src/common/fd-tracker/utils.h

   1 /*
   2  * Copyright (C) 2018 Jérémie Galarneau <jeremie.galarneau@efficios.com>
   3  *
   4  * SPDX-License-Identifier: GPL-2.0-only
   5  *
   6  */
   7
   8 #ifndef FD_TRACKER_UTILS_H
   9 #define FD_TRACKER_UTILS_H
  10
  11 #include <common/fd-tracker/fd-tracker.h>
  12
  13 struct lttng_poll_event;
  14
  15 /*
  16  * Utility implementing a close_fd callback which receives one file descriptor
  17  * and closes it, returning close()'s return value.
  18  */
  19 int fd_tracker_util_close_fd(void *, int *fd);
  20
  21 /*
  22  * Create a pipe and track its underlying fds.
  23  */
  24 int fd_tracker_util_pipe_open_cloexec(
  25                 struct fd_tracker *tracker, const char *name, int *pipe);
  26 int fd_tracker_util_pipe_close(struct fd_tracker *tracker, int *pipe);
  27
  28 /*
  29  * Create a poll event and track its underlying fd, if applicable.
  30  */
  31 int fd_tracker_util_poll_create(struct fd_tracker *tracker,
  32                 const char *name,
  33                 struct lttng_poll_event *events,
  34                 int size,
  35                 int flags);
  36 int fd_tracker_util_poll_clean(
  37                 struct fd_tracker *tracker, struct lttng_poll_event *events);
  38
  39 #endif /* FD_TRACKER_UTILS_H */