X-Git-Url: https://git.lttng.org/?a=blobdiff_plain;f=ltt-sessiond%2Ftrace.h;h=444126ba01e4322c7727a3341f85fd13467e8e90;hb=33a2b85433875769e92ca44a680c46b9498f5174;hp=f0d25c89400db78de651f36850a78db95ebb1c8b;hpb=9e78d6ae219789dee9c96f35f190d6166ef389c3;p=lttng-tools.git

diff --git a/ltt-sessiond/trace.h b/ltt-sessiond/trace.h
index f0d25c894..444126ba0 100644
--- a/ltt-sessiond/trace.h
+++ b/ltt-sessiond/trace.h
@@ -23,6 +23,13 @@
 #include <urcu/list.h>
 #include "lttng-kernel.h"
 
+/* Default kernel channel attributes */
+#define DEFAULT_KERNEL_OVERWRITE            0
+#define DEFAULT_KERNEL_SUBBUF_SIZE          4096    /* bytes */
+#define DEFAULT_KERNEL_SUBBUF_NUM           8       /* Must always be a power of 2 */
+#define DEFAULT_KERNEL_SWITCH_TIMER         0       /* usec */
+#define DEFAULT_KERNEL_READ_TIMER           200     /* usec */
+
 /* Kernel event list */
 struct ltt_kernel_event_list {
 	struct cds_list_head head;
@@ -96,4 +103,24 @@ struct ltt_ust_marker {
 	char *channel;
 };
 
+/*
+ * Create functions malloc() the data structure.
+ */
+struct ltt_kernel_session *trace_create_kernel_session(void);
+struct ltt_kernel_channel *trace_create_kernel_channel(void);
+struct ltt_kernel_event *trace_create_kernel_event(char *name,
+		enum lttng_kernel_instrumentation type);
+struct ltt_kernel_metadata *trace_create_kernel_metadata(void);
+struct ltt_kernel_stream *trace_create_kernel_stream(void);
+
+/*
+ * Destroy functions free() the data structure and remove from linked list if
+ * it's applies.
+ */
+void trace_destroy_kernel_session(struct ltt_kernel_session *session);
+void trace_destroy_kernel_metadata(struct ltt_kernel_metadata *metadata);
+void trace_destroy_kernel_channel(struct ltt_kernel_channel *channel);
+void trace_destroy_kernel_event(struct ltt_kernel_event *event);
+void trace_destroy_kernel_stream(struct ltt_kernel_stream *stream);
+
 #endif /* _LTT_TRACE_H */