TEST(sys_select, pselect_smoke) { sigset_t ss; sigemptyset(&ss); sigaddset(&ss, SIGPIPE); fd_set r; FD_ZERO(&r); fd_set w; FD_ZERO(&w); fd_set e; FD_ZERO(&e); FD_SET(STDIN_FILENO, &r); FD_SET(STDOUT_FILENO, &w); FD_SET(STDERR_FILENO, &w); int max = STDERR_FILENO + 1; // Invalid max fd. ASSERT_EQ(-1, pselect(-1, &r, &w, &e, NULL, &ss)); ASSERT_EQ(EINVAL, errno); // If there is data to be read on STDIN, then the number of // fds ready will be 3 instead of 2. Allow this case, but verify // every fd that is set. int num_fds = pselect(max, &r, &w, &e, NULL, &ss); ASSERT_TRUE(num_fds == 2 || num_fds == 3) << "Num fds returned " << num_fds; ASSERT_TRUE(FD_ISSET(STDOUT_FILENO, &w)); ASSERT_TRUE(FD_ISSET(STDERR_FILENO, &w)); if (num_fds == 3) { ASSERT_TRUE(FD_ISSET(STDIN_FILENO, &r)); } // Invalid timeout. timespec tv; tv.tv_sec = -1; tv.tv_nsec = 0; ASSERT_EQ(-1, pselect(max, &r, &w, &e, &tv, &ss)); ASSERT_EQ(EINVAL, errno); // Valid timeout... tv.tv_sec = 1; int pid, fd; DelayedWrite(&pid, &fd); FD_ZERO(&r); FD_SET(fd, &r); ASSERT_EQ(1, pselect(fd+1, &r, NULL, NULL, &tv, NULL)); // Neither tv_sec nor tv_nsec should have been updated. ASSERT_EQ(1, tv.tv_sec); ASSERT_EQ(0, tv.tv_nsec); DelayedWriteCleanup(pid, fd); }
TEST(sys_select, pselect_smoke) { sigset_t ss; sigemptyset(&ss); sigaddset(&ss, SIGPIPE); fd_set r; FD_ZERO(&r); fd_set w; FD_ZERO(&w); fd_set e; FD_ZERO(&e); FD_SET(STDIN_FILENO, &r); FD_SET(STDOUT_FILENO, &w); FD_SET(STDERR_FILENO, &w); int max = STDERR_FILENO + 1; // Invalid max fd. ASSERT_EQ(-1, pselect(-1, &r, &w, &e, NULL, &ss)); ASSERT_EQ(EINVAL, errno); ASSERT_EQ(2, pselect(max, &r, &w, &e, NULL, &ss)); // Invalid timeout. timespec tv; tv.tv_sec = -1; tv.tv_nsec = 0; ASSERT_EQ(-1, pselect(max, &r, &w, &e, &tv, &ss)); ASSERT_EQ(EINVAL, errno); // Valid timeout... tv.tv_sec = 1; int pid, fd; DelayedWrite(&pid, &fd); FD_ZERO(&r); FD_SET(fd, &r); ASSERT_EQ(1, pselect(fd+1, &r, NULL, NULL, &tv, NULL)); // Neither tv_sec nor tv_nsec should have been updated. ASSERT_EQ(1, tv.tv_sec); ASSERT_EQ(0, tv.tv_nsec); DelayedWriteCleanup(pid, fd); }
TEST(sys_select, select_smoke) { fd_set r; FD_ZERO(&r); fd_set w; FD_ZERO(&w); fd_set e; FD_ZERO(&e); FD_SET(STDIN_FILENO, &r); FD_SET(STDOUT_FILENO, &w); FD_SET(STDERR_FILENO, &w); int max = STDERR_FILENO + 1; // Invalid max fd. ASSERT_EQ(-1, select(-1, &r, &w, &e, NULL)); ASSERT_EQ(EINVAL, errno); ASSERT_EQ(2, select(max, &r, &w, &e, NULL)); // Invalid timeout. timeval tv; tv.tv_sec = -1; tv.tv_usec = 0; ASSERT_EQ(-1, select(max, &r, &w, &e, &tv)); ASSERT_EQ(EINVAL, errno); // Valid timeout... tv.tv_sec = 1; int pid, fd; DelayedWrite(&pid, &fd); FD_ZERO(&r); FD_SET(fd, &r); ASSERT_EQ(1, select(fd+1, &r, NULL, NULL, &tv)); // Both tv_sec and tv_nsec should have been updated. ASSERT_EQ(0, tv.tv_sec); ASSERT_NE(0, tv.tv_usec); DelayedWriteCleanup(pid, fd); }