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crimson: move helper classes down

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so we can use the concept of `IsFullKey` for defining accessors in the
incoming commit.

Signed-off-by: Kefu Chai <tchaikov@gmail.com>
This commit is contained in:
Kefu Chai 2022-08-18 23:40:42 +08:00
parent d143757d24
commit b374301ece
1 changed files with 97 additions and 76 deletions
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173
src/crimson/os/seastore/onode_manager/staged-fltree/stages/key_layout.h
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@ -55,61 +55,6 @@ struct node_offset_packed_t {
node_offset_t value;
} __attribute__((packed));
// TODO: consider alignments
struct shard_pool_t {
auto operator<=>(const shard_pool_t&) const = default;
pool_t pool() const { return _pool; }
template <KeyT KT>
static shard_pool_t from_key(const full_key_t<KT>& key);
shard_t shard;
pool_t _pool;
} __attribute__((packed));
inline std::ostream& operator<<(std::ostream& os, const shard_pool_t& sp) {
return os << (int)sp.shard << "," << sp.pool();
}
// Note: this is the reversed version of the object hash
struct crush_t {
auto operator<=>(const crush_t&) const = default;
template <KeyT KT>
static crush_t from_key(const full_key_t<KT>& key);
crush_hash_t crush;
} __attribute__((packed));
inline std::ostream& operator<<(std::ostream& os, const crush_t& c) {
return os << "0x" << std::hex << c.crush << std::dec;
}
struct shard_pool_crush_t {
auto operator<=>(const shard_pool_crush_t&) const = default;
template <KeyT KT>
static shard_pool_crush_t from_key(const full_key_t<KT>& key);
shard_pool_t shard_pool;
crush_t crush;
} __attribute__((packed));
inline std::ostream& operator<<(std::ostream& os, const shard_pool_crush_t& spc) {
return os << spc.shard_pool << ",0x" << std::hex << spc.crush << std::dec;
}
struct snap_gen_t {
auto operator<=>(const snap_gen_t&) const = default;
template <KeyT KT>
static snap_gen_t from_key(const full_key_t<KT>& key);
snap_t snap;
gen_t gen;
} __attribute__((packed));
inline std::ostream& operator<<(std::ostream& os, const snap_gen_t& sg) {
return os << sg.snap << "," << sg.gen;
}
/**
* string_key_view_t
*
@ -568,6 +513,11 @@ inline std::ostream& operator<<(std::ostream& os, const key_hobj_t& key) {
return key.dump(os);
}
struct shard_pool_t;
struct crush_t;
struct shard_pool_crush_t;
struct snap_gen_t;
/**
* key_view_t
*
@ -579,15 +529,9 @@ class key_view_t {
/**
* common interfaces as a full_key_t
*/
shard_t shard() const {
return shard_pool_packed().shard;
}
pool_t pool() const {
return shard_pool_packed().pool();
}
crush_hash_t crush() const {
return crush_packed().crush;
}
inline shard_t shard() const;
inline pool_t pool() const;
inline crush_hash_t crush() const;
laddr_t get_hint() const {
return get_lba_hint(shard(), pool(), crush());
}
@ -610,12 +554,8 @@ class key_view_t {
ns_oid_view_t::Type dedup_type() const {
return ns_oid_view().type();
}
snap_t snap() const {
return snap_gen_packed().snap;
}
gen_t gen() const {
return snap_gen_packed().gen;
}
inline snap_t snap() const;
inline gen_t gen() const;
/**
* key_view_t specific interfaces
@ -667,12 +607,8 @@ class key_view_t {
assert(!has_crush());
replace(key);
}
void replace(const shard_pool_crush_t& key) { p_shard_pool = &key.shard_pool; }
void set(const shard_pool_crush_t& key) {
set(key.crush);
assert(!has_shard_pool());
replace(key);
}
inline void replace(const shard_pool_crush_t& key);
inline void set(const shard_pool_crush_t& key);
void replace(const ns_oid_view_t& key) { p_ns_oid = key; }
void set(const ns_oid_view_t& key) {
assert(!has_ns_oid());
@ -736,6 +672,91 @@ class key_view_t {
template<typename T>
concept IsFullKey = std::same_as<T, key_hobj_t> || std::same_as<T, key_view_t>;
// TODO: consider alignments
struct shard_pool_t {
auto operator<=>(const shard_pool_t&) const = default;
pool_t pool() const { return _pool; }
template <KeyT KT>
static shard_pool_t from_key(const full_key_t<KT>& key);
shard_t shard;
pool_t _pool;
} __attribute__((packed));
inline std::ostream& operator<<(std::ostream& os, const shard_pool_t& sp) {
return os << (int)sp.shard << "," << sp.pool();
}
// Note: this is the reversed version of the object hash
struct crush_t {
auto operator<=>(const crush_t&) const = default;
template <KeyT KT>
static crush_t from_key(const full_key_t<KT>& key);
crush_hash_t crush;
} __attribute__((packed));
inline std::ostream& operator<<(std::ostream& os, const crush_t& c) {
return os << "0x" << std::hex << c.crush << std::dec;
}
struct shard_pool_crush_t {
auto operator<=>(const shard_pool_crush_t&) const = default;
template <KeyT KT>
static shard_pool_crush_t from_key(const full_key_t<KT>& key);
shard_pool_t shard_pool;
crush_t crush;
} __attribute__((packed));
inline std::ostream& operator<<(std::ostream& os, const shard_pool_crush_t& spc) {
return os << spc.shard_pool << ",0x" << std::hex << spc.crush << std::dec;
}
struct snap_gen_t {
auto operator<=>(const snap_gen_t&) const = default;
template <KeyT KT>
static snap_gen_t from_key(const full_key_t<KT>& key);
snap_t snap;
gen_t gen;
} __attribute__((packed));
inline std::ostream& operator<<(std::ostream& os, const snap_gen_t& sg) {
return os << sg.snap << "," << sg.gen;
}
shard_t key_view_t::shard() const {
return shard_pool_packed().shard;
}
pool_t key_view_t::pool() const {
return shard_pool_packed().pool();
}
crush_hash_t key_view_t::crush() const {
return crush_packed().crush;
}
snap_t key_view_t::snap() const {
return snap_gen_packed().snap;
}
gen_t key_view_t::gen() const {
return snap_gen_packed().gen;
}
void key_view_t::replace(const shard_pool_crush_t& key) {
p_shard_pool = &key.shard_pool;
}
void key_view_t::set(const shard_pool_crush_t& key) {
set(key.crush);
assert(!has_shard_pool());
replace(key);
}
template <IsFullKey Key>
void encode_key(const Key& key, ceph::bufferlist& bl) {
ceph::encode(key.shard(), bl);