+ DBG("Client rotate session \"%s\"", cmd_ctx->session->name);
+
+ memset(&rotate_return, 0, sizeof(rotate_return));
+ if (cmd_ctx->session->kernel_session && !check_rotate_compatible()) {
+ DBG("Kernel tracer version is not compatible with the rotation feature");
+ ret = LTTNG_ERR_ROTATION_WRONG_VERSION;
+ goto error;
+ }
+
+ ret = cmd_rotate_session(cmd_ctx->session, &rotate_return);
+ if (ret < 0) {
+ ret = -ret;
+ goto error;
+ }
+
+ ret = setup_lttng_msg_no_cmd_header(cmd_ctx, &rotate_return,
+ sizeof(rotate_return));
+ if (ret < 0) {
+ ret = -ret;
+ goto error;
+ }
+
+ ret = LTTNG_OK;
+ break;
+ }
+ case LTTNG_ROTATION_GET_INFO:
+ {
+ struct lttng_rotation_get_info_return get_info_return;
+
+ memset(&get_info_return, 0, sizeof(get_info_return));
+ ret = cmd_rotate_get_info(cmd_ctx->session, &get_info_return,
+ cmd_ctx->lsm->u.get_rotation_info.rotation_id);
+ if (ret < 0) {
+ ret = -ret;
+ goto error;
+ }
+
+ ret = setup_lttng_msg_no_cmd_header(cmd_ctx, &get_info_return,
+ sizeof(get_info_return));
+ if (ret < 0) {
+ ret = -ret;
+ goto error;
+ }
+
+ ret = LTTNG_OK;
+ break;
+ }
+ case LTTNG_SESSION_GET_CURRENT_OUTPUT:
+ {
+ struct lttng_session_get_current_output_return output_return;
+
+ memset(&output_return, 0, sizeof(output_return));
+ ret = cmd_session_get_current_output(cmd_ctx->session,
+ &output_return);
+ if (ret < 0) {
+ ret = -ret;
+ goto error;
+ }
+
+ ret = setup_lttng_msg_no_cmd_header(cmd_ctx, &output_return,
+ sizeof(output_return));
+ if (ret < 0) {
+ ret = -ret;
+ goto error;
+ }
+
+ ret = LTTNG_OK;
+ break;
+ }
+ case LTTNG_ROTATION_SET_SCHEDULE:
+ {
+ if (cmd_ctx->session->kernel_session && !check_rotate_compatible()) {
+ DBG("Kernel tracer version does not support session rotations");
+ ret = LTTNG_ERR_ROTATION_WRONG_VERSION;
+ goto error;
+ }
+
+ ret = cmd_rotation_set_schedule(cmd_ctx->session,
+ cmd_ctx->lsm->u.rotate_setup.timer_us,
+ cmd_ctx->lsm->u.rotate_setup.size,
+ notification_thread_handle);
+ if (ret != LTTNG_OK) {
+ goto error;
+ }
+
+ break;
+ }
+ case LTTNG_ROTATION_SCHEDULE_GET_TIMER_PERIOD:
+ {
+ struct lttng_rotation_schedule_get_timer_period *get_timer;
+
+ get_timer = zmalloc(sizeof(struct lttng_rotation_schedule_get_timer_period));
+ if (!get_timer) {
+ ret = ENOMEM;
+ goto error;
+ }
+ get_timer->rotate_timer = cmd_ctx->session->rotate_timer_period;
+
+ ret = setup_lttng_msg_no_cmd_header(cmd_ctx, get_timer,
+ sizeof(struct lttng_rotation_schedule_get_timer_period));
+ free(get_timer);
+ if (ret < 0) {
+ ret = -ret;
+ goto error;
+ }
+
+ ret = LTTNG_OK;
+ break;
+ }
+ case LTTNG_ROTATION_SCHEDULE_GET_SIZE:
+ {
+ struct lttng_rotation_schedule_get_size *get_size;
+
+ get_size = zmalloc(sizeof(struct lttng_rotation_schedule_get_size));
+ if (!get_size) {
+ ret = ENOMEM;
+ goto error;
+ }
+ get_size->rotate_size = cmd_ctx->session->rotate_size;
+
+ ret = setup_lttng_msg_no_cmd_header(cmd_ctx, get_size,
+ sizeof(struct lttng_rotation_schedule_get_size));
+ free(get_size);
+ if (ret < 0) {
+ ret = -ret;
+ goto error;
+ }
+
+ ret = LTTNG_OK;
+ break;
+ }
+ default:
+ ret = LTTNG_ERR_UND;
+ break;
+ }
+
+error:
+ if (cmd_ctx->llm == NULL) {
+ DBG("Missing llm structure. Allocating one.");
+ if (setup_lttng_msg_no_cmd_header(cmd_ctx, NULL, 0) < 0) {
+ goto setup_error;
+ }
+ }
+ /* Set return code */
+ cmd_ctx->llm->ret_code = ret;
+setup_error:
+ if (cmd_ctx->session) {
+ session_unlock(cmd_ctx->session);
+ }
+ if (need_tracing_session) {
+ session_unlock_list();
+ }
+init_setup_error:
+ assert(!rcu_read_ongoing());
+ return ret;
+}
+
+/*
+ * Thread managing health check socket.
+ */
+static void *thread_manage_health(void *data)
+{
+ int sock = -1, new_sock = -1, ret, i, pollfd, err = -1;