Annotation of OpenXM_contrib/gc/include/gc_copy_descr.h, Revision 1.1
1.1 ! maekawa 1:
! 2: /*
! 3: * Copyright (c) 1999 by Silicon Graphics. All rights reserved.
! 4: *
! 5: * THIS MATERIAL IS PROVIDED AS IS, WITH ABSOLUTELY NO WARRANTY EXPRESSED
! 6: * OR IMPLIED. ANY USE IS AT YOUR OWN RISK.
! 7: *
! 8: * Permission is hereby granted to use or copy this program
! 9: * for any purpose, provided the above notices are retained on all copies.
! 10: * Permission to modify the code and to distribute modified code is granted,
! 11: * provided the above notices are retained, and a notice that the code was
! 12: * modified is included with the above copyright notice.
! 13: */
! 14: /* Descriptor for allocation request. May be redefined by client. */
! 15: typedef struct {
! 16: GC_word bitmap; /* Bitmap describing pointer locations. */
! 17: /* High order bit correspond to 0th */
! 18: /* word. 2 lsbs must be 0. */
! 19: size_t length; /* In bytes, must be multiple of word */
! 20: /* size. Must be >0, <= 512 */
! 21: } * GC_copy_descriptor;
! 22:
! 23: /* The collector accesses descriptors only through these two macros. */
! 24: #define GC_SIZE_FROM_DESCRIPTOR(d) ((d) -> length)
! 25: #define GC_BIT_MAP_FROM_DESCRIPTOR(d) ((d) -> bitmap)
! 26:
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