* vlc_network.h: interface to communicate with network plug-ins
*****************************************************************************
* Copyright (C) 2002-2005 the VideoLAN team
+ * Copyright © 2006-2007 Rémi Denis-Courmont
* $Id$
*
* Authors: Christophe Massiot <massiot@via.ecp.fr>
int inet_pton(int af, const char *src, void *dst);
#endif
+#ifndef HAVE_POLL
+enum
+{
+ POLLIN=1,
+ POLLOUT=2,
+ POLLPRI=4
+ POLLERR=8, // unsupported stub
+ POLLHUP=16, // unsupported stub
+ POLLNVAL=32 // unsupported stub
+};
+
+struct pollfd
+{
+ int fd;
+ int events;
+ int revents;
+};
+
+int poll (struct pollfd *fds, unsigned nfds, int timeout);
+#endif
+
/*****************************************************************************
* net_StopRecv/Send
--- /dev/null
+/*****************************************************************************
+ * poll.c: I/O event multiplexing
+ *****************************************************************************
+ * Copyright © 2007 Rémi Denis-Courmont
+ * $Id$
+ *
+ * Author: Rémi Denis-Courmont
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
+ *****************************************************************************/
+
+#include <vlc/vlc.h>
+
+#ifndef HAVE_POLL
+#include <string.h>
+#include <stdlib.h>
+#include <vlc_network.h>
+
+int poll (struct pollfd *fds, unsigned nfds, int timeout)
+{
+ fd_set rdset, wrset, exset;
+ struct timeval tv = { 0, 0 };
+ int val = -1;
+
+
+ FD_ZERO (&rdset);
+ FD_ZERO (&wrset);
+ FD_ZERO (&exset);
+ for (unsigned i = 0; i < nfds; i++)
+ {
+ int fd = fds[i].fd;
+ if (val < fd)
+ val = fd;
+
+ /* I assume the OS has a solution select overflow if it does not have
+ * poll(). If it did not, we are screwed anyway. */
+ if (fds[i].events & POLLIN)
+ FD_SET (fd, &rdset);
+ if (fds[i].events & POLLOUT)
+ FD_SET (fd, &wrset);
+ if (fds[i].events & POLLPRI)
+ FD_SET (fd, &exset);
+ }
+
+ if (timeout >= 0)
+ {
+ div_t d = div (timeout, 1000);
+ tv.tv_sec = d.quot;
+ tv.tv_usec = d.rem * 1000;
+ }
+
+ val = select (val + 1, &rdset, &wrset, NULL,
+ (timeout >= 0) ? &tv : NULL);
+ if (val == -1)
+ return -1;
+
+ for (unsigned i = 0; i < nfds; i++)
+ {
+ int fd = fds[i].fd;
+ fds[i].revents = (FD_ISSET (fds[i].fd, &rdset) ? POLLIN : 0)
+ | (FD_ISSET (fds[i].fd, &wrset) ? POLLOUT : 0)
+ | (FD_ISSET (fds[i].fd, &exset) ? POLLPRI : 0);
+ }
+ return val;
+}
+#endif /* !HAVE_POLL */