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-rw-r--r--src/ctl.c38
1 files changed, 38 insertions, 0 deletions
diff --git a/src/ctl.c b/src/ctl.c
index d5dd1d1..4bb422a 100644
--- a/src/ctl.c
+++ b/src/ctl.c
@@ -151,6 +151,7 @@ CTL_PROTO(arena_i_purge)
CTL_PROTO(arena_i_reset)
CTL_PROTO(arena_i_destroy)
CTL_PROTO(arena_i_dss)
+CTL_PROTO(arena_i_oversize_threshold)
CTL_PROTO(arena_i_dirty_decay_ms)
CTL_PROTO(arena_i_muzzy_decay_ms)
CTL_PROTO(arena_i_extent_hooks)
@@ -431,6 +432,11 @@ static const ctl_named_node_t arena_i_node[] = {
{NAME("reset"), CTL(arena_i_reset)},
{NAME("destroy"), CTL(arena_i_destroy)},
{NAME("dss"), CTL(arena_i_dss)},
+ /*
+ * Undocumented for now, since we anticipate an arena API in flux after
+ * we cut the last 5-series release.
+ */
+ {NAME("oversize_threshold"), CTL(arena_i_oversize_threshold)},
{NAME("dirty_decay_ms"), CTL(arena_i_dirty_decay_ms)},
{NAME("muzzy_decay_ms"), CTL(arena_i_muzzy_decay_ms)},
{NAME("extent_hooks"), CTL(arena_i_extent_hooks)},
@@ -2531,6 +2537,38 @@ label_return:
}
static int
+arena_i_oversize_threshold_ctl(tsd_t *tsd, const size_t *mib, size_t miblen,
+ void *oldp, size_t *oldlenp, void *newp, size_t newlen) {
+ int ret;
+
+ unsigned arena_ind;
+ MIB_UNSIGNED(arena_ind, 1);
+
+ arena_t *arena = arena_get(tsd_tsdn(tsd), arena_ind, false);
+ if (arena == NULL) {
+ ret = EFAULT;
+ goto label_return;
+ }
+
+ if (oldp != NULL && oldlenp != NULL) {
+ size_t oldval = atomic_load_zu(
+ &arena->pa_shard.pac.oversize_threshold, ATOMIC_RELAXED);
+ READ(oldval, size_t);
+ }
+ if (newp != NULL) {
+ if (newlen != sizeof(size_t)) {
+ ret = EINVAL;
+ goto label_return;
+ }
+ atomic_store_zu(&arena->pa_shard.pac.oversize_threshold,
+ *(size_t *)newp, ATOMIC_RELAXED);
+ }
+ ret = 0;
+label_return:
+ return ret;
+}
+
+static int
arena_i_decay_ms_ctl_impl(tsd_t *tsd, const size_t *mib, size_t miblen,
void *oldp, size_t *oldlenp, void *newp, size_t newlen, bool dirty) {
int ret;