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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_ADMINMODEL_HPP
#define INCLUDED_ADMINMODEL_HPP
#include <memory>
#include <set>
#include <string>
#include <Poco/Process.h>
#include "Log.hpp"
#include <LOOLWebSocket.hpp>
#include "Util.hpp"
/// A client view in Admin controller.
class View
{
public:
View(const std::string& sessionId) :
_sessionId(sessionId),
_start(std::time(nullptr))
{
}
void expire() { _end = std::time(nullptr); }
bool isExpired() const { return _end != 0 && std::time(nullptr) >= _end; }
private:
const std::string _sessionId;
const std::time_t _start;
std::time_t _end = 0;
};
/// A document in Admin controller.
class Document
{
public:
Document(const std::string& docKey,
Poco::Process::PID pid,
const std::string& filename)
: _docKey(docKey),
_pid(pid),
_filename(filename),
_start(std::time(nullptr))
{
}
Poco::Process::PID getPid() const { return _pid; }
std::string getFilename() const { return _filename; }
bool isExpired() const { return _end != 0 && std::time(nullptr) >= _end; }
std::time_t getElapsedTime() const { return std::time(nullptr) - _start; }
void addView(const std::string& sessionId);
int expireView(const std::string& sessionId);
unsigned getActiveViews() const { return _activeViews; }
const std::map<std::string, View>& getViews() const { return _views; }
private:
const std::string _docKey;
const Poco::Process::PID _pid;
/// SessionId mapping to View object
std::map<std::string, View> _views;
/// Total number of active views
unsigned _activeViews = 0;
/// Hosted filename
std::string _filename;
std::time_t _start;
std::time_t _end = 0;
};
/// An Admin session subscriber.
class Subscriber
{
public:
Subscriber(int sessionId, std::shared_ptr<LOOLWebSocket>& ws)
: _sessionId(sessionId),
_ws(ws),
_start(std::time(nullptr))
{
Log::info("Subscriber ctor.");
}
~Subscriber()
{
Log::info("Subscriber dtor.");
}
bool notify(const std::string& message);
bool subscribe(const std::string& command);
void unsubscribe(const std::string& command);
void expire() { _end = std::time(nullptr); }
bool isExpired() const { return _end != 0 && std::time(nullptr) >= _end; }
private:
/// Admin session Id
int _sessionId;
/// LOOLWebSocket to use to send messages to session
std::weak_ptr<LOOLWebSocket> _ws;
std::set<std::string> _subscriptions;
std::time_t _start;
std::time_t _end = 0;
};
/// The Admin controller implementation.
class AdminModel
{
public:
AdminModel()
{
Log::info("AdminModel ctor.");
}
~AdminModel()
{
Log::info("AdminModel dtor.");
}
std::string query(const std::string& command);
/// Returns memory consumed by all active loolkit processes
unsigned getTotalMemoryUsage();
void subscribe(int sessionId, std::shared_ptr<LOOLWebSocket>& ws);
void subscribe(int sessionId, const std::string& command);
void unsubscribe(int sessionId, const std::string& command);
void clearMemStats() { _memStats.clear(); }
void clearCpuStats() { _cpuStats.clear(); }
void addMemStats(unsigned memUsage);
void addCpuStats(unsigned cpuUsage);
void setCpuStatsSize(unsigned size);
void setMemStatsSize(unsigned size);
void notify(const std::string& message);
void addDocument(const std::string& docKey, Poco::Process::PID pid, const std::string& filename, const std::string& sessionId);
void removeDocument(const std::string& docKey, const std::string& sessionId);
void removeDocument(const std::string& docKey);
private:
std::string getMemStats();
std::string getCpuStats();
unsigned getTotalActiveViews();
std::string getDocuments() const;
private:
std::map<int, Subscriber> _subscribers;
std::map<std::string, Document> _documents;
std::list<unsigned> _memStats;
unsigned _memStatsSize = 100;
std::list<unsigned> _cpuStats;
unsigned _cpuStatsSize = 100;
};
#endif
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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