+/*
+ * Copyright (C) 2013 - Jérémie Galarneau <jeremie.galarneau@efficios.com>
+ *
+ * This library is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU Lesser General Public License, version 2.1 only,
+ * as published by the Free Software Foundation.
+ *
+ * This library is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License
+ * for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this library; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#define _GNU_SOURCE
+#include <assert.h>
+#include <string.h>
+
+#include <lttng/lttng-error.h>
+#include <lttng/save.h>
+#include <lttng/save-internal.h>
+#include <common/sessiond-comm/sessiond-comm.h>
+
+#include "lttng-ctl-helper.h"
+
+struct lttng_save_session_attr *lttng_save_session_attr_create(void)
+{
+ return zmalloc(sizeof(struct lttng_save_session_attr));
+}
+
+void lttng_save_session_attr_destroy(struct lttng_save_session_attr *output)
+{
+ if (output) {
+ free(output);
+ }
+}
+
+const char *lttng_save_session_attr_get_session_name(
+ struct lttng_save_session_attr *attr)
+{
+ const char *ret = NULL;
+
+ if (attr && attr->session_name[0]) {
+ ret = attr->session_name;
+ }
+
+ return ret;
+}
+
+const char *lttng_save_session_attr_get_output_url(
+ struct lttng_save_session_attr *attr)
+{
+ const char *ret = NULL;
+
+ if (attr && attr->configuration_url[0]) {
+ ret = attr->configuration_url;
+ }
+
+ return ret;
+}
+
+int lttng_save_session_attr_get_overwrite(
+ struct lttng_save_session_attr *attr)
+{
+ return attr ? attr->overwrite : -LTTNG_ERR_INVALID;
+}
+
+int lttng_save_session_attr_set_session_name(
+ struct lttng_save_session_attr *attr, const char *session_name)
+{
+ int ret = 0;
+
+ if (!attr) {
+ ret = -LTTNG_ERR_INVALID;
+ goto error;
+ }
+
+ if (session_name) {
+ size_t len;
+
+ len = strlen(session_name);
+ if (len >= NAME_MAX) {
+ ret = -LTTNG_ERR_INVALID;
+ goto error;
+ }
+
+ strncpy(attr->session_name, session_name, len);
+ } else {
+ attr->session_name[0] = '\0';
+ }
+error:
+ return ret;
+}
+
+int lttng_save_session_attr_set_output_url(
+ struct lttng_save_session_attr *attr, const char *url)
+{
+ int ret = 0;
+
+ if (!attr) {
+ ret = -LTTNG_ERR_INVALID;
+ goto error;
+ }
+
+ if (url) {
+ size_t len;
+
+ len = strlen(url);
+ if (len >= PATH_MAX) {
+ ret = -LTTNG_ERR_INVALID;
+ goto error;
+ }
+
+ strncpy(attr->configuration_url, url, len);
+ } else {
+ attr->configuration_url[0] = '\0';
+ }
+error:
+ return ret;
+}
+
+int lttng_save_session_attr_set_overwrite(
+ struct lttng_save_session_attr *attr, int overwrite)
+{
+ int ret = 0;
+
+ if (!attr) {
+ ret = -LTTNG_ERR_INVALID;
+ goto end;
+ }
+
+ attr->overwrite = !!overwrite;
+end:
+ return ret;
+}
+
+/*
+ * The lttng-ctl API does not expose all the information needed to save the
+ * session configurations. Thus, we must send a save command to the session
+ * daemon which will, in turn, save its current session configuration.
+ */
+int lttng_save_session(struct lttng_save_session_attr *attr)
+{
+ struct lttcomm_session_msg lsm;
+ int ret;
+
+ if (!attr) {
+ ret = -LTTNG_ERR_INVALID;
+ goto end;
+ }
+
+ memset(&lsm, 0, sizeof(lsm));
+ lsm.cmd_type = LTTNG_SAVE_SESSION;
+
+ memcpy(&lsm.u.save_session.attr, attr,
+ sizeof(struct lttng_save_session_attr));
+ ret = lttng_ctl_ask_sessiond(&lsm, NULL);
+end:
+ return ret;
+}