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Extending system calls

Posted May 19, 2008 11:42 UTC (Mon) by liljencrantz (subscriber, #28458)
In reply to: Extending system calls by jimparis
Parent article: Extending system calls

If the fd creation is part of a library, that solution may be unacceptable.

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Syscalls and locking

Posted Aug 3, 2008 5:43 UTC (Sun) by smurf (subscriber, #17840) [Link]

Libraries don't directly call the system; they use the glibc entry points.

However, any possible locking scheme would require that execve() and open()/whatever cannot
run concurrently. It's not hard to construct a program that would be hurt rather severely by
that restriction.

Extending system calls

Posted Oct 10, 2008 19:41 UTC (Fri) by bluefoxicy (guest, #25366) [Link]

Why not uh. fork(), then in the child (which calls exec()) call close() to drop the file handle, THEN call exec()? You know, like normal people?