For cygwin and windows plateform see ntcreatefile that allow to open an handle relativly to another handle
Bastien Le 23 déc. 2010 15:52, "Eric Blake" <ebl...@redhat.com> a écrit : On 12/23/2010 05:08 AM, Bruno Haible wrote: > Bastien ROUCARIES wrote: >> If chdir is a problem, why... Unfortunately, it is not possible to pass fds on cygwin; it is not possible to implement SCM_RIGHTS on top of what Windows provides. Then again, cygwin's *at functions don't need replacing, so it's a moot point. The whole exercise here is how to cater to systems that don't support native *at correctly. > And on mingw, REPLACE_FCHDIR is 1, which means we assume that we use the > emulated fchdir, which... Indeed; furthermore, mingw has the (in this case, nice) property that absolute pathnames cannot be larger than about 256 bytes, so there's not as much risk of the O(n^2) behavior that filename concatenation would have on other systems with unlimited directory depth. -- Eric Blake ebl...@redhat.com +1-801-349-2682 Libvirt virtualization library http://libvirt.org
