src/network/poll.c

   1 /*****************************************************************************
   2  * poll.c: I/O event multiplexing
   3  *****************************************************************************
   4  * Copyright © 2007 Rémi Denis-Courmont
   5  * $Id$
   6  *
   7  * Author: Rémi Denis-Courmont
   8  *
   9  * This program is free software; you can redistribute it and/or modify it
  10  * under the terms of the GNU Lesser General Public License as published by
  11  * the Free Software Foundation; either version 2.1 of the License, or
  12  * (at your option) any later version.
  13  *
  14  * This program is distributed in the hope that it will be useful,
  15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  17  * GNU Lesser General Public License for more details.
  18  *
  19  * You should have received a copy of the GNU Lesser General Public License
  20  * along with this program; if not, write to the Free Software Foundation,
  21  * Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
  22  *****************************************************************************/
  23
  24 #ifdef HAVE_CONFIG_H
  25 # include "config.h"
  26 #endif
  27
  28 #include <vlc_common.h>
  29
  30 #ifdef HAVE_MAEMO
  31 # include <vlc_network.h>
  32 # include <signal.h>
  33 # include <errno.h>
  34 # include <poll.h>
  35
  36 int vlc_poll (struct pollfd *fds, unsigned nfds, int timeout)
  37 {
  38     struct timespec tsbuf, *ts;
  39     sigset_t set;
  40     int canc, ret;
  41
  42     if (timeout != -1)
  43     {
  44         div_t d = div (timeout, 1000);
  45         tsbuf.tv_sec = d.quot;
  46         tsbuf.tv_nsec = d.rem * 1000000;
  47         ts = &tsbuf;
  48     }
  49     else
  50         ts = NULL;
  51
  52     pthread_sigmask (SIG_BLOCK, NULL, &set);
  53     sigdelset (&set, SIGRTMIN);
  54
  55     canc = vlc_savecancel ();
  56     ret = ppoll (fds, nfds, ts, &set);
  57     vlc_restorecancel (canc);
  58
  59     vlc_testcancel ();
  60     return ret;
  61 }
  62
  63 #elif defined (HAVE_POLL)
  64 # include <vlc_network.h>
  65
  66 struct pollfd;
  67
  68 int vlc_poll (struct pollfd *fds, unsigned nfds, int timeout)
  69 {
  70     (void)fds; (void)nfds; (void)timeout;
  71     abort ();
  72 }
  73
  74 #else
  75 # error poll() not implemented!
  76 #endif