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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 <optional>
#include "mon/PaxosService.h"
class MonSession;
extern const std::string KV_PREFIX;
class KVMonitor : public PaxosService
{
version_t version = 0;
std::map<std::string,std::optional<ceph::buffer::list>> pending;
bool _have_prefix(const std::string &prefix);
public:
KVMonitor(Monitor &m, Paxos &p, const std::string& service_name);
void init() override;
void get_store_prefixes(std::set<std::string>& s) const override;
bool preprocess_command(MonOpRequestRef op);
bool prepare_command(MonOpRequestRef op);
bool preprocess_query(MonOpRequestRef op) override;
bool prepare_update(MonOpRequestRef op) override;
void create_initial() override;
void update_from_paxos(bool *need_bootstrap) override;
void create_pending() override;
void encode_pending(MonitorDBStore::TransactionRef t) override;
version_t get_trim_to() const override;
void encode_full(MonitorDBStore::TransactionRef t) override { }
void on_active() override;
void tick() override;
int validate_osd_destroy(const int32_t id, const uuid_d& uuid);
void do_osd_destroy(int32_t id, uuid_d& uuid);
int validate_osd_new(
const uuid_d& uuid,
const std::string& dmcrypt_key,
std::stringstream& ss);
void do_osd_new(const uuid_d& uuid, const std::string& dmcrypt_key);
void check_sub(MonSession *s);
void check_sub(Subscription *sub);
void check_all_subs();
bool maybe_send_update(Subscription *sub);
// used by other services to adjust kv content; note that callers MUST ensure that
// propose_pending() is called and a commit is forced to provide atomicity and
// proper subscriber notifications.
void enqueue_set(const std::string& key, bufferlist &v) {
pending[key] = v;
}
void enqueue_rm(const std::string& key) {
pending[key].reset();
}
};
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