similar to: libevent

Francis, I read in the list archives back that a future EventMachine release will support epoll on Linux (i.e., it''s in the trunk). Better still, is there a possibility that EM will rely on libevent so that it will be architecture independent (i.e. epoll on Linux, kqueue on FreeBSD/Mac OS X, /dev/poll on Solaris)? This is how memcached is implemented, and it would be helpful to be able

Hello, on the application that I''m working on, we are using Thin. The server implements long polling and commands that alter its internal state. Connecting to the long poll is a very fast operation, while updating the state of the server is a relatively slow operation. The long poll connection is held open until there is a change to be sent to the connection. Here is my current

Short question: is there way to tell EM to actually send data after send_data call? I''m building a file transferring app. I send Mashal.dump''ed metadata first, and then - the file contents (chunked). I found a silly bug: receive_data() gets marshalled metadata and the first chunk of the file in a single variable. Like that: c1.send_data("meta")

Guys, Just for fun, I tried to see (I know, a silly way to test it) how much overhead we have calling the C functions of the extensions. the benchmark script and the results: http://pastie.caboo.se/128646 The naive C extension: http://pastie.caboo.se/128647 I compared 1.8.6 (VC6 and mingw builds) against a fresh checkout of ruby trunk. What I understand from that is 1.9 is slower than 1.8

From: Tony Arcieri > > A STUN implementation will be an important part of DistribuStream > in terms of firewall traversal. However, first I need to move the > whole protocol to UDP, and before I do that I''m trying to make it > work better in general. > > I''m also unsure what to use for a UDP data transfer protocol. I > need something to work in

Hi All, I''m currently looking into doing a bit of evented network programming in ruby and i''m currently looking into packet, eventmachine and rev. The problem is that I need to be able to fork and start a new reactor within the forked child (it also should open a socket and write status information back to the main process). I have not been able to do this with EventMachine.

Sorry this is going to be a bit vague, but I''ve noticed something rather odd going on with EventMachine on Linux. I''ve written something uses EventMachine to proxy HTTP to other processes. On OS X, it works great, adding only about 20% extra latency into the connection when proxying versus connecting to the original backend process directly, so a 5ms connection might now take

Hi everyone, If you subclass EventMachine::Connection and call it outside an EventMachine::run event loop, EventMachine crashes! Example: class Put < EventMachine::Connection include EventMachine::Deferrable HOST="localhost" PORT=8080 def self.request(data) EventMachine.connect(HOST, PORT, self) {|c| c.instance_eval { @data = data } } end #

Hi EM Gurus, I''m hoping someone can shed some light on the following... I''m using a 3rd party (legacy) server that can accept up to 8 simultaneous connections on one port. I''ve been able to make multiple connections to this server from within one call to EventMachine::run {...}. Specificaly, I can access each connection separately using: em_thread = Thread.new do

I''ve added experiments/core-model-2 to SVN. I think this is pretty clean and satisfactory. Jeff, please have a look and see if you like the placement of timeouts (which are currently unimplemented). Any event now has the possibility of a timeout. To get an application-level timeout, you''d just post an event with a timeout to a nil target. When the timeout expires, the errback

Before anything else, let me state this: Of course it''s going to be PAINFULLY slow on MRI. That''s not the point :) I thought I''d try out writing out a Ruby version of the parser for the purposes of Rubinius. For those of you who aren''t aware, Ragel supports a goto-driven FSM on Rubinius by injecting assembly directly, and Rubinus head honcho guy Evan Phoenix

I''ve actually found a way to make EventMachine listen to events from a serial port, but only by using the pure Ruby version, using Guilliame Pierronnet''s Ruby/SerialPort library. It turned out to be simpler than I thought it would be: require ''serialport'' $eventmachine_library = :pure_ruby require ''eventmachine'' module EventMachine class

Hi, I''ve started learning about EventMachine right now and have some basic doubts. Hope you could clarify them. I''m developing a SIP server. For now I''ve started it from scratch but I expect to migrate it to EventMachine. SIP is a very complex protocol. For example: if I use a SIP proxy in front of my server then all the data will arrive to my server using the same TCP

I am using eventmachine 0.8.1 on windows XP and am having very odd problems. This snippet of code gives the error that follows it. class EchoServer def receive_data data puts data send_data ">>>you sent: #{data}" if data =~ /quit/i puts "quitting" close_connection EventMachine::stop_event_loop end end end

Hi Stephen, Many thanks for your answer. Unbound under OpenBSD is compiled with few options: Version 1.9.4 Configure line: --enable-allsymbols --with-ssl=/usr --with-libevent=/usr --with-libexpat=/usr --without-pythonmodule --with-chroot-dir=/var/unbound --with-pidfile= --with-rootkey-file=/var/unbound/db/root.key --with-conf-file=/var/unbound/etc/unbound.conf --with-username=_unbound

Hello all, I''ve been learning Ruby and playing with a chat server I built using GServer. After into an issue I found with GServer, that no one else seemed to notice (actually, similar to this question, GServer is hard to kill nicely, especially when you want to.), I found references to EventMachine, and rebuilt my server using it. I much prefer EventMachine''s model. The

Hi there, I''ve got a Rails app that''s a little unusual in that it maintains a database representation of a filesystem (for an image gallery). Thus, if the filesystem is essentially ''out of date'' then the controller''s list action will end up invoking a model update (which involves a filesystem scan). I''m using sqlite3 as this app will be

Good morning, I have detected two strange problems with unbound under CentOS8 (fully patched). I have tried same configuration in an OpenBSD host, and these problems do not appear. a/ Error mesage ?connection refused?. I am using this unbound server to resolv DNS records for our internal domain (Bind9 is configured to listen in localhost interface, port 5353 udp and in the same host where

Hi Folks, We are glad to announce shiny new release of BackgrounDRb, which will soon become 1.0. A quick summary of changes: - BackgrounDRb is no londer DRb, its based on event driven network programming library packet ( http://www.packet.googlecode.com ) . - Since we moved to packet, many nasty thread issues, result hash corruption issues are totally gone. Lots of work has went in making

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Ok, so rake migrate --trace gets you this: Khavi:~/Documents/WebCode/rails/clickcaster sgoodwin$ rake migrate -- trace (in /Users/sgoodwin/Documents/WebCode/rails/clickcaster) ** Invoke migrate (first_time) ** Invoke db:migrate (first_time) ** Invoke environment (first_time) ** Execute environment ** Execute db:migrate ** Execute migrate then it