config_stale_cleaner.h

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/*
 * Copyright (c) 2016 Juniper Networks, Inc. All rights reserved.
 */
 
#ifndef __AGENT_CONFIG_STALE_CLEANER_H_
#define __AGENT_CONFIG_STALE_CLEANER_H_
 
#include <cmn/agent.h>
#include <boost/function.hpp>
 
// Stale cleaner to audit & delete old configuration, on a new client connect.
// Waits for timeout, before cleaning the old configuration.
class ConfigStaleCleaner {
public:
    static const uint32_t kConfigStaleTimeout = 60 * 1000;
    typedef boost::function<void(uint32_t)> TimerCallback;
 
    ConfigStaleCleaner(Agent *agent, TimerCallback callback);
    void set_callback(TimerCallback callback) { audit_callback_ = callback; }
    virtual ~ConfigStaleCleaner();
    virtual void StartStaleCleanTimer(int32_t version);
    virtual bool StaleEntryTimeout(int32_t version, Timer *timer);
    void set_timeout(uint32_t timeout) { timeout_ = timeout; }
    uint32_t timeout() const { return timeout_; }
    uint32_t TimersCount() const { return running_timer_list_.size(); }
 
protected:
    Agent *agent_;
 
private:
    uint32_t timeout_;
    // list of running audit timers (one per connect)
    std::set<Timer *> running_timer_list_;
    TimerCallback audit_callback_;
    DISALLOW_COPY_AND_ASSIGN(ConfigStaleCleaner);
};
 
class InterfaceConfigStaleCleaner : public ConfigStaleCleaner {
public:
    InterfaceConfigStaleCleaner(Agent *agent);
    virtual ~InterfaceConfigStaleCleaner();
    virtual bool OnInterfaceConfigStaleTimeout(int32_t version);
 
private:
    DISALLOW_COPY_AND_ASSIGN(InterfaceConfigStaleCleaner);
};
 
#endif /* __AGENT_CONFIG_STALE_CLEANER_H_ */