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Diffstat (limited to 'trunk/src/ioops.h')
-rw-r--r-- | trunk/src/ioops.h | 51 |
1 files changed, 51 insertions, 0 deletions
diff --git a/trunk/src/ioops.h b/trunk/src/ioops.h new file mode 100644 index 000000000..e797a7153 --- /dev/null +++ b/trunk/src/ioops.h @@ -0,0 +1,51 @@ +/* the Music Player Daemon (MPD) + * Copyright (C) 2003-2007 by Warren Dukes (warren.dukes@gmail.com) + * This project's homepage is: http://www.musicpd.org + * + * 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ + +#ifndef IOOPS_H +#define IOOPS_H + +#include <sys/select.h> + +struct ioOps { + struct ioOps *prev, *next; + + /* + * Called before each 'select' statement. + * To register for IO, call FD_SET for each required queue + * Return the highest fd number you registered + */ + int (*fdset) ( fd_set *rfds, fd_set *wfds, fd_set *efds ); + + /* + * Called after each 'select' statement. + * fdCount is the number of fds total in all sets. It may be 0. + * For each fd you registered for in (fdset), you should FD_CLR it from the + * appropriate queue(s). + * Return the total number of fds left in all sets (Ie, return fdCount + * minus the number of times you called FD_CLR). + */ + int (*consume) ( int fdCount, fd_set *rfds, fd_set *wfds, fd_set *efds ); +}; + +/* Call this to register your io operation handler struct */ +void registerIO( struct ioOps *ops ); + +/* Call this to deregister your io operation handler struct */ +void deregisterIO( struct ioOps *ops ); + +#endif |