Joe Orton wrote:
On Thu, Feb 27, 2003 at 02:35:51PM +0100, Sander Striker wrote:
...
Is there a known issue with mmapping 0 sized files?
FYI, I'm on Linux 2.4.20, glibc 2.3.1.
From a quick check, unless I'm screwing something up, it appears thatpassing a zero length argument to mmap() doesn't work on several platforms (nor does it make a whole lot of sense ;): Solaris and HP-UX both return EINVAL from the the mmap call...
I'll ask our kernel guys about the Linux case, though I'd guess they'll
say it's undefined behaviour.
well, in any case, we should define how it will behave in APR, and stick to it no matter what the underlying platform allows. either it should always pass or always succeed (and return an arbitrary pointer or something). this is just the kind of os dependent behavior APR should be letting you ignore.
-garrett
