+
+/*
+ * Needed by comm layer.
+ */
+struct lttng_enum *lttng_ust_enum_get_from_desc(struct lttng_session *session,
+ const struct lttng_enum_desc *enum_desc)
+{
+ struct lttng_enum *_enum;
+ struct cds_hlist_head *head;
+ struct cds_hlist_node *node;
+ size_t name_len = strlen(enum_desc->name);
+ uint32_t hash;
+
+ hash = jhash(enum_desc->name, name_len, 0);
+ head = &session->enums_ht.table[hash & (LTTNG_UST_ENUM_HT_SIZE - 1)];
+ cds_hlist_for_each_entry(_enum, node, head, hlist) {
+ assert(_enum->desc);
+ if (_enum->desc == enum_desc)
+ return _enum;
+ }
+ return NULL;
+}
+
+size_t lttng_ust_dummy_get_size(struct lttng_ctx_field *field, size_t offset)
+{
+ size_t size = 0;
+
+ size += lib_ring_buffer_align(offset, lttng_alignof(char));
+ size += sizeof(char); /* tag */
+ return size;
+}
+
+void lttng_ust_dummy_record(struct lttng_ctx_field *field,
+ struct lttng_ust_lib_ring_buffer_ctx *ctx,
+ struct lttng_channel *chan)
+{
+ char sel_char = (char) LTTNG_UST_DYNAMIC_TYPE_NONE;
+
+ lib_ring_buffer_align_ctx(ctx, lttng_alignof(sel_char));
+ chan->ops->event_write(ctx, &sel_char, sizeof(sel_char));
+}
+
+void lttng_ust_dummy_get_value(struct lttng_ctx_field *field,
+ struct lttng_ctx_value *value)
+{
+ value->sel = LTTNG_UST_DYNAMIC_TYPE_NONE;
+}
+
+int lttng_context_is_app(const char *name)
+{
+ if (strncmp(name, "$app.", strlen("$app.")) != 0) {
+ return 0;
+ }
+ return 1;
+}