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
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
|
/*
* Copyright © 2019 Intel Corporation
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice (including the next
* paragraph) shall be included in all copies or substantial portions of the
* Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
* IN THE SOFTWARE.
*
*/
#ifndef IGT_LIB_TESTS_COMMON_H
#define IGT_LIB_TESTS_COMMON_H
#include <assert.h>
#include <sys/wait.h>
#include <errno.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <regex.h>
/*
* We need to hide assert from the cocci igt test refactor spatch.
*
* IMPORTANT: Test infrastructure tests are the only valid places where using
* assert is allowed.
*/
#define internal_assert assert
static inline void internal_assert_wexited(int wstatus, int exitcode)
{
internal_assert(WIFEXITED(wstatus) &&
WEXITSTATUS(wstatus) == exitcode);
}
static inline void internal_assert_wsignaled(int wstatus, int signal)
{
internal_assert(WIFSIGNALED(wstatus) &&
WTERMSIG(wstatus) == signal);
}
static inline void internal_assert_not_wsignaled(int wstatus)
{
internal_assert(!WIFSIGNALED(wstatus));
}
static inline int do_fork(void (*test_to_run)(void))
{
int pid, status;
switch (pid = fork()) {
case -1:
internal_assert(0);
case 0:
test_to_run();
default:
while (waitpid(pid, &status, 0) == -1 &&
errno == EINTR)
;
return status;
}
}
static inline pid_t do_fork_bg_with_pipes(void (*test_to_run)(void), int *out, int *err)
{
int outfd[2], errfd[2];
pid_t pid;
if (out != NULL)
internal_assert(pipe(outfd) != -1);
if (err != NULL)
internal_assert(pipe(errfd) != -1);
pid = fork();
internal_assert(pid != -1);
if (pid == 0) {
/* we'll leak the /dev/null fds, let them die with the forked
* process, also close reading ends if they are any */
if (out == NULL)
outfd[1] = open("/dev/null", O_WRONLY);
else
close(outfd[0]);
if (err == NULL)
errfd[1] = open("/dev/null", O_WRONLY);
else
close(errfd[0]);
while (dup2(outfd[1], STDOUT_FILENO) == -1 && errno == EINTR) {}
while (dup2(errfd[1], STDERR_FILENO) == -1 && errno == EINTR) {}
close(outfd[1]);
close(errfd[1]);
test_to_run();
exit(-1);
} else {
/* close the writing ends */
if (out != NULL) {
close(outfd[1]);
*out = outfd[0];
}
if (err != NULL) {
close(errfd[1]);
*err = errfd[0];
}
return pid;
}
}
static inline int safe_wait(pid_t pid, int *status) {
int ret;
do {
ret = waitpid(pid, status, 0);
} while (ret == -1 && errno == EINTR);
return ret;
}
static inline void assert_pipe_empty(int fd)
{
char buf[5];
internal_assert(0 == read(fd, buf, sizeof(buf)));
}
static inline void read_whole_pipe(int fd, char *buf, size_t buflen)
{
ssize_t readlen;
off_t offset;
offset = 0;
while ((readlen = read(fd, buf+offset, buflen-offset))) {
if (readlen == -1) {
if (errno == EINTR) {
continue;
} else {
printf("read failed with %s\n", strerror(errno));
exit(1);
}
}
internal_assert(readlen != -1);
offset += readlen;
}
}
static inline bool matches(char *str, const char *regex)
{
int ret;
regex_t reg;
ret = regcomp(®, regex, REG_EXTENDED | REG_NEWLINE);
if (ret == 0)
ret = regexec(®, str, 0, NULL, 0);
if (0 != ret && REG_NOMATCH != ret) {
char err[256];
regerror(ret, ®, err, sizeof(err));
printf("%s\n", err);
abort();
}
regfree(®);
return !ret;
}
#endif
|
