Kamaelia docs : Kamaelia.File.UnixProcess2.UnixProcess2

Kamaelia.File.UnixProcess2.UnixProcess2

For examples and more explanations, see the module level docs.


class UnixProcess2(Axon.Component.component)

UnixProcess2(command[,buffersize][,outpipes][,inpipes][,boxsizes]) -> new UnixProcess2 component.

Starts the specified command as a separate process. Data can be sent to stdin and received from stdout. Named pipes can also be created for extra channels to get data to and from the process.

Keyword arguments:

- command     -- command line string that will invoke the subprocess
- buffersize  -- bytes size of buffers on the pipes to and from the process (default=32768)
- outpipes    -- dict mapping named-pipe-filenames to outbox names (default={})
- inpipes     -- dict mapping named-pipe-filenames to inbox names (default={})
- boxsizes    -- dict mapping inbox names to box sizes (default={})

Inboxes

  • control : Shutdown signalling
  • inbox : Binary string data to go to STDIN of the process.

Outboxes

  • outbox : Binary string data from STDOUT of the process
  • signal : Shutdown signalling
  • _shutdownPipes : For shutting down any named pipes used for output
  • error : Binary string data from STDERR of the process

Methods defined here

Warning!

You should be using the inbox/outbox interface, not these methods (except construction). This documentation is designed as a roadmap as to their functionalilty for maintainers and new component developers.

__init__(self, command[, buffersize][, outpipes][, inpipes][, boxsizes])

x.__init__(...) initializes x; see x.__class__.__doc__ for signature

childrenDone(self)

Unplugs any children that have terminated, and returns true if there are no running child components left (ie. their microproceses have finished)

main(self)

main loop

Feedback

Got a problem with the documentation? Something unclear that could be clearer? Want to help improve it? Constructive criticism is very welcome - especially if you can suggest a better rewording!

Please leave you feedback here in reply to the documentation thread in the Kamaelia blog.

-- Automatic documentation generator, 05 Jun 2009 at 03:01:38 UTC/GMT


Kamaelia is an open source project originated from and guided by BBC Research. For more information browse the site or get in contact.

This is an ongoing community based development site. As a result the contents of this page is the opinions of the contributors of the pages involved not the organisations involved. Specificially, this page may contain personal views which are not the views of the BBC. (the site is powered by a wiki engine)

(C) Copyright 2008 Kamaelia Contributors, including the British Broadcasting Corporation, All Rights Reserved.

This web site is powered by the same code created for the bicker manor project. For more details, contact Michael Sparks at BBC Research directly (cf contact)