mirror/guile
mirror/guile
1
Fork 0
mirror of https://git.savannah.gnu.org/git/guile.git synced 2025-04-30 03:40:34 +02:00
Code Activity

* struct.c, struct.h: Struct data regions (and thus also vtable data regions)

Browse source 
are now C arrays of scm_bits_t elements.
* gc.c:  Made the mixup of glocs and structs explicit.
This commit is contained in:
Dirk Herrmann 2000-04-17 16:25:11 +00:00
parent b0c545678a
commit c8045e8dbd
4 changed files with 114 additions and 88 deletions
Download patch file Download diff file Expand all files Collapse all files

17
libguile/struct.h
View file

@ -70,16 +70,17 @@
#define scm_vtable_index_printer 3 /* A printer for this struct type. */
#define scm_vtable_offset_user 4 /* Where do user fields start? */
typedef scm_sizet (*scm_struct_free_t) (SCM *vtable, SCM *data);
typedef scm_sizet (*scm_struct_free_t) (scm_bits_t * vtable, scm_bits_t * data);
#define SCM_STRUCTF_MASK (0xFFF << 20)
#define SCM_STRUCTF_ENTITY (1L << 30) /* Indicates presence of proc slots */
#define SCM_STRUCTF_LIGHT (1L << 31) /* Light representation
(no hidden words) */
/* Dirk:FIXME:: the SCM_STRUCTP predicate is also fulfilled for glocs */
#define SCM_STRUCTP(X) (SCM_NIMP(X) && (SCM_TYP3(X) == scm_tc3_cons_gloc))
#define SCM_STRUCT_DATA(X) ((scm_bits_t *) SCM_CELL_WORD_1 (X))
#define SCM_STRUCT_VTABLE_DATA(X) ((scm_bits_t *) (SCM_CELL_WORD_0 (X) - 1))
#define SCM_STRUCT_VTABLE_DATA(X) ((scm_bits_t *) (SCM_CELL_WORD_0 (X) - scm_tc3_cons_gloc))
#define SCM_STRUCT_LAYOUT(X) (SCM_PACK (SCM_STRUCT_VTABLE_DATA (X) [scm_vtable_index_layout]))
#define SCM_SET_STRUCT_LAYOUT(X, v) (SCM_STRUCT_VTABLE_DATA (X) [scm_vtable_index_layout] = SCM_UNPACK (v))
@ -98,13 +99,11 @@ extern SCM scm_struct_table;
extern SCM *scm_alloc_struct (int n_words,
int n_extra,
char *who);
extern scm_sizet scm_struct_free_0 (SCM *vtable, SCM *data);
extern scm_sizet scm_struct_free_light (SCM *vtable, SCM *data);
extern scm_sizet scm_struct_free_standard (SCM *vtable, SCM *data);
extern scm_sizet scm_struct_free_entity (SCM *vtable, SCM *data);
extern scm_bits_t * scm_alloc_struct (int n_words, int n_extra, char * who);
extern scm_sizet scm_struct_free_0 (scm_bits_t * vtable, scm_bits_t * data);
extern scm_sizet scm_struct_free_light (scm_bits_t * vtable, scm_bits_t * data);
extern scm_sizet scm_struct_free_standard (scm_bits_t * vtable, scm_bits_t * data);
extern scm_sizet scm_struct_free_entity (scm_bits_t * vtable, scm_bits_t * data);
extern void scm_struct_init (SCM handle, int tail_elts, SCM inits);
extern SCM scm_make_struct_layout (SCM fields);
extern SCM scm_struct_p (SCM x);