Add disable kernel event support

[lttng-tools.git] / ltt-sessiond / trace.h

diff --git a/ltt-sessiond/trace.h b/ltt-sessiond/trace.h
index 5b4ff68ff3a0c2718d90c5f5c8f377551e81e052..8da147230e22a928ec89b7b33f37c9a84d02cc8c 100644 (file)
--- a/ltt-sessiond/trace.h
+++ b/ltt-sessiond/trace.h
@@ -19,8 +19,11 @@
 #ifndef _LTT_TRACE_H
 #define _LTT_TRACE_H
 
-#include "ltt-sessiond.h"
-#include "session.h"
+#include <limits.h>
+#include <urcu/list.h>
+
+#include <lttng/lttng.h>
+
 #include "lttng-kernel.h"
 
 /* Kernel event list */
@@ -28,9 +31,20 @@ struct ltt_kernel_event_list {
        struct cds_list_head head;
 };
 
+/* Channel stream list */
+struct ltt_kernel_stream_list {
+       struct cds_list_head head;
+};
+
+/* Channel list */
+struct ltt_kernel_channel_list {
+       struct cds_list_head head;
+};
+
 /* Kernel event */
 struct ltt_kernel_event {
        int fd;
+       int enabled;
        struct lttng_kernel_event *event;
        struct cds_list_head list;
 };
@@ -38,14 +52,38 @@ struct ltt_kernel_event {
 /* Kernel channel */
 struct ltt_kernel_channel {
        int fd;
-       struct lttng_kernel_channel *channel;
+       char *pathname;
+       unsigned int stream_count;
+       struct lttng_channel *channel;
        struct ltt_kernel_event_list events_list;
+       struct ltt_kernel_stream_list stream_list;
+       struct cds_list_head list;
+};
+
+/* Metadata */
+struct ltt_kernel_metadata {
+       int fd;
+       char *pathname;
+       struct lttng_channel *conf;
+};
+
+/* Channel stream */
+struct ltt_kernel_stream {
+       int fd;
+       char *pathname;
+       int state;
+       struct cds_list_head list;
 };
 
 /* Kernel session */
 struct ltt_kernel_session {
        int fd;
-       struct ltt_kernel_channel *channel;
+       int metadata_stream_fd;
+       int kconsumer_fds_sent;
+       unsigned int channel_count;
+       unsigned int stream_count_global;
+       struct ltt_kernel_metadata *metadata;
+       struct ltt_kernel_channel_list channel_list;
 };
 
 /* UST trace representation */
@@ -63,10 +101,23 @@ struct ltt_ust_marker {
        char *channel;
 };
 
-int get_trace_count_per_session(struct ltt_session *session);
-void get_traces_per_session(struct ltt_session *session, struct lttng_trace *traces);
-int ust_create_trace(struct command_ctx *cmd_ctx);
-int ust_start_trace(struct command_ctx *cmd_ctx);
-int ust_stop_trace(struct command_ctx *cmd_ctx);
+/*
+ * Create functions malloc() the data structure.
+ */
+struct ltt_kernel_session *trace_create_kernel_session(void);
+struct ltt_kernel_channel *trace_create_kernel_channel(struct lttng_channel *chan);
+struct ltt_kernel_event *trace_create_kernel_event(struct lttng_event *ev);
+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 */