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// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
// vim: ts=8 sw=2 smarttab
#pragma once
#include <map>
#include <string>
#include "common/ceph_time.h"
#include "include/types.h"
// mon subscriptions
class MonSub
{
public:
// @returns true if there is any "new" subscriptions
bool have_new() const;
auto get_subs() const {
return sub_new;
}
bool need_renew() const;
// change the status of "new" subscriptions to "sent"
void renewed();
// the peer acked the subscription request
void acked(uint32_t interval);
void got(const std::string& what, version_t version);
// revert the status of subscriptions from "sent" to "new"
// @returns true if there is any pending "new" subscriptions
bool reload();
// add a new subscription
bool want(const std::string& what, version_t start, unsigned flags);
// increment the requested subscription start point. If you do increase
// the value, apply the passed-in flags as well; otherwise do nothing.
bool inc_want(const std::string& what, version_t start, unsigned flags);
// cancel a subscription
void unwant(const std::string& what);
private:
// my subs, and current versions
std::map<std::string,ceph_mon_subscribe_item> sub_sent;
// unsent new subs
std::map<std::string,ceph_mon_subscribe_item> sub_new;
using time_point = ceph::coarse_mono_time;
using clock = typename time_point::clock;
time_point renew_sent;
time_point renew_after;
};
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