gio/kqueue/kqueue-utils.h

   1 /*******************************************************************************
   2   Copyright (c) 2011, 2012 Dmitry Matveev <me@dmitrymatveev.co.uk>
   3
   4   Permission is hereby granted, free of charge, to any person obtaining a copy
   5   of this software and associated documentation files (the "Software"), to deal
   6   in the Software without restriction, including without limitation the rights
   7   to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
   8   copies of the Software, and to permit persons to whom the Software is
   9   furnished to do so, subject to the following conditions:
  10
  11   The above copyright notice and this permission notice shall be included in
  12   all copies or substantial portions of the Software.
  13
  14   THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  15   IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  16   FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
  17   AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  18   LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  19   OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
  20   THE SOFTWARE.
  21 *******************************************************************************/
  22
  23 #ifndef __KQUEUE_UTILS_H
  24 #define __KQUEUE_UTILS_H
  25
  26 #include <sys/types.h> /* ino_t */
  27
  28 /**
  29  * kqueue_notification:
  30  * @memory: a pointer to the allocated memory
  31  * @kq_size: the number of used items
  32  * @kq_allocated: the number of allocated items
  33  *
  34  * Represents a pool of (struct kevent) objects.
  35  */
  36 typedef struct {
  37   struct kevent *memory;
  38   gsize kq_size;
  39   gsize kq_allocated;
  40 } kevents;
  41
  42 void kevents_init_sz   (kevents *kv, gsize n_initial);
  43 void kevents_extend_sz (kevents *kv, gsize n_new);
  44 void kevents_reduce    (kevents *kv);
  45 void kevents_free      (kevents *kv);
  46
  47
  48 gboolean _ku_read             (int fd, gpointer data, gsize size);
  49 gboolean _ku_write            (int fd, gconstpointer data, gsize size);
  50
  51 void     _ku_file_information (int fd, int *is_dir, ino_t *inode);
  52
  53 #endif /* __KQUEUE_UTILS_H */