virtual: struct virtual_mailbox_vfuncs - Add get_virtual_backend_last_uid()

diff --git a/src/lib-storage/mail-storage-private.h b/src/lib-storage/mail-storage-private.h
index 2d40b97c2c6fd846d2f4be857f5184b26c5964bf..1438ff8e6d903e83702c088436aa0e4b90cc84d3 100644 (file)
--- a/src/lib-storage/mail-storage-private.h
+++ b/src/lib-storage/mail-storage-private.h
@@ -226,6 +226,8 @@ struct virtual_mailbox_vfuncs {
        void (*get_virtual_backend_boxes)(struct mailbox *box,
                                          ARRAY_TYPE(mailboxes) *mailboxes,
                                          bool only_with_msgs);
+       uint32_t (*get_virtual_backend_last_uid)(struct mailbox *box,
+                                                struct mailbox *bbox);
 };
 
 struct mailbox_vfuncs {

diff --git a/src/plugins/virtual/virtual-storage.c b/src/plugins/virtual/virtual-storage.c
index 33c38b9fedd1ba652219af5de2d1c7a7144bd4fc..62173273959bf249078c65b9a64546e585bbf574 100644 (file)
--- a/src/plugins/virtual/virtual-storage.c
+++ b/src/plugins/virtual/virtual-storage.c
@@ -861,6 +861,27 @@ virtual_get_virtual_backend_boxes(struct mailbox *box,
        }
 }
 
+/* This function is meant to be called only with mailboxes retrieved from
+   virtual_get_virtual_backend_boxes() and to be invoked with the same box
+   argument as used in that function. */
+static uint32_t
+virtual_get_virtual_backend_last_uid(struct mailbox *box, struct mailbox *bbox)
+{
+       struct virtual_mailbox *mbox =
+               container_of(box, struct virtual_mailbox, box);
+
+       struct virtual_backend_box *vbox;
+       array_foreach_elem(&mbox->backend_boxes, vbox) {
+               if (vbox->box == bbox) {
+                       i_assert(vbox->sync_next_uid > 0);
+                       return vbox->sync_next_uid - 1;
+               }
+       }
+
+       i_panic("Backend box '%s' unexpectedly not found in virtual box '%s's backends",
+               bbox->name, box->name);
+}
+
 static bool virtual_is_inconsistent(struct mailbox *box)
 {
        struct virtual_mailbox *mbox =
@@ -965,4 +986,5 @@ struct virtual_mailbox_vfuncs virtual_mailbox_vfuncs = {
        .get_virtual_uids = virtual_get_virtual_uids,
        .get_virtual_uid_map = virtual_get_virtual_uid_map,
        .get_virtual_backend_boxes = virtual_get_virtual_backend_boxes,
+       .get_virtual_backend_last_uid = virtual_get_virtual_backend_last_uid,
 };