ReactOS 0.4.15-dev-7712-gbbbcd8e
event.h
Go to the documentation of this file.
1/*-
2 * Copyright (c) 1999,2000,2001 Jonathan Lemon <jlemon@FreeBSD.org>
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24 * SUCH DAMAGE.
25 *
26 * $FreeBSD: src/sys/sys/event.h,v 1.22 2003/02/02 19:39:51 nectar Exp $
27 */
28
29#ifndef _TIRPC_EVENT_H_
30#define _TIRPC_EVENT_H_
31
32#define EVFILT_READ (-1)
33#define EVFILT_WRITE (-2)
34#define EVFILT_AIO (-3) /* attached to aio requests */
35#define EVFILT_VNODE (-4) /* attached to vnodes */
36#define EVFILT_PROC (-5) /* attached to struct proc */
37#define EVFILT_SIGNAL (-6) /* attached to struct proc */
38#define EVFILT_TIMER (-7) /* timers */
39#define EVFILT_NETDEV (-8) /* network devices */
40
41#define EVFILT_SYSCOUNT 8
42
43#define EV_SET(kevp_, a, b, c, d, e, f) do { \
44 struct kevent *kevp = (kevp_); \
45 (kevp)->ident = (a); \
46 (kevp)->filter = (b); \
47 (kevp)->flags = (c); \
48 (kevp)->fflags = (d); \
49 (kevp)->data = (e); \
50 (kevp)->udata = (f); \
51} while(0)
52
53#include <stdint.h>
54
55struct kevent {
56 uintptr_t ident; /* identifier for this event */
57 short filter; /* filter for event */
61 void *udata; /* opaque user data identifier */
62};
63
64/* actions */
65#define EV_ADD 0x0001 /* add event to kq (implies enable) */
66#define EV_DELETE 0x0002 /* delete event from kq */
67#define EV_ENABLE 0x0004 /* enable event */
68#define EV_DISABLE 0x0008 /* disable event (not reported) */
69
70/* flags */
71#define EV_ONESHOT 0x0010 /* only report one occurrence */
72#define EV_CLEAR 0x0020 /* clear event state after reporting */
73
74#define EV_SYSFLAGS 0xF000 /* reserved by system */
75#define EV_FLAG1 0x2000 /* filter-specific flag */
76
77/* returned values */
78#define EV_EOF 0x8000 /* EOF detected */
79#define EV_ERROR 0x4000 /* error, data contains errno */
80
81/*
82 * data/hint flags for EVFILT_{READ|WRITE}, shared with userspace
83 */
84#define NOTE_LOWAT 0x0001 /* low water mark */
85
86/*
87 * data/hint flags for EVFILT_VNODE, shared with userspace
88 */
89#define NOTE_DELETE 0x0001 /* vnode was removed */
90#define NOTE_WRITE 0x0002 /* data contents changed */
91#define NOTE_EXTEND 0x0004 /* size increased */
92#define NOTE_ATTRIB 0x0008 /* attributes changed */
93#define NOTE_LINK 0x0010 /* link count changed */
94#define NOTE_RENAME 0x0020 /* vnode was renamed */
95#define NOTE_REVOKE 0x0040 /* vnode access was revoked */
96
97/*
98 * data/hint flags for EVFILT_PROC, shared with userspace
99 */
100#define NOTE_EXIT 0x80000000 /* process exited */
101#define NOTE_FORK 0x40000000 /* process forked */
102#define NOTE_EXEC 0x20000000 /* process exec'd */
103#define NOTE_PCTRLMASK 0xf0000000 /* mask for hint bits */
104#define NOTE_PDATAMASK 0x000fffff /* mask for pid */
105
106/* additional flags for EVFILT_PROC */
107#define NOTE_TRACK 0x00000001 /* follow across forks */
108#define NOTE_TRACKERR 0x00000002 /* could not track child */
109#define NOTE_CHILD 0x00000004 /* am a child process */
110
111/*
112 * data/hint flags for EVFILT_NETDEV, shared with userspace
113 */
114#define NOTE_LINKUP 0x0001 /* link is up */
115#define NOTE_LINKDOWN 0x0002 /* link is down */
116#define NOTE_LINKINV 0x0004 /* link state is invalid */
117
118/*
119 * This is currently visible to userland to work around broken
120 * programs which pull in <sys/proc.h>.
121 */
122#include <sys/queue.h>
123
124struct knote;
125SLIST_HEAD(klist, knote);
126
127#ifdef _KERNEL
128
129#ifdef MALLOC_DECLARE
130MALLOC_DECLARE(M_KQUEUE);
131#endif
132
133#define KNOTE(list, hint) if ((list) != NULL) knote(list, hint)
134
135/*
136 * Flag indicating hint is a signal. Used by EVFILT_SIGNAL, and also
137 * shared by EVFILT_PROC (all knotes attached to p->p_klist)
138 */
139#define NOTE_SIGNAL 0x08000000
140
141struct filterops {
142 int f_isfd; /* true if ident == filedescriptor */
143 int (*f_attach)(struct knote *kn);
144 void (*f_detach)(struct knote *kn);
145 int (*f_event)(struct knote *kn, long hint);
146};
147
148struct knote {
149 SLIST_ENTRY(knote) kn_link; /* for fd */
150 SLIST_ENTRY(knote) kn_selnext; /* for struct selinfo */
151 TAILQ_ENTRY(knote) kn_tqe;
152 struct kqueue *kn_kq; /* which queue we are on */
153 struct kevent kn_kevent;
154 int kn_status;
155 int kn_sfflags; /* saved filter flags */
156 intptr_t kn_sdata; /* saved data field */
157 union {
158 struct file *p_fp; /* file data pointer */
159 struct proc *p_proc; /* proc pointer */
160 } kn_ptr;
161 struct filterops *kn_fop;
162 void *kn_hook;
163#define KN_ACTIVE 0x01 /* event has been triggered */
164#define KN_QUEUED 0x02 /* event is on queue */
165#define KN_DISABLED 0x04 /* event is disabled */
166#define KN_DETACHED 0x08 /* knote is detached */
167
168#define kn_id kn_kevent.ident
169#define kn_filter kn_kevent.filter
170#define kn_flags kn_kevent.flags
171#define kn_fflags kn_kevent.fflags
172#define kn_data kn_kevent.data
173#define kn_fp kn_ptr.p_fp
174};
175
176struct thread;
177struct proc;
178
179extern void knote(struct klist *list, long hint);
180extern void knote_remove(struct thread *p, struct klist *list);
181extern void knote_fdclose(struct thread *p, int fd);
182extern int kqueue_register(struct kqueue *kq,
183 struct kevent *kev, struct thread *p);
184extern int kqueue_add_filteropts(int filt, struct filterops *filtops);
185extern int kqueue_del_filteropts(int filt);
186
187#else /* !_KERNEL */
188
189//#include <sys/cdefs.h>
190struct timespec;
191
193int kqueue(void);
194int kevent(int kq, const struct kevent *changelist, int nchanges,
195 struct kevent *eventlist, int nevents,
196 const struct timespec *timeout);
198
199#endif /* !_KERNEL */
200
201#endif /* !_TIRPC_EVENT_H_ */
static HANDLE thread
Definition: service.c:33
Definition: list.h:37
int intptr_t
Definition: crtdefs.h:304
unsigned int uintptr_t
Definition: crtdefs.h:321
UINT32 u_int
Definition: types.h:82
unsigned short u_short
Definition: types.h:81
unsigned int(__cdecl typeof(jpeg_read_scanlines))(struct jpeg_decompress_struct *
Definition: typeof.h:31
__BEGIN_DECLS int kqueue(void)
GLfloat GLfloat p
Definition: glext.h:8902
static HANDLE proc()
Definition: pdb.c:34
static int fd
Definition: io.c:51
Definition: fci.c:127
Definition: event.h:55
u_short flags
Definition: event.h:58
intptr_t data
Definition: event.h:60
void * udata
Definition: event.h:61
u_int fflags
Definition: event.h:59
uintptr_t ident
Definition: event.h:56
short filter
Definition: event.h:57
Definition: dhcpd.h:245
Definition: time.h:88
#define SLIST_ENTRY(type)
Definition: queue.h:102
#define SLIST_HEAD(name, type)
Definition: queue.h:94
#define TAILQ_ENTRY(type)
Definition: queue.h:315
DWORD hint
Definition: vfdcmd.c:88
#define __END_DECLS
Definition: wintirpc.h:63
#define __BEGIN_DECLS
Definition: wintirpc.h:62