static void read_server_setup_reply_cb(EV_P_ ev_io *w, int revents) {
struct connstate *connstate = (struct connstate *)w->data;
xcb_setup_failed_t setup_failed;
must_read(readall_into(&setup_failed, sizeof(setup_failed), w->fd));
switch (setup_failed.status) {
case 0:
errx(EXIT_FAILURE, "error authenticating at the X11 server");
case 2:
errx(EXIT_FAILURE, "two-factor auth not implemented");
case 1:
must_write(writeall(connstate->clientw->fd, &setup_failed, sizeof(xcb_setup_failed_t)));
const size_t len = (setup_failed.length * 4);
void *buf = smalloc(len);
must_read(readall_into(buf, len, w->fd));
must_write(writeall(connstate->clientw->fd, buf, len));
free(buf);
ev_set_cb(connstate->clientw, read_client_x11_packet_cb);
ev_set_cb(connstate->serverw, read_server_x11_packet_cb);
ev_io_start(EV_A_ connstate->clientw);
break;
default:
errx(EXIT_FAILURE, "X11 protocol error: expected setup_failed.status in [0..2], got %d", setup_failed.status);
}
}
int fiber_sleep(uint32_t seconds, uint32_t useconds)
{
if(!fiber_loop) {
fiber_do_real_sleep(seconds, useconds);
return FIBER_SUCCESS;
}
//this code should really use ev_timer_init(), but ev_timer_init has compile warnings.
ev_timer timer_event = {};
ev_set_cb(&timer_event, &timer_trigger);
const double sleep_time = seconds + useconds * 0.000001;
timer_event.at = sleep_time;
timer_event.repeat = 0;
fiber_spinlock_lock(&fiber_loop_spinlock);
fiber_manager_t* const manager = fiber_manager_get();
fiber_t* const this_fiber = manager->current_fiber;
timer_event.data = this_fiber;
ev_timer_start(fiber_loop, &timer_event);
this_fiber->state = FIBER_STATE_WAITING;
manager->spinlock_to_unlock = &fiber_loop_spinlock;
fiber_manager_yield(manager);
return FIBER_SUCCESS;
}
int uv_tcp_listen(uv_tcp_t* tcp, int backlog, uv_connection_cb cb) {
int r;
assert(tcp->fd >= 0);
if (tcp->delayed_error) {
uv_err_new((uv_handle_t*)tcp, tcp->delayed_error);
return -1;
}
r = listen(tcp->fd, backlog);
if (r < 0) {
uv_err_new((uv_handle_t*)tcp, errno);
return -1;
}
tcp->connection_cb = cb;
/* Start listening for connections. */
ev_io_set(&tcp->read_watcher, tcp->fd, EV_READ);
ev_set_cb(&tcp->read_watcher, uv__server_io);
ev_io_start(EV_DEFAULT_ &tcp->read_watcher);
return 0;
}
static void uv__udp_stop_watcher(uv_udp_t* handle, ev_io* w) {
if (!ev_is_active(w)) return;
ev_ref(handle->loop->ev);
ev_io_stop(handle->loop->ev, w);
ev_io_set(w, -1, 0);
ev_set_cb(w, NULL);
}
int fiber_wait_for_event(int fd, uint32_t events)
{
ev_io fd_event = {};
int poll_events = 0;
if(events & FIBER_POLL_IN) {
poll_events |= EV_READ;
}
if(events & FIBER_POLL_OUT) {
poll_events |= EV_WRITE;
}
//this code should really use ev_io_init(), but ev_io_init has compile warnings.
ev_set_cb(&fd_event, &fd_ready);
ev_io_set(&fd_event, fd, poll_events);
fiber_spinlock_lock(&fiber_loop_spinlock);
fiber_manager_t* const manager = fiber_manager_get();
manager->event_wait_count += 1;
fiber_t* const this_fiber = manager->current_fiber;
fd_event.data = this_fiber;
ev_io_start(fiber_loop, &fd_event);
this_fiber->state = FIBER_STATE_WAITING;
manager->spinlock_to_unlock = &fiber_loop_spinlock;
fiber_manager_yield(manager);
return FIBER_SUCCESS;
}
static void
send_request(struct ev_loop *loop, domain_t * domain) {
debug("send_request %s, search = %s", domain->domain, search_path[domain->index_search]);
char buf[MAXLINE];
ev_io_set(&domain->io, domain->io.fd, EV_READ);
ev_set_cb(&domain->io, recv_handler);
ev_timer_set(&domain->tw, MAXRECVTIME, 0);
size_t len = snprintf(buf, sizeof (buf), http_get, search_path[domain->index_search], domain->domain); /* this is safe */
if (len == writen(domain->io.fd, buf, len)) {
//bzero(domain->data.buffer, sizeof(domain->data.buffer));
domain->data.len = 0;
ev_io_start(loop, &domain->io);
ev_timer_start(loop, &domain->tw);
} else {
free_domain(domain);
}
}
void li_event_timer_init(liEventLoop *loop, liEventTimer *timer, liEventCallback callback) {
memset(timer, 0, sizeof(*timer));
timer->base.type = LI_EVT_TIMER;
timer->base.keep_loop_alive = 1;
timer->base.callback = callback;
ev_init(&timer->libevmess.w, NULL);
ev_set_cb(&timer->libevmess.timer, event_timer_cb);
if (NULL != loop) li_event_attach(loop, timer);
}
static void uv__udp_start_watcher(uv_udp_t* handle,
ev_io* w,
void (*cb)(EV_P_ ev_io*, int),
int flags) {
if (ev_is_active(w)) return;
ev_set_cb(w, cb);
ev_io_set(w, handle->fd, flags);
ev_io_start(handle->loop->ev, w);
ev_unref(handle->loop->ev);
}
void uv__io_watcher_stop(uv_handle_t* handle, uv_io_t* io, ev_io* w) {
int flags;
assert(w == &io->read_watcher || w == &io->write_watcher);
flags = (w == &io->read_watcher ? EV_READ : EV_WRITE);
ev_io_stop(handle->loop->ev, w);
ev_io_set(w, -1, flags);
ev_set_cb(w, NULL);
w->data = (void*)0xDEADBABE;
}
void li_event_check_init(liEventLoop *loop, liEventCheck *check, liEventCallback callback) {
memset(check, 0, sizeof(*check));
check->base.type = LI_EVT_CHECK;
check->base.keep_loop_alive = 0;
check->base.callback = callback;
ev_init(&check->libevmess.w, NULL);
ev_set_cb(&check->libevmess.check, event_check_cb);
if (NULL != loop) li_event_attach(loop, check);
li_event_start(check);
}
void li_event_prepare_init(liEventLoop *loop, liEventPrepare *prepare, liEventCallback callback) {
memset(prepare, 0, sizeof(*prepare));
prepare->base.type = LI_EVT_PREPARE;
prepare->base.keep_loop_alive = 0;
prepare->base.callback = callback;
ev_init(&prepare->libevmess.w, NULL);
ev_set_cb(&prepare->libevmess.prepare, event_prepare_cb);
if (NULL != loop) li_event_attach(loop, prepare);
li_event_start(prepare);
}
void li_event_async_init(liEventLoop *loop, liEventAsync *async, liEventCallback callback) {
memset(async, 0, sizeof(*async));
async->base.type = LI_EVT_ASYNC;
async->base.keep_loop_alive = 0;
async->base.callback = callback;
ev_init(&async->libevmess.w, NULL);
ev_set_cb(&async->libevmess.async, event_async_cb);
if (NULL != loop) li_event_attach(loop, async);
li_event_start(async);
}
void li_event_signal_init(liEventLoop *loop, liEventSignal *sig, liEventCallback callback, int signum) {
memset(sig, 0, sizeof(*sig));
sig->base.type = LI_EVT_SIGNAL;
sig->base.keep_loop_alive = 0;
sig->base.callback = callback;
ev_init(&sig->libevmess.w, NULL);
ev_signal_set(&sig->libevmess.sig, signum);
ev_set_cb(&sig->libevmess.sig, event_signal_cb);
if (NULL != loop) li_event_attach(loop, sig);
li_event_start(sig);
}
void li_event_child_init(liEventLoop *loop, liEventChild *child, liEventCallback callback, int pid) {
memset(child, 0, sizeof(*child));
child->base.type = LI_EVT_CHILD;
child->base.keep_loop_alive = 1;
child->base.callback = callback;
ev_init(&child->libevmess.w, NULL);
ev_child_set(&child->libevmess.child, pid, 0);
ev_set_cb(&child->libevmess.child, event_child_cb);
if (NULL != loop) li_event_attach(loop, child);
li_event_start(child);
}
void li_event_io_init(liEventLoop *loop, liEventIO *io, liEventCallback callback, int fd, int events) {
memset(io, 0, sizeof(*io));
io->base.type = LI_EVT_IO;
io->base.keep_loop_alive = 1;
io->base.callback = callback;
io->events = events;
ev_init(&io->libevmess.w, NULL);
ev_io_set(&io->libevmess.io, fd, io_events_to_libev(events));
ev_set_cb(&io->libevmess.io, event_io_cb);
if (NULL != loop) li_event_attach(loop, io);
}
static void uv__udp_watcher_start(uv_udp_t* handle, ev_io* w) {
int flags;
assert(w == &handle->read_watcher
|| w == &handle->write_watcher);
flags = (w == &handle->read_watcher ? EV_READ : EV_WRITE);
w->data = handle;
ev_set_cb(w, uv__udp_io);
ev_io_set(w, handle->fd, flags);
ev_io_start(handle->loop->ev, w);
}
void uv__io_watcher_start(
uv_handle_t* handle,
uv_io_t* io,
ev_io* w,
uv_io_cb cb) {
int flags;
assert(w == &io->read_watcher || w == &io->write_watcher);
flags = (w == &io->read_watcher ? EV_READ : EV_WRITE);
w->data = handle;
ev_set_cb(w, cb);
ev_io_set(w, handle->fd, flags);
ev_io_start(handle->loop->ev, w);
}
void uv__udp_watcher_stop(uv_udp_t* handle, ev_io* w) {
int flags;
if (!ev_is_active(w)) {
return;
}
assert(w == &handle->read_watcher
|| w == &handle->write_watcher);
flags = (w == &handle->read_watcher ? EV_READ : EV_WRITE);
ev_ref(handle->loop->ev);
ev_io_stop(handle->loop->ev, w);
ev_io_set(w, -1, flags);
ev_set_cb(w, NULL);
w->data = (void*)0xDEADBABE;
}
static int fdevent_libev_poll(fdevents *ev, int timeout_ms) {
union {
struct ev_watcher w;
struct ev_timer timer;
} timeout_watcher;
if (!timeout_ms) timeout_ms = 1;
ev_init(&timeout_watcher.w, NULL);
ev_set_cb(&timeout_watcher.timer, timeout_watcher_cb);
timeout_watcher.timer.repeat = ((ev_tstamp) timeout_ms)/1000.0;
assert(timeout_watcher.timer.repeat);
ev_timer_again(ev->libev_loop, &timeout_watcher.timer);
ev_loop(ev->libev_loop, EVLOOP_ONESHOT);
ev_timer_stop(ev->libev_loop, &timeout_watcher.timer);
return 0;
}
int uv_tcp_listen(uv_tcp_t* tcp, int backlog, uv_connection_cb cb) {
int r;
if (tcp->delayed_error) {
uv_err_new(tcp->loop, tcp->delayed_error);
return -1;
}
if (tcp->fd < 0) {
if ((tcp->fd = uv__socket(AF_INET, SOCK_STREAM, 0)) == -1) {
uv_err_new(tcp->loop, errno);
return -1;
}
if (uv__stream_open((uv_stream_t*)tcp, tcp->fd, UV_READABLE)) {
uv__close(tcp->fd);
tcp->fd = -1;
return -1;
}
}
assert(tcp->fd >= 0);
r = listen(tcp->fd, backlog);
if (r < 0) {
uv_err_new(tcp->loop, errno);
return -1;
}
tcp->connection_cb = cb;
/* Start listening for connections. */
ev_io_set(&tcp->read_watcher, tcp->fd, EV_READ);
ev_set_cb(&tcp->read_watcher, uv__server_io);
ev_io_start(tcp->loop->ev, &tcp->read_watcher);
return 0;
}
int uv_listen(uv_handle_t* handle, int backlog, uv_accept_cb cb) {
assert(handle->fd >= 0);
if (handle->delayed_error) {
uv_err_new(handle, handle->delayed_error);
return -1;
}
int r = listen(handle->fd, backlog);
if (r < 0) {
uv_err_new(handle, errno);
return -1;
}
handle->accept_cb = cb;
/* Start listening for connections. */
ev_io_set(&handle->read_watcher, handle->fd, EV_READ);
ev_set_cb(&handle->read_watcher, uv__server_io);
ev_io_start(EV_DEFAULT_ &handle->read_watcher);
return 0;
}