Implement capturing payload on event notifiers

[lttng-ust.git] / include / lttng / ust-events.h

diff --git a/include/lttng/ust-events.h b/include/lttng/ust-events.h
index 41164ac348eb1edf14e83960f07027205cb037ca..44b8d4c4878819d57b2a13b7130e9c28862540d7 100644 (file)
--- a/include/lttng/ust-events.h
+++ b/include/lttng/ust-events.h
@@ -315,6 +315,7 @@ struct lttng_ctx_value {
        enum lttng_ust_dynamic_type sel;
        union {
                int64_t s64;
+               uint64_t u64;
                const char *str;
                double d;
        } u;
@@ -434,6 +435,8 @@ enum lttng_bytecode_interpreter_ret {
        /* Other bits are kept for future use. */
 };
 
+struct lttng_interpreter_output;
+
 /*
  * This structure is used in the probes. More specifically, the `filter` and
  * `node` fields are explicity used in the probes. When modifying this
@@ -446,6 +449,9 @@ struct lttng_bytecode_runtime {
        union {
                uint64_t (*filter)(void *interpreter_data,
                                const char *interpreter_stack_data);
+               uint64_t (*capture)(void *interpreter_data,
+                               const char *interpreter_stack_data,
+                               struct lttng_interpreter_output *interpreter_output);
        } interpreter_funcs;
        int link_failed;
        struct cds_list_head node;      /* list of bytecode runtime in event */
@@ -506,7 +512,9 @@ struct lttng_event_notifier {
        uint64_t user_token;
        int enabled;
        int registered;                 /* has reg'd tracepoint probe */
+       size_t num_captures;            /* Needed to allocate the msgpack array. */
        struct cds_list_head filter_bytecode_runtime_head;
+       struct cds_list_head capture_bytecode_runtime_head;
        int has_enablers_without_bytecode;
        struct cds_list_head enablers_ref_head;
        const struct lttng_event_desc *desc;
@@ -694,7 +702,8 @@ int lttng_session_statedump(struct lttng_session *session);
 void lttng_session_destroy(struct lttng_session *session);
 
 void lttng_event_notifier_notification_send(
-               struct lttng_event_notifier *event_notifier);
+               struct lttng_event_notifier *event_notifier,
+               const char *stack_data);
 
 struct lttng_channel *lttng_channel_create(struct lttng_session *session,
                                       const char *transport_name,
@@ -712,8 +721,6 @@ int lttng_channel_disable(struct lttng_channel *channel);
 int lttng_attach_context(struct lttng_ust_context *context_param,
                union ust_args *uargs,
                struct lttng_ctx **ctx, struct lttng_session *session);
-int lttng_session_context_init(struct lttng_ctx **ctx);
-
 void lttng_transport_register(struct lttng_transport *transport);
 void lttng_transport_unregister(struct lttng_transport *transport);
 
@@ -850,6 +857,8 @@ int lttng_enabler_attach_exclusion(struct lttng_enabler *enabler,
 void lttng_enabler_event_link_bytecode(struct lttng_event *event,
                struct lttng_enabler *enabler);
 void lttng_filter_sync_state(struct lttng_bytecode_runtime *runtime);
+int lttng_session_context_init(struct lttng_ctx **ctx);
+
 
 #ifdef __cplusplus
 }