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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4; fill-column: 100 -*- */
/*
* This file is part of the LibreOffice project.
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*/
#ifndef INCLUDED_ADMIN_HPP
#define INCLUDED_ADMIN_HPP
#include <mutex>
#include "AdminModel.hpp"
#include "Log.hpp"
#include "net/WebSocketHandler.hpp"
class Admin;
/// Handle admin client's Websocket requests & replies.
class AdminSocketHandler : public WebSocketHandler
{
public:
AdminSocketHandler(Admin* adminManager,
const std::weak_ptr<StreamSocket>& socket,
const Poco::Net::HTTPRequest& request);
/// Handle the initial Admin WS upgrade request.
/// @returns true if we should give this socket to the Admin poll.
static bool handleInitialRequest(const std::weak_ptr<StreamSocket> &socket,
const Poco::Net::HTTPRequest& request);
private:
/// Sends text frames simply to authenticated clients.
void sendTextFrame(const std::string& message);
/// Process incoming websocket messages
void handleMessage(bool fin, WSOpCode code, std::vector<char> &data);
private:
Admin* _admin;
int _sessionId;
bool _isAuthenticated;
};
class MemoryStatsTask;
/// An admin command processor.
class Admin : public SocketPoll
{
Admin();
public:
virtual ~Admin();
static Admin& instance()
{
static Admin admin;
return admin;
}
void start()
{
// FIXME: not if admin console is not enabled ?
startThread();
}
/// Custom poll thread function
void pollingThread() override;
unsigned getTotalMemoryUsage();
/// Update the Admin Model.
void update(const std::string& message);
/// Calls with same pid will increment view count, if pid already exists
void addDoc(const std::string& docKey, Poco::Process::PID pid, const std::string& filename, const std::string& sessionId, const std::string& userName);
/// Decrement view count till becomes zero after which doc is removed
void rmDoc(const std::string& docKey, const std::string& sessionId);
/// Remove the document with all views. Used on termination or catastrophic failure.
void rmDoc(const std::string& docKey);
void setForKitPid(const int forKitPid) { _forKitPid = forKitPid; }
/// Callers must ensure that modelMutex is acquired
AdminModel& getModel();
unsigned getMemStatsInterval();
unsigned getCpuStatsInterval();
void rescheduleMemTimer(unsigned interval);
void rescheduleCpuTimer(unsigned interval);
void updateLastActivityTime(const std::string& docKey);
void updateMemoryDirty(const std::string& docKey, int dirty);
void dumpState(std::ostream& os) override;
private:
/// The model is accessed only during startup & in
/// the Admin Poll thread.
AdminModel _model;
int _forKitPid;
long _lastTotalMemory;
std::atomic<int> _memStatsTaskIntervalMs;
std::atomic<int> _cpuStatsTaskIntervalMs;
};
#endif
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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