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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 <string>
#include <unordered_map>
#include <map>
#include <typeinfo>
#include <vector>
#include <optional>
#include <seastar/core/future.hh>
#include <seastar/core/future-util.hh>
#include "osd/osd_types.h"
#include "include/uuid.h"
#include "crimson/os/cyanstore/cyan_object.h"
#include "crimson/os/futurized_store.h"
namespace ceph::os {
class Transaction;
}
namespace crimson::os {
class Collection;
class CyanStore final : public FuturizedStore {
constexpr static unsigned MAX_KEYS_PER_OMAP_GET_CALL = 32;
const std::string path;
std::unordered_map<coll_t, boost::intrusive_ptr<Collection>> coll_map;
std::map<coll_t, boost::intrusive_ptr<Collection>> new_coll_map;
uint64_t used_bytes = 0;
uuid_d osd_fsid;
public:
class CyanOmapIterator final : public OmapIterator {
public:
CyanOmapIterator() {}
CyanOmapIterator(ObjectRef obj) : obj(obj) {
iter = obj->omap.begin();
}
seastar::future<> seek_to_first() final;
seastar::future<> upper_bound(const std::string &after) final;
seastar::future<> lower_bound(const std::string &to) final;
bool valid() const final;
seastar::future<> next() final;
std::string key() final {
return iter->first;
}
virtual seastar::future<std::string> tail_key(){
return seastar::make_ready_future<std::string>((++obj->omap.end())->first);
}
virtual ceph::buffer::list value() {
return iter->second;
}
virtual int status() const {
return iter != obj->omap.end() ? 0 : -1;
}
virtual ~CyanOmapIterator() {}
private:
std::map<std::string, bufferlist>::const_iterator iter;
ObjectRef obj;
};
CyanStore(const std::string& path);
~CyanStore() final;
seastar::future<> stop() final {
return seastar::now();
}
seastar::future<> mount() final;
seastar::future<> umount() final;
seastar::future<> mkfs(uuid_d new_osd_fsid) final;
seastar::future<store_statfs_t> stat() const final;
seastar::future<struct stat> stat(
CollectionRef c,
const ghobject_t& oid) final;
read_errorator::future<ceph::bufferlist> read(
CollectionRef c,
const ghobject_t& oid,
uint64_t offset,
size_t len,
uint32_t op_flags = 0) final;
read_errorator::future<ceph::bufferlist> readv(
CollectionRef c,
const ghobject_t& oid,
interval_set<uint64_t>& m,
uint32_t op_flags = 0) final;
get_attr_errorator::future<ceph::bufferptr> get_attr(
CollectionRef c,
const ghobject_t& oid,
std::string_view name) const final;
get_attrs_ertr::future<attrs_t> get_attrs(
CollectionRef c,
const ghobject_t& oid);
read_errorator::future<omap_values_t> omap_get_values(
CollectionRef c,
const ghobject_t& oid,
const omap_keys_t& keys) final;
/// Retrieves paged set of values > start (if present)
read_errorator::future<std::tuple<bool, omap_values_t>> omap_get_values(
CollectionRef c, ///< [in] collection
const ghobject_t &oid, ///< [in] oid
const std::optional<std::string> &start ///< [in] start, empty for begin
) final; ///< @return <done, values> values.empty() iff done
seastar::future<std::tuple<std::vector<ghobject_t>, ghobject_t>> list_objects(
CollectionRef c,
const ghobject_t& start,
const ghobject_t& end,
uint64_t limit) const final;
read_errorator::future<ceph::bufferlist> omap_get_header(
CollectionRef c,
const ghobject_t& oid) final;
seastar::future<CollectionRef> create_new_collection(const coll_t& cid) final;
seastar::future<CollectionRef> open_collection(const coll_t& cid) final;
seastar::future<std::vector<coll_t>> list_collections() final;
seastar::future<> do_transaction(CollectionRef ch,
ceph::os::Transaction&& txn) final;
seastar::future<> write_meta(const std::string& key,
const std::string& value) final;
seastar::future<std::tuple<int, std::string>>
read_meta(const std::string& key) final;
uuid_d get_fsid() const final;
unsigned get_max_attr_name_length() const final;
seastar::future<OmapIteratorRef> get_omap_iterator(
CollectionRef c,
const ghobject_t& oid);
seastar::future<std::map<uint64_t, uint64_t>> fiemap(CollectionRef c,
const ghobject_t& oid,
uint64_t off,
uint64_t len);
private:
int _remove(const coll_t& cid, const ghobject_t& oid);
int _touch(const coll_t& cid, const ghobject_t& oid);
int _write(const coll_t& cid, const ghobject_t& oid,
uint64_t offset, size_t len, const ceph::bufferlist& bl,
uint32_t fadvise_flags);
int _zero(const coll_t& cid, const ghobject_t& oid,
uint64_t offset, size_t len);
int _omap_clear(
const coll_t& cid,
const ghobject_t& oid);
int _omap_set_values(
const coll_t& cid,
const ghobject_t& oid,
std::map<std::string, ceph::bufferlist> &&aset);
int _omap_set_header(
const coll_t& cid,
const ghobject_t& oid,
const ceph::bufferlist &header);
int _omap_rmkeys(
const coll_t& cid,
const ghobject_t& oid,
const omap_keys_t& aset);
int _omap_rmkeyrange(
const coll_t& cid,
const ghobject_t& oid,
const std::string &first,
const std::string &last);
int _truncate(const coll_t& cid, const ghobject_t& oid, uint64_t size);
int _setattrs(const coll_t& cid, const ghobject_t& oid,
std::map<std::string,bufferptr>& aset);
int _rm_attr(const coll_t& cid, const ghobject_t& oid,
string_view name);
int _create_collection(const coll_t& cid, int bits);
boost::intrusive_ptr<Collection> _get_collection(const coll_t& cid);
};
}
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