Implement LTTng-UST perf counters support

[lttng-tools.git] / src / bin / lttng-sessiond / trace-ust.h

diff --git a/src/bin/lttng-sessiond/trace-ust.h b/src/bin/lttng-sessiond/trace-ust.h
index 9f8d182b3cf610551df792b8cda82646c453110a..86f8d40b1de0d6d96850621bca1a2a6bcefb80b0 100644 (file)
--- a/src/bin/lttng-sessiond/trace-ust.h
+++ b/src/bin/lttng-sessiond/trace-ust.h
@@ -49,8 +49,9 @@ struct ltt_ust_event {
        unsigned int enabled;
        struct lttng_ust_event attr;
        struct lttng_ht_node_str node;
+       char *filter_expression;
        struct lttng_ust_filter_bytecode *filter;
-       const struct lttng_event_exclusion *exclusion;
+       struct lttng_event_exclusion *exclusion;
 };
 
 /* UST channel */
@@ -67,15 +68,6 @@ struct ltt_ust_channel {
        uint64_t tracefile_count;
 };
 
-/* UST Metadata */
-struct ltt_ust_metadata {
-       int handle;
-       struct lttng_ust_object_data *obj;
-       char pathname[PATH_MAX];              /* Trace file path name */
-       struct lttng_ust_channel_attr attr;
-       struct lttng_ust_object_data *stream_obj;
-};
-
 /* UST domain global (LTTNG_DOMAIN_UST) */
 struct ltt_ust_domain_global {
        struct lttng_ht *channels;
@@ -85,12 +77,13 @@ struct ltt_ust_domain_global {
 /* UST session */
 struct ltt_ust_session {
        uint64_t id;    /* Unique identifier of session */
-       int start_trace;
        struct ltt_ust_domain_global domain_global;
        struct jul_domain domain_jul;
        /* UID/GID of the user owning the session */
        uid_t uid;
        gid_t gid;
+       /* Is the session active meaning has is been started or stopped. */
+       unsigned int active:1;
        /*
         * Two consumer_output object are needed where one is for the current
         * output object and the second one is the temporary object used to store
@@ -116,6 +109,9 @@ struct ltt_ust_session {
        unsigned int snapshot_mode;
        unsigned int has_non_default_channel;
        unsigned int live_timer_interval;       /* usec */
+
+       /* Metadata channel attributes. */
+       struct lttng_ust_channel_attr metadata_attr;
 };
 
 /*
@@ -168,11 +164,13 @@ struct ltt_ust_channel *trace_ust_find_channel_by_name(struct lttng_ht *ht,
 struct ltt_ust_session *trace_ust_create_session(uint64_t session_id);
 struct ltt_ust_channel *trace_ust_create_channel(struct lttng_channel *attr);
 struct ltt_ust_event *trace_ust_create_event(struct lttng_event *ev,
+               char *filter_expression,
                struct lttng_filter_bytecode *filter,
                struct lttng_event_exclusion *exclusion);
-struct ltt_ust_metadata *trace_ust_create_metadata(char *path);
 struct ltt_ust_context *trace_ust_create_context(
                struct lttng_event_context *ctx);
+int trace_ust_match_context(struct ltt_ust_context *uctx,
+               struct lttng_event_context *ctx);
 void trace_ust_delete_channel(struct lttng_ht *ht,
                struct ltt_ust_channel *channel);
 
@@ -181,7 +179,6 @@ void trace_ust_delete_channel(struct lttng_ht *ht,
  * it's applies.
  */
 void trace_ust_destroy_session(struct ltt_ust_session *session);
-void trace_ust_destroy_metadata(struct ltt_ust_metadata *metadata);
 void trace_ust_destroy_channel(struct ltt_ust_channel *channel);
 void trace_ust_destroy_event(struct ltt_ust_event *event);
 
@@ -216,27 +213,17 @@ struct ltt_ust_channel *trace_ust_create_channel(struct lttng_channel *attr)
 }
 static inline
 struct ltt_ust_event *trace_ust_create_event(struct lttng_event *ev,
+               const char *filter_expression,
                struct lttng_filter_bytecode *filter,
                struct lttng_event_exclusion *exclusion)
 {
        return NULL;
 }
-static inline
-struct ltt_ust_metadata *trace_ust_create_metadata(char *path)
-{
-       return NULL;
-}
-
 static inline
 void trace_ust_destroy_session(struct ltt_ust_session *session)
 {
 }
 
-static inline
-void trace_ust_destroy_metadata(struct ltt_ust_metadata *metadata)
-{
-}
-
 static inline
 void trace_ust_destroy_channel(struct ltt_ust_channel *channel)
 {
@@ -252,6 +239,12 @@ struct ltt_ust_context *trace_ust_create_context(
 {
        return NULL;
 }
+static inline
+int trace_ust_match_context(struct ltt_ust_context *uctx,
+               struct lttng_event_context *ctx)
+{
+       return 0;
+}
 static inline struct ltt_ust_event *trace_ust_find_event(struct lttng_ht *ht,
                char *name, struct lttng_filter_bytecode *filter, int loglevel,
                struct lttng_event_exclusion *exclusion)