1 /* $OpenBSD: cancel2.c,v 1.2 2003/07/31 21:48:04 deraadt Exp $ */ 2 /* PUBLIC DOMAIN <marc@snafu.org> */ 3 4 /* 5 * Check that a thread waiting on a select without timeout can be 6 * cancelled. 7 */ 8 9 #include <sys/types.h> 10 #include <sys/time.h> 11 12 #include <pthread.h> 13 #include <unistd.h> 14 15 #include "test.h" 16 17 static void * 18 select_thread(void *arg) 19 { 20 int read_fd = *(int*) arg; 21 fd_set read_fds; 22 int result; 23 24 FD_ZERO(&read_fds); 25 FD_SET(read_fd, &read_fds); 26 result = select(read_fd + 1, &read_fds, NULL, NULL, NULL); 27 printf("select returned %d\n", result); 28 return 0; 29 } 30 31 int 32 main(int argc, char *argv[]) 33 { 34 pthread_t thread; 35 int pipe_fd[2]; 36 37 CHECKe(pipe(pipe_fd)); 38 CHECKr(pthread_create(&thread, NULL, select_thread, pipe_fd)); 39 sleep(2); 40 CHECKr(pthread_cancel(thread)); 41 CHECKr(pthread_join(thread, NULL)); 42 SUCCEED; 43 } 44