src/common/fs-handle-internal.h

   1 /*
   2  * Copyright (C) 2020 - Jérémie Galarneau <jeremie.galarneau@efficios.com>
   3  *
   4  * This library is free software; you can redistribute it and/or modify it
   5  * under the terms of the GNU Lesser General Public License as published by the
   6  * Free Software Foundation; version 2.1 of the License.
   7  *
   8  * This library 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 Lesser General Public License
  11  * for more details.
  12  *
  13  * You should have received a copy of the GNU Lesser General Public License
  14  * along with this library; if not, write to the Free Software Foundation,
  15  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301 USA
  16  */
  17
  18 #ifndef FS_HANDLE_INTERNAL_H
  19 #define FS_HANDLE_INTERNAL_H
  20
  21 struct fs_handle;
  22
  23 /*
  24  * Multiple internal APIs return fs_handles. For the moment, this internal
  25  * interface allows the use of different fs_handle implementations in different
  26  * daemons. For instance, the trace chunk interface returns fs_handles that
  27  * behave diffently depending on whether or not the trace chunk was configured
  28  * to use an fd-tracker.
  29  */
  30
  31 typedef int (*fs_handle_get_fd_cb)(struct fs_handle *);
  32 typedef void (*fs_handle_put_fd_cb)(struct fs_handle *);
  33 typedef int (*fs_handle_unlink_cb)(struct fs_handle *);
  34 typedef int (*fs_handle_close_cb)(struct fs_handle *);
  35
  36 struct fs_handle {
  37         fs_handle_get_fd_cb get_fd;
  38         fs_handle_put_fd_cb put_fd;
  39         fs_handle_unlink_cb unlink;
  40         fs_handle_close_cb close;
  41 };
  42
  43 #endif /* FS_HANDLE_INTERNAL_H */