cqueues

Continuation Queues: Embeddable asynchronous networking, threading, and notification framework for Lua on Unix.

$ luarocks install cqueues

cqueues is a type of event loop for Lua, except it's not a classic event loop. It doesn't use callbacks—neither as part of the API nor internally—but instead you communicate with an event controller by the yielding and resumption of Lua coroutines using objects that adhere to a simple interface.

cqueues are also stackable. Each instantiated cqueue is a pollable object which can be polled from another cqueue, or another event loop system entirely. The design is meant to be unintrusive, composable, and embeddable within existing applications—such as Apache or Nginx—or used standalone. It maintains no global state and never blocks your thread of execution.

cqueues includes a sockets library with DNS, buffering, end-of-line translation, SSL/TLS, and descriptor passing support builtin. Domain querying, connection establishment, and SSL negotiation are handled transparently as part of a state machine entered with every I/O operation, so users can read and write immediately upon instantiating the object, as if opening a regular file.

cqueues also includes modules for handling signals, threads, and file change notifications using native kernel facilities—such as signalfd on Linux, or Solaris PORT_SOURCE_FILE for file events—and accessible through easy to use interfaces which abstract the different kernel facilities.

Additional modules include a light-weight user-defined event system using the condition variable pattern, and a comprehensive interface for DNS querying.

Versions

20190813.53-0233 days ago2,411 downloads
20190813.52-0233 days ago1,043 downloads
20190813.51-0233 days ago54,748 downloads
20190731.53-0246 days ago236 downloads
20190731.52-0246 days ago78 downloads
20190731.51-0246 days ago3,805 downloads
20171014.53-02 years ago5,465 downloads
20171014.52-02 years ago2,075 downloads
20171014.51-02 years ago60,681 downloads
20161215.53-03 years ago1,443 downloads
20161215.52-03 years ago955 downloads
20161215.51-03 years ago2,947 downloads
20161214.53-03 years ago74 downloads
20161214.52-03 years ago61 downloads
20161214.51-03 years ago235 downloads
20161018.53-03 years ago343 downloads
20161018.52-03 years ago276 downloads
20161018.51-03 years ago1,090 downloads
20160812.53-13 years ago57 downloads
20160812.53-03 years ago(revision: 2)193 downloads
20160812.52-13 years ago71 downloads
20160812.52-03 years ago(revision: 2)263 downloads
20160812.51-13 years ago113 downloads
20160812.51-03 years ago(revision: 2)618 downloads
20160808.53-03 years ago(revision: 2)22 downloads
20160808.52-03 years ago(revision: 2)22 downloads
20160808.51-03 years ago(revision: 2)31 downloads
20160316.53-04 years ago494 downloads
20160316.52-04 years ago468 downloads
20160316.51-04 years ago1,499 downloads
20150907.53-04 years ago324 downloads
20150907.52-04 years ago359 downloads
20150907.51-04 years ago1,145 downloads
20150119.53-14 years ago(revision: 2)27 downloads
20150119.53-05 years ago9 downloads
20150119.52-14 years ago31 downloads
20150119.52-05 years ago181 downloads
20150119.51-14 years ago(revision: 2)81 downloads
20150119.51-05 years ago135 downloads
scm-53dev3 years ago(revision: 5)89 downloads
scm-52dev3 years ago(revision: 6)3 downloads
scm-51dev3 years ago(revision: 5)16 downloads

Dependencies

lua == 5.3

Dependency for

circle, cqueues-pgsql, http, l, lacord, lredis, lua-irc, prosody, prosody, quest, telegram, wch, web-driver, xcq-subprocess

Labels

Manifests