[LAD] [ANN] The Audio Rollendurchmesserzeitsammler V0.0.1

The Audio Rollendurchmesserzeitsammler V0.0.1. http://www.notam02.no/arkiv/src/rollendurchmesserzeitsammler-0.0.1.tar.gz (Sorry for the long text below. I'm not planning to do big announcements of further versions of the collector. There is also more information about how it works, etc., in the README file in the source package.) ABOUT ----- The Audio Rollendurchmesserzeitsammler is a garbage collector which provides a general way to efficiently allocate and use memory inside a realtime audio thread without having to manually free it later. Furthermore, there is no write barrier, no read barrier, no special pointer types or templates (ie. no need to tell the collector exactly where pointers are), no reference counting, cyclic dependencies are detected, and finally it is by default configured to be hard realtime safe. Finally, The Audio Rollendurchmesserzeitsammler can be a drop in replacement for Hans Boehm's conservative garbage collector for C and C++. (Regarding its realtime safiness, I think CPU caches might theoretically play an unpredictable role to screw things up, but my limited observations so far is that it doesn't, or at least doesn't screw up a lot.) GARBAGE COLLECTOR TYPE ---------------------- Short: Snapshot mark-and-sweep. Long: Hard realtime conservative parallel non-moving snapshot-mark-sweep-and-free. PURPOSE ------- This collector might be useful for running high level, high performing, and garbage producing languages such as C#, Clean, Common Lisp, D, Eiffel, Haskell, Java, Oberon-2, OCaml, Scheme or SML directly inside a realtime audio thread doing signal processing. (http://shootout.alioth.debian.org/) It can also be useful for running less high performing programming languages which are not doing signal processing directly but would still be convenient to run inside the realtime audio thread, for example for handling midi events. By replacing the garbage collector in a high level language with the one provided in this package, the language becomes one step closer to be able to do realtime signal processing directly in the audio thread. And in some cases, this might very well be all thats needed too. One example is Stalin, an extremely efficient Scheme compiler. By only replacing Hans Boehm's garbage collector, which Stalin normally is using, Stalin's generated code can now run safely inside a realtime audio thread. See the provided example stalinwrapper.c / graincloud.scm how to do that. The allocator is also so effective, that its not unlikely that in some cases it might make sense using it in a program written in C or C++ as well when doing larger computations. CREDITS ------- The garbage collector uses TLSF for doing memory alloaction and deallocation. TLSF is a memory manager library supporting both bounded allocation time and bounded deallocation time. http://rtportal.upv.es/rtmalloc/ gcconfig.h is copied from Hans Bohems garbage collector. http://www.hpl.hp.com/personal/Hans_Boehm/gc/