xref: /freebsd/tests/sys/kqueue/libkqueue/user.c (revision 6be3386466ab79a84b48429ae66244f21526d3df)
1 /*
2  * Copyright (c) 2009 Mark Heily <mark@heily.com>
3  *
4  * Permission to use, copy, modify, and distribute this software for any
5  * purpose with or without fee is hereby granted, provided that the above
6  * copyright notice and this permission notice appear in all copies.
7  *
8  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
9  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
10  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
11  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
12  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
13  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
14  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
15  *
16  * $FreeBSD$
17  */
18 
19 #include "common.h"
20 
21 
22 static void
23 add_and_delete(void)
24 {
25     const char *test_id = "kevent(EVFILT_USER, EV_ADD and EV_DELETE)";
26     struct kevent kev;
27 
28     test_begin(test_id);
29 
30     kevent_add(kqfd, &kev, 1, EVFILT_USER, EV_ADD, 0, 0, NULL);
31     test_no_kevents();
32 
33     kevent_add(kqfd, &kev, 1, EVFILT_USER, EV_DELETE, 0, 0, NULL);
34     test_no_kevents();
35 
36     success();
37 }
38 
39 static void
40 event_wait(void)
41 {
42     const char *test_id = "kevent(EVFILT_USER, wait)";
43     struct kevent kev;
44 
45     test_begin(test_id);
46 
47     test_no_kevents();
48 
49     /* Add the event, and then trigger it */
50     kevent_add(kqfd, &kev, 1, EVFILT_USER, EV_ADD | EV_CLEAR, 0, 0, NULL);
51     kevent_add(kqfd, &kev, 1, EVFILT_USER, 0, NOTE_TRIGGER, 0, NULL);
52 
53     kev.fflags &= ~NOTE_FFCTRLMASK;
54     kev.fflags &= ~NOTE_TRIGGER;
55     kev.flags = EV_CLEAR;
56     kevent_cmp(&kev, kevent_get(kqfd));
57 
58     test_no_kevents();
59 
60     success();
61 }
62 
63 static void
64 disable_and_enable(void)
65 {
66     const char *test_id = "kevent(EVFILT_USER, EV_DISABLE and EV_ENABLE)";
67     struct kevent kev;
68 
69     test_begin(test_id);
70 
71     test_no_kevents();
72 
73     kevent_add(kqfd, &kev, 1, EVFILT_USER, EV_ADD, 0, 0, NULL);
74     kevent_add(kqfd, &kev, 1, EVFILT_USER, EV_DISABLE, 0, 0, NULL);
75 
76     /* Trigger the event, but since it is disabled, nothing will happen. */
77     kevent_add(kqfd, &kev, 1, EVFILT_USER, 0, NOTE_TRIGGER, 0, NULL);
78     test_no_kevents();
79 
80     kevent_add(kqfd, &kev, 1, EVFILT_USER, EV_ENABLE, 0, 0, NULL);
81     kevent_add(kqfd, &kev, 1, EVFILT_USER, 0, NOTE_TRIGGER, 0, NULL);
82 
83     kev.flags = EV_CLEAR;
84     kev.fflags &= ~NOTE_FFCTRLMASK;
85     kev.fflags &= ~NOTE_TRIGGER;
86     kevent_cmp(&kev, kevent_get(kqfd));
87 
88     success();
89 }
90 
91 static void
92 oneshot(void)
93 {
94     const char *test_id = "kevent(EVFILT_USER, EV_ONESHOT)";
95     struct kevent kev;
96 
97     test_begin(test_id);
98 
99     test_no_kevents();
100 
101     kevent_add(kqfd, &kev, 2, EVFILT_USER, EV_ADD | EV_ONESHOT, 0, 0, NULL);
102 
103     puts("  -- event 1");
104     kevent_add(kqfd, &kev, 2, EVFILT_USER, 0, NOTE_TRIGGER, 0, NULL);
105 
106     kev.flags = EV_ONESHOT;
107     kev.fflags &= ~NOTE_FFCTRLMASK;
108     kev.fflags &= ~NOTE_TRIGGER;
109     kevent_cmp(&kev, kevent_get(kqfd));
110 
111     test_no_kevents();
112 
113     success();
114 }
115 
116 void
117 test_evfilt_user(void)
118 {
119     kqfd = kqueue();
120 
121     add_and_delete();
122     event_wait();
123     disable_and_enable();
124     oneshot();
125     /* TODO: try different fflags operations */
126 
127     close(kqfd);
128 }
129