mirror of
https://github.com/godotengine/godot
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178 lines
5.2 KiB
C++
178 lines
5.2 KiB
C++
/*************************************************************************/
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/* lws_server.cpp */
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/*************************************************************************/
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/* This file is part of: */
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/* GODOT ENGINE */
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/* https://godotengine.org */
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/*************************************************************************/
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/* Copyright (c) 2007-2018 Juan Linietsky, Ariel Manzur. */
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/* Copyright (c) 2014-2018 Godot Engine contributors (cf. AUTHORS.md) */
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/* */
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/* Permission is hereby granted, free of charge, to any person obtaining */
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/* a copy of this software and associated documentation files (the */
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/* "Software"), to deal in the Software without restriction, including */
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/* without limitation the rights to use, copy, modify, merge, publish, */
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/* distribute, sublicense, and/or sell copies of the Software, and to */
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/* permit persons to whom the Software is furnished to do so, subject to */
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/* the following conditions: */
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/* */
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/* The above copyright notice and this permission notice shall be */
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/* included in all copies or substantial portions of the Software. */
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/* */
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/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
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/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
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/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
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/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
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/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
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/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
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/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
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/*************************************************************************/
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#ifndef JAVASCRIPT_ENABLED
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#include "lws_server.h"
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#include "core/os/os.h"
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Error LWSServer::listen(int p_port, PoolVector<String> p_protocols, bool gd_mp_api) {
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ERR_FAIL_COND_V(context != NULL, FAILED);
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_is_multiplayer = gd_mp_api;
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struct lws_context_creation_info info;
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memset(&info, 0, sizeof info);
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if (p_protocols.size() == 0) // default to binary protocol
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p_protocols.append(String("binary"));
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// Prepare lws protocol structs
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_lws_make_protocols(this, &LWSServer::_lws_gd_callback, p_protocols, &_lws_ref);
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info.port = p_port;
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info.user = _lws_ref;
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info.protocols = _lws_ref->lws_structs;
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info.gid = -1;
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info.uid = -1;
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//info.ws_ping_pong_interval = 5;
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context = lws_create_context(&info);
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if (context == NULL) {
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_lws_free_ref(_lws_ref);
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_lws_ref = NULL;
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ERR_EXPLAIN("Unable to create LWS context");
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ERR_FAIL_V(FAILED);
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}
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return OK;
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}
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bool LWSServer::is_listening() const {
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return context != NULL;
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}
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int LWSServer::_handle_cb(struct lws *wsi, enum lws_callback_reasons reason, void *user, void *in, size_t len) {
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LWSPeer::PeerData *peer_data = (LWSPeer::PeerData *)user;
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switch (reason) {
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case LWS_CALLBACK_HTTP:
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// no http for now
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// closing immediately returning -1;
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return -1;
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case LWS_CALLBACK_FILTER_PROTOCOL_CONNECTION:
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// check header here?
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break;
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case LWS_CALLBACK_ESTABLISHED: {
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int32_t id = _gen_unique_id();
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Ref<LWSPeer> peer = Ref<LWSPeer>(memnew(LWSPeer));
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peer->set_wsi(wsi);
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_peer_map[id] = peer;
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peer_data->peer_id = id;
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peer_data->in_size = 0;
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peer_data->in_count = 0;
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peer_data->out_count = 0;
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peer_data->rbw.resize(16);
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peer_data->rbr.resize(16);
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peer_data->force_close = false;
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_on_connect(id, lws_get_protocol(wsi)->name);
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break;
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}
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case LWS_CALLBACK_CLOSED: {
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if (peer_data == NULL)
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return 0;
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int32_t id = peer_data->peer_id;
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if (_peer_map.has(id)) {
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_peer_map[id]->close();
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_peer_map.erase(id);
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}
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peer_data->in_count = 0;
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peer_data->out_count = 0;
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peer_data->rbr.resize(0);
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peer_data->rbw.resize(0);
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_on_disconnect(id);
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return 0; // we can end here
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}
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case LWS_CALLBACK_RECEIVE: {
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int32_t id = peer_data->peer_id;
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if (_peer_map.has(id)) {
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static_cast<Ref<LWSPeer> >(_peer_map[id])->read_wsi(in, len);
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if (_peer_map[id]->get_available_packet_count() > 0)
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_on_peer_packet(id);
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}
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break;
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}
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case LWS_CALLBACK_SERVER_WRITEABLE: {
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if (peer_data->force_close)
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return -1;
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int id = peer_data->peer_id;
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if (_peer_map.has(id))
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static_cast<Ref<LWSPeer> >(_peer_map[id])->write_wsi();
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break;
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}
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default:
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break;
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}
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return 0;
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}
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void LWSServer::stop() {
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if (context == NULL)
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return;
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_peer_map.clear();
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destroy_context();
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context = NULL;
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}
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bool LWSServer::has_peer(int p_id) const {
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return _peer_map.has(p_id);
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}
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Ref<WebSocketPeer> LWSServer::get_peer(int p_id) const {
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ERR_FAIL_COND_V(!has_peer(p_id), NULL);
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return _peer_map[p_id];
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}
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LWSServer::LWSServer() {
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context = NULL;
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_lws_ref = NULL;
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}
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LWSServer::~LWSServer() {
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invalidate_lws_ref(); // we do not want any more callbacks
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stop();
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}
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#endif // JAVASCRIPT_ENABLED
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