diff -r 000000000000 -r bde4ae8d615e os/ossrv/genericopenlibs/openenvcore/include/sys/event.h --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/os/ossrv/genericopenlibs/openenvcore/include/sys/event.h Fri Jun 15 03:10:57 2012 +0200 @@ -0,0 +1,202 @@ +/*- + * Copyright (c) 1999,2000,2001 Jonathan Lemon + * 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. + * Portions Copyright (c) 2007 Nokia Corporation and/or its subsidiary(-ies). All rights reserved. + * $FreeBSD: src/sys/sys/event.h,v 1.32 2005/07/01 16:28:32 ssouhlal Exp $ + */ + +#ifndef _SYS_EVENT_H_ +#define _SYS_EVENT_H_ + +#define EVFILT_READ (-1) +#define EVFILT_WRITE (-2) +#define EVFILT_AIO (-3) /* attached to aio requests */ +#define EVFILT_VNODE (-4) /* attached to vnodes */ +#define EVFILT_PROC (-5) /* attached to struct proc */ +#define EVFILT_SIGNAL (-6) /* attached to struct proc */ +#define EVFILT_TIMER (-7) /* timers */ +#define EVFILT_NETDEV (-8) /* network devices */ +#define EVFILT_FS (-9) /* filesystem events */ + +#define EVFILT_SYSCOUNT 9 + +#define EV_SET(kevp_, a, b, c, d, e, f) do { \ + struct kevent *kevp = (kevp_); \ + (kevp)->ident = (a); \ + (kevp)->filter = (b); \ + (kevp)->flags = (c); \ + (kevp)->fflags = (d); \ + (kevp)->data = (e); \ + (kevp)->udata = (f); \ +} while(0) + +struct kevent { + uintptr_t ident; /* identifier for this event */ + short filter; /* filter for event */ + u_short flags; + u_int fflags; + intptr_t data; + void *udata; /* opaque user data identifier */ +}; + +/* actions */ +#define EV_ADD 0x0001 /* add event to kq (implies enable) */ +#define EV_DELETE 0x0002 /* delete event from kq */ +#define EV_ENABLE 0x0004 /* enable event */ +#define EV_DISABLE 0x0008 /* disable event (not reported) */ + +/* flags */ +#define EV_ONESHOT 0x0010 /* only report one occurrence */ +#define EV_CLEAR 0x0020 /* clear event state after reporting */ + +#define EV_SYSFLAGS 0xF000 /* reserved by system */ +#define EV_FLAG1 0x2000 /* filter-specific flag */ + +/* returned values */ +#define EV_EOF 0x8000 /* EOF detected */ +#define EV_ERROR 0x4000 /* error, data contains errno */ + +/* + * data/hint flags for EVFILT_{READ|WRITE}, shared with userspace + */ +#define NOTE_LOWAT 0x0001 /* low water mark */ + +/* + * data/hint flags for EVFILT_VNODE, shared with userspace + */ +#define NOTE_DELETE 0x0001 /* vnode was removed */ +#define NOTE_WRITE 0x0002 /* data contents changed */ +#define NOTE_EXTEND 0x0004 /* size increased */ +#define NOTE_ATTRIB 0x0008 /* attributes changed */ +#define NOTE_LINK 0x0010 /* link count changed */ +#define NOTE_RENAME 0x0020 /* vnode was renamed */ +#define NOTE_REVOKE 0x0040 /* vnode access was revoked */ + +/* + * data/hint flags for EVFILT_PROC, shared with userspace + */ +#define NOTE_EXIT 0x80000000 /* process exited */ +#define NOTE_FORK 0x40000000 /* process forked */ +#define NOTE_EXEC 0x20000000 /* process exec'd */ +#define NOTE_PCTRLMASK 0xf0000000 /* mask for hint bits */ +#define NOTE_PDATAMASK 0x000fffff /* mask for pid */ + +/* additional flags for EVFILT_PROC */ +#define NOTE_TRACK 0x00000001 /* follow across forks */ +#define NOTE_TRACKERR 0x00000002 /* could not track child */ +#define NOTE_CHILD 0x00000004 /* am a child process */ + +/* + * data/hint flags for EVFILT_NETDEV, shared with userspace + */ +#define NOTE_LINKUP 0x0001 /* link is up */ +#define NOTE_LINKDOWN 0x0002 /* link is down */ +#define NOTE_LINKINV 0x0004 /* link state is invalid */ + +/* + * This is currently visible to userland to work around broken + * programs which pull in . + */ +#include +#include +#include +struct knote; +struct kqueue; +struct knlist { + struct klist kl_list; + void (*kl_lock)(void *); /* lock function */ + void (*kl_unlock)(void *); + int (*kl_locked)(void *); + void *kl_lockarg; /* argument passed to kl_lockf() */ +}; + + +#ifdef _KERNEL + +#define KNLIST_EMPTY(list) SLIST_EMPTY(&(list)->kl_list) + +/* + * Flag indicating hint is a signal. Used by EVFILT_SIGNAL, and also + * shared by EVFILT_PROC (all knotes attached to p->p_klist) + */ +#define NOTE_SIGNAL 0x08000000 + +struct filterops { + int f_isfd; /* true if ident == filedescriptor */ + int (*f_attach)(struct knote *kn); + void (*f_detach)(struct knote *kn); + int (*f_event)(struct knote *kn, long hint); +}; + +/* + * Setting the KN_INFLUX flag enables you to unlock the kq that this knote + * is on, and modify kn_status as if you had the KQ lock. + * + * kn_sfflags, kn_sdata, and kn_kevent are protected by the knlist lock. + */ +struct knote { + SLIST_ENTRY(knote) kn_link; /* for kq */ + SLIST_ENTRY(knote) kn_selnext; /* for struct selinfo */ + struct knlist *kn_knlist; /* f_attach populated */ + TAILQ_ENTRY(knote) kn_tqe; + struct kqueue *kn_kq; /* which queue we are on */ + struct kevent kn_kevent; + int kn_status; /* protected by kq lock */ +#define KN_ACTIVE 0x01 /* event has been triggered */ +#define KN_QUEUED 0x02 /* event is on queue */ +#define KN_DISABLED 0x04 /* event is disabled */ +#define KN_DETACHED 0x08 /* knote is detached */ +#define KN_INFLUX 0x10 /* knote is in flux */ +#define KN_MARKER 0x20 /* ignore this knote */ +#define KN_KQUEUE 0x40 /* this knote belongs to a kq */ +#define KN_HASKQLOCK 0x80 /* for _inevent */ + int kn_sfflags; /* saved filter flags */ + intptr_t kn_sdata; /* saved data field */ + union { + struct file *p_fp; /* file data pointer */ + struct proc *p_proc; /* proc pointer */ + } kn_ptr; + struct filterops *kn_fop; + void *kn_hook; + +#define kn_id kn_kevent.ident +#define kn_filter kn_kevent.filter +#define kn_flags kn_kevent.flags +#define kn_fflags kn_kevent.fflags +#define kn_data kn_kevent.data +#define kn_fp kn_ptr.p_fp +}; +struct kevent_copyops { + void *arg; + int (*k_copyout)(void *arg, struct kevent *kevp, int count); + int (*k_copyin)(void *arg, struct kevent *kevp, int count); +}; + +struct thread; +struct proc; +struct knlist; + +#endif /* !_KERNEL */ + +#endif /* !_SYS_EVENT_H_ */