void uv__udp_finish_close(uv_udp_t* handle) {
uv_udp_send_t* req;
QUEUE* q;
assert(!uv__io_active(&handle->io_watcher, UV__POLLIN | UV__POLLOUT));
assert(handle->io_watcher.fd == -1);
while (!QUEUE_EMPTY(&handle->write_queue)) {
q = QUEUE_HEAD(&handle->write_queue);
QUEUE_REMOVE(q);
req = QUEUE_DATA(q, uv_udp_send_t, queue);
req->status = -ECANCELED;
QUEUE_INSERT_TAIL(&handle->write_completed_queue, &req->queue);
}
uv__udp_run_completed(handle);
assert(handle->send_queue_size == 0);
assert(handle->send_queue_count == 0);
/* Now tear down the handle. */
handle->recv_cb = NULL;
handle->alloc_cb = NULL;
/* but _do not_ touch close_cb */
}
void uv__udp_finish_close(uv_udp_t* handle) {
uv_udp_send_t* req;
ngx_queue_t* q;
assert(!uv__io_active(&handle->io_watcher, UV__POLLIN | UV__POLLOUT));
assert(handle->io_watcher.fd == -1);
uv__udp_run_completed(handle);
while (!ngx_queue_empty(&handle->write_queue)) {
q = ngx_queue_head(&handle->write_queue);
ngx_queue_remove(q);
req = ngx_queue_data(q, uv_udp_send_t, queue);
uv__req_unregister(handle->loop, req);
if (req->bufs != req->bufsml)
free(req->bufs);
req->bufs = NULL;
if (req->send_cb) {
uv__set_artificial_error(handle->loop, UV_ECANCELED);
req->send_cb(req, -1);
}
}
/* Now tear down the handle. */
handle->flags = 0;
handle->recv_cb = NULL;
handle->alloc_cb = NULL;
/* but _do not_ touch close_cb */
}
static void uv__udp_sendmsg(uv_loop_t* loop,
uv__io_t* w,
unsigned int revents) {
uv_udp_t* handle;
handle = container_of(w, uv_udp_t, io_watcher);
assert(handle->type == UV_UDP);
assert(revents & UV__POLLOUT);
assert(!ngx_queue_empty(&handle->write_queue)
|| !ngx_queue_empty(&handle->write_completed_queue));
/* Write out pending data first. */
uv__udp_run_pending(handle);
/* Drain 'request completed' queue. */
uv__udp_run_completed(handle);
if (!ngx_queue_empty(&handle->write_completed_queue)) {
/* Schedule completion callbacks. */
uv__io_feed(handle->loop, &handle->io_watcher);
}
else if (ngx_queue_empty(&handle->write_queue)) {
/* Pending queue and completion queue empty, stop watcher. */
uv__io_stop(loop, &handle->io_watcher, UV__POLLOUT);
if (!uv__io_active(&handle->io_watcher, UV__POLLIN))
uv__handle_stop(handle);
}
}
void uv__udp_finish_close(uv_udp_t* handle) {
uv_udp_send_t* req;
ngx_queue_t* q;
assert(!ev_is_active(&handle->write_watcher));
assert(!ev_is_active(&handle->read_watcher));
assert(handle->fd == -1);
uv__udp_run_completed(handle);
while (!ngx_queue_empty(&handle->write_queue)) {
q = ngx_queue_head(&handle->write_queue);
ngx_queue_remove(q);
req = ngx_queue_data(q, uv_udp_send_t, queue);
if (req->send_cb) {
/* FIXME proper error code like UV_EABORTED */
uv__set_artificial_error(handle->loop, UV_EINTR);
req->send_cb(req, -1);
}
}
/* Now tear down the handle. */
handle->flags = 0;
handle->recv_cb = NULL;
handle->alloc_cb = NULL;
/* but _do not_ touch close_cb */
}
static void uv__udp_sendmsg(EV_P_ ev_io* w, int revents) {
uv_udp_t* handle;
handle = container_of(w, uv_udp_t, write_watcher);
assert(handle->type == UV_UDP);
assert(revents & EV_WRITE);
assert(!ngx_queue_empty(&handle->write_queue)
|| !ngx_queue_empty(&handle->write_completed_queue));
/* Write out pending data first. */
uv__udp_run_pending(handle);
/* Drain 'request completed' queue. */
uv__udp_run_completed(handle);
if (!ngx_queue_empty(&handle->write_completed_queue)) {
/* Schedule completion callbacks. */
ev_feed_event(handle->loop->ev, &handle->write_watcher, EV_WRITE);
}
else if (ngx_queue_empty(&handle->write_queue)) {
/* Pending queue and completion queue empty, stop watcher. */
uv__udp_stop_write_watcher(handle);
}
}
void uv__udp_finish_close(uv_udp_t* handle) {
uv_udp_send_t* req;
QUEUE* q;
assert(!uv__io_active(&handle->io_watcher, UV__POLLIN | UV__POLLOUT));
assert(handle->io_watcher.fd == -1);
uv__udp_run_completed(handle);
while (!QUEUE_EMPTY(&handle->write_queue)) {
q = QUEUE_HEAD(&handle->write_queue);
QUEUE_REMOVE(q);
req = QUEUE_DATA(q, uv_udp_send_t, queue);
uv__req_unregister(handle->loop, req);
if (req->bufs != req->bufsml)
free(req->bufs);
req->bufs = NULL;
if (req->send_cb != NULL)
req->send_cb(req, -ECANCELED);
}
/* Now tear down the handle. */
handle->recv_cb = NULL;
handle->alloc_cb = NULL;
/* but _do not_ touch close_cb */
}
static void uv__udp_io(uv_loop_t* loop, uv__io_t* w, unsigned int revents) {
uv_udp_t* handle;
handle = container_of(w, uv_udp_t, io_watcher);
assert(handle->type == UV_UDP);
if (revents & UV__POLLIN)
uv__udp_recvmsg(handle);
if (revents & UV__POLLOUT) {
uv__udp_sendmsg(handle);
uv__udp_run_completed(handle);
}
}
static void uv__udp_sendmsg(uv_udp_t* handle) {
assert(!ngx_queue_empty(&handle->write_queue)
|| !ngx_queue_empty(&handle->write_completed_queue));
/* Write out pending data first. */
uv__udp_run_pending(handle);
/* Drain 'request completed' queue. */
uv__udp_run_completed(handle);
if (!ngx_queue_empty(&handle->write_completed_queue)) {
/* Schedule completion callbacks. */
ev_feed_event(handle->loop->ev, &handle->write_watcher, EV_WRITE);
}
else if (ngx_queue_empty(&handle->write_queue)) {
/* Pending queue and completion queue empty, stop watcher. */
uv__udp_watcher_stop(handle, &handle->write_watcher);
}
}