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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 <seastar/core/future.hh>
#include "osd/osd_types.h"
#include "crimson/os/seastore/seastore_types.h"
#include "crimson/os/seastore/transaction_manager.h"
namespace crimson::os::seastore {
struct coll_info_t {
unsigned split_bits;
coll_info_t(unsigned bits)
: split_bits(bits) {}
bool operator==(const coll_info_t &rhs) const {
return split_bits == rhs.split_bits;
}
};
/// Interface for maintaining set of collections
class CollectionManager {
public:
using base_iertr = TransactionManager::read_extent_iertr;
/// Initialize collection manager instance for an empty store
using mkfs_iertr = TransactionManager::alloc_extent_iertr;
using mkfs_ret = mkfs_iertr::future<coll_root_t>;
virtual mkfs_ret mkfs(
Transaction &t) = 0;
/// Create collection
using create_iertr = base_iertr;
using create_ret = create_iertr::future<>;
virtual create_ret create(
coll_root_t &root,
Transaction &t,
coll_t cid,
coll_info_t info
) = 0;
/// List collections with info
using list_iertr = base_iertr;
using list_ret_bare = std::vector<std::pair<coll_t, coll_info_t>>;
using list_ret = list_iertr::future<list_ret_bare>;
virtual list_ret list(
const coll_root_t &root,
Transaction &t) = 0;
/// Remove cid
using remove_iertr = base_iertr;
using remove_ret = remove_iertr::future<>;
virtual remove_ret remove(
const coll_root_t &coll_root,
Transaction &t,
coll_t cid) = 0;
/// Update info for cid
using update_iertr = base_iertr;
using update_ret = base_iertr::future<>;
virtual update_ret update(
const coll_root_t &coll_root,
Transaction &t,
coll_t cid,
coll_info_t info
) = 0;
virtual ~CollectionManager() {}
};
using CollectionManagerRef = std::unique_ptr<CollectionManager>;
namespace collection_manager {
/* creat CollectionMapManager for Collection */
CollectionManagerRef create_coll_manager(
TransactionManager &trans_manager);
}
}
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