diff options
Diffstat (limited to 'util/queue.lua')
-rw-r--r-- | util/queue.lua | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/util/queue.lua b/util/queue.lua index 203da0e3..ac782e84 100644 --- a/util/queue.lua +++ b/util/queue.lua @@ -18,6 +18,7 @@ local function new(size, allow_wrapping) local t = have_utable and utable.create(size, 0) or {}; -- Table to hold items return { + _items = t; size = size; count = function (self) return items; end; push = function (self, item) @@ -50,6 +51,18 @@ local function new(size, allow_wrapping) end return t[tail]; end; + items = function (self) + return function (t, pos) + if pos >= t:count() then + return nil; + end + local read_pos = tail + pos; + if read_pos > t.size then + read_pos = (read_pos%size); + end + return pos+1, t._items[read_pos]; + end, self, 0; + end; }; end |