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updated for version 7.2-188

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This commit is contained in:
Bram Moolenaar 2009-05-24 11:40:58 +00:00
parent a41b1395cb
commit c0a6fac5af
2 changed files with 71 additions and 27 deletions
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96
src/eval.c
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@ -129,8 +129,11 @@ static hashtab_T compat_hashtab;
/*
* When recursively copying lists and dicts we need to remember which ones we
* have done to avoid endless recursiveness. This unique ID is used for that.
* The last bit is used for previous_funccal, ignored when comparing.
*/
static int current_copyID = 0;
#define COPYID_INC 2
#define COPYID_MASK (~0x1)
/*
* Array to hold the hashtab with variables local to each sourced script.
@ -439,6 +442,7 @@ static list_T *list_copy __ARGS((list_T *orig, int deep, int copyID));
static void list_remove __ARGS((list_T *l, listitem_T *item, listitem_T *item2));
static char_u *list2string __ARGS((typval_T *tv, int copyID));
static int list_join __ARGS((garray_T *gap, list_T *l, char_u *sep, int echo, int copyID));
static int free_unref_items __ARGS((int copyID));
static void set_ref_in_ht __ARGS((hashtab_T *ht, int copyID));
static void set_ref_in_list __ARGS((list_T *l, int copyID));
static void set_ref_in_item __ARGS((typval_T *tv, int copyID));
@ -6494,14 +6498,13 @@ list_join(gap, l, sep, echo, copyID)
int
garbage_collect()
{
dict_T *dd;
list_T *ll;
int copyID = ++current_copyID;
int copyID;
buf_T *buf;
win_T *wp;
int i;
funccall_T *fc, **pfc;
int did_free = FALSE;
int did_free;
int did_free_funccal = FALSE;
#ifdef FEAT_WINDOWS
tabpage_T *tp;
#endif
@ -6511,10 +6514,25 @@ garbage_collect()
may_garbage_collect = FALSE;
garbage_collect_at_exit = FALSE;
/* We advance by two because we add one for items referenced through
* previous_funccal. */
current_copyID += COPYID_INC;
copyID = current_copyID;
/*
* 1. Go through all accessible variables and mark all lists and dicts
* with copyID.
*/
/* Don't free variables in the previous_funccal list unless they are only
* referenced through previous_funccal. This must be first, because if
* the item is referenced elsewhere it must not be freed. */
for (fc = previous_funccal; fc != NULL; fc = fc->caller)
{
set_ref_in_ht(&fc->l_vars.dv_hashtab, copyID + 1);
set_ref_in_ht(&fc->l_avars.dv_hashtab, copyID + 1);
}
/* script-local variables */
for (i = 1; i <= ga_scripts.ga_len; ++i)
set_ref_in_ht(&SCRIPT_VARS(i), copyID);
@ -6546,11 +6564,47 @@ garbage_collect()
/* v: vars */
set_ref_in_ht(&vimvarht, copyID);
/* Free lists and dictionaries that are not referenced. */
did_free = free_unref_items(copyID);
/* check if any funccal can be freed now */
for (pfc = &previous_funccal; *pfc != NULL; )
{
if (can_free_funccal(*pfc, copyID))
{
fc = *pfc;
*pfc = fc->caller;
free_funccal(fc, TRUE);
did_free = TRUE;
did_free_funccal = TRUE;
}
else
pfc = &(*pfc)->caller;
}
if (did_free_funccal)
/* When a funccal was freed some more items might be garbage
* collected, so run again. */
(void)garbage_collect();
return did_free;
}
/*
* Free lists and dictionaries that are no longer referenced.
*/
static int
free_unref_items(copyID)
int copyID;
{
dict_T *dd;
list_T *ll;
int did_free = FALSE;
/*
* 2. Go through the list of dicts and free items without the copyID.
* Go through the list of dicts and free items without the copyID.
*/
for (dd = first_dict; dd != NULL; )
if (dd->dv_copyID != copyID)
if ((dd->dv_copyID & COPYID_MASK) != (copyID & COPYID_MASK))
{
/* Free the Dictionary and ordinary items it contains, but don't
* recurse into Lists and Dictionaries, they will be in the list
@ -6565,12 +6619,13 @@ garbage_collect()
dd = dd->dv_used_next;
/*
* 3. Go through the list of lists and free items without the copyID.
* But don't free a list that has a watcher (used in a for loop), these
* are not referenced anywhere.
* Go through the list of lists and free items without the copyID.
* But don't free a list that has a watcher (used in a for loop), these
* are not referenced anywhere.
*/
for (ll = first_list; ll != NULL; )
if (ll->lv_copyID != copyID && ll->lv_watch == NULL)
if ((ll->lv_copyID & COPYID_MASK) != (copyID & COPYID_MASK)
&& ll->lv_watch == NULL)
{
/* Free the List and ordinary items it contains, but don't recurse
* into Lists and Dictionaries, they will be in the list of dicts
@ -6584,20 +6639,6 @@ garbage_collect()
else
ll = ll->lv_used_next;
/* check if any funccal can be freed now */
for (pfc = &previous_funccal; *pfc != NULL; )
{
if (can_free_funccal(*pfc, copyID))
{
fc = *pfc;
*pfc = fc->caller;
free_funccal(fc, TRUE);
did_free = TRUE;
}
else
pfc = &(*pfc)->caller;
}
return did_free;
}
@ -18842,6 +18883,7 @@ init_var_dict(dict, dict_var)
{
hash_init(&dict->dv_hashtab);
dict->dv_refcount = DO_NOT_FREE_CNT;
dict->dv_copyID = 0;
dict_var->di_tv.vval.v_dict = dict;
dict_var->di_tv.v_type = VAR_DICT;
dict_var->di_tv.v_lock = VAR_FIXED;
@ -21294,8 +21336,8 @@ call_user_func(fp, argcount, argvars, rettv, firstline, lastline, selfdict)
current_funccal = fc->caller;
--depth;
/* if the a:000 list and the a: dict are not referenced we can free the
* funccall_T and what's in it. */
/* If the a:000 list and the l: and a: dicts are not referenced we can
* free the funccall_T and what's in it. */
if (fc->l_varlist.lv_refcount == DO_NOT_FREE_CNT
&& fc->l_vars.dv_refcount == DO_NOT_FREE_CNT
&& fc->l_avars.dv_refcount == DO_NOT_FREE_CNT)
@ -21334,7 +21376,7 @@ call_user_func(fp, argcount, argvars, rettv, firstline, lastline, selfdict)
/*
* Return TRUE if items in "fc" do not have "copyID". That means they are not
* referenced from anywhere.
* referenced from anywhere that is in use.
*/
static int
can_free_funccal(fc, copyID)

2
src/version.c
View File

@ -676,6 +676,8 @@ static char *(features[]) =
static int included_patches[] =
{ /* Add new patch number below this line */
/**/
188,
/**/
187,
/**/