+int deserialize_timestamp_value(const char *value, usec_t *timestamp) {
+ int r;
+
+ assert(value);
+
+ r = safe_atou64(value, timestamp);
+
+ if (r < 0)
+ return log_debug_errno(r, "Failed to parse finish timestamp value \"%s\": %m", value);
+
+ return r;
+}
+