Clean-up: modernize pretty_xml.cpp

[lttng-tools.git] / src / bin / lttng-relayd / viewer-session.h

diff --git a/src/bin/lttng-relayd/viewer-session.h b/src/bin/lttng-relayd/viewer-session.h
deleted file mode 100644 (file)
index f70daed..0000000
--- a/src/bin/lttng-relayd/viewer-session.h
+++ /dev/null
@@ -1,78 +0,0 @@
-#ifndef _VIEWER_SESSION_H
-#define _VIEWER_SESSION_H
-
-/*
- * Copyright (C) 2013 Julien Desfossez <jdesfossez@efficios.com>
- * Copyright (C) 2013 David Goulet <dgoulet@efficios.com>
- * Copyright (C) 2015 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
- *
- * SPDX-License-Identifier: GPL-2.0-only
- *
- */
-
-#include <limits.h>
-#include <inttypes.h>
-#include <pthread.h>
-#include <urcu/list.h>
-#include <urcu/ref.h>
-
-#include <common/hashtable/hashtable.h>
-#include <common/trace-chunk.h>
-
-#include "session.h"
-#include "lttng-viewer-abi.h"
-
-struct relay_viewer_session {
-       /*
-        * Session list. Updates are protected by the session_list_lock.
-        * Traversals are protected by RCU.
-        * This list limits the design to having the sessions in at most
-        * one viewer session.
-        */
-       struct cds_list_head session_list;      /* RCU list. */
-       pthread_mutex_t session_list_lock;      /* Protects list updates. */
-       /*
-        * The viewer session's current trace chunk is initially set, when
-        * a viewer attaches to the viewer session, to a copy the corresponding
-        * relay_session's current trace chunk.
-        *
-        * A live session always attempts to "catch-up" to the newest available
-        * trace chunk. This means that when a viewer reaches the end of a
-        * trace chunk, the viewer session may not transition to the "next" one:
-        * it jumps to the most recent trace chunk available (the one being
-        * produced by the relay_session). Hence, if the producer performs
-        * multiple rotations before a viewer completes the consumption of a
-        * trace chunk, it will skip over those "intermediary" trace chunks.
-        *
-        * A viewer session updates its current trace chunk when:
-        *   1) new viewer streams are created,
-        *   2) a new index is requested,
-        *   3) metadata is requested.
-        *
-        * Hence, as a general principle, the viewer session will reference the
-        * most recent trace chunk available _even if its streams do not point to
-        * it_. It indicates which trace chunk viewer streams should transition
-        * to when the end of their current trace chunk is reached.
-        *
-        * Note that a viewer session's trace chunk points to the session's
-        * output directory. The sub-directories in which the various stream files
-        * are created are considered as being a part of their name.
-        */
-       struct lttng_trace_chunk *current_trace_chunk;
-};
-
-struct relay_viewer_session *viewer_session_create(void);
-void viewer_session_destroy(struct relay_viewer_session *vsession);
-void viewer_session_close(struct relay_viewer_session *vsession);
-
-enum lttng_viewer_attach_return_code viewer_session_attach(
-               struct relay_viewer_session *vsession,
-               struct relay_session *session);
-int viewer_session_is_attached(struct relay_viewer_session *vsession,
-               struct relay_session *session);
-void viewer_session_close_one_session(struct relay_viewer_session *vsession,
-               struct relay_session *session);
-int viewer_session_set_trace_chunk_copy(struct relay_viewer_session *vsession,
-               struct lttng_trace_chunk *relay_session_trace_chunk);
-
-#endif /* _VIEWER_SESSION_H */