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authordaurnimator <quae@daurnimator.com>2015-01-13 18:36:00 -0500
committerdaurnimator <quae@daurnimator.com>2015-01-13 18:36:00 -0500
commit85adf1b4d6f8015ff8e7bc672afaeabf3d9f2e3f (patch)
treeed02f64b92e3d6690c5f2fb68fcda8303d703e4e /net
parente6ab467ef9f3f98a3f041ab6a525321acd2707ee (diff)
downloadprosody-85adf1b4d6f8015ff8e7bc672afaeabf3d9f2e3f.tar.gz
prosody-85adf1b4d6f8015ff8e7bc672afaeabf3d9f2e3f.zip
net.cqueues: Fixes hardcoded timeout for first iteration
This was originally put in place as a fix for what ended up a cqueues bug: https://github.com/wahern/cqueues/issues/40 A check for a cqueues version with the bug fix is included.
Diffstat (limited to 'net')
-rw-r--r--net/cqueues.lua27
1 files changed, 16 insertions, 11 deletions
diff --git a/net/cqueues.lua b/net/cqueues.lua
index a67e405a..f6bfd949 100644
--- a/net/cqueues.lua
+++ b/net/cqueues.lua
@@ -9,6 +9,7 @@
local server = require "net.server";
local cqueues = require "cqueues";
+assert(cqueues.VERSION >= 20150112, "cqueues newer than 20151013 required")
-- Create a single top level cqueue
local cq;
@@ -43,23 +44,27 @@ elseif server.event and server.base then -- server_event
cq = cqueues.new();
-- Only need to listen for readable; cqueues handles everything under the hood
local EV_READ = server.event.EV_READ;
+ -- Convert a cqueues timeout to an acceptable timeout for luaevent
+ local function luaevent_safe_timeout(cq)
+ local t = cq:timeout();
+ -- if you give luaevent 0 or nil, it re-uses the previous timeout.
+ if t == 0 then
+ t = 0.000001; -- 1 microsecond is the smallest that works (goes into a `struct timeval`)
+ elseif t == nil then -- pick something big if we don't have one
+ t = 0x7FFFFFFF; -- largest 32bit int
+ end
+ return t
+ end
local event_handle;
event_handle = server.base:addevent(cq:pollfd(), EV_READ, function(e)
-- Need to reference event_handle or this callback will get collected
-- This creates a circular reference that can only be broken if event_handle is manually :close()'d
local _ = event_handle;
+ -- Run as many cqueues things as possible (with a timeout of 0)
+ -- If an error is thrown, it will break the libevent loop; but prosody resumes after logging a top level error
assert(cq:loop(0));
- -- Convert a cq timeout to an acceptable timeout for luaevent
- local t = cq:timeout();
- if t == 0 then -- if you give luaevent 0, it won't call this callback again
- t = 0.000001; -- 1 microsecond is the smallest that works (goes into a `struct timeval`)
- elseif t == nil then -- you always need to give a timeout, pick something big if we don't have one
- t = 0x7FFFFFFF; -- largest 32bit int
- end
- return EV_READ, t;
- end,
- -- Schedule the callback to fire on first tick to ensure any cq:wrap calls that happen during start-up are serviced.
- 0.000001);
+ return EV_READ, luaevent_safe_timeout(cq);
+ end, luaevent_safe_timeout(cq));
else
error "NYI"
end