1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
|
/*
* Copyright (C) 2013 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include <gtest/gtest.h>
#include <errno.h>
#include <stdlib.h>
#include <sys/select.h>
TEST(sys_select, fd_set_smoke) {
fd_set fds;
FD_ZERO(&fds);
for (size_t i = 0; i < 1024; ++i) {
EXPECT_FALSE(FD_ISSET(i, &fds));
}
FD_SET(0, &fds);
EXPECT_TRUE(FD_ISSET(0, &fds));
EXPECT_FALSE(FD_ISSET(1, &fds));
FD_SET(1, &fds);
EXPECT_TRUE(FD_ISSET(0, &fds));
EXPECT_TRUE(FD_ISSET(1, &fds));
FD_CLR(0, &fds);
EXPECT_FALSE(FD_ISSET(0, &fds));
EXPECT_TRUE(FD_ISSET(1, &fds));
FD_CLR(1, &fds);
EXPECT_FALSE(FD_ISSET(0, &fds));
EXPECT_FALSE(FD_ISSET(1, &fds));
}
TEST(sys_select, select_smoke) {
fd_set r;
FD_ZERO(&r);
fd_set w;
FD_ZERO(&w);
fd_set e;
FD_ZERO(&e);
FD_SET(STDIN_FILENO, &r);
FD_SET(STDOUT_FILENO, &w);
FD_SET(STDERR_FILENO, &w);
int max = STDERR_FILENO + 1;
// Invalid max fd.
ASSERT_EQ(-1, select(-1, &r, &w, &e, NULL));
ASSERT_EQ(EINVAL, errno);
ASSERT_EQ(2, select(max, &r, &w, &e, NULL));
// Invalid timeout.
timeval tv;
tv.tv_sec = -1;
tv.tv_usec = 0;
ASSERT_EQ(-1, select(max, &r, &w, &e, &tv));
ASSERT_EQ(EINVAL, errno);
// Valid timeout...
tv.tv_sec = 1;
ASSERT_EQ(2, select(max, &r, &w, &e, &tv));
ASSERT_NE(0, tv.tv_usec); // ...which got updated.
}
TEST(sys_select, pselect_smoke) {
sigset_t ss;
sigemptyset(&ss);
sigaddset(&ss, SIGPIPE);
fd_set r;
FD_ZERO(&r);
fd_set w;
FD_ZERO(&w);
fd_set e;
FD_ZERO(&e);
FD_SET(STDIN_FILENO, &r);
FD_SET(STDOUT_FILENO, &w);
FD_SET(STDERR_FILENO, &w);
int max = STDERR_FILENO + 1;
// Invalid max fd.
ASSERT_EQ(-1, pselect(-1, &r, &w, &e, NULL, &ss));
ASSERT_EQ(EINVAL, errno);
ASSERT_EQ(2, pselect(max, &r, &w, &e, NULL, &ss));
// Invalid timeout.
timespec tv;
tv.tv_sec = -1;
tv.tv_nsec = 0;
ASSERT_EQ(-1, pselect(max, &r, &w, &e, &tv, &ss));
ASSERT_EQ(EINVAL, errno);
// Valid timeout...
tv.tv_sec = 1;
ASSERT_EQ(2, pselect(max, &r, &w, &e, &tv, &ss));
ASSERT_EQ(0, tv.tv_nsec); // ...which did _not_ get updated.
}
|
