On Thu, 23 Aug 2001, Bernd Walter wrote:
> On Thu, Aug 23, 2001 at 10:38:31AM -0700, Matt Dillon wrote:
> > MAP_INHERIT is broken and always has been.
>
> That's a good argument.
> If it's true it awards an entry in the manpages BUGS section.
> Btw. I just tested on NetBSD 1.5U sparc with the same result -
> but without the crashing.
>
> Is there another way to get a shared memory region into another program
> without using SYSV SHM and without having a linked file?
> The problem is that I don't want a file lying around and need to
> be possible to exec at every time.
create teh file,
unlink it.
pass the file descriptor across a unix domain socket?
>
> I thought about creating a file - unlinking it and dup2 the still open
> handle into second programm - then mmap the whole file.
> Will the memory be truely shared after that or do I need to msync(2)?
> Will it work if I use MAP_NOSYNC?
>
msync syncs to disk
you probably DON't want that..
it'll be shared if you specify that..
> --
> B.Walter COSMO-Project http://www.cosmo-project.de
> [EMAIL PROTECTED] Usergroup [EMAIL PROTECTED]
>
>
To Unsubscribe: send mail to [EMAIL PROTECTED]
with "unsubscribe freebsd-hackers" in the body of the message
