Paul Eggert <eggert <at> CS.UCLA.EDU> writes:
> +++ m4/stat-time.m4 2005-09-15 22:39:57.000000000 -0700
> +dnl From Paul Eggert.
> +
> +# st_atim.tv_nsec - Linux, Solaris
> +# st_atimespec.tv_nsec - FreeBSD, if ! defined _POSIX_SOURCE
> +# st_atimensec - FreeBSD, if defined _POSIX_SOURCE
> +# st_atim.st__tim.tv_nsec - UnixWare (at least 2.1.2 through 7.1)
> +# st_spare1 - Cygwin?
Actually, I just looked at the cygwin source code. Most systems that use
newlib have struct stat with adjacent members. No documentation is provided on
the resolution of st_spare1, but I think it is usec:
...
time_t st_atime;
long st_spare1;
time_t st_mtime;
long st_spare2;
time_t st_ctime;
long st_spare3;
...
But cygwin defines its own struct stat, with:
struct timestruc_t {
time_t tv_sec;
long tv_nsec; /* nanos */
};
...
timestruc_t st_atim;
timestruc_t st_mtim;
timestruc_t st_ctim;
...
#define st_atime st_atim.tv_sec
#define st_mtime st_mtim.tv_sec
#define st_ctime st_ctim.tv_sec
So your comment is out of date; cygwin is like Linux. If st_spare1 is still in
active use, it is probably for other newlib systems like mingw.
--
Eric Blake
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