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No need to record all nodes in ctl_lookup()

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This commit is contained in:
Yinan Zhang 2020-08-13 10:08:42 -07:00
parent 91e006c4c2
commit 3a627b9674
1 changed files with 6 additions and 11 deletions
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17
src/ctl.c
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@ -1329,7 +1329,8 @@ label_return:
static int
ctl_lookup(tsdn_t *tsdn, const ctl_named_node_t *starting_node,
const char *name, ctl_node_t const **nodesp, size_t *mibp, size_t *depthp) {
const char *name, const ctl_named_node_t **ending_nodep, size_t *mibp,
size_t *depthp) {
int ret;
const char *elm, *tdot, *dot;
size_t elen, i, j;
@ -1357,10 +1358,6 @@ ctl_lookup(tsdn_t *tsdn, const ctl_named_node_t *starting_node,
if (strlen(child->name) == elen &&
strncmp(elm, child->name, elen) == 0) {
node = child;
if (nodesp != NULL) {
nodesp[i] =
(const ctl_node_t *)node;
}
mibp[i] = j;
break;
}
@ -1387,9 +1384,6 @@ ctl_lookup(tsdn_t *tsdn, const ctl_named_node_t *starting_node,
goto label_return;
}
if (nodesp != NULL) {
nodesp[i] = (const ctl_node_t *)node;
}
mibp[i] = (size_t)index;
}
@ -1419,6 +1413,9 @@ ctl_lookup(tsdn_t *tsdn, const ctl_named_node_t *starting_node,
strchr(elm, '\0');
elen = (size_t)((uintptr_t)dot - (uintptr_t)elm);
}
if (ending_nodep != NULL) {
*ending_nodep = node;
}
ret = 0;
label_return:
@ -1430,7 +1427,6 @@ ctl_byname(tsd_t *tsd, const char *name, void *oldp, size_t *oldlenp,
void *newp, size_t newlen) {
int ret;
size_t depth;
ctl_node_t const *nodes[CTL_MAX_DEPTH];
size_t mib[CTL_MAX_DEPTH];
const ctl_named_node_t *node;
@ -1440,13 +1436,12 @@ ctl_byname(tsd_t *tsd, const char *name, void *oldp, size_t *oldlenp,
}
depth = CTL_MAX_DEPTH;
ret = ctl_lookup(tsd_tsdn(tsd), super_root_node, name, nodes, mib,
ret = ctl_lookup(tsd_tsdn(tsd), super_root_node, name, &node, mib,
&depth);
if (ret != 0) {
goto label_return;
}
node = ctl_named_node(nodes[depth-1]);
if (node != NULL && node->ctl) {
ret = node->ctl(tsd, mib, depth, oldp, oldlenp, newp, newlen);
} else {