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Merge pull request #162 from dawgfoto/kqueue
sys/event header for FreeBSD
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/** | ||
* D header file for FreeBSD. | ||
* | ||
* Copyright: Copyright Martin Nowak 2012. | ||
* License: <a href="http://www.boost.org/LICENSE_1_0.txt">Boost License 1.0</a>. | ||
* Authors: Martin Nowak | ||
*/ | ||
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/* Copyright Martin Nowak 2012. | ||
* Distributed under the Boost Software License, Version 1.0. | ||
* (See accompanying file LICENSE_1_0.txt or copy at | ||
* http://www.boost.org/LICENSE_1_0.txt) | ||
*/ | ||
module core.sys.freebsd.sys.event; | ||
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import core.stdc.stdint; // intptr_t, uintptr_t | ||
import core.sys.posix.time; // timespec | ||
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extern(C): | ||
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enum | ||
{ | ||
EVFILT_READ = -1, | ||
EVFILT_WRITE = -2, | ||
EVFILT_AIO = -3, /* attached to aio requests */ | ||
EVFILT_VNODE = -4, /* attached to vnodes */ | ||
EVFILT_PROC = -5, /* attached to struct proc */ | ||
EVFILT_SIGNAL = -6, /* attached to struct proc */ | ||
EVFILT_TIMER = -7, /* timers */ | ||
// EVFILT_NETDEV = -8, /* no longer supported */ | ||
EVFILT_FS = -9, /* filesystem events */ | ||
EVFILT_LIO = -10, /* attached to lio requests */ | ||
EVFILT_USER = -11, /* User events */ | ||
EVFILT_SYSCOUNT = 11, | ||
} | ||
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extern(D) void EV_SET(kevent_t* kevp, typeof(kevent_t.tupleof) args) | ||
{ | ||
*kevp = kevent_t(args); | ||
} | ||
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struct kevent_t | ||
{ | ||
uintptr_t ident; /* identifier for this event */ | ||
short filter; /* filter for event */ | ||
ushort flags; | ||
uint fflags; | ||
intptr_t data; | ||
void *udata; /* opaque user data identifier */ | ||
}; | ||
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enum | ||
{ | ||
/* actions */ | ||
EV_ADD = 0x0001, /* add event to kq (implies enable) */ | ||
EV_DELETE = 0x0002, /* delete event from kq */ | ||
EV_ENABLE = 0x0004, /* enable event */ | ||
EV_DISABLE = 0x0008, /* disable event (not reported) */ | ||
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/* flags */ | ||
EV_ONESHOT = 0x0010, /* only report one occurrence */ | ||
EV_CLEAR = 0x0020, /* clear event state after reporting */ | ||
EV_RECEIPT = 0x0040, /* force EV_ERROR on success, data=0 */ | ||
EV_DISPATCH = 0x0080, /* disable event after reporting */ | ||
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EV_SYSFLAGS = 0xF000, /* reserved by system */ | ||
EV_FLAG1 = 0x2000, /* filter-specific flag */ | ||
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/* returned values */ | ||
EV_EOF = 0x8000, /* EOF detected */ | ||
EV_ERROR = 0x4000, /* error, data contains errno */ | ||
} | ||
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enum | ||
{ | ||
/* | ||
* data/hint flags/masks for EVFILT_USER, shared with userspace | ||
* | ||
* 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. | ||
*/ | ||
NOTE_FFNOP = 0x00000000, /* ignore input fflags */ | ||
NOTE_FFAND = 0x40000000, /* AND fflags */ | ||
NOTE_FFOR = 0x80000000, /* OR fflags */ | ||
NOTE_FFCOPY = 0xc0000000, /* copy fflags */ | ||
NOTE_FFCTRLMASK = 0xc0000000, /* masks for operations */ | ||
NOTE_FFLAGSMASK = 0x00ffffff, | ||
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NOTE_TRIGGER = 0x01000000, /* Cause the event to be | ||
triggered for output. */ | ||
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/* | ||
* data/hint flags for EVFILT_{READ|WRITE}, shared with userspace | ||
*/ | ||
NOTE_LOWAT = 0x0001, /* low water mark */ | ||
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/* | ||
* data/hint flags for EVFILT_VNODE, shared with userspace | ||
*/ | ||
NOTE_DELETE = 0x0001, /* vnode was removed */ | ||
NOTE_WRITE = 0x0002, /* data contents changed */ | ||
NOTE_EXTEND = 0x0004, /* size increased */ | ||
NOTE_ATTRIB = 0x0008, /* attributes changed */ | ||
NOTE_LINK = 0x0010, /* link count changed */ | ||
NOTE_RENAME = 0x0020, /* vnode was renamed */ | ||
NOTE_REVOKE = 0x0040, /* vnode access was revoked */ | ||
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/* | ||
* data/hint flags for EVFILT_PROC, shared with userspace | ||
*/ | ||
NOTE_EXIT = 0x80000000, /* process exited */ | ||
NOTE_FORK = 0x40000000, /* process forked */ | ||
NOTE_EXEC = 0x20000000, /* process exec'd */ | ||
NOTE_PCTRLMASK = 0xf0000000, /* mask for hint bits */ | ||
NOTE_PDATAMASK = 0x000fffff, /* mask for pid */ | ||
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/* additional flags for EVFILT_PROC */ | ||
NOTE_TRACK = 0x00000001, /* follow across forks */ | ||
NOTE_TRACKERR = 0x00000002, /* could not track child */ | ||
NOTE_CHILD = 0x00000004, /* am a child process */ | ||
} | ||
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int kqueue(); | ||
int kevent(int kq, const kevent_t *changelist, int nchanges, | ||
kevent_t *eventlist, int nevents, | ||
const timespec *timeout); |
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