Paul van der Zwan <[EMAIL PROTECTED]> writes:
> AFAIK getpagesizes() appeared in 2001 so that probably means it is
> missing in anything before Solaris 9.
We could handle this without relying on getpagesizes() by just trying
and falling back:
#ifdef SHM_SHARE_MMU
memAddress = shmat(shmid, addr, SHM_SHARE_MMU);
if (memAddress == (void *) -1 && errno == EINVAL)
memAddress = shmat(shmid, addr, 0);
#else
memAddress = shmat(shmid, addr, 0);
#endif
However, I would argue that a system is pretty broken if it exposes the
SHM_SHARE_MMU #define and then rejects it at runtime.
> I'll see if I can get the x86 experts here to have a look at it...
I think either Solaris/x86 should not expose this #define, or it should
silently ignore the bit at runtime. AFAICS, SHM_SHARE_MMU has no
guaranteed semantic effect anyway, it's just a performance hint; so
ignoring it on platforms that can't handle it is reasonable.
regards, tom lane
---------------------------(end of broadcast)---------------------------
TIP 5: don't forget to increase your free space map settings
