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 */