System threads (pthreads)

Hi, I've only been able to dig up some old mailing list posts about 
system threads (pthreads) not being usable in a st-based program.  Has 
there been any progress on this front?

One approach suggested by the FAQ is to adopt a multi-process approach, 
but IPC overhead (incl. shared memory) is substantial compared to 
threads, and the approach generally makes things more complex.

(FWIW, in the past, I've added thread support to other async programming 
frameworks by creating a lightweight thread that listens on a socket for 
connections from other system threads.)

Thanks in advance for any answers.
-- 
Yang Zhang
http://www.mit.edu/~y_z/

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