use gap arrays. Make put_range_table() smarter so that its operation is O(log n) for adding a localized range. * gc.c (lispdesc_block_size_1): Don't ABORT() when two elements are located at the same place. This will happen with a size-0 gap array -- both parts of the array (before and after gap) are in the same place.
author Ben Wing <ben@xemacs.org>
date Mon, 22 Mar 2010 19:12:15 -0500
parents ecf1ebac70d8
children 308d34e9f07d
line wrap: on
line source

/* Generate a unique dump-id for use with the portable dumper.
   Copyright (C) 2000 Olivier Galibert, Martin Buchholz

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.  */

#include <config.h>
#include <stdio.h>
#include <stdlib.h>
#include "../src/systime.h"

#ifdef WIN32_NATIVE
#include <sys/timeb.h>

/* Emulate gettimeofday (Ulrich Leodolter, 1/11/95).  */
void 
gettimeofday (struct timeval *tv, struct timezone *tz)
{
  struct _timeb tb;
  _ftime (&tb);

  tv->tv_sec = tb.time;
  tv->tv_usec = tb.millitm * 1000L;
  if (tz) 
    {
      tz->tz_minuteswest = tb.timezone;	/* minutes west of Greenwich  */
      tz->tz_dsttime = tb.dstflag;	/* type of dst correction  */
    }
}
#endif

/* Generates an (extremely) pseudo random number for the dump-id */
static unsigned int
generate_dump_id (void)
{
  EMACS_TIME thyme;
  EMACS_GET_TIME (thyme);

  return (unsigned int) (EMACS_SECS (thyme) ^ EMACS_USECS (thyme));
}

int
main (int argc, char **argv)
{
  FILE *f;

  if ((f = fopen ("dump-id.c", "w")) == NULL)
    {
      perror ("open dump-id.c");
      return EXIT_FAILURE;
    }

  /* dump_id is declared as extern "C" in dumper.h */
  fputs ("extern\n", f);
  fputs ("#ifdef __cplusplus\n", f);
  fputs ("\"C\"\n", f);
  fputs ("#endif\n", f);
  fputs ("unsigned int dump_id;\n", f);
  fprintf (f, "unsigned int dump_id = %uU;\n", generate_dump_id ());

  if ((fclose (f)) != 0)
    {
      perror ("close dump-id.c");
      return EXIT_FAILURE;
    }

  return EXIT_SUCCESS;
}