struct bufferevent *
bufferevent_socket_new(struct event_base *base, evutil_socket_t fd,
int options)
{
struct bufferevent_private *bufev_p;
struct bufferevent *bufev;
#ifdef _WIN32
if (base && event_base_get_iocp_(base))
return bufferevent_async_new_(base, fd, options);
#endif
if ((bufev_p = mm_calloc(1, sizeof(struct bufferevent_private)))== NULL)
return NULL;
if (bufferevent_init_common_(bufev_p, base, &bufferevent_ops_socket,
options) < 0) {
mm_free(bufev_p);
return NULL;
}
bufev = &bufev_p->bev;
evbuffer_set_flags(bufev->output, EVBUFFER_FLAG_DRAINS_TO_FD);
event_assign(&bufev->ev_read, bufev->ev_base, fd,
EV_READ|EV_PERSIST, bufferevent_readcb, bufev);
event_assign(&bufev->ev_write, bufev->ev_base, fd,
EV_WRITE|EV_PERSIST, bufferevent_writecb, bufev);
evbuffer_add_cb(bufev->output, bufferevent_socket_outbuf_cb, bufev);
evbuffer_freeze(bufev->input, 0);
evbuffer_freeze(bufev->output, 1);
return bufev;
}
struct bufferevent *
bufferevent_async_new_(struct event_base *base,
evutil_socket_t fd, int options)
{
struct bufferevent_async *bev_a;
struct bufferevent *bev;
struct event_iocp_port *iocp;
options |= BEV_OPT_THREADSAFE;
if (!(iocp = event_base_get_iocp_(base)))
return NULL;
if (fd >= 0 && event_iocp_port_associate_(iocp, fd, 1)<0) {
int err = GetLastError();
/* We may have alrady associated this fd with a port.
* Let's hope it's this port, and that the error code
* for doing this neer changes. */
if (err != ERROR_INVALID_PARAMETER)
return NULL;
}
if (!(bev_a = mm_calloc(1, sizeof(struct bufferevent_async))))
return NULL;
bev = &bev_a->bev.bev;
if (!(bev->input = evbuffer_overlapped_new_(fd))) {
mm_free(bev_a);
return NULL;
}
if (!(bev->output = evbuffer_overlapped_new_(fd))) {
evbuffer_free(bev->input);
mm_free(bev_a);
return NULL;
}
if (bufferevent_init_common_(&bev_a->bev, base, &bufferevent_ops_async,
options)<0)
goto err;
evbuffer_add_cb(bev->input, be_async_inbuf_callback, bev);
evbuffer_add_cb(bev->output, be_async_outbuf_callback, bev);
event_overlapped_init_(&bev_a->connect_overlapped, connect_complete);
event_overlapped_init_(&bev_a->read_overlapped, read_complete);
event_overlapped_init_(&bev_a->write_overlapped, write_complete);
bev_a->ok = fd >= 0;
if (bev_a->ok)
bufferevent_init_generic_timeout_cbs_(bev);
return bev;
err:
bufferevent_free(&bev_a->bev.bev);
return NULL;
}
