bus: reuse more code

[elogind.git] / src / shared / time-util.c

diff --git a/src/shared/time-util.c b/src/shared/time-util.c
index 13d57ba5cd70ecaa595065406bfb16ff98f2cbd6..e192d5ef58d712302231575fce57808f7176ef5e 100644 (file)
--- a/src/shared/time-util.c
+++ b/src/shared/time-util.c
@@ -46,6 +46,11 @@ dual_timestamp* dual_timestamp_from_realtime(dual_timestamp *ts, usec_t u) {
         int64_t delta;
         assert(ts);
 
+        if (u == (usec_t) -1) {
+                ts->realtime = ts->monotonic = (usec_t) -1;
+                return ts;
+        }
+
         ts->realtime = u;
 
         if (u == 0)
@@ -64,6 +69,27 @@ dual_timestamp* dual_timestamp_from_realtime(dual_timestamp *ts, usec_t u) {
         return ts;
 }
 
+dual_timestamp* dual_timestamp_from_monotonic(dual_timestamp *ts, usec_t u) {
+        int64_t delta;
+        assert(ts);
+
+        if (u == (usec_t) -1) {
+                ts->realtime = ts->monotonic = (usec_t) -1;
+                return ts;
+        }
+
+        ts->monotonic = u;
+        delta = (int64_t) now(CLOCK_MONOTONIC) - (int64_t) u;
+
+        ts->realtime = now(CLOCK_REALTIME);
+        if ((int64_t) ts->realtime > delta)
+                ts->realtime -= delta;
+        else
+                ts->realtime = 0;
+
+        return ts;
+}
+
 usec_t timespec_load(const struct timespec *ts) {
         assert(ts);
 
@@ -204,6 +230,8 @@ char *format_timespan(char *buf, size_t l, usec_t t) {
                 const char *suffix;
                 usec_t usec;
         } table[] = {
+                { "y", USEC_PER_YEAR },
+                { "month", USEC_PER_MONTH },
                 { "w", USEC_PER_WEEK },
                 { "d", USEC_PER_DAY },
                 { "h", USEC_PER_HOUR },