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Commit | Line | Data |
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2a01ce56 UD |
1 | #include <errno.h> |
2 | #include <pthread.h> | |
3 | #include <stdio.h> | |
4 | #include <stdlib.h> | |
5 | #include <unistd.h> | |
6 | #include <sys/wait.h> | |
7 | ||
8 | #define NKEYS 100 | |
9 | static pthread_key_t keys[NKEYS]; | |
10 | static pthread_barrier_t b; | |
11 | ||
12 | ||
13 | static void * | |
14 | tf (void *arg) | |
15 | { | |
16 | void *res = NULL; | |
17 | for (int i = 0; i < NKEYS; ++i) | |
18 | { | |
19 | void *p = pthread_getspecific (keys[i]); | |
b25b0674 MS |
20 | /* Use an arbitrary but valid pointer as the value. */ |
21 | pthread_setspecific (keys[i], (void *) keys); | |
2a01ce56 UD |
22 | if (p != NULL) |
23 | res = p; | |
24 | } | |
25 | if (arg != NULL) | |
26 | { | |
27 | pthread_barrier_wait (arg); | |
28 | pthread_barrier_wait (arg); | |
29 | } | |
30 | return res; | |
31 | } | |
32 | ||
33 | ||
34 | static int | |
35 | do_test (void) | |
36 | { | |
37 | pthread_barrier_init (&b, NULL, 2); | |
38 | ||
39 | for (int i = 0; i < NKEYS; ++i) | |
40 | if (pthread_key_create (&keys[i], NULL) != 0) | |
41 | { | |
42 | puts ("cannot create keys"); | |
43 | return 1; | |
44 | } | |
45 | ||
46 | pthread_t th; | |
47 | if (pthread_create (&th, NULL, tf, &b) != 0) | |
48 | { | |
49 | puts ("cannot create thread in parent"); | |
50 | return 1; | |
51 | } | |
52 | ||
53 | pthread_barrier_wait (&b); | |
54 | ||
55 | pid_t pid = fork (); | |
56 | if (pid == 0) | |
57 | { | |
58 | if (pthread_create (&th, NULL, tf, NULL) != 0) | |
59 | { | |
60 | puts ("cannot create thread in child"); | |
61 | exit (1); | |
62 | } | |
63 | ||
64 | void *res; | |
65 | pthread_join (th, &res); | |
66 | ||
67 | exit (res != NULL); | |
68 | } | |
69 | else if (pid == -1) | |
70 | { | |
71 | puts ("cannot create child process"); | |
72 | return 1; | |
73 | } | |
74 | ||
75 | int s; | |
76 | if (TEMP_FAILURE_RETRY (waitpid (pid, &s, 0)) != pid) | |
77 | { | |
78 | puts ("failing to wait for child process"); | |
79 | return 1; | |
80 | } | |
81 | ||
82 | pthread_barrier_wait (&b); | |
83 | pthread_join (th, NULL); | |
84 | ||
85 | return !WIFEXITED (s) ? 2 : WEXITSTATUS (s); | |
86 | } | |
87 | ||
88 | ||
89 | #define TEST_FUNCTION do_test () | |
90 | #include "../test-skeleton.c" |