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

20171014.53-0224 days ago1,227 downloads
20171014.52-0224 days ago505 downloads
20171014.51-0224 days ago4,654 downloads
20161215.53-01 year ago1,435 downloads
20161215.52-01 year ago950 downloads
20161215.51-01 year ago2,934 downloads
20161214.53-01 year ago71 downloads
20161214.52-01 year ago57 downloads
20161214.51-01 year ago201 downloads
20161018.53-01 year ago340 downloads
20161018.52-01 year ago271 downloads
20161018.51-01 year ago1,083 downloads
20160812.53-11 year ago54 downloads
20160812.53-01 year ago190 downloads
20160812.52-11 year ago68 downloads
20160812.52-01 year ago260 downloads
20160812.51-11 year ago107 downloads
20160812.51-01 year ago612 downloads
20160808.53-01 year ago19 downloads
20160808.52-01 year ago19 downloads
20160808.51-01 year ago25 downloads
20160316.53-02 years ago491 downloads
20160316.52-02 years ago465 downloads
20160316.51-02 years ago1,489 downloads
20150907.53-02 years ago321 downloads
20150907.52-02 years ago356 downloads
20150907.51-02 years ago1,140 downloads
20150119.53-12 years ago24 downloads
20150119.53-03 years ago9 downloads
20150119.52-12 years ago28 downloads
20150119.52-03 years ago170 downloads
20150119.51-12 years ago76 downloads
20150119.51-03 years ago120 downloads
scm-53dev3 years ago4 downloads
scm-52dev3 years ago2 downloads
scm-51dev3 years ago1 download

Dependencies

lua == 5.3

Dependency for

cqueues-pgsql, http, l, lredis, lua-irc, prosody, xcq-subprocess

Labels

Manifests