Warning: That file was not part of the compilation database. It may have many parsing errors.

1#include <pthread.h>
2#include <stdio.h>
3#include <unistd.h>
4
5static int count = 0;
6
7static void *
8thread_add_one (void *arg)
9{
10 int tmp;
11 pthread_spinlock_t *lock = (pthread_spinlock_t *) arg;
12
13 /* When do_test holds the lock for 1 sec, the two thread will be
14 in contention for the lock. */
15 if (pthread_spin_lock (lock) != 0)
16 {
17 puts ("thread_add_one(): spin_lock failed");
18 pthread_exit ((void *) 1l);
19 }
20
21 /* sleep 1s before modifying count */
22 tmp = count;
23 sleep (1);
24 count = tmp + 1;
25
26 if (pthread_spin_unlock (lock) != 0)
27 {
28 puts ("thread_add_one(): spin_unlock failed");
29 pthread_exit ((void *) 1l);
30 }
31
32 return NULL;
33}
34
35static int
36do_test (void)
37{
38 pthread_t thr1, thr2;
39 pthread_spinlock_t lock;
40 int tmp;
41
42 if (pthread_spin_init (&lock, PTHREAD_PROCESS_PRIVATE) != 0)
43 {
44 puts ("spin_init failed");
45 return 1;
46 }
47
48 if (pthread_spin_lock (&lock) != 0)
49 {
50 puts ("1st spin_lock failed");
51 return 1;
52 }
53
54 if (pthread_create (&thr1, NULL, thread_add_one, (void *) &lock) != 0)
55 {
56 puts ("1st pthread_create failed");
57 return 1;
58 }
59
60 if (pthread_create (&thr2, NULL, thread_add_one, (void *) &lock) != 0)
61 {
62 puts ("2nd pthread_create failed");
63 return 1;
64 }
65
66 /* sleep 1s before modifying count */
67 tmp = count;
68 sleep (1);
69 count = tmp + 1;
70
71 if (pthread_spin_unlock (&lock) != 0)
72 {
73 puts ("1st spin_unlock failed");
74 return 1;
75 }
76
77 void *status;
78 if (pthread_join (thr1, &status) != 0)
79 {
80 puts ("1st pthread_join failed");
81 return 1;
82 }
83 if (status != NULL)
84 {
85 puts ("failure in the 1st thread");
86 return 1;
87 }
88 if (pthread_join (thr2, &status) != 0)
89 {
90 puts ("2nd pthread_join failed");
91 return 1;
92 }
93 if (status != NULL)
94 {
95 puts ("failure in the 2nd thread");
96 return 1;
97 }
98
99 if (count != 3)
100 {
101 printf ("count is %d, should be 3\n", count);
102 return 1;
103 }
104 return 0;
105}
106
107#define TEST_FUNCTION do_test ()
108#include "../test-skeleton.c"
109

Warning: That file was not part of the compilation database. It may have many parsing errors.