Optimize for cqueues:loop(0) about cqueues

[daurnimator]

Simple patch:

diff --git a/src/cqueues.lua b/src/cqueues.lua
index 9726e99..7a93cdf 100644
--- a/src/cqueues.lua
+++ b/src/cqueues.lua
@@ -92,7 +92,7 @@ local loader = function(loader, ...)
        core.interpose("loop", function (self, timeout)
                local ok, why

-               if timeout then
+               if timeout and timeout ~= 0 then
                        local curtime = monotime()
                        local deadline = curtime + timeout

@@ -102,7 +102,7 @@ local loader = function(loader, ...)
                        until not ok or deadline <= curtime or self:empty()
                else
                        repeat
-                               ok, why = self:step()
+                               ok, why = self:step(timeout) -- timeout is nil or 0
                        until not ok or self:empty()
                end

[wahern]

Lastest commit refactors things so a 0 timeout doesn't result in a call to monotime.

[wahern]

Commit is 35ce522.

[daurnimator]

Great!