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 36b2f2270eef69bedd70aa570027da7f61660f22..8da147230e22a928ec89b7b33f37c9a84d02cc8c 100644 (file)
--- a/ltt-sessiond/trace.h
+++ b/ltt-sessiond/trace.h
@@ -19,18 +19,77 @@
 #ifndef _LTT_TRACE_H
 #define _LTT_TRACE_H
 
-#include "session.h"
+#include <limits.h>
+#include <urcu/list.h>
 
-/* LTTng trace representation */
-struct ltt_lttng_trace {
+#include <lttng/lttng.h>
+
+#include "lttng-kernel.h"
+
+/* Kernel event list */
+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;
+};
+
+/* Kernel channel */
+struct ltt_kernel_channel {
+       int fd;
+       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;
-       char trace_name[NAME_MAX];
-       struct cds_list_head marker_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;
+       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 */
 struct ltt_ust_trace {
        struct cds_list_head list;
+       char name[NAME_MAX];
        int shmid;
        pid_t pid;
        struct cds_list_head markers;
@@ -42,6 +101,23 @@ struct ltt_ust_marker {
        char *channel;
 };
 
-struct ltt_ust_trace *find_session_ust_trace_by_pid(struct ltt_session *session, pid_t pid);
+/*
+ * 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 */