xref: /freebsd/contrib/libevent/kqueue-internal.h (revision c6879c6c14eedbd060ba588a3129a6c60ebbe783)
1*c43e99fdSEd Maste /*
2*c43e99fdSEd Maste  * Copyright (c) 2012 Niels Provos and Nick Mathewson
3*c43e99fdSEd Maste  *
4*c43e99fdSEd Maste  * Redistribution and use in source and binary forms, with or without
5*c43e99fdSEd Maste  * modification, are permitted provided that the following conditions
6*c43e99fdSEd Maste  * are met:
7*c43e99fdSEd Maste  * 1. Redistributions of source code must retain the above copyright
8*c43e99fdSEd Maste  *    notice, this list of conditions and the following disclaimer.
9*c43e99fdSEd Maste  * 2. Redistributions in binary form must reproduce the above copyright
10*c43e99fdSEd Maste  *    notice, this list of conditions and the following disclaimer in the
11*c43e99fdSEd Maste  *    documentation and/or other materials provided with the distribution.
12*c43e99fdSEd Maste  * 3. The name of the author may not be used to endorse or promote products
13*c43e99fdSEd Maste  *    derived from this software without specific prior written permission.
14*c43e99fdSEd Maste  *
15*c43e99fdSEd Maste  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
16*c43e99fdSEd Maste  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
17*c43e99fdSEd Maste  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
18*c43e99fdSEd Maste  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
19*c43e99fdSEd Maste  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
20*c43e99fdSEd Maste  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
21*c43e99fdSEd Maste  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
22*c43e99fdSEd Maste  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
23*c43e99fdSEd Maste  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
24*c43e99fdSEd Maste  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
25*c43e99fdSEd Maste  */
26*c43e99fdSEd Maste #ifndef KQUEUE_INTERNAL_H_INCLUDED_
27*c43e99fdSEd Maste #define KQUEUE_INTERNAL_H_INCLUDED_
28*c43e99fdSEd Maste 
29*c43e99fdSEd Maste /** Notification function, used to tell an event base to wake up from another
30*c43e99fdSEd Maste  * thread.  Only works when event_kq_add_notify_event_() has previously been
31*c43e99fdSEd Maste  * called successfully on that base. */
32*c43e99fdSEd Maste int event_kq_notify_base_(struct event_base *base);
33*c43e99fdSEd Maste 
34*c43e99fdSEd Maste /** Prepare a kqueue-using event base to receive notifications via an internal
35*c43e99fdSEd Maste  * EVFILT_USER event.  Return 0 on sucess, -1 on failure.
36*c43e99fdSEd Maste  */
37*c43e99fdSEd Maste int event_kq_add_notify_event_(struct event_base *base);
38*c43e99fdSEd Maste 
39*c43e99fdSEd Maste #endif
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