[Haskell-cafe] ANNOUNCE: plugins 1.5.1. a framework for dynamic extension of Haskell programs

Don Stewart dons at galois.com
Wed Sep 22 20:18:01 EDT 2010

No, xmonad uses a different dynamic extension model based on the OS
process. To dynamically upgrade an xmonad process, you,

 * modify the source (i.e. the config file)
 * hit mod-q, which triggers:

     + linking of the config file into the application library, creating
       a new xmonad binary on disk.

     + the application state is serialized to a string representation

     + the new xmonad is then (double) forked with the old state as

  * the new version of the app is running with the state of the old app.

You can do similar things at a finer grain of control via plugins.

> Most awesome!
> Does xmonad make use of this library?
> Daniel

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