Add unconditional online callbacks

Currently online callbacks are only executed if the backend was offline
before. This patch add a new class of callback which are always called
if the backend gets a request to go online.

They can be used e.g. to reset timeouts until a more sophisticated method
(OpenLMI, sssctl) is available.

1 files changed, 9 insertions, 0 deletions

diff --git a/src/providers/dp_backend.h b/src/providers/dp_backend.h
index 76590a39e..fc71b60ca 100644
--- a/src/providers/dp_backend.h
+++ b/src/providers/dp_backend.h
@@ -126,6 +126,11 @@ struct be_ctx {
     bool run_online_cb;
     struct be_cb *offline_cb_list;
     struct be_cb *reconnect_cb_list;
+    /* In contrast to online_cb_list which are only run if the backend is
+     * offline the unconditional_online_cb_list should be run whenever the
+     * backend receives a request to go online. The typical use case is to
+     * reset timers independenly of the state of the backend. */
+    struct be_cb *unconditional_online_cb_list;
 
     struct be_offline_status offstat;
 
@@ -200,6 +205,10 @@ int be_add_online_cb(TALLOC_CTX *mem_ctx,
                      void *pvt,
                      struct be_cb **online_cb);
 void be_run_online_cb(struct be_ctx *be);
+int be_add_unconditional_online_cb(TALLOC_CTX *mem_ctx, struct be_ctx *ctx,
+                                   be_callback_t cb, void *pvt,
+                                   struct be_cb **unconditional_online_cb);
+void be_run_unconditional_online_cb(struct be_ctx *be);
 
 int be_add_offline_cb(TALLOC_CTX *mem_ctx,
                      struct be_ctx *ctx,