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, 675 Mass Ave, Cambridge, MA 02139, USA.
  20  *
  21  * As a special exception, the Free Software Foundation gives permission
  22  * for additional uses of the text contained in its release of GUILE.
  23  *
  24  * The exception is that, if you link the GUILE library with other files
  25  * to produce an executable, this does not by itself cause the
  26  * resulting executable to be covered by the GNU General Public License.
  27  * Your use of that executable is in no way restricted on account of
  28  * linking the GUILE library code into it.
  29  *
  30  * This exception does not however invalidate any other reasons why
  31  * the executable file might be covered by the GNU General Public License.
  32  *
  33  * This exception applies only to the code released by the
  34  * Free Software Foundation under the name GUILE.  If you copy
  35  * code from other Free Software Foundation releases into a copy of
  36  * GUILE, as the General Public License permits, the exception does
  37  * not apply to the code that you add in this way.  To avoid misleading
  38  * anyone as to the status of such modified files, you must delete
  39  * this exception notice from them.
  40  *
  41  * If you write modifications of your own for GUILE, it is your choice
  42  * whether to permit this exception to apply to your modifications.
  43  * If you do not wish that, delete this exception notice.
  44  */
  45 \f
  46
  47 #include "__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 \f
  72 #ifdef __STDC__
  73 extern SCM scm_gc_stats (void);
  74 extern void scm_gc_start (char *what);
  75 extern void scm_gc_end (void);
  76 extern SCM scm_gc (void);
  77 extern void scm_gc_for_alloc (int ncells, SCM * freelistp);
  78 extern SCM scm_gc_for_newcell (void);
  79 extern void scm_igc (char *what);
  80 extern void scm_gc_mark (SCM p);
  81 extern void scm_mark_locations (SCM_STACKITEM x[], scm_sizet n);
  82 extern void scm_gc_sweep (void);
  83 extern char * scm_must_malloc (long len, char *what);
  84 extern char * scm_must_realloc (char *where, long olen, long len, char *what);
  85 extern void scm_must_free (char *obj);
  86 extern void scm_remember (SCM * ptr);
  87 extern SCM scm_return_first (SCM elt, ...);
  88 extern SCM scm_permanent_object (SCM obj);
  89 extern SCM scm_protect_object (SCM obj);
  90 extern SCM scm_unprotect_object (SCM obj);
  91 extern int scm_init_storage (long init_heap_size);
  92 extern void scm_init_gc (void);
  93
  94 #else /* STDC */
  95 extern SCM scm_gc_stats ();
  96 extern void scm_gc_start ();
  97 extern void scm_gc_end ();
  98 extern SCM scm_gc ();
  99 extern void scm_gc_for_alloc ();
 100 extern SCM scm_gc_for_newcell ();
 101 extern void scm_igc ();
 102 extern void scm_gc_mark ();
 103 extern void scm_mark_locations ();
 104 extern void scm_gc_sweep ();
 105 extern char * scm_must_malloc ();
 106 extern char * scm_must_realloc ();
 107 extern void scm_must_free ();
 108 extern void scm_remember ();
 109 extern SCM scm_return_first ();
 110 extern SCM scm_permanent_object ();
 111 extern SCM scm_protect_object ();
 112 extern SCM scm_unprotect_object ();
 113 extern int scm_init_storage ();
 114 extern void scm_init_gc ();
 115
 116 #endif /* STDC */
 117 #include "marksweep.h"
 118 #endif  /* GCH */