Function extent_register_impl

app/redis-6.2.6/deps/jemalloc/src/extent.c:737–768

}

static bool
extent_register_impl(tsdn_t *tsdn, extent_t *extent, bool gdump_add) {
	rtree_ctx_t rtree_ctx_fallback;
	rtree_ctx_t *rtree_ctx = tsdn_rtree_ctx(tsdn, &rtree_ctx_fallback);
	rtree_leaf_elm_t *elm_a, *elm_b;

	/*
	 * We need to hold the lock to protect against a concurrent coalesce
	 * operation that sees us in a partial state.
	 */
	extent_lock(tsdn, extent);

	if (extent_rtree_leaf_elms_lookup(tsdn, rtree_ctx, extent, false, true,
	    &elm_a, &elm_b)) {
		return true;
	}

	szind_t szind = extent_szind_get_maybe_invalid(extent);
	bool slab = extent_slab_get(extent);
	extent_rtree_write_acquired(tsdn, elm_a, elm_b, extent, szind, slab);
	if (slab) {
		extent_interior_register(tsdn, rtree_ctx, extent, szind);
	}

	extent_unlock(tsdn, extent);

	if (config_prof && gdump_add) {
		extent_gdump_add(tsdn, extent);
	}

	return false;
}

static bool
extent_register(tsdn_t *tsdn, extent_t *extent) {