Migrating language server from Websockets to raw TCP
(cherry picked from commit 24b27043fe)
This commit is contained in:
of9
Rémi Verschelde
parent
f3d2c672e9
commit
511105be67
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@ -32,32 +32,107 @@
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#include "core/io/json.h"
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#include "core/os/copymem.h"
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#include "core/project_settings.h"
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#include "editor/editor_log.h"
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#include "editor/editor_node.h"
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GDScriptLanguageProtocol *GDScriptLanguageProtocol::singleton = NULL;
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void GDScriptLanguageProtocol::on_data_received(int p_id) {
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lastest_client_id = p_id;
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Ref<WebSocketPeer> peer = server->get_peer(p_id);
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PoolByteArray data;
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if (OK == peer->get_packet_buffer(data)) {
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String message;
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message.parse_utf8((const char *)data.read().ptr(), data.size());
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if (message.begins_with("Content-Length:")) return;
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String output = process_message(message);
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if (!output.empty()) {
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CharString charstr = output.utf8();
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peer->put_packet((const uint8_t *)charstr.ptr(), charstr.length());
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Error GDScriptLanguageProtocol::LSPeer::handle_data() {
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int read = 0;
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// Read headers
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if (!has_header) {
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while (true) {
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if (req_pos >= LSP_MAX_BUFFER_SIZE) {
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req_pos = 0;
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ERR_FAIL_COND_V_MSG(true, ERR_OUT_OF_MEMORY, "Response header too big");
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}
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Error err = connection->get_partial_data(&req_buf[req_pos], 1, read);
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if (err != OK)
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return FAILED;
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else if (read != 1) // Busy, wait until next poll
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return ERR_BUSY;
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char *r = (char *)req_buf;
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int l = req_pos;
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// End of headers
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if (l > 3 && r[l] == '\n' && r[l - 1] == '\r' && r[l - 2] == '\n' && r[l - 3] == '\r') {
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r[l - 3] = '\0'; // Null terminate to read string
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String header;
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header.parse_utf8(r);
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content_length = header.substr(16).to_int();
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has_header = true;
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req_pos = 0;
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break;
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}
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req_pos++;
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}
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}
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if (has_header) {
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while (req_pos < content_length) {
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if (req_pos >= LSP_MAX_BUFFER_SIZE) {
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req_pos = 0;
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has_header = false;
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ERR_FAIL_COND_V_MSG(req_pos >= LSP_MAX_BUFFER_SIZE, ERR_OUT_OF_MEMORY, "Response content too big");
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}
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Error err = connection->get_partial_data(&req_buf[req_pos], 1, read);
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if (err != OK)
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return FAILED;
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else if (read != 1)
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return ERR_BUSY;
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req_pos++;
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}
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// Parse data
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String msg;
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msg.parse_utf8((const char *)req_buf, req_pos);
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// Reset to read again
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req_pos = 0;
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has_header = false;
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// Response
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String output = GDScriptLanguageProtocol::get_singleton()->process_message(msg);
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if (!output.empty()) {
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res_queue.push_back(output.utf8());
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}
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}
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return OK;
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}
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void GDScriptLanguageProtocol::on_client_connected(int p_id, const String &p_protocal) {
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clients.set(p_id, server->get_peer(p_id));
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Error GDScriptLanguageProtocol::LSPeer::send_data() {
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int sent = 0;
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if (!res_queue.empty()) {
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CharString c_res = res_queue[0];
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if (res_sent < c_res.size()) {
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Error err = connection->put_partial_data((const uint8_t *)c_res.get_data() + res_sent, c_res.size() - res_sent - 1, sent);
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if (err != OK) {
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return err;
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}
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res_sent += sent;
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}
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// Response sent
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if (res_sent >= c_res.size() - 1) {
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res_sent = 0;
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res_queue.remove(0);
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}
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}
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return OK;
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}
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void GDScriptLanguageProtocol::on_client_disconnected(int p_id, bool p_was_clean_close) {
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clients.erase(p_id);
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Error GDScriptLanguageProtocol::on_client_connected() {
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Ref<StreamPeerTCP> tcp_peer = server->take_connection();
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ERR_FAIL_COND_V_MSG(clients.size() >= LSP_MAX_CLIENTS, FAILED, "Max client limits reached");
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Ref<LSPeer> peer = new LSPeer;
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peer->connection = tcp_peer;
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clients.set(next_client_id, peer);
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next_client_id++;
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EditorNode::get_log()->add_message("Connection Taken", EditorLog::MSG_TYPE_EDITOR);
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return OK;
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}
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void GDScriptLanguageProtocol::on_client_disconnected(int p_client_id) {
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clients.erase(p_client_id);
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EditorNode::get_log()->add_message("Disconnected", EditorLog::MSG_TYPE_EDITOR);
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}
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String GDScriptLanguageProtocol::process_message(const String &p_text) {
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@ -83,11 +158,9 @@ String GDScriptLanguageProtocol::format_output(const String &p_text) {
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void GDScriptLanguageProtocol::_bind_methods() {
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ClassDB::bind_method(D_METHOD("initialize", "params"), &GDScriptLanguageProtocol::initialize);
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ClassDB::bind_method(D_METHOD("initialized", "params"), &GDScriptLanguageProtocol::initialized);
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ClassDB::bind_method(D_METHOD("on_data_received"), &GDScriptLanguageProtocol::on_data_received);
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ClassDB::bind_method(D_METHOD("on_client_connected"), &GDScriptLanguageProtocol::on_client_connected);
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ClassDB::bind_method(D_METHOD("on_client_disconnected"), &GDScriptLanguageProtocol::on_client_disconnected);
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ClassDB::bind_method(D_METHOD("notify_all_clients", "p_method", "p_params"), &GDScriptLanguageProtocol::notify_all_clients, DEFVAL(Variant()));
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ClassDB::bind_method(D_METHOD("notify_client", "p_method", "p_params", "p_client"), &GDScriptLanguageProtocol::notify_client, DEFVAL(Variant()), DEFVAL(-1));
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ClassDB::bind_method(D_METHOD("notify_client", "p_method", "p_params"), &GDScriptLanguageProtocol::notify_client, DEFVAL(Variant()), DEFVAL(-1));
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ClassDB::bind_method(D_METHOD("is_smart_resolve_enabled"), &GDScriptLanguageProtocol::is_smart_resolve_enabled);
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ClassDB::bind_method(D_METHOD("get_text_document"), &GDScriptLanguageProtocol::get_text_document);
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ClassDB::bind_method(D_METHOD("get_workspace"), &GDScriptLanguageProtocol::get_workspace);
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@ -116,11 +189,12 @@ Dictionary GDScriptLanguageProtocol::initialize(const Dictionary &p_params) {
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Dictionary params;
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params["path"] = workspace->root;
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Dictionary request = make_notification("gdscrip_client/changeWorkspace", params);
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if (Ref<WebSocketPeer> *peer = clients.getptr(lastest_client_id)) {
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Ref<LSPeer> peer = clients.get(latest_client_id);
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if (peer != NULL) {
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String msg = JSON::print(request);
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msg = format_output(msg);
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CharString charstr = msg.utf8();
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(*peer)->put_packet((const uint8_t *)charstr.ptr(), charstr.length());
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(*peer)->res_queue.push_back(msg.utf8());
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}
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}
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@ -153,61 +227,59 @@ void GDScriptLanguageProtocol::initialized(const Variant &p_params) {
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}
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void GDScriptLanguageProtocol::poll() {
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server->poll();
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if (server->is_connection_available()) {
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on_client_connected();
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}
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const int *id = NULL;
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while ((id = clients.next(id))) {
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Ref<LSPeer> peer = clients.get(*id);
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StreamPeerTCP::Status status = peer->connection->get_status();
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if (status == StreamPeerTCP::STATUS_NONE || status == StreamPeerTCP::STATUS_ERROR) {
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on_client_disconnected(*id);
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id = NULL;
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} else {
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if (peer->connection->get_available_bytes() > 0) {
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latest_client_id = *id;
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Error err = peer->handle_data();
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if (err != OK && err != ERR_BUSY) {
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on_client_disconnected(*id);
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id = NULL;
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}
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}
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Error err = peer->send_data();
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if (err != OK && err != ERR_BUSY) {
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on_client_disconnected(*id);
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id = NULL;
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}
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}
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}
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}
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Error GDScriptLanguageProtocol::start(int p_port, const IP_Address &p_bind_ip) {
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if (server == NULL) {
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server = dynamic_cast<WebSocketServer *>(ClassDB::instance("WebSocketServer"));
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ERR_FAIL_COND_V(!server, FAILED);
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server->set_buffers(8192, 1024, 8192, 1024); // 8mb should be way more than enough
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server->connect("data_received", this, "on_data_received");
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server->connect("client_connected", this, "on_client_connected");
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server->connect("client_disconnected", this, "on_client_disconnected");
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}
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server->set_bind_ip(p_bind_ip);
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return server->listen(p_port);
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return server->listen(p_port, p_bind_ip);
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}
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void GDScriptLanguageProtocol::stop() {
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const int *ptr = clients.next(NULL);
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while (ptr) {
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clients.get(*ptr)->close();
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ptr = clients.next(ptr);
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const int *id = NULL;
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while ((id = clients.next(id))) {
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Ref<LSPeer> peer = clients.get(*id);
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peer->connection->disconnect_from_host();
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}
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server->stop();
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clients.clear();
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}
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void GDScriptLanguageProtocol::notify_all_clients(const String &p_method, const Variant &p_params) {
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Dictionary message = make_notification(p_method, p_params);
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String msg = JSON::print(message);
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msg = format_output(msg);
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CharString charstr = msg.utf8();
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const int *p_id = clients.next(NULL);
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while (p_id != NULL) {
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Ref<WebSocketPeer> peer = clients.get(*p_id);
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(*peer)->put_packet((const uint8_t *)charstr.ptr(), charstr.length());
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p_id = clients.next(p_id);
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void GDScriptLanguageProtocol::notify_client(const String &p_method, const Variant &p_params, int p_client_id) {
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if (p_client_id == -1) {
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p_client_id = latest_client_id;
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}
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}
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void GDScriptLanguageProtocol::notify_client(const String &p_method, const Variant &p_params, int p_client) {
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if (p_client == -1) {
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p_client = lastest_client_id;
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}
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Ref<WebSocketPeer> *peer = clients.getptr(p_client);
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Ref<LSPeer> peer = clients.get(p_client_id);
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ERR_FAIL_COND(peer == NULL);
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Dictionary message = make_notification(p_method, p_params);
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String msg = JSON::print(message);
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msg = format_output(msg);
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CharString charstr = msg.utf8();
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(*peer)->put_packet((const uint8_t *)charstr.ptr(), charstr.length());
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peer->res_queue.push_back(msg.utf8());
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}
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bool GDScriptLanguageProtocol::is_smart_resolve_enabled() const {
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@ -219,7 +291,7 @@ bool GDScriptLanguageProtocol::is_goto_native_symbols_enabled() const {
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}
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GDScriptLanguageProtocol::GDScriptLanguageProtocol() {
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server = NULL;
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server.instance();
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singleton = this;
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_initialized = false;
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workspace.instance();
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@ -228,9 +300,6 @@ GDScriptLanguageProtocol::GDScriptLanguageProtocol() {
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set_scope("completionItem", text_document.ptr());
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set_scope("workspace", workspace.ptr());
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workspace->root = ProjectSettings::get_singleton()->get_resource_path();
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}
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GDScriptLanguageProtocol::~GDScriptLanguageProtocol() {
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memdelete(server);
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server = NULL;
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latest_client_id = 0;
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next_client_id = 0;
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}
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@ -31,16 +31,36 @@
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#ifndef GDSCRIPT_PROTOCAL_SERVER_H
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#define GDSCRIPT_PROTOCAL_SERVER_H
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#include "core/io/stream_peer.h"
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#include "core/io/stream_peer_tcp.h"
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#include "core/io/tcp_server.h"
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#include "gdscript_text_document.h"
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#include "gdscript_workspace.h"
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#include "lsp.hpp"
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#include "modules/jsonrpc/jsonrpc.h"
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#include "modules/websocket/websocket_peer.h"
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#include "modules/websocket/websocket_server.h"
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#define LSP_MAX_BUFFER_SIZE 4194304
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#define LSP_MAX_CLIENTS 8
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class GDScriptLanguageProtocol : public JSONRPC {
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GDCLASS(GDScriptLanguageProtocol, JSONRPC)
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private:
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struct LSPeer : Reference {
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Ref<StreamPeerTCP> connection;
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uint8_t req_buf[LSP_MAX_BUFFER_SIZE];
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int req_pos = 0;
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bool has_header = false;
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bool has_content = false;
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int content_length = 0;
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Vector<CharString> res_queue;
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int res_sent = 0;
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Error handle_data();
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Error send_data();
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};
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enum LSPErrorCode {
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RequestCancelled = -32800,
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ContentModified = -32801,
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@ -48,16 +68,16 @@ class GDScriptLanguageProtocol : public JSONRPC {
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static GDScriptLanguageProtocol *singleton;
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HashMap<int, Ref<WebSocketPeer> > clients;
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WebSocketServer *server;
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int lastest_client_id;
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HashMap<int, Ref<LSPeer> > clients;
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Ref<TCP_Server> server;
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int latest_client_id;
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int next_client_id;
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Ref<GDScriptTextDocument> text_document;
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Ref<GDScriptWorkspace> workspace;
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void on_data_received(int p_id);
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void on_client_connected(int p_id, const String &p_protocal);
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void on_client_disconnected(int p_id, bool p_was_clean_close);
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Error on_client_connected();
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void on_client_disconnected(int p_client_id);
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String process_message(const String &p_text);
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String format_output(const String &p_text);
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@ -80,14 +100,12 @@ public:
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Error start(int p_port, const IP_Address &p_bind_ip);
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void stop();
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void notify_all_clients(const String &p_method, const Variant &p_params = Variant());
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void notify_client(const String &p_method, const Variant &p_params = Variant(), int p_client = -1);
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void notify_client(const String &p_method, const Variant &p_params = Variant(), int p_client_id = -1);
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bool is_smart_resolve_enabled() const;
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bool is_goto_native_symbols_enabled() const;
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GDScriptLanguageProtocol();
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~GDScriptLanguageProtocol();
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};
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#endif
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