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1 | #include <pthread.h> | |
2 | #include <stdio.h> | |
3 | #include <stdlib.h> | |
4 | ||
5 | ||
6 | static pthread_barrier_t b; | |
7 | static pthread_cond_t c = PTHREAD_COND_INITIALIZER; | |
8 | static pthread_mutex_t m = PTHREAD_MUTEX_INITIALIZER; | |
9 | ||
10 | ||
11 | static void | |
12 | cl (void *arg) | |
13 | { | |
14 | pthread_mutex_unlock (&m); | |
15 | } | |
16 | ||
17 | ||
18 | static void * | |
19 | tf (void *arg) | |
20 | { | |
21 | if (pthread_mutex_lock (&m) != 0) | |
22 | { | |
23 | printf ("%s: mutex_lock failed\n", __func__); | |
24 | exit (1); | |
25 | } | |
26 | int e = pthread_barrier_wait (&b); | |
27 | if (e != 0 && e != PTHREAD_BARRIER_SERIAL_THREAD) | |
28 | { | |
29 | printf ("%s: barrier_wait failed\n", __func__); | |
30 | exit (1); | |
31 | } | |
32 | pthread_cleanup_push (cl, NULL); | |
33 | /* We have to loop here because the cancellation might come after | |
34 | the cond_wait call left the cancelable area and is then waiting | |
35 | on the mutex. In this case the beginning of the second cond_wait | |
36 | call will cause the cancellation to happen. */ | |
37 | do | |
38 | if (pthread_cond_wait (&c, &m) != 0) | |
39 | { | |
40 | printf ("%s: cond_wait failed\n", __func__); | |
41 | exit (1); | |
42 | } | |
43 | while (arg == NULL); | |
44 | pthread_cleanup_pop (0); | |
45 | if (pthread_mutex_unlock (&m) != 0) | |
46 | { | |
47 | printf ("%s: mutex_unlock failed\n", __func__); | |
48 | exit (1); | |
49 | } | |
50 | return NULL; | |
51 | } | |
52 | ||
53 | ||
54 | static int | |
55 | do_test (void) | |
56 | { | |
57 | int status = 0; | |
58 | ||
59 | if (pthread_barrier_init (&b, NULL, 2) != 0) | |
60 | { | |
61 | puts ("barrier_init failed"); | |
62 | return 1; | |
63 | } | |
64 | ||
65 | pthread_t th; | |
66 | if (pthread_create (&th, NULL, tf, NULL) != 0) | |
67 | { | |
68 | puts ("1st create failed"); | |
69 | return 1; | |
70 | } | |
71 | int e = pthread_barrier_wait (&b); | |
72 | if (e != 0 && e != PTHREAD_BARRIER_SERIAL_THREAD) | |
73 | { | |
74 | puts ("1st barrier_wait failed"); | |
75 | return 1; | |
76 | } | |
77 | if (pthread_mutex_lock (&m) != 0) | |
78 | { | |
79 | puts ("1st mutex_lock failed"); | |
80 | return 1; | |
81 | } | |
82 | if (pthread_cond_signal (&c) != 0) | |
83 | { | |
84 | puts ("1st cond_signal failed"); | |
85 | return 1; | |
86 | } | |
87 | if (pthread_cancel (th) != 0) | |
88 | { | |
89 | puts ("cancel failed"); | |
90 | return 1; | |
91 | } | |
92 | if (pthread_mutex_unlock (&m) != 0) | |
93 | { | |
94 | puts ("1st mutex_unlock failed"); | |
95 | return 1; | |
96 | } | |
97 | void *res; | |
98 | if (pthread_join (th, &res) != 0) | |
99 | { | |
100 | puts ("1st join failed"); | |
101 | return 1; | |
102 | } | |
103 | if (res != PTHREAD_CANCELED) | |
104 | { | |
105 | puts ("first thread not canceled"); | |
106 | status = 1; | |
107 | } | |
108 | ||
109 | printf ("cond = { %llu, %llu, %u/%u/%u, %u/%u/%u, %u, %u }\n", | |
110 | c.__data.__wseq, c.__data.__g1_start, | |
111 | c.__data.__g_signals[0], c.__data.__g_refs[0], c.__data.__g_size[0], | |
112 | c.__data.__g_signals[1], c.__data.__g_refs[1], c.__data.__g_size[1], | |
113 | c.__data.__g1_orig_size, c.__data.__wrefs); | |
114 | ||
115 | if (pthread_create (&th, NULL, tf, (void *) 1l) != 0) | |
116 | { | |
117 | puts ("2nd create failed"); | |
118 | return 1; | |
119 | } | |
120 | e = pthread_barrier_wait (&b); | |
121 | if (e != 0 && e != PTHREAD_BARRIER_SERIAL_THREAD) | |
122 | { | |
123 | puts ("2nd barrier_wait failed"); | |
124 | return 1; | |
125 | } | |
126 | if (pthread_mutex_lock (&m) != 0) | |
127 | { | |
128 | puts ("2nd mutex_lock failed"); | |
129 | return 1; | |
130 | } | |
131 | if (pthread_cond_signal (&c) != 0) | |
132 | { | |
133 | puts ("2nd cond_signal failed"); | |
134 | return 1; | |
135 | } | |
136 | if (pthread_mutex_unlock (&m) != 0) | |
137 | { | |
138 | puts ("2nd mutex_unlock failed"); | |
139 | return 1; | |
140 | } | |
141 | if (pthread_join (th, &res) != 0) | |
142 | { | |
143 | puts ("2nd join failed"); | |
144 | return 1; | |
145 | } | |
146 | if (res != NULL) | |
147 | { | |
148 | puts ("2nd thread canceled"); | |
149 | status = 1; | |
150 | } | |
151 | ||
152 | printf ("cond = { %llu, %llu, %u/%u/%u, %u/%u/%u, %u, %u }\n", | |
153 | c.__data.__wseq, c.__data.__g1_start, | |
154 | c.__data.__g_signals[0], c.__data.__g_refs[0], c.__data.__g_size[0], | |
155 | c.__data.__g_signals[1], c.__data.__g_refs[1], c.__data.__g_size[1], | |
156 | c.__data.__g1_orig_size, c.__data.__wrefs); | |
157 | ||
158 | return status; | |
159 | } | |
160 | ||
161 | #define TEST_FUNCTION do_test () | |
162 | #include "../test-skeleton.c" |