mirror of
https://github.com/darlinghq/darling-libkqueue.git
synced 2024-10-07 01:03:27 +00:00
cdc4911ce2
git-svn-id: svn://svn.code.sf.net/p/libkqueue/code/trunk@394 fb4e3144-bc1c-4b72-a658-5bcd248dd7f7
201 lines
6.7 KiB
C
201 lines
6.7 KiB
C
/*-
|
|
* Copyright (c) 2009 Mark Heily <mark@heily.com>
|
|
* Copyright (c) 1999,2000,2001 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.
|
|
*
|
|
* $FreeBSD SVN Revision 197533$
|
|
*/
|
|
|
|
#ifndef _SYS_EVENT_H_
|
|
#define _SYS_EVENT_H_
|
|
|
|
#include <sys/types.h>
|
|
|
|
#ifdef __KERNEL__
|
|
#define intptr_t long
|
|
#else
|
|
#include <sys/types.h>
|
|
#include <stdint.h>
|
|
#define LIBKQUEUE 1
|
|
#endif
|
|
|
|
struct timespec;
|
|
|
|
#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_LIO (-10) /* attached to lio requests */
|
|
#define EVFILT_USER (-11) /* User events */
|
|
#define EVFILT_SYSCOUNT 11
|
|
|
|
#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 */
|
|
unsigned short flags;
|
|
unsigned 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_RECEIPT 0x0040 /* force EV_ERROR on success, data=0 */
|
|
#define EV_DISPATCH 0x0080 /* disable event 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/masks for EVFILT_USER
|
|
*
|
|
* On input, the top two bits of fflags specifies how the lower twenty four
|
|
* bits should be applied to the stored value of fflags.
|
|
*
|
|
* On output, the top two bits will always be set to NOTE_FFNOP and the
|
|
* remaining twenty four bits will contain the stored fflags value.
|
|
*/
|
|
#define NOTE_FFNOP 0x00000000 /* ignore input fflags */
|
|
#define NOTE_FFAND 0x40000000 /* AND fflags */
|
|
#define NOTE_FFOR 0x80000000 /* OR fflags */
|
|
#define NOTE_FFCOPY 0xc0000000 /* copy fflags */
|
|
#define NOTE_FFCTRLMASK 0xc0000000 /* masks for operations */
|
|
#define NOTE_FFLAGSMASK 0x00ffffff
|
|
|
|
#define NOTE_TRIGGER 0x01000000 /* Cause the event to be
|
|
triggered for output. */
|
|
|
|
/*
|
|
* data/hint flags for EVFILT_{READ|WRITE}
|
|
*/
|
|
#define NOTE_LOWAT 0x0001 /* low water mark */
|
|
#undef NOTE_LOWAT /* Not supported on Linux */
|
|
|
|
/*
|
|
* data/hint flags for EVFILT_VNODE
|
|
*/
|
|
#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 */
|
|
#undef NOTE_REVOKE /* Not supported on Linux */
|
|
|
|
/*
|
|
* data/hint flags for EVFILT_PROC
|
|
*/
|
|
#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
|
|
*/
|
|
#define NOTE_LINKUP 0x0001 /* link is up */
|
|
#define NOTE_LINKDOWN 0x0002 /* link is down */
|
|
#define NOTE_LINKINV 0x0004 /* link state is invalid */
|
|
|
|
/* KLUDGE: This is from <sys/mount.h> on FreeBSD and is used by
|
|
the EVFILT_FS filter. */
|
|
/* vfsquery flags */
|
|
#define VQ_NOTRESP 0x0001 /* server down */
|
|
#define VQ_NEEDAUTH 0x0002 /* server bad auth */
|
|
#define VQ_LOWDISK 0x0004 /* we're low on space */
|
|
#define VQ_MOUNT 0x0008 /* new filesystem arrived */
|
|
#define VQ_UNMOUNT 0x0010 /* filesystem has left */
|
|
#define VQ_DEAD 0x0020 /* filesystem is dead, needs force unmount */
|
|
#define VQ_ASSIST 0x0040 /* filesystem needs assistance from external
|
|
program */
|
|
#define VQ_NOTRESPLOCK 0x0080 /* server lockd down */
|
|
|
|
|
|
#ifndef __KERNEL__
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
|
|
#ifdef _WIN32
|
|
|
|
struct timespec {
|
|
time_t tv_sec;
|
|
long tv_nsec;
|
|
};
|
|
|
|
__declspec(dllexport) int
|
|
kqueue(void);
|
|
|
|
__declspec(dllexport) int
|
|
kevent(int kq, const struct kevent *changelist, int nchanges,
|
|
struct kevent *eventlist, int nevents,
|
|
const struct timespec *timeout);
|
|
|
|
#else
|
|
int kqueue(void);
|
|
int kevent(int kq, const struct kevent *changelist, int nchanges,
|
|
struct kevent *eventlist, int nevents,
|
|
const struct timespec *timeout);
|
|
#endif
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
#endif /* !__KERNEL__* */
|
|
|
|
#endif /* !_SYS_EVENT_H_ */
|