bahman/scylla
1
0
Fork 0
Code Issues Pull Requests Actions 3 Packages Projects Releases Wiki Activity

locator: tablets: Move std::hash definition earlier

Browse Source 
Will be needed in order to define a struct which has
unordered_set<tablet_replica> as a field.
This commit is contained in:
Tomasz Grabiec
2023-07-24 23:42:28 +02:00
parent 889f2ceb1e
commit 18a59ab5ff
1 changed files with 33 additions and 37 deletions
Download Patch File Download Diff File Expand all files Collapse all files

70
locator/tablets.hh
View File

@@ -45,21 +45,6 @@ struct tablet_id {
bool operator<=>(const tablet_id&) const = default;
};
}
namespace std {
template<>
struct hash<locator::tablet_id> {
size_t operator()(const locator::tablet_id& id) const {
return std::hash<size_t>()(id.value());
}
};
}
namespace locator {
/// Identifies tablet (not be confused with tablet replica) in the scope of the whole cluster.
struct global_tablet_id {
table_id table;
@@ -80,6 +65,39 @@ std::ostream& operator<<(std::ostream&, const tablet_replica&);
using tablet_replica_set = utils::small_vector<tablet_replica, 3>;
}
namespace std {
template<>
struct hash<locator::tablet_id> {
size_t operator()(const locator::tablet_id& id) const {
return std::hash<size_t>()(id.value());
}
};
template<>
struct hash<locator::tablet_replica> {
size_t operator()(const locator::tablet_replica& r) const {
return utils::hash_combine(
std::hash<locator::host_id>()(r.host),
std::hash<shard_id>()(r.shard));
}
};
template<>
struct hash<locator::global_tablet_id> {
size_t operator()(const locator::global_tablet_id& id) const {
return utils::hash_combine(
std::hash<table_id>()(id.table),
std::hash<locator::tablet_id>()(id.tablet));
}
};
}
namespace locator {
/// Creates a new replica set with old_replica replaced by new_replica.
/// If there is no old_replica, the set is returned unchanged.
inline
@@ -309,28 +327,6 @@ public:
}
namespace std {
template<>
struct hash<locator::tablet_replica> {
size_t operator()(const locator::tablet_replica& r) const {
return utils::hash_combine(
std::hash<locator::host_id>()(r.host),
std::hash<shard_id>()(r.shard));
}
};
template<>
struct hash<locator::global_tablet_id> {
size_t operator()(const locator::global_tablet_id& id) const {
return utils::hash_combine(
std::hash<table_id>()(id.table),
std::hash<locator::tablet_id>()(id.tablet));
}
};
}
template <>
struct fmt::formatter<locator::tablet_transition_stage> : fmt::formatter<std::string_view> {
auto format(const locator::tablet_transition_stage&, fmt::format_context& ctx) const -> decltype(ctx.out());