28     if (events & POLLIN) printf("POLLIN ");  in print_events()
29     if (events & POLLPRI) printf("POLLPRI ");  in print_events()
30     if (events & POLLOUT) printf("POLLOUT ");  in print_events()
31     if (events & POLLERR) printf("POLLERR ");  in print_events()
32     if (events & POLLHUP) printf("POLLHUP ");  in print_events()
33     if (events & POLLNVAL) printf("POLLNVAL ");  in print_events()
34     printf("\n");  in print_events()
39     printf("%d: socketpair()\n", gettid());  in _socketpair()
41     printf("%d: socketpair() = %d\n", gettid(), ret);  in _socketpair()
42     if (ret) printf("\terr %d (%s)\n", errno, strerror(errno));  in _socketpair()
48     printf("%d: close(%d)\n", gettid(), fd);  in _close()
50     printf("%d: close(%d) = %d\n", gettid(), fd, ret);  in _close()
51     if (ret) printf("\terr %d (%s)\n", errno, strerror(errno));  in _close()
58     printf("%d: poll()\n", gettid());  in _poll()
60     printf("%d: poll() = %d\n", gettid(), ret);  in _poll()
61     if (ret < 0) printf("\terr %d (%s)\n", errno, strerror(errno));  in _poll()
65                 printf("\tfd %d ", ufds[i].fd); print_events(ufds[i].revents);  in _poll()
75     printf("%d: write(%d)\n", gettid(), fd);  in _write()
77     printf("%d: write(%d) = %d\n", gettid(), fd, ret);  in _write()
78     if (ret < 0) printf("\terr %d (%s)\n", errno, strerror(errno));  in _write()
87     printf("%d: read(%d)\n", gettid(), fd);  in _read()
89     printf("%d: read(%d) = %d [%d]\n", gettid(), fd, ret, (int)buf);  in _read()
90     if (ret < 0) printf("\terr %d (%s)\n", errno, strerror(errno));  in _read()
98     printf("%d: shutdown(%d)\n", gettid(), fd);  in _shutdown()
100     printf("%d: shutdown(%d) = %d\n", gettid(), fd, ret);  in _shutdown()
101     if (ret < 0) printf("\terr %d (%s)\n", errno, strerror(errno));  in _shutdown()
108     printf("%d: START\n", gettid());  in thread_poll()
112     printf("%d: END\n", gettid());  in thread_poll()
118     printf("%d: START\n", gettid());  in thread_pollin()
122     printf("%d: END\n", gettid());  in thread_pollin()
129     printf("%d: START (delay = %d)\n", gettid(), delay);  in thread_pollin_rand_delay()
134     printf("%d: END\n", gettid());  in thread_pollin_rand_delay()
139     printf("%d: START\n", gettid());  in thread_read()
141     printf("%d: END\n", gettid());  in thread_read()
146     printf("%d: START\n", gettid());  in thread_close()
148     printf("%d: END\n", gettid());  in thread_close()
257             printf("pipe: %s\n", strerror(errno));  in do_pipe_pipe_pipe()
260         printf("%d %d\n", fd[0], fd[1]);  in do_pipe_pipe_pipe()
408     printf("Usage:\n");  in usage()
410         printf("\tpipetest %s\n", function_table[i].name);  in usage()
423             printf("%s\n", function_table[i].name);  in main()