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authorJeremy Allison <jra@samba.org>2006-02-10 01:43:33 +0000
committerGerald (Jerry) Carter <jerry@samba.org>2007-10-10 11:10:01 -0500
commit687e5be25e6090cf73867c3e08dab6a381c0adbc (patch)
tree69f3b79fc39b88b7e0843b9019099e70915dd5c1 /source3/lib/time.c
parente97ad44d55895d6f5d269b2c316329cbf66e15ac (diff)
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r13423: Write wrapper functions (and configure tests) so we can
always assume we can get a struct timespec out of a stat struct. This will allow us to portably move to nsec timestamps on files and directories in the file server code in future. Jeremy. (This used to be commit 07132d8796a08aa71d6719cb07b5b2c999930632)
Diffstat (limited to 'source3/lib/time.c')
-rw-r--r--source3/lib/time.c102
1 files changed, 102 insertions, 0 deletions
diff --git a/source3/lib/time.c b/source3/lib/time.c
index f87e53fef5..b6a22a3098 100644
--- a/source3/lib/time.c
+++ b/source3/lib/time.c
@@ -955,3 +955,105 @@ time_t generalized_to_unix_time(const char *str)
return timegm(&tm);
}
+
+/****************************************************************************
+ Return all the possible time fields from a stat struct as a timespec.
+****************************************************************************/
+
+struct timespec get_atimespec(SMB_STRUCT_STAT *pst)
+{
+#if !defined(HAVE_STAT_HIRES_TIMESTAMPS)
+ struct timespec ret;
+
+ /* Old system - no ns timestamp. */
+ ret.tv_sec = pst->st_atime;
+ ret.tv_nsec = 0;
+ return ret;
+#else
+#if defined(HAVE_STAT_ST_ATIM)
+ return pst->st_atim;
+#elif defined(HAVE_STAT_ST_ATIMENSEC)
+ struct timespec ret;
+ ret.tv_sec = pst->st_atime;
+ ret.tv_nsec = pst->st_atimensec;
+ return ret;
+#else
+#error CONFIGURE_ERROR_IN_DETECTING_TIMESPEC_IN_STAT
+#endif
+#endif
+}
+
+struct timespec get_mtimespec(SMB_STRUCT_STAT *pst)
+{
+#if !defined(HAVE_STAT_HIRES_TIMESTAMPS)
+ struct timespec ret;
+
+ /* Old system - no ns timestamp. */
+ ret.tv_sec = pst->st_mtime;
+ ret.tv_nsec = 0;
+ return ret;
+#else
+#if defined(HAVE_STAT_ST_MTIM)
+ return pst->st_mtim;
+#elif defined(HAVE_STAT_ST_MTIMENSEC)
+ struct timespec ret;
+ ret.tv_sec = pst->st_mtime;
+ ret.tv_nsec = pst->st_mtimensec;
+ return ret;
+#else
+#error CONFIGURE_ERROR_IN_DETECTING_TIMESPEC_IN_STAT
+#endif
+#endif
+}
+
+struct timespec get_ctimespec(SMB_STRUCT_STAT *pst)
+{
+#if !defined(HAVE_STAT_HIRES_TIMESTAMPS)
+ struct timespec ret;
+
+ /* Old system - no ns timestamp. */
+ ret.tv_sec = pst->ctime;
+ ret.tv_nsec = 0;
+ return ret;
+#else
+#if defined(HAVE_STAT_ST_CTIM)
+ return pst->st_ctim;
+#elif defined(HAVE_STAT_ST_CTIMENSEC)
+ struct timespec ret;
+ ret.tv_sec = pst->st_ctime;
+ ret.tv_nsec = pst->st_ctimensec;
+ return ret;
+#else
+#error CONFIGURE_ERROR_IN_DETECTING_TIMESPEC_IN_STAT
+#endif
+#endif
+}
+
+#if 0
+/****************************************************************************
+ Return the best approximation to a 'create time' under UNIX from a stat
+ structure.
+****************************************************************************/
+
+struct timespec get_create_timespec(SMB_STRUCT_STAT *st,BOOL fake_dirs)
+{
+ time_t ret, ret1;
+
+ if(S_ISDIR(st->st_mode) && fake_dirs) {
+ return (time_t)315493200L; /* 1/1/1980 */
+ }
+
+ ret = MIN(st->st_ctime, st->st_mtime);
+ ret1 = MIN(ret, st->st_atime);
+
+ if(ret1 != (time_t)0) {
+ return ret1;
+ }
+
+ /*
+ * One of ctime, mtime or atime was zero (probably atime).
+ * Just return MIN(ctime, mtime).
+ */
+ return ret;
+}
+#endif