From 5d65beabea67cce0c6586f702d0962ffacedc59a Mon Sep 17 00:00:00 2001
From: =?utf8?q?J=C3=A9r=C3=A9mie=20Galarneau?=
 <jeremie.galarneau@efficios.com>
Date: Thu, 23 Aug 2018 19:03:54 -0400
Subject: [PATCH] Add a trace archive location accessor to the session API
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Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>
---
 src/bin/lttng-sessiond/session.c | 43 ++++++++++++++++++++++++++++++++
 src/bin/lttng-sessiond/session.h |  3 +++
 2 files changed, 46 insertions(+)

diff --git a/src/bin/lttng-sessiond/session.c b/src/bin/lttng-sessiond/session.c
index 16431ca15..a5b9a4278 100644
--- a/src/bin/lttng-sessiond/session.c
+++ b/src/bin/lttng-sessiond/session.c
@@ -28,6 +28,7 @@
 
 #include <common/common.h>
 #include <common/sessiond-comm/sessiond-comm.h>
+#include <lttng/location-internal.h>
 
 #include "session.h"
 #include "utils.h"
@@ -218,6 +219,48 @@ void session_get_net_consumer_ports(const struct ltt_session *session,
 	*data_port = output->dst.net.data.port;
 }
 
+/*
+ * Get the location of the latest trace archive produced by a rotation.
+ *
+ * The caller must hold the session lock.
+ */
+struct lttng_trace_archive_location *session_get_trace_archive_location(
+		struct ltt_session *session)
+{
+	struct lttng_trace_archive_location *location = NULL;
+
+	if (session->rotation_state != LTTNG_ROTATION_STATE_COMPLETED) {
+		goto end;
+	}
+
+	switch (session_get_consumer_destination_type(session)) {
+	case CONSUMER_DST_LOCAL:
+		location = lttng_trace_archive_location_local_create(
+				session->rotation_chunk.current_rotate_path);
+		break;
+	case CONSUMER_DST_NET:
+	{
+		const char *hostname;
+		uint16_t control_port, data_port;
+
+		hostname = session_get_net_consumer_hostname(session);
+		session_get_net_consumer_ports(session,
+				&control_port,
+				&data_port);
+		location = lttng_trace_archive_location_relay_create(
+				hostname,
+				LTTNG_TRACE_ARCHIVE_LOCATION_RELAY_PROTOCOL_TYPE_TCP,
+				control_port, data_port,
+				session->rotation_chunk.current_rotate_path);
+		break;
+	}
+	default:
+		abort();
+	}
+end:
+	return location;
+}
+
 /*
  * Allocate the ltt_sessions_ht_by_id HT.
  *
diff --git a/src/bin/lttng-sessiond/session.h b/src/bin/lttng-sessiond/session.h
index 371b30d6b..abbf9ece0 100644
--- a/src/bin/lttng-sessiond/session.h
+++ b/src/bin/lttng-sessiond/session.h
@@ -24,6 +24,7 @@
 
 #include <common/hashtable/hashtable.h>
 #include <lttng/rotation.h>
+#include <lttng/location.h>
 
 #include "snapshot.h"
 #include "trace-kernel.h"
@@ -224,6 +225,8 @@ const char *session_get_net_consumer_hostname(
 void session_get_net_consumer_ports(
 		const struct ltt_session *session,
 		uint16_t *control_port, uint16_t *data_port);
+struct lttng_trace_archive_location *session_get_trace_archive_location(
+		struct ltt_session *session);
 
 struct ltt_session *session_find_by_name(const char *name);
 struct ltt_session *session_find_by_id(uint64_t id);
-- 
2.34.1