[M3commit] CVS Update: cm3

[Jay]

But how about if we always #define _FILE_OFFSET_BITS 64 and use C wrappers?
  As I have done. 
Or externs with "64" appended, but that prevents me from using one set of .i3 files.
 
I mean, I know there are "modes" with 32 bit off_t, but we should really strive not to use them, if given a choice, eh?
 
You think there are any systems we will ever care about that don't offer a 64 bit off_t (or off64_t, or whatever).
 
 - Jay

From: hosking at To: jkrell at Date: Sun, 4 Jan 2009 12:57:28 +1100CC: m3commit at elegosoft.comSubject: Re: [M3commit] CVS Update: cm3On some platforms off_t is not 64 bits.  This from Solaris (see off_t==long):

#if defined(_LARGEFILE_SOURCE) || defined(_XPG5)
#ifndef _OFF_T
#define _OFF_T
#if defined(_LP64) || _FILE_OFFSET_BITS == 32
typedef long            off_t;
#else
typedef __longlong_t    off_t;
#endif
#ifdef  _LARGEFILE64_SOURCE
#ifdef _LP64
typedef off_t           off64_t;
#else
typedef __longlong_t    off64_t;
#endif
#endif /* _LARGEFILE64_SOURCE */
#endif /* _OFF_T */
#endif /* _LARGEFILE_SOURCE * 





Antony Hosking | Associate Professor | Computer Science | Purdue University
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On 4 Jan 2009, at 01:53, Jay Krell wrote:

CVSROOT: /usr/cvsChanges by: jkrell at birch. 09/01/04 01:53:03Modified files:cm3/m3-libs/m3core/src/unix/Common/: Unix.i3 Utypes.i3 cm3/m3-libs/m3core/src/unix/cygwin/: Usysdep.i3 cm3/m3-libs/m3core/src/unix/linux-common/: Usysdep.i3 cm3/m3-libs/m3core/src/unix/openbsd-common/: Usysdep.i3 Log message:significant reduction in sysdep contentoff_t is always 64 bits (or at least let's hope so)the dir/stat flags are mostly all the same,except for a few that are zero on cygwinM[RWX][OWNER GROUP OTHER][FXWR]_OKF_SETFD, F_GETFL, F_SETFLFIONREADITIMER_REALITIMER_VIRTUALSome of this might be by chance and not by-standard,so under review for new platforms, and probably should be verifiedduring native builds.note that OS/2 has a different S_IFMT but not quite relevant here
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