0674e87831
sendFrame() implemented in LOOLWebSocket is thread safe, and also deals with large messages - sends the "nextmessage: size=..." frame before the actual large frame. The problem this is attempting to solve was that when sending a large frame, it was split to multiple packets. During that, another frame was sent from a different thread; which lead to confusion, and the resulting frame was corrupted (because it ended up composed from unrelated packets). Change-Id: Ie85952e431b1cad2fdc6e3c64df8a444ea0ae971
158 lines
3.7 KiB
C++
158 lines
3.7 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4; fill-column: 100 -*- */
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/*
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* This file is part of the LibreOffice project.
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/.
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*/
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#ifndef INCLUDED_ADMIN_HPP
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#define INCLUDED_ADMIN_HPP
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#include <mutex>
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#include <Poco/Net/HTTPRequest.h>
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#include <Poco/Net/HTTPRequestHandler.h>
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#include <Poco/Net/HTTPServer.h>
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#include <Poco/Runnable.h>
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#include <Poco/Types.h>
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#include <Poco/Util/Timer.h>
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#include <Poco/Util/TimerTask.h>
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#include "AdminModel.hpp"
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#include "Log.hpp"
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#include <LOOLWebSocket.hpp>
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class Admin;
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/// Admin requests over HTTP(S) handler.
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class AdminRequestHandler : public Poco::Net::HTTPRequestHandler
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{
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public:
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AdminRequestHandler(Admin* adminManager);
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void handleRequest(Poco::Net::HTTPServerRequest& request, Poco::Net::HTTPServerResponse& response) override;
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private:
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void handleWSRequests(Poco::Net::HTTPServerRequest& request, Poco::Net::HTTPServerResponse& response, int nSessionId);
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void sendTextFrame(const std::string& message);
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bool adminCommandHandler(const std::vector<char>& payload);
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private:
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Admin* _admin;
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std::shared_ptr<LOOLWebSocket> _adminWs;
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int _sessionId;
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bool _isAuthenticated;
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};
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/// An admin command processor.
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class Admin
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{
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public:
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virtual ~Admin();
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static Admin& instance()
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{
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static Admin admin;
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return admin;
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}
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unsigned getTotalMemoryUsage(AdminModel&);
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/// Update the Admin Model.
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void update(const std::string& message);
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/// Calls with same pid will increment view count, if pid already exists
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void addDoc(const std::string& docKey, Poco::Process::PID pid, const std::string& filename, const std::string& sessionId);
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/// Decrement view count till becomes zero after which doc is removed
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void rmDoc(const std::string& docKey, const std::string& sessionId);
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/// Remove the document with all views. Used on termination or catastrophic failure.
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void rmDoc(const std::string& docKey);
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void setForKitPid(const int forKitPid) { _forKitPid = forKitPid; }
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/// Callers must ensure that modelMutex is acquired
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AdminModel& getModel();
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unsigned getMemStatsInterval();
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unsigned getCpuStatsInterval();
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void rescheduleMemTimer(unsigned interval);
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void rescheduleCpuTimer(unsigned interval);
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static AdminRequestHandler* createRequestHandler()
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{
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return new AdminRequestHandler(&instance());
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}
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std::unique_lock<std::mutex> getLock() { return std::unique_lock<std::mutex>(_modelMutex); }
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private:
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Admin();
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private:
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AdminModel _model;
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std::mutex _modelMutex;
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int _forKitPid;
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Poco::Util::Timer _memStatsTimer;
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Poco::Util::TimerTask::Ptr _memStatsTask;
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unsigned _memStatsTaskInterval = 5000;
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Poco::Util::Timer _cpuStatsTimer;
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Poco::Util::TimerTask::Ptr _cpuStatsTask;
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unsigned _cpuStatsTaskInterval = 5000;
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};
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/// Memory statistics.
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class MemoryStats : public Poco::Util::TimerTask
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{
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public:
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MemoryStats(Admin* admin)
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: _admin(admin),
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_lastTotalMemory(0)
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{
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Log::debug("Memory stat ctor");
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}
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~MemoryStats()
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{
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Log::debug("Memory stat dtor");
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}
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void run() override;
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private:
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Admin* _admin;
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long _lastTotalMemory;
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};
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/// CPU statistics.
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class CpuStats : public Poco::Util::TimerTask
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{
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public:
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CpuStats(Admin* /*admin*/)
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{
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Log::debug("Cpu stat ctor");
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}
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~CpuStats()
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{
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Log::debug("Cpu stat dtor");
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}
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void run() override;
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private:
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};
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#endif
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/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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