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
|
/*
* Copyright © 2012 Collabora, Ltd.
*
* 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.
*/
#include <assert.h>
#include <errno.h>
#include <dirent.h>
#include <stdio.h>
#include <unistd.h>
#include <time.h>
#include "test-runner.h"
int
count_open_fds(void)
{
DIR *dir;
struct dirent *ent;
int count = 0;
dir = opendir("/proc/self/fd");
assert(dir && "opening /proc/self/fd failed.");
errno = 0;
while ((ent = readdir(dir))) {
const char *s = ent->d_name;
if (s[0] == '.' && (s[1] == 0 || (s[1] == '.' && s[2] == 0)))
continue;
count++;
}
assert(errno == 0 && "reading /proc/self/fd failed.");
closedir(dir);
return count;
}
void
exec_fd_leak_check(int nr_expected_fds)
{
const char *exe = "./exec-fd-leak-checker";
char number[16] = { 0 };
snprintf(number, sizeof number - 1, "%d", nr_expected_fds);
execl(exe, exe, number, (char *)NULL);
assert(0 && "execing fd leak checker failed");
}
#define USEC_TO_NSEC(n) (1000 * (n))
/* our implementation of usleep and sleep functions that are safe to use with
* timeouts (timeouts are implemented using alarm(), so it is not safe use
* usleep and sleep. See man pages of these functions)
*/
void
test_usleep(useconds_t usec)
{
struct timespec ts = {
.tv_sec = 0,
.tv_nsec = USEC_TO_NSEC(usec)
};
assert(nanosleep(&ts, NULL) == 0);
}
/* we must write the whole function instead of
* wrapping test_usleep, because useconds_t may not
* be able to contain such a big number of microseconds */
void
test_sleep(unsigned int sec)
{
struct timespec ts = {
.tv_sec = sec,
.tv_nsec = 0
};
assert(nanosleep(&ts, NULL) == 0);
}
|
