A Ruby interface for gathering process information.
Test::Unit 2.x (development only)
Windows 2000 or later
Linux 2.6+
FreeBSD
Solaris 8+
HP-UX 10+
OS X 10.4+
gem install sys-proctable You may need to specify a platform in some cases. For example: gem install sys-proctable --platform mswin32 # Windows gem install sys-proctable --platform sunos # Solaris gem install sys-proctable --platform linux # Linux gem install sys-proctable --platform freebsd # FreeBSD
require 'sys/proctable' include Sys # Everything ProcTable.ps{ |p| puts p.pid.to_s puts p.comm # ... } # Just one process s = ProcTable.ps(2123) puts s.pid.to_s puts s.comm # ... # Return the results as an array of ProcTableStructs a = ProcTable.ps a.each do |p| puts a.pid # ... end
Windows users may pass a host name as a second argument to get process information from a different host. This relies on the WMI service running.
A kvm interface is used. That means the owner of the process using the sys-proctable library needs to be a member of the kvm group (or root).
The cmdline member on Solaris is limited to 80 characters unless you (or your program) own the process. This is a Solaris design flaw/feature.
I am not currently using a thread-safe version of readdir() for versions of this library that use C. I am not especially concerned about it either. If you are trying to read information out of /proc from different threads at the same time there is something seriously wrong with your code logic. Using readdir_r() still won't solve all potential thread safety issues anyway.
Add support for NetBSD and OpenBSD. Convert existing C code to FFI.
This library was originally based on the Perl module Proc::ProcessTable by Dan Urist. Many ideas, as well as large chunks of code, were taken from his work. So, a big THANK YOU goes out to Dan Urist. A big thanks also goes out to Mike Hall who was very helpful with ideas, logic and testing. Thanks also go to Sean Chittenden for providing an account on one of his FreeBSD machines. This is how the FreeBSD support was (initially) added. Thanks go to James Hranicky for providing a patch that grabs name, eid, euid, gid and guid info in the Linux version, along with some general debugging help. Thanks go to David Felstead for the original OS X code. Thanks also go to Matthias Zirnstein for adding cmdline support for OS X. Finally I'd like to thank all the folks who have submitted bug reports and/or patches.
I do not have access to all platforms. If your platform is not supported then you will need to either submit a patch or give me a remote account on a box with a compiler so that I can write the code.
See the documentation under the 'doc' directory for more information, including platform specific notes and issues.
Artistic 2.0
(C) 2003-2014 Daniel J. Berger All Rights Reserved.
Daniel J. Berger
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