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patch 8.0.0605: the quickfix cached buffer may become invalid

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Problem:    The buffer that quickfix caches for performance may become
            invalid. (Daniel Hahler)
Solution:   Reset qf_last_bufref in qf_init_ext(). (Daniel Hahler,
            closes #1728, closes #1676)
This commit is contained in:
Bram Moolenaar
2017-05-28 07:56:36 +02:00
parent b4d6c3ea4a
commit 6dd4a53502
2 changed files with 13 additions and 7 deletions
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18
src/quickfix.c
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@@ -157,6 +157,13 @@ static qf_info_T *ll_get_or_alloc_list(win_T *);
*/
#define GET_LOC_LIST(wp) (IS_LL_WINDOW(wp) ? wp->w_llist_ref : wp->w_llist)
/*
* Looking up a buffer can be slow if there are many. Remember the last one
* to make this a lot faster if there are multiple matches in the same file.
*/
static char_u *qf_last_bufname = NULL;
static bufref_T qf_last_bufref = {NULL, 0};
/*
* Read the errorfile "efile" into memory, line by line, building the error
* list. Set the error list's title to qf_title.
@@ -1151,6 +1158,10 @@ qf_init_ext(
int retval = -1; /* default: return error flag */
int status;
/* Do not used the cached buffer, it may have been wiped out. */
vim_free(qf_last_bufname);
qf_last_bufname = NULL;
vim_memset(&state, 0, sizeof(state));
vim_memset(&fields, 0, sizeof(fields));
#ifdef FEAT_MBYTE
@@ -1659,13 +1670,6 @@ copy_loclist(win_T *from, win_T *to)
to->w_llist->qf_curlist = qi->qf_curlist; /* current list */
}
/*
* Looking up a buffer can be slow if there are many. Remember the last one
* to make this a lot faster if there are multiple matches in the same file.
*/
static char_u *qf_last_bufname = NULL;
static bufref_T qf_last_bufref = {NULL, 0};
/*
* Get buffer number for file "directory/fname".
* Also sets the b_has_qf_entry flag.