mirror of
https://github.com/hrydgard/ppsspp.git
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114 lines
3.9 KiB
C++
114 lines
3.9 KiB
C++
// Copyright (c) 2017- PPSSPP Project.
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, version 2.0 or later versions.
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// This program 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
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// GNU General Public License 2.0 for more details.
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// A copy of the GPL 2.0 should have been included with the program.
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// If not, see http://www.gnu.org/licenses/
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// Official git repository and contact information can be found at
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// https://github.com/hrydgard/ppsspp and http://www.ppsspp.org/.
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#include "Core/Debugger/WebSocket.h"
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#include "Core/Debugger/WebSocket/WebSocketUtils.h"
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// This WebSocket (connected through the same port as disc sharing) allows API/debugger access to PPSSPP.
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// Currently, the only subprotocol "debugger.ppsspp.org" uses a simple JSON based interface.
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//
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// Messages to and from PPSSPP follow the same basic format:
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// { "event": "NAME", ... }
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//
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// And are primarily of these types:
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// * Events from the debugger/client (you) to PPSSPP
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// If there's a response, it will generally use the same name. It may not be immedate - it's an event.
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// * Spontaneous events from PPSSPP
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// Things like logs, breakpoint hits, etc. not directly requested.
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//
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// Otherwise you may see error events which indicate PPSSPP couldn't understand or failed internally:
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// - "event": "error"
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// - "message": A string describing what happened.
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// - "level": Integer severity level. (1 = NOTICE, 2 = ERROR, 3 = WARN, 4 = INFO, 5 = DEBUG, 6 = VERBOSE)
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// - "ticket": Optional, present if in response to an event with a "ticket" field, simply repeats that value.
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#include "Core/Debugger/WebSocket/GameBroadcaster.h"
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#include "Core/Debugger/WebSocket/LogBroadcaster.h"
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#include "Core/Debugger/WebSocket/SteppingBroadcaster.h"
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#include "Core/Debugger/WebSocket/CPUCoreSubscriber.h"
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typedef void *(*SubscriberInit)(DebuggerEventHandlerMap &map);
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typedef void (*Subscribershutdown)(void *p);
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struct SubscriberInfo {
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SubscriberInit init;
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Subscribershutdown shutdown;
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};
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static const std::vector<SubscriberInfo> subscribers({
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{ &WebSocketCPUCoreInit, nullptr },
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});
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void HandleDebuggerRequest(const http::Request &request) {
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net::WebSocketServer *ws = net::WebSocketServer::CreateAsUpgrade(request, "debugger.ppsspp.org");
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if (!ws)
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return;
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LogBroadcaster logger;
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GameBroadcaster game;
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SteppingBroadcaster stepping;
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std::unordered_map<std::string, DebuggerEventHandler> eventHandlers;
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std::vector<void *> subscriberData;
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for (auto info : subscribers) {
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subscriberData.push_back(info.init(eventHandlers));
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}
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ws->SetTextHandler([&](const std::string &t) {
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JsonReader reader(t.c_str(), t.size());
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if (!reader.ok()) {
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ws->Send(DebuggerErrorEvent("Bad message: invalid JSON", LogTypes::LERROR));
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return;
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}
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const JsonGet root = reader.root();
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const char *event = root ? root.getString("event", nullptr) : nullptr;
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if (!event) {
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ws->Send(DebuggerErrorEvent("Bad message: no event property", LogTypes::LERROR, root));
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return;
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}
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DebuggerRequest req(event, ws, root);
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auto eventFunc = eventHandlers.find(event);
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if (eventFunc != eventHandlers.end()) {
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eventFunc->second(req);
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req.Finish();
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} else {
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req.Fail("Bad message: unknown event");
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}
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});
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ws->SetBinaryHandler([&](const std::vector<uint8_t> &d) {
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ws->Send(DebuggerErrorEvent("Bad message", LogTypes::LERROR));
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});
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while (ws->Process(1.0f / 60.0f)) {
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// These send events that aren't just responses to requests.
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logger.Broadcast(ws);
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game.Broadcast(ws);
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stepping.Broadcast(ws);
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}
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for (size_t i = 0; i < subscribers.size(); ++i) {
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if (subscribers[i].shutdown) {
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subscribers[i].shutdown(subscriberData[i]);
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} else {
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assert(!subscriberData[i]);
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}
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}
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delete ws;
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}
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