86af3c6e1aadf695317a082160b37dbb2fd71874
[lttng-tools.git] / src / common / fd-tracker / utils.h
1 /*
2 * Copyright (C) 2018 - Jérémie Galarneau <jeremie.galarneau@efficios.com>
3 *
4 * This program is free software; you can redistribute it and/or modify it
5 * under the terms of the GNU General Public License, version 2 only, as
6 * published by the Free Software Foundation.
7 *
8 * This program is distributed in the hope that it will be useful, but WITHOUT
9 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
10 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
11 * more details.
12 *
13 * You should have received a copy of the GNU General Public License along with
14 * this program; if not, write to the Free Software Foundation, Inc., 51
15 * Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
16 */
17
18 #ifndef FD_TRACKER_UTILS_H
19 #define FD_TRACKER_UTILS_H
20
21 #include <common/fd-tracker/fd-tracker.h>
22
23 struct lttng_poll_event;
24
25 /*
26 * Utility implementing a close_fd callback which receives one file descriptor
27 * and closes it, returning close()'s return value.
28 */
29 int fd_tracker_util_close_fd(void *, int *fd);
30
31 /*
32 * Create a poll event and track its underlying fd, if applicable.
33 */
34 int fd_tracker_util_poll_create(struct fd_tracker *tracker, const char *name,
35 struct lttng_poll_event *events, int size, int flags);
36 int fd_tracker_util_poll_clean(struct fd_tracker *tracker,
37 struct lttng_poll_event *events);
38
39 #endif /* FD_TRACKER_UTILS_H */
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