char payload[];
} LTTNG_PACKED;
+struct lttng_event_context_comm {
+ uint32_t type;
+ /*
+ * Depending on the type.
+ * For:
+ * - LTTNG_EVENT_CONTEXT_APP_CONTEXT.
+ *
+ * -> struct lttng_event_context_app_comm
+ *
+ * For
+ * - LTTNG_EVENT_CONTEXT_PERF_COUNTER,
+ * - LTTNG_EVENT_CONTEXT_PERF_CPU_COUNTER,
+ * - LTTNG_EVENT_CONTEXT_PERF_THREAD_COUNTER.
+ *
+ * -> struct lttng_event_context_perf_counter_comm
+ *
+ * Other type -> no payload.
+ */
+ char payload[];
+} LTTNG_PACKED;
+
+struct lttng_event_context_perf_counter_comm {
+ uint32_t type;
+ uint64_t config;
+ /* Includes terminator `\0`. */
+ uint32_t name_len;
+ /*
+ * char name [name_len]
+ */
+ char payload[];
+} LTTNG_PACKED;
+
+struct lttng_event_context_app_comm {
+ /* Includes terminator `\0`. */
+ uint32_t provider_name_len;
+ /* Includes terminator `\0`. */
+ uint32_t ctx_name_len;
+ /*
+ * provider name [provider_name_len]
+ * ctx name [ctx_name_len]
+ */
+ char payload[];
+} LTTNG_PACKED;
+
struct lttng_event_extended {
/*
* exclusions and filter_expression are only set when the lttng_event
struct lttng_dynamic_buffer *buf,
int *fd_to_send);
+LTTNG_HIDDEN
+ssize_t lttng_event_context_create_from_buffer(
+ const struct lttng_buffer_view *view,
+ struct lttng_event_context **event_ctx);
+
+LTTNG_HIDDEN
+int lttng_event_context_serialize(struct lttng_event_context *context,
+ struct lttng_dynamic_buffer *buf);
+
+LTTNG_HIDDEN
+void lttng_event_context_destroy(struct lttng_event_context *context);
+
LTTNG_HIDDEN
enum lttng_error_code lttng_events_create_and_flatten_from_buffer(
const struct lttng_buffer_view *view,