Fix: possible null dereference

[lttng-tools.git] / src / common / fd-tracker / utils.h

diff --git a/src/common/fd-tracker/utils.h b/src/common/fd-tracker/utils.h
index 1a7aad9f6074217f1c3030164ffc6e3b428f05ec..202c4a1b846f47d0dd434daa32daccd0020ff0bc 100644 (file)
--- a/src/common/fd-tracker/utils.h
+++ b/src/common/fd-tracker/utils.h
@@ -1,24 +1,16 @@
 /*
- * Copyright (C) 2018 - Jérémie Galarneau <jeremie.galarneau@efficios.com>
+ * Copyright (C) 2018 Jérémie Galarneau <jeremie.galarneau@efficios.com>
  *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License, version 2 only, as
- * published by the Free Software Foundation.
+ * SPDX-License-Identifier: GPL-2.0-only
  *
- * This program 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 General Public License for
- * more details.
- *
- * You should have received a copy of the GNU General Public License along with
- * this program; if not, write to the Free Software Foundation, Inc., 51
- * Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  */
 
 #ifndef FD_TRACKER_UTILS_H
 #define FD_TRACKER_UTILS_H
 
+#include <common/compat/directory-handle.h>
 #include <common/fd-tracker/fd-tracker.h>
+#include <common/macros.h>
 
 struct lttng_poll_event;
 
@@ -26,24 +18,39 @@ struct lttng_poll_event;
  * Utility implementing a close_fd callback which receives one file descriptor
  * and closes it, returning close()'s return value.
  */
+LTTNG_HIDDEN
 int fd_tracker_util_close_fd(void *, int *fd);
 
 /*
  * Create a pipe and track its underlying fds.
  */
+LTTNG_HIDDEN
 int fd_tracker_util_pipe_open_cloexec(
                struct fd_tracker *tracker, const char *name, int *pipe);
+LTTNG_HIDDEN
 int fd_tracker_util_pipe_close(struct fd_tracker *tracker, int *pipe);
 
 /*
  * Create a poll event and track its underlying fd, if applicable.
  */
+LTTNG_HIDDEN
 int fd_tracker_util_poll_create(struct fd_tracker *tracker,
                const char *name,
                struct lttng_poll_event *events,
                int size,
                int flags);
+LTTNG_HIDDEN
 int fd_tracker_util_poll_clean(
                struct fd_tracker *tracker, struct lttng_poll_event *events);
 
+LTTNG_HIDDEN
+struct lttng_directory_handle *fd_tracker_create_directory_handle(
+               struct fd_tracker *tracker, const char *path);
+
+LTTNG_HIDDEN
+struct lttng_directory_handle *fd_tracker_create_directory_handle_from_handle(
+               struct fd_tracker *tracker,
+               struct lttng_directory_handle *handle,
+               const char *path);
+
 #endif /* FD_TRACKER_UTILS_H */