}
#if 0 /// UNNEEDED by elogind
+int parse_sec_fix_0(const char *t, usec_t *usec) {
+ t += strspn(t, WHITESPACE);
+ if (streq(t, "0")) {
+ *usec = USEC_INFINITY;
+ return 0;
+ }
+
+ return parse_sec(t, usec);
+}
+
int parse_nsec(const char *t, nsec_t *nsec) {
static const struct {
const char *suffix;
return DIV_ROUND_UP(u , USEC_PER_SEC / hz);
}
+
+usec_t usec_shift_clock(usec_t x, clockid_t from, clockid_t to) {
+ usec_t a, b;
+
+ if (x == USEC_INFINITY)
+ return USEC_INFINITY;
+ if (map_clock_id(from) == map_clock_id(to))
+ return x;
+
+ a = now(from);
+ b = now(to);
+
+ if (x > a)
+ /* x lies in the future */
+ return usec_add(b, usec_sub_unsigned(x, a));
+ else
+ /* x lies in the past */
+ return usec_sub_unsigned(b, usec_sub_unsigned(a, x));
+}
#endif // 0