similar to: libevent

Hello, I have been looking at the Ruby/EventMachine. First let me say it look very good. Reactor model with no threads makes for fast reliable server, and I have read about marvelous Twisted framework for Python and am glad to see something similar for Ruby. I am writing network app with Ruby threads now and it very slow, and I try new Ruby 1.9 with native threads that make it much slower.

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

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 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 #

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")

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

Hi all, I am running Xen 4.1.2 with ubuntu Dom0. I have essentially got 1000 Modified Mini-OS DomU''s running at the same time. When i try and access the 1000th domain console: xm console DOM1000 xenconsole: could not read tty from store: No such file or directory The domain is alive and running according to xentop, and has been for some time. I can successfully access the first 338

Hi all, I am running Xen 4.1.2 with ubuntu Dom0. I have essentially got 1000 Modified Mini-OS DomU''s running at the same time. When i try and access the 1000th domain console: xm console DOM1000 xenconsole: could not read tty from store: No such file or directory The domain is alive and running according to xentop, and has been for some time. I can successfully access the first 338

Is getsockname (or its equivalent) available to an EM Connection object? I''d like to access the local port number in my client application. --Michael

From: "Michael S. Fischer" <michael at dynamine.net> > > I wanted my worker program (which uses EM) to pass the user''s password > to the Expect script via standard input in order to avoid some > security hazards associated with alternatives such as storing it in a > file or in the environment, either of which may be observed by others > logged into the

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

The following program is a minor variant on the sample given in the README with eventmachine-0.8.1. I am running under CentOS 4.5 (kernel 2.6.9-55.0.2.plus.c4) with a ruby-1.8.5 RPM from the CentOS testing repository. When I run it, I find that set_comm_inactivity_timeout doesn''t do anything. That is, if I client opens a connection, it stays open indefinitely. However, if I comment out

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

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

Hi all, Some of you are wondering about the future of the project, especially since we''re nearing a 1.0 release. == 1.x - bugfixes and Rack-compatibility synchronization The 1.x series will focus mainly on bug fixes and compatibility with Rack as it evolves. If Rack drops the rewindability requirement of "rack.input", Unicorn will follow ASAP and allow TeeInput to be

---> Package libevent.i386 0:1.1b-1.el4.rf set to be updated --> Running transaction check --> Processing Dependency: libevent-1.1a.so.1 for package: tor --> Finished Dependency Resolution Error: Missing Dependency: libevent-1.1a.so.1 is needed by package tor

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

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

I occasionally get a fatal error unable to delete epoll event: Bad file descriptor I think the attached patch will fix it. The patch does two things: 1) changes the error we look for from ENOENT to EBADF. It is hard to reproduce this error, but if I change the epoll_ctl line to epoll_ctl(epfd, EPOLL_CTL_DEL, 666, ed->GetEpollEvent()); it does return -1 with errno = EBADF on my Linux 2.6.9