Implement "now" and "obj.lastuse", with a note to the effect that the use

of timestamps and clock_gettime() throughout Varnish needs reviewing (as
per IRC discussion with phk)


git-svn-id: http://www.varnish-cache.org/svn/trunk/varnish-cache@1630 d4fa192b-c00b-0410-8231-f00ffab90ce4

bin/varnishd/cache_vrt.c

@@ -304,3 +304,28 @@ VRT_l_req_hash(struct sess *sp, const char *str)
 	sp->hash_e[l] = '#';
 	sp->hash_e += l + 1;
 }
+
+/*--------------------------------------------------------------------*/
+
+double
+VRT_r_now(struct sess *sp)
+{
+	struct timespec now;
+
+	(void)sp;
+	/* XXX use of clock_gettime() needs review */
+	clock_gettime(CLOCK_MONOTONIC, &now);
+	return (now.tv_sec);
+}
+
+double
+VRT_r_obj_lastuse(struct sess *sp)
+{
+	struct timespec now;
+
+	CHECK_OBJ_NOTNULL(sp, SESS_MAGIC);
+	CHECK_OBJ_NOTNULL(sp->obj, OBJECT_MAGIC);	/* XXX */
+	/* XXX use of clock_gettime() needs review */
+	clock_gettime(CLOCK_MONOTONIC, &now);
+	return (now.tv_sec - sp->obj->lru_stamp);
+}