1 // testing cancellation points
9 #define TESTC(c, m) ( (c) || (t_error(#c " failed (%s, " m ")\n", cdescr), 0) )
10 #define TESTR(f, m) do {int r; \
11 if ((r = (f))) t_error(#f " failed: %s (%s, " m ")\n", strerror(r), cdescr); } while (0)
12 #define TESTE(f, m) do { \
13 if ((f)==-1) t_error(#f " failed: %s (%s, " m ")\n", strerror(errno), cdescr); } while (0)
15 static sem_t sem_seq, sem_test;
19 static const char *cdescr = "global initialization";
21 static void prepare_sem(void *arg)
23 TESTR(sem_init(&sem_test, 0, (long)arg), "creating semaphore");
26 static void cleanup_sem(void *arg)
28 TESTR(sem_destroy(&sem_test), "destroying semaphore");
31 static void execute_sem_wait(void *arg)
33 TESTR(sem_wait(&sem_test), "waiting on semaphore in the canceled thread");
36 static void execute_sem_timedwait(void *arg)
39 clock_gettime(CLOCK_REALTIME, &ts);
41 TESTR(sem_timedwait(&sem_test, &ts), "timed-waiting on semaphore in the canceled thread");
44 static pthread_t td_test;
46 static void *run_test(void *arg)
48 while (sem_wait(&sem_test));
52 static void prepare_thread(void *arg)
55 TESTR(pthread_create(&td_test, 0, run_test, 0), "creating auxiliary thread");
58 static void cleanup_thread(void *arg)
62 TESTR(sem_post(&sem_test), "posting semaphore");
63 TESTR(pthread_join(td_test, &res), "joining auxiliary thread");
64 TESTC(res == 0, "auxiliary thread exit status");
69 static void execute_thread_join(void *arg)
71 TESTR(pthread_join(td_test, 0), "joining in the canceled thread");
75 static void prepare_dummy(void *arg)
79 static void execute_shm_open(void *arg)
82 TESTE(*fd = shm_open("/testshm", O_RDWR|O_CREAT, 0666), "");
85 static void cleanup_shm(void *arg)
89 TESTE(close(*fd), "shm fd");
90 TESTE(shm_unlink("/testshm"), "");
95 void (*prepare)(void *);
96 void (*execute)(void *);
97 void (*cleanup)(void *);
101 {1, prepare_sem, execute_sem_wait, cleanup_sem, 0, "blocking sem_wait"},
102 {1, prepare_sem, execute_sem_wait, cleanup_sem, (void*)1, "non-blocking sem_wait"},
103 {1, prepare_sem, execute_sem_timedwait, cleanup_sem, 0, "blocking sem_timedwait"},
104 {1, prepare_sem, execute_sem_timedwait, cleanup_sem, (void*)1, "non-blocking sem_timedwait"},
105 {1, prepare_thread, execute_thread_join, cleanup_thread, 0, "blocking pthread_join"},
106 {1, prepare_thread, execute_thread_join, cleanup_thread, (void*)1, "non-blocking pthread_join"},
107 {0, prepare_dummy, execute_shm_open, cleanup_shm, &(int){0}, "shm_open"},
109 }, *cur_sc = scenarios;
111 static void *run_execute(void *arg)
113 pthread_setcancelstate(PTHREAD_CANCEL_DISABLE, 0);
114 while (sem_wait(&sem_seq));
115 pthread_setcancelstate(PTHREAD_CANCEL_ENABLE, 0);
117 cur_sc->execute(cur_sc->arg);
124 TESTR(sem_init(&sem_seq, 0, 0), "creating semaphore");
126 for (; cur_sc->prepare; cur_sc++) {
130 cdescr = cur_sc->descr;
131 cur_sc->prepare(cur_sc->arg);
133 TESTR(pthread_create(&td, 0, run_execute, 0), "creating thread to be canceled");
134 TESTR(pthread_cancel(td), "canceling");
135 TESTR(sem_post(&sem_seq), "unblocking canceled thread");
136 TESTR(pthread_join(td, &res), "joining canceled thread");
137 if (cur_sc->want_cancel) {
138 TESTC(res == PTHREAD_CANCELED, "canceled thread exit status")
139 && TESTC(seqno == 1, "seqno");
141 TESTC(res != PTHREAD_CANCELED, "canceled thread exit status")
142 && TESTC(seqno == 2, "seqno");
144 cur_sc->cleanup(cur_sc->arg);