similar to: popen woes

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, On windows, get_peername works both with connections obtained via start_server, and connections obtained via connect. On linux, get_peername seems to only work with connections obtained via start_server. (I''m using svn HEAD.) I''m wondering which is the intended behavior? (I realize get_peername is less useful for connections obtained via connect, since one should already

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

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 #

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

My Rails application requires a very busy worker process running in the background at all times. I am launching this non-interactive process using script/runner. This process is very busy and is communicating with the MySQL server constantly. As I started putting some load on the system to test, I started running into performance issues. I have since discovered that Rails is only using 1

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 all, I am encountering the following crash-causing bug using popen on occasion. I haven''t been able to narrow it down yet, but I am curious if anyone else has seen it or may have more information for me: Workers::DviToPng::PipeProtocol > terminate called after throwing an instance of ''std::runtime_error'' > what(): unable to reap subprocess > Abort trap

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

Just thought I''d let you know that your http parser worked great for creating an http protocol handler for Eventmachine. It wouldn''t take that much effort to use Eventmachine for Mongrel, might be worth a shot just to see how it does. A few things would need to be restructered, like HttpRequest where you read the rest of the body, and calling the handler. But it

Hi, I am trying to SSH to a remote server through R script. In other words, I would like to know how I can get a SSH connection to the remote server and then execute commands on that server with the R script. So in bash, I would normally type ssh -lusername remoteserver.com; press enter and then wait for the password prompt to key in my password. I have tried system("ssh

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

I''ve got a client who''s recently been moved onto a CentOS4 machine from a 3.x and is writing: "It looks like there''s one remaining problem now; at several points in the PHP part of the dating software, C- binaries are called using popen(). The binaries work correct (tested at the command line with the proper arguments) The popen() retrieves the correct command

I''m running Apache2 on windows and I have a controller that issues a popen. class FileController < ApplicationController def index f = IO.popen("dir") @files = f.readlines end end This works using webbrick but on Apache produces... ---------- Errno::ENOENT in File#index No such file or directory - dir RAILS_ROOT: C:/www/teensymud/public/../config/..

Howdy. I am trying to launch an external shell process from my Rails app using IO.popen. The process runs just fine when I am logged in as the user from the shell but when I run it from Rails, the task doesn''t run properly and the output is too truncated to see any errors. Anything special I need to worry about when running shell tasks this way? I have code like the following:

Hello, I''m trying to write a utility to run an external process and capture it''s stderr. It seems that IO.popen only lets me read the stdout. Any tips for how to read stderr? Mike snippet of code... def process_file(filename) @filename = filename puts "Processing: " + @filename cmdline = "ffmpeg -i " + @filename ffmpeg =

Hi, My application uses popen to execute UNIX commands. After I replace rsh with ssh, it stopped working. I have made a test C code to reproduce the problem as attached in this email. In the test program, I called popen for ssh command and then pclose right away. I got the following error: kirk 588$ a.out Write failed flushing stdout buffer. write stdout: Broken pipe Any idea what is

I'm missing something simple I think: I have an spa3102 for which I want asterisk to use the incoming pstn callerid when it sends the call to a local extension (207). callerid works fine for the internal phones (between each other) The spa3102 is picking up the PSTN callerid and displays it in its own status pages Asterisk however, doesnt see the callerid at all. The spa3102 is set to:

I'm looking for suggestions as to a good general method of remote-logging services such as nginx or anything else which doesn't support syslog natively. I'm aware that there's an nginx patch, and we're evaluating this. It may be the way we fly. However there are other tools which may not have a patch for which remote logging would be useful. If there's a general soution

As described on wkhtmltopdf Google group (http://code.google.com/p/wkhtmltopdf/issues/detail?id=162), I have a problem generating a PDF while using popen and wkhtmltopdf. wkhtmltopdf takes HTML code as input and ouputs a PDF file. Here is what I''m doing: command = ''"C:\Program Files\wkhtmltopdf\wkhtmltopdf.exe" - - -q'' IO.popen(command,