Refactoring: introduce list head from enabler getter

[lttng-modules.git] / include / lttng / events-internal.h

diff --git a/include/lttng/events-internal.h b/include/lttng/events-internal.h
index 5a1b91604efae411dd3e42c9a2be196090c748a7..21d887f03f80f65410809540e6ae9e4543ac01d1 100644 (file)
--- a/include/lttng/events-internal.h
+++ b/include/lttng/events-internal.h
@@ -79,6 +79,7 @@ struct lttng_kernel_event_common_private {
        struct list_head filter_bytecode_runtime_head;
 
        struct hlist_node hlist_node;                   /* node in events hash table */
+       struct list_head node;                          /* node in event list */
 
        enum lttng_kernel_abi_instrumentation instrumentation;
        /* Selected by instrumentation */
@@ -102,7 +103,6 @@ struct lttng_kernel_event_recorder_private {
        struct lttng_kernel_event_common_private parent;
 
        struct lttng_kernel_event_recorder *pub;        /* Public event interface */
-       struct list_head node;                          /* Event recorder list */
        struct lttng_kernel_ctx *ctx;
        unsigned int id;
        unsigned int metadata_dumped:1;
@@ -115,7 +115,6 @@ struct lttng_kernel_event_notifier_private {
        struct lttng_event_notifier_group *group;       /* weak ref */
        size_t num_captures;                            /* Needed to allocate the msgpack array. */
        uint64_t error_counter_index;
-       struct list_head node;                          /* Event notifier list */
        struct list_head capture_bytecode_runtime_head;
 };
 
@@ -615,6 +614,27 @@ struct lttng_event_ht *lttng_get_event_ht_from_enabler(struct lttng_event_enable
        }
 }
 
+static inline
+struct list_head *lttng_get_event_list_head_from_enabler(struct lttng_event_enabler_common *event_enabler)
+{
+       switch (event_enabler->enabler_type) {
+       case LTTNG_EVENT_ENABLER_TYPE_RECORDER:
+       {
+               struct lttng_event_recorder_enabler *event_recorder_enabler =
+                       container_of(event_enabler, struct lttng_event_recorder_enabler, parent);
+               return &event_recorder_enabler->chan->parent.session->priv->events;
+       }
+       case LTTNG_EVENT_ENABLER_TYPE_NOTIFIER:
+       {
+               struct lttng_event_notifier_enabler *event_notifier_enabler =
+                       container_of(event_enabler, struct lttng_event_notifier_enabler, parent);
+               return &event_notifier_enabler->group->event_notifiers_head;
+       }
+       default:
+               return NULL;
+       }
+}
+
 int lttng_context_init(void);
 void lttng_context_exit(void);
 int lttng_kernel_context_append(struct lttng_kernel_ctx **ctx_p,