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/**
* @file heartbeats.h
* @brief Classes for heartbeating Backup configuration and status
*
* (c) 2020 by Mega Limited, Auckland, New Zealand
*
* This file is part of the MEGA SDK - Client Access Engine.
*
* Applications using the MEGA API must present a valid application key
* and comply with the the rules set forth in the Terms of Service.
*
* The MEGA SDK is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
*
* @copyright Simplified (2-clause) BSD License.
*
* You should have received a copy of the license along with this
* program.
*/
#pragma once
#include "types.h"
#include <memory>
#include <functional>
#include "mega/command.h"
namespace mega
{
#ifdef ENABLE_SYNC
struct UnifiedSync;
struct Syncs;
/**
* @brief The HeartBeatBackupInfo class
* This class holds the information that will be heartbeated
*/
class HeartBeatBackupInfo
{
bool mModified = false;
public:
HeartBeatBackupInfo();
HeartBeatBackupInfo(HeartBeatBackupInfo&&) = delete;
HeartBeatBackupInfo& operator=(HeartBeatBackupInfo&&) = delete;
virtual ~HeartBeatBackupInfo() = default;
virtual m_time_t lastAction() const;
virtual handle lastItemUpdated() const;
virtual m_time_t lastBeat() const;
virtual void setLastBeat(const m_time_t &lastBeat);
virtual void setLastAction(const m_time_t &lastAction);
virtual void setLastSyncedItem(const handle &lastItemUpdated);
std::atomic<bool> mSending{false};
protected:
handle mLastItemUpdated = UNDEF; // handle of node most recently updated
m_time_t mLastAction = -1; //timestamps of the last action
m_time_t mLastBeat = -1; //timestamps of the last beat
void updateLastActionTime();
friend class BackupMonitor;
};
class HeartBeatSyncInfo : public HeartBeatBackupInfo
{
public:
void updateSPHBStatus(UnifiedSync& us);
using SPHBStatus = CommandBackupPutHeartBeat::SPHBStatus;
SPHBStatus sphbStatus() { return mSPHBStatus; }
SyncTransferCounts mSnapshotTransferCounts;
SyncTransferCounts mResolvedTransferCounts;
private:
SPHBStatus mSPHBStatus = CommandBackupPutHeartBeat::STATE_NOT_INITIALIZED;
};
class BackupInfoSync : public CommandBackupPut::BackupInfo
{
public:
BackupInfoSync(const SyncConfig& config, const string& device, handle drive, CommandBackupPut::SPState calculatedState);
BackupInfoSync(const UnifiedSync& us, bool pauseDown, bool pauseUp);
static BackupType getSyncType(const SyncConfig& config);
static CommandBackupPut::SPState getSyncState (const UnifiedSync &, bool pauseDown, bool pauseUp);
static CommandBackupPut::SPState getSyncState(SyncError error, SyncRunState, bool pauseDown, bool pauseUp);
static CommandBackupPut::SPState getSyncState(const SyncConfig& config, bool pauseDown, bool pauseUp);
static handle getDriveId(const UnifiedSync&);
bool operator==(const BackupInfoSync& o) const;
bool operator!=(const BackupInfoSync& o) const;
private:
static CommandBackupPut::SPState calculatePauseActiveState(bool pauseDown, bool pauseUp);
};
class BackupMonitor
{
public:
explicit BackupMonitor(Syncs&);
void beat(); // produce heartbeats!
void updateOrRegisterSync(UnifiedSync&);
private:
static constexpr int MAX_HEARBEAT_SECS_DELAY = 60*30; // max time to wait before a heartbeat for unchanged backup
Syncs& syncs;
void beatBackupInfo(UnifiedSync& us);
};
#endif
}
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