[GHC] #1105: Custom Runtimes

[GHC]

#1105: Custom Runtimes
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    Reporter:  humasect         |       Owner:                                         
        Type:  feature request  |      Status:  new                                    
    Priority:  normal           |   Milestone:                                         
   Component:  Runtime System   |     Version:  6.6                                    
    Severity:  normal           |    Keywords:  runtime custom sdl cocoa init main ghci
  Difficulty:  Unknown          |    Testcase:                                         
Architecture:  Unknown          |          Os:  Multiple                               
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The ability to build custom runtimes would be useful in many development
 situations. Like Objective Caml's -custom, one would be able to create a
 interactive-invokable (GHCi) with a custom main () initialization and
 finalizer. For things such as SDL applications, Cocoa applications, there
 is a need for custom run loops as well. This would be an immensely great
 integration feature for GHC. In these situations it is not possible to
 work in GHCi on most/all platforms without much work done in a specialized
 hs-plugins REPL environment.

 Ideas of Requirements:

 - specifiable initializer (from main)
 - specifiable finalizer
 - specifiable run loop / event handler (light thread) as such:
    REPL
    thread 0 - read, eval (send to thread 1), print, loop
    thread 1 - processing events run loop, check for eval + send result to
 print stage

 [the author is developing a Cocoa+GL native application in 100% Haskell
 sans HOC sans HOpenGL]

-- 
Ticket URL: <http://cvs.haskell.org/trac/ghc/ticket/1105>
GHC <http://www.haskell.org/ghc/>
The Glasgow Haskell Compiler