src/common/ust-fd.h

   1 /*
   2  * SPDX-License-Identifier: LGPL-2.1-only
   3  *
   4  * Copyright (C) 2016 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
   5  */
   6
   7 #ifndef _LTTNG_UST_FD_H
   8 #define _LTTNG_UST_FD_H
   9
  10 /*
  11  * The fd tracker feature is part of the ABI and used by liblttng-ust-fd.
  12  * However, some test code and documentation needs to be written before it is
  13  * exposed to users with a public header.
  14  *
  15  * These symbols are provided by 'liblttng-ust-common'.
  16  */
  17
  18 #include <stdio.h>
  19 #include <lttng/ust-config.h>
  20
  21 /* Custom upgrade 2.12 to 2.13 */
  22
  23 #ifndef LTTNG_UST_CUSTOM_UPGRADE_CONFLICTING_SYMBOLS
  24 #define lttng_ust_add_fd_to_tracker             lttng_ust_add_fd_to_tracker1
  25 #define lttng_ust_delete_fd_from_tracker        lttng_ust_delete_fd_from_tracker1
  26 #define lttng_ust_lock_fd_tracker               lttng_ust_lock_fd_tracker1
  27 #define lttng_ust_unlock_fd_tracker             lttng_ust_unlock_fd_tracker1
  28 #define lttng_ust_safe_close_fd                 lttng_ust_safe_close_fd1
  29 #define lttng_ust_safe_fclose_stream            lttng_ust_safe_fclose_stream1
  30 #define lttng_ust_safe_closefrom_fd             lttng_ust_safe_closefrom_fd1
  31 #endif
  32
  33 int lttng_ust_add_fd_to_tracker(int fd);
  34 void lttng_ust_delete_fd_from_tracker(int fd);
  35 void lttng_ust_lock_fd_tracker(void);
  36 void lttng_ust_unlock_fd_tracker(void);
  37
  38 int lttng_ust_safe_close_fd(int fd, int (*close_cb)(int));
  39 int lttng_ust_safe_fclose_stream(FILE *stream, int (*fclose_cb)(FILE *stream));
  40 int lttng_ust_safe_closefrom_fd(int lowfd, int (*close_cb)(int));
  41
  42 #endif  /* _LTTNG_UST_FD_H */