libustcomm/multipoll.h

   1 /*
   2  * multipoll.h
   3  *
   4  * Copyright (C) 2010 - Pierre-Marc Fournier (pierre-marc dot fournier at polymtl dot ca)
   5  *
   6  * This library is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2.1 of the License, or (at your option) any later version.
  10  *
  11  * This library is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public
  17  * License along with this library; if not, write to the Free Software
  18  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301 USA
  19  */
  20
  21 #ifndef UST_MULTIPOLL_H
  22 #define UST_MULTIPOLL_H
  23
  24 struct pollfd_extra {
  25         int (*func)(void *priv, int fd, short events);
  26         void *priv;
  27
  28         int (*destroy_priv)(void *priv);
  29 };
  30
  31 struct mpentries {
  32         struct pollfd *pollfds;
  33         struct pollfd_extra *extras;
  34
  35         int n_used;
  36         int n_avail;
  37 };
  38
  39 extern int multipoll_init(struct mpentries *ent);
  40 extern int multipoll_add(struct mpentries *ent, int fd, short events, int (*func)(void *priv, int fd, short events), void *priv, int (*destroy_priv)(void *));
  41 extern int multipoll_destroy(struct mpentries *ent);
  42 extern int multipoll_poll(struct mpentries *ent, int timeout);
  43
  44 #endif /* UST_MULTIPOLL_H */