/*
* Copyright (C) 2013 David Goulet <dgoulet@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.
+ * SPDX-License-Identifier: LGPL-2.1-only
*
- * 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
*/
#ifndef LTTNG_CTL_HELPER_H
#define LTTNG_CTL_HELPER_H
-#define _GNU_SOURCE
#include <stdio.h>
#include <common/sessiond-comm/sessiond-comm.h>
#include <lttng/lttng.h>
-/*
- * NOTE: Every symbol in this helper header MUST be set to hidden so not to
- * polute the library name space. Use LTTNG_HIDDEN macro before declaring the
- * function in the C file.
- */
-
/* Copy helper functions. */
-void lttng_ctl_copy_string(char *dst, const char *src, size_t len);
void lttng_ctl_copy_lttng_domain(struct lttng_domain *dst,
struct lttng_domain *src);
/*
- * Sends the lttcomm message to the session daemon and fills buf of the
+ * Sends the lttcomm message to the session daemon and fills buf if the
* returned data is not NULL.
*
* Return the size of the received data on success or else a negative lttng
* error code. If buf is NULL, 0 is returned on success.
*/
-int lttng_ctl_ask_sessiond_varlen(struct lttcomm_session_msg *lsm,
- void *vardata, size_t varlen, void **buf);
+int lttng_ctl_ask_sessiond_fds_varlen(struct lttcomm_session_msg *lsm,
+ const int *fds, size_t nb_fd,
+ const void *vardata, size_t vardata_len,
+ void **user_payload_buf, void **user_cmd_header_buf,
+ size_t *user_cmd_header_len);
+/*
+ * Sends the lttcomm message to the session daemon and fills the reply payload.
+ *
+ * Return the size of the received data on success or else a negative lttng
+ * error code.
+ */
+int lttng_ctl_ask_sessiond_payload(struct lttng_payload_view *message,
+ struct lttng_payload *reply);
+
+/*
+ * Calls lttng_ctl_ask_sessiond_fds_varlen() with no expected command header.
+ */
+static inline int lttng_ctl_ask_sessiond_varlen_no_cmd_header(
+ struct lttcomm_session_msg *lsm,
+ const void *vardata,
+ size_t vardata_len,
+ void **user_payload_buf)
+{
+ return lttng_ctl_ask_sessiond_fds_varlen(lsm, NULL, 0, vardata,
+ vardata_len, user_payload_buf, NULL, NULL);
+}
+
+/*
+ * Calls lttng_ctl_ask_sessiond_fds_varlen() with fds and no expected command header.
+ */
+static inline
+int lttng_ctl_ask_sessiond_fds_no_cmd_header(struct lttcomm_session_msg *lsm,
+ const int *fds, size_t nb_fd, void **buf)
+{
+ return lttng_ctl_ask_sessiond_fds_varlen(lsm, fds, nb_fd, NULL,
+ 0, NULL, NULL, NULL);
+}
/*
* Use this if no variable length data needs to be sent.
*/
static inline
int lttng_ctl_ask_sessiond(struct lttcomm_session_msg *lsm, void **buf)
{
- return lttng_ctl_ask_sessiond_varlen(lsm, NULL, 0, buf);
+ return lttng_ctl_ask_sessiond_varlen_no_cmd_header(lsm, NULL, 0, buf);
}
+int lttng_check_tracing_group(void);
+
+int connect_sessiond(void);
+
#endif /* LTTNG_CTL_HELPER_H */