67 lines
2.4 KiB
C
67 lines
2.4 KiB
C
/*-
|
|
* Copyright (c) 1999,2000 Jonathan Lemon <jlemon@FreeBSD.org>
|
|
* All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
* SUCH DAMAGE.
|
|
*
|
|
* $FreeBSD$
|
|
*/
|
|
|
|
#ifndef _SYS_EVENTVAR_H_
|
|
#define _SYS_EVENTVAR_H_
|
|
|
|
#ifndef _KERNEL
|
|
#error "no user-servicable parts inside"
|
|
#endif
|
|
|
|
#include <sys/_task.h>
|
|
|
|
#define KQ_NEVENTS 8 /* minimize copy{in,out} calls */
|
|
#define KQEXTENT 256 /* linear growth by this amount */
|
|
|
|
struct kqueue {
|
|
struct mtx kq_lock;
|
|
int kq_refcnt;
|
|
TAILQ_ENTRY(kqueue) kq_list;
|
|
TAILQ_HEAD(, knote) kq_head; /* list of pending event */
|
|
int kq_count; /* number of pending events */
|
|
struct selinfo kq_sel;
|
|
struct sigio *kq_sigio;
|
|
struct filedesc *kq_fdp;
|
|
int kq_state;
|
|
#define KQ_SEL 0x01
|
|
#define KQ_SLEEP 0x02
|
|
#define KQ_FLUXWAIT 0x04 /* waiting for a in flux kn */
|
|
#define KQ_ASYNC 0x08
|
|
#define KQ_CLOSING 0x10
|
|
#define KQ_TASKSCHED 0x20 /* task scheduled */
|
|
#define KQ_TASKDRAIN 0x40 /* waiting for task to drain */
|
|
int kq_knlistsize; /* size of knlist */
|
|
struct klist *kq_knlist; /* list of knotes */
|
|
u_long kq_knhashmask; /* size of knhash */
|
|
struct klist *kq_knhash; /* hash table for knotes */
|
|
struct task kq_task;
|
|
struct ucred *kq_cred;
|
|
};
|
|
|
|
#endif /* !_SYS_EVENTVAR_H_ */
|