libguile/gc.h

   1 /* classes: h_files */
   2
   3 #ifndef GCH
   4 #define GCH
   5 /*      Copyright (C) 1995,1996 Free Software Foundation, Inc.
   6  *
   7  * This program is free software; you can redistribute it and/or modify
   8  * it under the terms of the GNU General Public License as published by
   9  * the Free Software Foundation; either version 2, or (at your option)
  10  * any later version.
  11  *
  12  * This program is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  * GNU General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU General Public License
  18  * along with this software; see the file COPYING.  If not, write to
  19  * the Free Software Foundation, Inc., 59 Temple Place, Suite 330,
  20  * Boston, MA 02111-1307 USA
  21  *
  22  * As a special exception, the Free Software Foundation gives permission
  23  * for additional uses of the text contained in its release of GUILE.
  24  *
  25  * The exception is that, if you link the GUILE library with other files
  26  * to produce an executable, this does not by itself cause the
  27  * resulting executable to be covered by the GNU General Public License.
  28  * Your use of that executable is in no way restricted on account of
  29  * linking the GUILE library code into it.
  30  *
  31  * This exception does not however invalidate any other reasons why
  32  * the executable file might be covered by the GNU General Public License.
  33  *
  34  * This exception applies only to the code released by the
  35  * Free Software Foundation under the name GUILE.  If you copy
  36  * code from other Free Software Foundation releases into a copy of
  37  * GUILE, as the General Public License permits, the exception does
  38  * not apply to the code that you add in this way.  To avoid misleading
  39  * anyone as to the status of such modified files, you must delete
  40  * this exception notice from them.
  41  *
  42  * If you write modifications of your own for GUILE, it is your choice
  43  * whether to permit this exception to apply to your modifications.
  44  * If you do not wish that, delete this exception notice.  */
  45 \f
  46
  47 #include "libguile/__scm.h"
  48 \f
  49
  50 #define SCM_FREEP(x) (SCM_CAR(x)==scm_tc_free_cell)
  51 #define SCM_NFREEP(x) (!SCM_FREEP(x))
  52
  53 extern struct scm_heap_seg_data *scm_heap_table;
  54 extern int scm_n_heap_segs;
  55 extern int scm_take_stdin;
  56 extern int scm_block_gc;
  57 extern int scm_gc_heap_lock;
  58 \f
  59
  60
  61 extern long scm_heap_size;
  62 extern SCM_CELLPTR scm_heap_org;
  63 extern SCM scm_freelist;
  64 extern unsigned long scm_gc_cells_collected;
  65 extern unsigned long scm_gc_malloc_collected;
  66 extern unsigned long scm_gc_ports_collected;
  67 extern unsigned long scm_cells_allocated;
  68 extern unsigned long scm_mallocated;
  69 extern long scm_mtrigger;
  70
  71 #ifdef DEBUG_FREELIST
  72 extern void scm_debug_newcell SCM_P ((SCM *into));
  73 #endif
  74
  75 \f
  76
  77 extern SCM scm_object_addr SCM_P ((SCM obj));
  78 extern SCM scm_unhash_name SCM_P ((SCM name));
  79 extern SCM scm_gc_stats SCM_P ((void));
  80 extern void scm_gc_start SCM_P ((char *what));
  81 extern void scm_gc_end SCM_P ((void));
  82 extern SCM scm_gc SCM_P ((void));
  83 extern void scm_gc_for_alloc SCM_P ((int ncells, SCM * freelistp));
  84 extern SCM scm_gc_for_newcell SCM_P ((void));
  85 extern void scm_igc SCM_P ((char *what));
  86 extern void scm_gc_mark SCM_P ((SCM p));
  87 extern void scm_mark_locations SCM_P ((SCM_STACKITEM x[], scm_sizet n));
  88 extern int scm_cellp SCM_P ((SCM value));
  89 extern void scm_gc_sweep SCM_P ((void));
  90 extern char * scm_must_malloc SCM_P ((long len, char *what));
  91 extern char * scm_must_realloc SCM_P ((char *where, long olen, long len,
  92                                        char *what));
  93 extern void scm_done_malloc SCM_P ((long size));
  94 extern void scm_must_free SCM_P ((char *obj));
  95 extern void scm_remember SCM_P ((SCM * ptr));
  96 extern SCM scm_return_first SCM_P ((SCM elt, ...));
  97 extern SCM scm_permanent_object SCM_P ((SCM obj));
  98 extern SCM scm_protect_object SCM_P ((SCM obj));
  99 extern SCM scm_unprotect_object SCM_P ((SCM obj));
 100 extern int scm_init_storage SCM_P ((long init_heap_size));
 101 extern void scm_init_gc SCM_P ((void));
 102 #endif  /* GCH */