C call blocks the whole process, and Concurret
module become meaningless. Isn't there any
library or wrapper that can avoid ccall from
blocking entire process ?
--
Ahn Ki-yung
___
Glasgow-haskell-users mailing list
[EMAIL PROTECTED]
http://www.haskell
Ahn Ki-yung <[EMAIL PROTECTED]> writes:
> Document says GHC uses non-blocking IO to be thread friendly.
> [...]
> How is non-blocking and thread working ? I can't understand.
This is usually implemented using 'select' (see attached man page).
In a multithreaded program where you have user-lev
Document says GHC uses non-blocking IO to be
thread friendly. But if it continues to poll on the
non blocking file descriptor. It should cost much
CPU load, but actually it doesn't :
for example if a server is wating an input from
a connected client, say using hGetLine, until
input comes in from th
