On Tue, May 16, 2006 at 12:00:32AM +0200, Roland Mainz wrote:
>
> Hi!
>
> ----
>
> This is slightly offtopic but due lack of a better list for this I am
> asking this here:
> Does Solaris have any C API (maybe something in libc ?) which works like
> /usr/bin/clear but does not require a |fork()| (=expensive call) nor
> uses libcurses/libncurses (e.g. adds another library dependicy) ?
No. If you do:
system("/usr/bin/clear");
or
system("exec /usr/bin/tput clear 2>/dev/null");
you might avoid *some* of the expense (since, as of Solaris 10, system()
uses vfork(), even on multi-threaded processes. So the "duplicating
the address space just to tear it down at exec() time" cost is gone.
On the other hand, you're still stopping all of the threads in the process
until the forked thread reaches exec(). So there's a balance.
Cheers,
- jonathan
--
Jonathan Adams, Solaris Kernel Development
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