X-Git-Url: https://git.lttng.org/?a=blobdiff_plain;f=src%2Fbin%2Flttng-relayd%2Flttng-relayd.h;h=3c8c26c29ec0e6fe4d54b2ee42303895913fff21;hb=7d2f74525fbda4dcc744f33ea26c911545b5df13;hp=c60280e0fd9c717dc0bd0d1e975236ca0e73bed5;hpb=1c20f0e29cbf8627bfb1ff444572d52d6655c4e2;p=lttng-tools.git

diff --git a/src/bin/lttng-relayd/lttng-relayd.h b/src/bin/lttng-relayd/lttng-relayd.h
index c60280e0f..3c8c26c29 100644
--- a/src/bin/lttng-relayd/lttng-relayd.h
+++ b/src/bin/lttng-relayd/lttng-relayd.h
@@ -20,11 +20,15 @@
 #define LTTNG_RELAYD_H
 
 #define _LGPL_SOURCE
+#include <limits.h>
 #include <urcu.h>
 #include <urcu/wfqueue.h>
+
 #include <common/hashtable/hashtable.h>
 #include <common/index/lttng-index.h>
 
+#include "ctf-trace.h"
+
 /*
  * Queue used to enqueue relay requests
  */
@@ -34,8 +38,10 @@ struct relay_cmd_queue {
 };
 
 enum connection_type {
-	RELAY_DATA,
-	RELAY_CONTROL,
+	RELAY_DATA                  = 1,
+	RELAY_CONTROL               = 2,
+	RELAY_VIEWER_COMMAND        = 3,
+	RELAY_VIEWER_NOTIFICATION   = 4,
 };
 
 /*
@@ -49,6 +55,23 @@ struct relay_session {
 	 */
 	uint64_t id;
 	struct lttcomm_sock *sock;
+	char session_name[NAME_MAX];
+	char hostname[HOST_NAME_MAX];
+	uint32_t live_timer;
+	struct lttng_ht_node_ulong session_n;
+	struct rcu_head rcu_node;
+	uint32_t viewer_attached;
+	uint32_t stream_count;
+	/* Tell if this session is for a snapshot or not. */
+	unsigned int snapshot:1;
+
+	/*
+	 * Indicate version protocol for this session. This is especially useful
+	 * for the data thread that has no idea which version it operates on since
+	 * linking control/data sockets is non trivial.
+	 */
+	uint64_t minor;
+	uint64_t major;
 };
 
 /*
@@ -63,6 +86,8 @@ struct relay_stream {
 	int fd;
 	/* FD on which to write the index data. */
 	int index_fd;
+	/* FD on which to read the index data for the viewer. */
+	int read_index_fd;
 
 	char *path_name;
 	char *channel_name;
@@ -72,11 +97,57 @@ struct relay_stream {
 	uint64_t tracefile_count;
 	uint64_t tracefile_count_current;
 
+	uint64_t total_index_received;
+	struct relay_viewer_stream *viewer_stream;
+	uint64_t last_net_seq_num;
+	struct lttng_ht_node_str ctf_trace_node;
+
+	/*
+	 * To protect from concurrent read/update between the
+	 * streaming-side and the viewer-side.
+	 * This lock must be held, we reading/updating the
+	 * ctf_trace pointer.
+	 */
+	pthread_mutex_t lock;
+
+	struct ctf_trace *ctf_trace;
+	/*
+	 * If the stream is inactive, this field is updated with the live beacon
+	 * timestamp end, when it is active, this field == -1ULL.
+	 */
+	uint64_t beacon_ts_end;
+
 	/* Information telling us when to close the stream  */
 	unsigned int close_flag:1;
-	uint64_t last_net_seq_num;
 	/* Indicate if the stream was initialized for a data pending command. */
 	unsigned int data_pending_check_done:1;
+	unsigned int metadata_flag:1;
+};
+
+/*
+ * Shadow copy of the relay_stream structure for the viewer side.  The only
+ * fields updated by the writer (streaming side) after allocation are :
+ * total_index_received and close_flag. Everything else is updated by the
+ * reader (viewer side).
+ */
+struct relay_viewer_stream {
+	uint64_t stream_handle;
+	uint64_t session_id;
+	int read_fd;
+	int index_read_fd;
+	char *path_name;
+	char *channel_name;
+	uint64_t last_sent_index;
+	uint64_t total_index_received;
+	uint64_t tracefile_size;
+	uint64_t tracefile_size_current;
+	uint64_t tracefile_count;
+	uint64_t tracefile_count_current;
+	struct lttng_ht_node_u64 stream_n;
+	struct rcu_head rcu_node;
+	struct ctf_trace *ctf_trace;
+	/* Information telling us if the stream is a metadata stream. */
+	unsigned int metadata_flag:1;
 };
 
 /*
@@ -94,8 +165,19 @@ struct relay_command {
 	/* protocol version to use for this session */
 	uint32_t major;
 	uint32_t minor;
+	struct lttng_ht *ctf_traces_ht;	/* indexed by path name */
+};
+
+struct relay_local_data {
+	struct lttng_ht *sessions_ht;
 };
 
 extern char *opt_output_path;
 
+extern struct lttng_ht *relay_streams_ht;
+extern struct lttng_ht *viewer_streams_ht;
+extern struct lttng_ht *indexes_ht;
+
+struct relay_stream *relay_stream_find_by_id(uint64_t stream_id);
+
 #endif /* LTTNG_RELAYD_H */