shared: split out code for adding multiple names to sd_bus_track object

Let's introduce a new call bus_track_add_name_many() that adds a string list to
a tracking object.

3 files changed, 22 insertions, 11 deletions

diff --git a/src/core/dbus.c b/src/core/dbus.c
index 070974fe66..ed4697c37e 100644
--- a/src/core/dbus.c
+++ b/src/core/dbus.c
@@ -1185,7 +1185,6 @@ void bus_track_serialize(sd_bus_track *t, FILE *f, const char *prefix) {
 }
 
 int bus_track_coldplug(Manager *m, sd_bus_track **t, bool recursive, char **l) {
-        char **i;
         int r = 0;
 
         assert(m);
@@ -1207,16 +1206,7 @@ int bus_track_coldplug(Manager *m, sd_bus_track **t, bool recursive, char **l) {
         if (r < 0)
                 return r;
 
-        r = 0;
-        STRV_FOREACH(i, l) {
-                int k;
-
-                k = sd_bus_track_add_name(*t, *i);
-                if (k < 0)
-                        r = k;
-        }
-
-        return r;
+        return bus_track_add_name_many(*t, l);
 }
 
 int bus_verify_manage_units_async(Manager *m, sd_bus_message *call, sd_bus_error *error) {
diff --git a/src/shared/bus-util.c b/src/shared/bus-util.c
index e7b1b1cb20..6aebe18fc0 100644
--- a/src/shared/bus-util.c
+++ b/src/shared/bus-util.c
@@ -1583,3 +1583,22 @@ int bus_property_get_rlimit(
 
         return sd_bus_message_append(reply, "t", u);
 }
+
+int bus_track_add_name_many(sd_bus_track *t, char **l) {
+        int r = 0;
+        char **i;
+
+        assert(t);
+
+        /* Continues adding after failure, and returns the first failure. */
+
+        STRV_FOREACH(i, l) {
+                int k;
+
+                k = sd_bus_track_add_name(t, *i);
+                if (k < 0 && r >= 0)
+                        r = k;
+        }
+
+        return r;
+}
diff --git a/src/shared/bus-util.h b/src/shared/bus-util.h
index 934e0b5b77..af5f133912 100644
--- a/src/shared/bus-util.h
+++ b/src/shared/bus-util.h
@@ -159,3 +159,5 @@ int bus_path_encode_unique(sd_bus *b, const char *prefix, const char *sender_id,
 int bus_path_decode_unique(const char *path, const char *prefix, char **ret_sender, char **ret_external);
 
 int bus_property_get_rlimit(sd_bus *bus, const char *path, const char *interface, const char *property, sd_bus_message *reply, void *userdata, sd_bus_error *error);
+
+int bus_track_add_name_many(sd_bus_track *t, char **l);