static int qemu_event_init(void) { int err; int fds[2]; err = pipe(fds); if (err == -1) return -errno; err = fcntl_setfl(fds[0], O_NONBLOCK); if (err < 0) goto fail; err = fcntl_setfl(fds[1], O_NONBLOCK); if (err < 0) goto fail; qemu_set_fd_handler2(fds[0], NULL, qemu_event_read, NULL, (void *)(unsigned long)fds[0]); io_thread_fd = fds[1]; return 0; fail: close(fds[0]); close(fds[1]); return err; }