X-Git-Url: https://git.lttng.org/?p=lttng-tools.git;a=blobdiff_plain;f=src%2Fbin%2Flttng-sessiond%2Fsession.c;h=56c38714fc6c6ccad7ef56b3a39820f34062d2ca;hp=0f62ab49fc4acccd824e78e8bbaad3a205583660;hb=a7333da73c2083281c5ec833d041b7acf0d10d0b;hpb=d88744a44aa5f2ca90ab87946692b9eed3120641

diff --git a/src/bin/lttng-sessiond/session.c b/src/bin/lttng-sessiond/session.c
index 0f62ab49f..56c38714f 100644
--- a/src/bin/lttng-sessiond/session.c
+++ b/src/bin/lttng-sessiond/session.c
@@ -28,9 +28,12 @@
 
 #include <common/common.h>
 #include <common/sessiond-comm/sessiond-comm.h>
+#include <lttng/location-internal.h>
 
 #include "session.h"
 #include "utils.h"
+#include "trace-ust.h"
+#include "timer.h"
 
 /*
  * NOTES:
@@ -133,6 +136,14 @@ void session_lock_list(void)
 	pthread_mutex_lock(&ltt_session_list.lock);
 }
 
+/*
+ * Try to acquire session list lock
+ */
+int session_trylock_list(void)
+{
+	return pthread_mutex_trylock(&ltt_session_list.lock);
+}
+
 /*
  * Release session list lock
  */
@@ -141,6 +152,116 @@ void session_unlock_list(void)
 	pthread_mutex_unlock(&ltt_session_list.lock);
 }
 
+/*
+ * Get the session's consumer destination type.
+ *
+ * The caller must hold the session lock.
+ */
+enum consumer_dst_type session_get_consumer_destination_type(
+		const struct ltt_session *session)
+{
+	/*
+	 * The output information is duplicated in both of those session types.
+	 * Hence, it doesn't matter from which it is retrieved. However, it is
+	 * possible for only one of them to be set.
+	 */
+	return session->kernel_session ?
+			session->kernel_session->consumer->type :
+			session->ust_session->consumer->type;
+}
+
+/*
+ * Get the session's consumer network hostname.
+ * The caller must ensure that the destination is of type "net".
+ *
+ * The caller must hold the session lock.
+ */
+const char *session_get_net_consumer_hostname(const struct ltt_session *session)
+{
+	const char *hostname = NULL;
+	const struct consumer_output *output;
+
+	output = session->kernel_session ?
+			session->kernel_session->consumer :
+			session->ust_session->consumer;
+
+	/*
+	 * hostname is assumed to be the same for both control and data
+	 * connections.
+	 */
+	switch (output->dst.net.control.dtype) {
+	case LTTNG_DST_IPV4:
+		hostname = output->dst.net.control.dst.ipv4;
+		break;
+	case LTTNG_DST_IPV6:
+		hostname = output->dst.net.control.dst.ipv6;
+		break;
+	default:
+		abort();
+	}
+	return hostname;
+}
+
+/*
+ * Get the session's consumer network control and data ports.
+ * The caller must ensure that the destination is of type "net".
+ *
+ * The caller must hold the session lock.
+ */
+void session_get_net_consumer_ports(const struct ltt_session *session,
+		uint16_t *control_port, uint16_t *data_port)
+{
+	const struct consumer_output *output;
+
+	output = session->kernel_session ?
+			session->kernel_session->consumer :
+			session->ust_session->consumer;
+	*control_port = output->dst.net.control.port;
+	*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.
  *
@@ -400,9 +521,12 @@ int session_create(char *name, uid_t uid, gid_t gid)
 		goto error;
 	}
 
-	new_session->rotate_pending = false;
-	new_session->rotate_pending_relay = false;
-	new_session->rotate_relay_pending_timer_enabled = false;
+	new_session->rotation_pending_local = false;
+	new_session->rotation_pending_relay = false;
+	new_session->rotation_state = LTTNG_ROTATION_STATE_NO_ROTATION;
+
+	new_session->rotation_pending_check_timer_enabled = false;
+	new_session->rotation_schedule_timer_enabled = false;
 
 	/* Add new session to the session list */
 	session_lock_list();