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* dump.c: Use double cells for update schedule.

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This commit is contained in:
Keisuke Nishida 2001-02-09 22:37:10 +00:00
parent 2f1bbcfd5f
commit bf942687d7
2 changed files with 53 additions and 52 deletions
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4
libguile/ChangeLog
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@ -1,3 +1,7 @@
2001-02-09 Keisuke Nishida <kxn30@po.cwru.edu>
* dump.c: Use double cells for update schedule.
2001-02-08 Keisuke Nishida <kxn30@po.cwru.edu>
* ports.c (scm_unread_char): Take an optional argument.

101
libguile/dump.c
View file

@ -75,12 +75,6 @@ struct scm_dump_header {
/* or immediate value */
};
struct scm_dump_update {
scm_bits_t id; /* object identifier */
scm_bits_t *addr; /* object address */
struct scm_dump_update *next; /* next update */
};
/*
* Dump state
@ -92,17 +86,24 @@ struct scm_dstate {
int mmapped;
scm_sizet image_size;
int image_index;
char *image_base; /* Memory image */
char *image_base; /* Memory image */
int table_index;
SCM table; /* Object table */
struct scm_dump_update *updates; /* Update schedule */
SCM table; /* Object table */
SCM task; /* Update task */
};
#define SCM_DSTATE_DATA(d) ((struct scm_dstate *) SCM_SMOB_DATA (d))
#define SCM_DSTATE_TABLE(d) (SCM_DSTATE_DATA (d)->table)
#define SCM_DSTATE_TABLE_REF(d,i) (SCM_VELTS (SCM_DSTATE_TABLE (d))[i])
#define SCM_DSTATE_TABLE_SET(d,i,x) (SCM_VELTS (SCM_DSTATE_TABLE (d))[i] = (x))
#define SCM_DSTATE_UPDATES(d) (SCM_DSTATE_DATA (d)->updates)
#define SCM_DSTATE_TASK(d) (SCM_DSTATE_DATA (d)->task)
#define SCM_DTASK_ID(t) ((scm_bits_t) SCM_CELL_WORD_1 (t))
#define SCM_DTASK_ADDR(t) ((scm_bits_t *) SCM_CELL_WORD_2 (t))
#define SCM_DTASK_NEXT(t) (SCM_CELL_OBJECT_3 (t))
#define SCM_SET_DTASK_ID(t,x) SCM_SET_CELL_WORD_1 (t, x)
#define SCM_SET_DTASK_ADDR(t,x) SCM_SET_CELL_WORD_2 (t, x)
#define SCM_SET_DTASK_NEXT(t,x) SCM_SET_CELL_OBJECT_3 (t, x)
static SCM
make_dstate ()
@ -115,7 +116,7 @@ make_dstate ()
p->image_base = SCM_MUST_MALLOC (p->image_size);
p->table_index = 0;
p->table = SCM_BOOL_F;
p->updates = 0;
p->task = SCM_EOL;
SCM_RETURN_NEWSMOB (scm_tc16_dstate, p);
}
#undef FUNC_NAME
@ -143,7 +144,7 @@ make_dstate_by_mmap (int fd)
p->image_base = addr;
p->table_index = 0;
p->table = SCM_BOOL_F;
p->updates = 0;
p->task = SCM_EOL;
SCM_RETURN_NEWSMOB (scm_tc16_dstate, p);
}
#undef FUNC_NAME
@ -151,7 +152,11 @@ make_dstate_by_mmap (int fd)
static SCM
dstate_mark (SCM obj)
{
return SCM_DSTATE_TABLE (obj);
SCM task;
struct scm_dstate *p = SCM_DSTATE_DATA (obj);
for (task = p->task; !SCM_NULLP (task); task = SCM_DTASK_NEXT (task))
scm_gc_mark (task);
return p->table;
}
static scm_sizet
@ -176,15 +181,6 @@ dstate_free (SCM obj)
scm_must_free (p->image_base);
}
/* Free update schedules */
while (p->updates)
{
struct scm_dump_update *next = p->updates->next;
scm_must_free (p->updates);
size += sizeof (struct scm_dump_update);
p->updates = next;
}
scm_must_free (p);
return size;
}
@ -286,13 +282,12 @@ scm_store_object (SCM obj, SCM dstate)
{
/* OBJ is not stored yet. Do it later */
struct scm_dstate *p = SCM_DSTATE_DATA (dstate);
struct scm_dump_update *update =
scm_must_malloc (sizeof (struct scm_dump_update),
"scm_store_object");
update->id = SCM_UNPACK (obj);
update->addr = (scm_bits_t *) p->image_index;
update->next = p->updates;
p->updates = update;
SCM task;
SCM_NEWCELL2 (task);
SCM_SET_DTASK_ID (task, SCM_UNPACK (obj));
SCM_SET_DTASK_ADDR (task, p->image_index);
SCM_SET_DTASK_NEXT (task, p->task);
p->task = task;
}
scm_store_word (id, dstate);
}
@ -342,13 +337,13 @@ scm_restore_object (SCM *objp, SCM dstate)
if (SCM_UNBNDP (*objp))
{
struct scm_dump_update *update =
scm_must_malloc (sizeof (struct scm_dump_update),
"scm_restore_object");
update->id = id;
update->addr = (scm_bits_t *) objp;
update->next = SCM_DSTATE_UPDATES (dstate);
SCM_DSTATE_UPDATES (dstate) = update;
struct scm_dstate *p = SCM_DSTATE_DATA (dstate);
SCM task;
SCM_NEWCELL2 (task);
SCM_SET_DTASK_ID (task, id);
SCM_SET_DTASK_ADDR (task, objp);
SCM_SET_DTASK_NEXT (task, p->task);
p->task = task;
}
}
@ -426,15 +421,16 @@ scm_dump (SCM obj, SCM dstate)
}
next_dump:
while (p->updates)
{
struct scm_dump_update *update = p->updates;
p->updates = update->next;
scm_dump (SCM_PACK (update->id), dstate);
*(scm_bits_t *) (p->image_base + (int) update->addr) =
scm_object_indicator (SCM_PACK (update->id), dstate);
scm_must_free (update);
}
{
SCM task;
for (task = p->task; !SCM_NULLP (task); task = SCM_DTASK_NEXT (task))
{
SCM obj = SCM_PACK (SCM_DTASK_ID (task));
scm_dump (obj, dstate);
*(scm_bits_t *) (p->image_base + (int) SCM_DTASK_ADDR (task)) =
scm_object_indicator (obj, dstate);
}
}
}
static void
@ -591,13 +587,14 @@ SCM_DEFINE (scm_binary_read, "binary-read", 0, 1, 0,
scm_undump (dstate);
/* Update references */
while (p->updates)
{
struct scm_dump_update *update = p->updates;
p->updates = update->next;
*(update->addr) = SCM_UNPACK (scm_indicator_object (update->id, dstate));
scm_must_free (update);
}
{
SCM task;
for (task = p->task; !SCM_NULLP (task); task = SCM_DTASK_NEXT (task))
{
*SCM_DTASK_ADDR (task) =
SCM_UNPACK (scm_indicator_object (SCM_DTASK_ID (task), dstate));
}
}
/* Return */
{