109 lines
3.3 KiB
C
109 lines
3.3 KiB
C
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/*
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* libwebsockets - small server side websockets and web server implementation
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*
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* Copyright (C) 2010-2018 Andy Green <andy@warmcat.com>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation:
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* version 2.1 of the License.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
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* MA 02110-1301 USA
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*/
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#include <core/private.h>
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static int
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rops_handle_POLLIN_raw_file(struct lws_context_per_thread *pt, struct lws *wsi,
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struct lws_pollfd *pollfd)
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{
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int n;
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if (pollfd->revents & LWS_POLLOUT) {
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n = lws_callback_as_writeable(wsi);
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if (lws_change_pollfd(wsi, LWS_POLLOUT, 0)) {
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lwsl_info("failed at set pollfd\n");
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return LWS_HPI_RET_WSI_ALREADY_DIED;
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}
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if (n)
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return LWS_HPI_RET_PLEASE_CLOSE_ME;
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}
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if (pollfd->revents & LWS_POLLIN) {
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if (user_callback_handle_rxflow(wsi->protocol->callback,
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wsi, LWS_CALLBACK_RAW_RX_FILE,
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wsi->user_space, NULL, 0)) {
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lwsl_debug("raw rx callback closed it\n");
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return LWS_HPI_RET_PLEASE_CLOSE_ME;
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}
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}
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if (pollfd->revents & LWS_POLLHUP)
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return LWS_HPI_RET_PLEASE_CLOSE_ME;
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return LWS_HPI_RET_HANDLED;
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}
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#if !defined(LWS_NO_SERVER)
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static int
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rops_adoption_bind_raw_file(struct lws *wsi, int type, const char *vh_prot_name)
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{
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/* no socket or http: it can only be a raw file */
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if ((type & LWS_ADOPT_HTTP) || (type & LWS_ADOPT_SOCKET) ||
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(type & _LWS_ADOPT_FINISH))
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return 0; /* no match */
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lws_role_transition(wsi, 0, LRS_ESTABLISHED, &role_ops_raw_file);
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if (!vh_prot_name)
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wsi->protocol = &wsi->vhost->protocols[
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wsi->vhost->default_protocol_index];
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return 1; /* bound */
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}
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#endif
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struct lws_role_ops role_ops_raw_file = {
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/* role name */ "raw-file",
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/* alpn id */ NULL,
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/* check_upgrades */ NULL,
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/* init_context */ NULL,
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/* init_vhost */ NULL,
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/* destroy_vhost */ NULL,
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/* periodic_checks */ NULL,
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/* service_flag_pending */ NULL,
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/* handle_POLLIN */ rops_handle_POLLIN_raw_file,
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/* handle_POLLOUT */ NULL,
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/* perform_user_POLLOUT */ NULL,
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/* callback_on_writable */ NULL,
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/* tx_credit */ NULL,
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/* write_role_protocol */ NULL,
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/* encapsulation_parent */ NULL,
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/* alpn_negotiated */ NULL,
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/* close_via_role_protocol */ NULL,
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/* close_role */ NULL,
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/* close_kill_connection */ NULL,
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/* destroy_role */ NULL,
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#if !defined(LWS_NO_SERVER)
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/* adoption_bind */ rops_adoption_bind_raw_file,
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#else
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NULL,
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#endif
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/* client_bind */ NULL,
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/* writeable cb clnt, srv */ { LWS_CALLBACK_RAW_WRITEABLE_FILE, 0 },
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/* close cb clnt, srv */ { LWS_CALLBACK_RAW_CLOSE_FILE, 0 },
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/* protocol_bind cb c, srv */ { LWS_CALLBACK_RAW_FILE_BIND_PROTOCOL,
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LWS_CALLBACK_RAW_FILE_BIND_PROTOCOL },
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/* protocol_unbind cb c, srv */ { LWS_CALLBACK_RAW_FILE_DROP_PROTOCOL,
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LWS_CALLBACK_RAW_FILE_DROP_PROTOCOL },
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/* file_handle */ 1,
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};
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