56 lines
1.9 KiB
C
56 lines
1.9 KiB
C
/***********************************************************************/
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/* */
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/* Objective Caml */
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/* */
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/* Damien Doligez, projet Para, INRIA Rocquencourt */
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/* */
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/* Copyright 1996 Institut National de Recherche en Informatique et */
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/* Automatique. Distributed only by permission. */
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/* */
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/***********************************************************************/
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/* $Id$ */
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#ifndef _gc_
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#define _gc_
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#include "mlvalues.h"
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/* Defined in [major_gc.c]. */
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extern unsigned free_mem_percent_min, free_mem_percent_max;
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#define White (0 << 8)
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#define Gray (1 << 8)
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#define Blue (2 << 8)
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#define Black (3 << 8)
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#define Color_hd(hd) ((color_t) ((hd) & Black))
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#define Color_hp(hp) Color_hd (Hd_hp (hp))
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#define Is_white_hd(hd) (Color_hd (hd) == White)
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#define Is_gray_hd(hd) (Color_hd (hd) == Gray)
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#define Is_blue_hd(hd) (Color_hd (hd) == Blue)
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#define Is_black_hd(hd) (Color_hd (hd) == Black)
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#define Whitehd_hd(hd) ((hd) & ~Black)
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#define Grayhd_hd(hd) (((hd) & ~Black) | Gray)
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#define Blackhd_hd(hd) ((hd) | Black)
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#define Bluehd_hd(hd) (((hd) & ~Black) | Blue)
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/* This depends on the layout of the header. See [mlvalues.h]. */
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#define Make_header(wosize, tag, color) \
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((header_t) (((header_t) (wosize) << 10) \
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+ (color) \
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+ (tag_t) (tag)))
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#define Color_val(val) (Color_hd (Hd_val (val)))
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#define Is_white_val(val) (Color_val(val) == White)
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#define Is_gray_val(val) (Color_val(val) == Gray)
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#define Is_blue_val(val) (Color_val(val) == Blue)
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#define Is_black_val(val) (Color_val(val) == Black)
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#endif /* _gc_ */
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