2 Oct
2009
2 Oct
'09
1:34 p.m.
On Fri, Oct 02, 2009 at 06:16:49PM +0200, Luca Ciciriello wrote:
Compiling this module with:
ghc --make Main.hs -o Main
and launcing ./Main the result is just:
Terminal> world
Also, the reason you only get "world" here is likely because the main thread prints "world" and exits before the forked thread even gets a chance to run. If you want the main thread to wait for the forked thread you must explicitly synchronize them; the most common way to do this is to set up an MVar (or a TVar in STM code) which the main thread reads from, and the forked thread writes to when it is finished in order to signal the main thread. -Brent