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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 <boost/intrusive_ptr.hpp>
#include <boost/smart_ptr/intrusive_ref_counter.hpp>
#include "include/buffer.h"
#include "osd/osd_types.h"
#include "crimson/os/futurized_collection.h"
namespace crimson::os {
class Object;
/**
* a collection also orders transactions
*
* Any transactions queued under a given collection will be applied in
* sequence. Transactions queued under different collections may run
* in parallel.
*
* ObjectStore users may get collection handles with open_collection() (or,
* for bootstrapping a new collection, create_new_collection()).
*/
struct Collection final : public FuturizedCollection {
using ObjectRef = boost::intrusive_ptr<Object>;
int bits = 0;
// always use bufferlist object for testing
bool use_page_set = false;
std::unordered_map<ghobject_t, ObjectRef> object_hash; ///< for lookup
std::map<ghobject_t, ObjectRef> object_map; ///< for iteration
std::map<std::string,bufferptr> xattr;
bool exists = true;
Collection(const coll_t& c);
~Collection() final;
ObjectRef create_object() const;
ObjectRef get_object(ghobject_t oid);
ObjectRef get_or_create_object(ghobject_t oid);
uint64_t used_bytes() const;
void encode(bufferlist& bl) const;
void decode(bufferlist::const_iterator& p);
};
}
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