1 /* $OpenBSD$ */ 2 /* 3 * Copyright (c) 2008-2012 Alexandre Ratchov <alex@caoua.org> 4 * 5 * Permission to use, copy, modify, and distribute this software for any 6 * purpose with or without fee is hereby granted, provided that the above 7 * copyright notice and this permission notice appear in all copies. 8 * 9 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 10 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 11 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 12 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 13 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 14 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 15 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 16 */ 17 #ifndef SIOFILE_H 18 #define SIOFILE_H 19 20 #include "file.h" 21 22 struct dev; 23 24 struct dev_sio { 25 struct sio_hdl *hdl; 26 unsigned int todo; 27 #ifdef DEBUG 28 long long wtime, utime; 29 long long sum_wtime, sum_utime; 30 int pused, rused, events; 31 #endif 32 struct file *file; 33 #define DEV_SIO_READ 0 34 #define DEV_SIO_CYCLE 1 35 #define DEV_SIO_WRITE 2 36 int cstate; 37 struct timo watchdog; 38 }; 39 40 int dev_sio_open(struct dev *); 41 int dev_sio_reopen(struct dev *); 42 void dev_sio_close(struct dev *); 43 void dev_sio_log(struct dev *); 44 void dev_sio_start(struct dev *); 45 void dev_sio_stop(struct dev *); 46 47 #endif /* !defined(SIOFILE_H) */ 48