Software / code / prosody
Changeset
6439:d58ad8bd244b
util.pubsub: Add support for limiting the number of item in a node (default to 20)
| author | Kim Alvefur <zash@zash.se> |
|---|---|
| date | Sun, 28 Sep 2014 01:50:00 +0200 |
| parents | 6438:b1c40054b59d |
| children | 6440:9619809bf50b |
| files | util/pubsub.lua |
| diffstat | 1 files changed, 11 insertions(+), 0 deletions(-) [+] |
line wrap: on
line diff
--- a/util/pubsub.lua Sun Sep 28 01:46:17 2014 +0200 +++ b/util/pubsub.lua Sun Sep 28 01:50:00 2014 +0200 @@ -12,6 +12,7 @@ capabilities = {}; } }; local default_node_config = { __index = { + ["pubsub#max_items"] = "20"; } }; function new(config) @@ -262,6 +263,14 @@ end end +local function trim_items(data, max) + max = tonumber(max); + if not max or #data <= max then return end + repeat + data[t_remove(data, 1)] = nil; + until #data <= max +end + function service:publish(node, actor, id, item) -- Access checking if not self:may(node, actor, "publish") then @@ -283,6 +292,7 @@ remove_item_by_id(node_data, id); node_data[#node_data + 1] = id; node_data[id] = item; + trim_items(node_data, node_obj.config["pubsub#max_items"]); self.events.fire_event("item-published", { node = node, actor = actor, id = id, item = item }); self.config.broadcaster("items", node, node_obj.subscribers, item); return true; @@ -427,6 +437,7 @@ for k,v in pairs(new_config) do node_obj.config[k] = v; end + trim_items(self.data[node], node_obj.config["pubsub#max_items"]); return true; end
