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| author | Ulrich Drepper <drepper@redhat.com> | 2005-12-04 07:10:47 +0000 |
|---|---|---|
| committer | Ulrich Drepper <drepper@redhat.com> | 2005-12-04 07:10:47 +0000 |
| commit | 707c7499fdae6795ea845a7fc002b47795e7e161 (patch) | |
| tree | 83105cca6cc41d8aad0557958888426f17a301e8 | |
| parent | 56a5719e184c982c7e09cb4cc57cb6cd42eadef4 (diff) | |
| download | glibc-707c7499fdae6795ea845a7fc002b47795e7e161.tar.gz glibc-707c7499fdae6795ea845a7fc002b47795e7e161.tar.xz glibc-707c7499fdae6795ea845a7fc002b47795e7e161.zip | |
(nis_list): One more reallocation optimization.
| -rw-r--r-- | nis/nis_table.c | 20 |
1 files changed, 15 insertions, 5 deletions
diff --git a/nis/nis_table.c b/nis/nis_table.c index 773380acac..6761d37233 100644 --- a/nis/nis_table.c +++ b/nis/nis_table.c @@ -267,8 +267,8 @@ nis_list (const_nis_name name, unsigned int flags, case NIS_PARTIAL: case NIS_SUCCESS: case NIS_S_SUCCESS: - if (__type_of (NIS_RES_OBJECT (res)) == NIS_LINK_OBJ && - flags & FOLLOW_LINKS) /* We are following links. */ + if (__type_of (NIS_RES_OBJECT (res)) == NIS_LINK_OBJ + && (flags & FOLLOW_LINKS)) /* We are following links. */ { free (ibreq->ibr_name); ibreq->ibr_name = NULL; @@ -319,8 +319,8 @@ nis_list (const_nis_name name, unsigned int flags, first_try = 1; /* Try at first the old binding */ goto again; } - else if ((flags & FOLLOW_PATH) && - NIS_RES_STATUS (res) == NIS_PARTIAL) + else if ((flags & FOLLOW_PATH) + && NIS_RES_STATUS (res) == NIS_PARTIAL) { if (!have_tablepath) { @@ -349,11 +349,21 @@ nis_list (const_nis_name name, unsigned int flags, else { ibreq->ibr_name = strdup (ibreq->ibr_name); + /* The following is a non-obvious optimization. A + nis_freeresult call would call xdr_free as the + following code. But it also would unnecessarily + free the result structure. We avoid this here + along with the necessary tests. */ +#if 1 + xdr_free ((xdrproc_t) _xdr_nis_result, (char *)res); + memset (res, '\0', sizeof (*res)); + if (ibreq->ibr_name == NULL) +#else nis_freeresult (res); res = calloc (1, sizeof (nis_result)); if (res == NULL || ibreq->ibr_name == NULL) +#endif { - free (ibreq->ibr_name); free (res); nis_free_request (ibreq); if (have_tablepath) |