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timestamps: nfstime4 helper functions

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Signed-off-by: Casey Bodley <cbodley@citi.umich.edu>
This commit is contained in:
Casey Bodley 2010-10-12 09:43:00 -04:00
parent e67560fd4a
commit a8eca1ca7b
1 changed files with 32 additions and 0 deletions
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32
daemon/util.h
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@ -93,6 +93,7 @@ void nfs_to_standard_info(
IN const nfs41_file_info *info,
OUT PFILE_STANDARD_INFO std_out);
/* nfstime4 */
void file_time_to_nfs_time(
IN const PLARGE_INTEGER file_time,
OUT nfstime4 *nfs_time);
@ -104,6 +105,37 @@ void get_file_time(
void get_nfs_time(
OUT nfstime4 *nfs_time);
static __inline void nfstime_normalize(
IN OUT nfstime4 *nfstime)
{
/* return time in normalized form (0 <= nsec < 1s) */
while ((int32_t)nfstime->nseconds < 0) {
nfstime->nseconds += 1000000000;
nfstime->seconds--;
}
}
static __inline void nfstime_diff(
IN const nfstime4 *lhs,
IN const nfstime4 *rhs,
OUT nfstime4 *result)
{
/* result = lhs - rhs */
result->seconds = lhs->seconds - rhs->seconds;
result->nseconds = lhs->nseconds - rhs->nseconds;
nfstime_normalize(result);
}
static __inline void nfstime_abs(
IN const nfstime4 *nt,
OUT nfstime4 *result)
{
if (nt->seconds < 0) {
const nfstime4 zero = { 0, 0 };
nfstime_diff(&zero, nt, result); /* result = 0 - nt */
} else if (result != nt)
memcpy(result, nt, sizeof(nfstime4));
}
int create_silly_rename(
IN nfs41_abs_path *path,
IN const nfs41_fh *fh,