X-Git-Url: http://git.liburcu.org/?a=blobdiff_plain;f=ltt-events.h;h=d07f1c879d2d44e4a1fa76cf6da372e723d7b527;hb=aa7c23a91f7af01415106af98b96a2a1871e97b0;hp=1419fb67219e047c6125ebf9af4183a7c8bc0a51;hpb=acd614cc4d30407efd46a528e29dadb403d25ffb;p=lttng-modules.git

diff --git a/ltt-events.h b/ltt-events.h
index 1419fb67..d07f1c87 100644
--- a/ltt-events.h
+++ b/ltt-events.h
@@ -17,6 +17,8 @@
 struct ltt_channel;
 struct ltt_session;
 struct lib_ring_buffer_ctx;
+struct perf_event;
+struct perf_event_attr;
 
 /* Type description */
 
@@ -112,10 +114,30 @@ struct lttng_event_field {
 	struct lttng_type type;
 };
 
+struct lttng_ctx_field {
+	const char *name;
+	struct lttng_type type;
+	void *callback;
+	union {
+		struct {
+			struct perf_event **e;	/* per-cpu array */
+			struct list_head head;
+			struct perf_event_attr *attr;
+		} perf_counter;
+	} u;
+};
+
+struct lttng_ctx {
+	struct lttng_ctx_field *fields;
+	unsigned int nr_fields;
+	unsigned int allocated_fields;
+};
+
 struct lttng_event_desc {
-	const struct lttng_event_field *fields;
 	const char *name;
 	void *probe_callback;
+	const struct lttng_event_ctx *ctx;	/* context */
+	const struct lttng_event_field *fields;	/* event payload */
 	unsigned int nr_fields;
 };
 
@@ -220,13 +242,11 @@ struct ltt_channel *ltt_global_channel_create(struct ltt_session *session,
 				       size_t subbuf_size, size_t num_subbuf,
 				       unsigned int switch_timer_interval,
 				       unsigned int read_timer_interval);
-void _ltt_channel_destroy(struct ltt_channel *chan);
 
 struct ltt_event *ltt_event_create(struct ltt_channel *chan,
 				   char *name,
 				   struct lttng_kernel_event *event_param,
 				   void *filter);
-int ltt_event_unregister(struct ltt_event *event);
 
 void ltt_transport_register(struct ltt_transport *transport);
 void ltt_transport_unregister(struct ltt_transport *transport);
@@ -259,6 +279,7 @@ int lttng_kprobes_register(const char *name,
 	return -ENOSYS;
 }
 
+static inline
 void lttng_kprobes_unregister(struct ltt_event *event)
 {
 }