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Commit 810397f89a10, and possibly others, broke the build for macOS and other environments which don't have st_[acm]tim fields on 'struct stat'. Multiple places in the codebase used the config.h values to determine how to access the nanosecond or microsecond values of the stat timestamps, so rather than add more, centralize them all into lib/util/time.c. Also allow pvfs_fileinfo.c to read nanosecond-granularity timestamps on platforms where it didn't before, since its #if branches were not complete. Signed-off-by: Matthew DeVore <matvore@google.com> Reviewed-by: Jeremy Allison <jra@samba.org> Reviewed-by: Volker Lendecke <vl@samba.org> Autobuild-User(master): Volker Lendecke <vl@samba.org> Autobuild-Date(master): Sat Aug 15 08:51:09 UTC 2020 on sn-devel-184
This is the base of the new NTVFS subsystem for Samba. The model for NTVFS backends is quite different than for the older style VFS backends, in particular: - the NTVFS backends receive windows style file names, although they are in the unix charset (usually UTF8). This means the backend is responsible for mapping windows filename conventions to unix filename conventions if necessary - the NTVFS backends are responsible for changing effective UID before calling any OS local filesystem operations (if needed). The become_*() functions are provided to make this easier. - the NTVFS backends are responsible for resolving DFS paths - each NTVFS backend handles either disk, printer or IPC$ shares, rather than one backend handling all types - the entry points of the NTVFS backends correspond closely with basic SMB operations, wheres the old VFS was modelled directly on the POSIX filesystem interface. - the NTVFS backends are responsible for all semantic mappings, such as mapping dos file attributes, ACLs, file ownership and file times