MirrorHub/construct
0
0
Fork 0
mirror of https://github.com/matrix-construct/construct synced 2024-11-25 16:22:35 +01:00
Code Issues Releases Wiki Activity

ircd:Ⓜ️:dbs: Add missing event refs comparator: minor cleanup.

Browse source
This commit is contained in:
Jason Volk 2019-02-06 21:26:57 -08:00
parent 93fb468ba2
commit 8eb68c0e2e
2 changed files with 57 additions and 20 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

1
include/ircd/m/dbs.h
View file

@ -188,6 +188,7 @@ namespace ircd::m::dbs::desc
extern conf::item<size_t> events__event_refs__cache_comp__size;
extern conf::item<size_t> events__event_refs__bloom__bits;
extern const db::prefix_transform events__event_refs__pfx;
extern const db::comparator events__event_refs__cmp;
extern const db::descriptor events__event_refs;
// room head mapping sequence

76
ircd/m_dbs.cc
View file

@ -1025,25 +1025,6 @@ ircd::m::dbs::desc::events__event_refs__bloom__bits
{ "default", 0L },
};
const ircd::db::prefix_transform
ircd::m::dbs::desc::events__event_refs__pfx
{
"_event_refs",
[](const string_view &key)
{
return size(key) >= sizeof(event::idx) * 2;
},
[](const string_view &key)
{
assert(size(key) >= sizeof(event::idx));
return string_view
{
data(key), data(key) + sizeof(event::idx)
};
}
};
ircd::string_view
ircd::m::dbs::event_refs_key(const mutable_buffer &out,
const event::idx &tgt,
@ -1077,6 +1058,61 @@ ircd::m::dbs::event_refs_key(const string_view &amalgam)
};
}
const ircd::db::prefix_transform
ircd::m::dbs::desc::events__event_refs__pfx
{
"_event_refs",
[](const string_view &key)
{
return size(key) >= sizeof(event::idx) * 2;
},
[](const string_view &key)
{
assert(size(key) >= sizeof(event::idx));
return string_view
{
data(key), data(key) + sizeof(event::idx)
};
}
};
const ircd::db::comparator
ircd::m::dbs::desc::events__event_refs__cmp
{
"_event_refs",
// less
[](const string_view &a, const string_view &b)
{
static const size_t half(sizeof(event::idx));
static const size_t full(half * 2);
assert(size(a) >= half);
assert(size(b) >= half);
const event::idx *const key[2]
{
reinterpret_cast<const event::idx *>(data(a)),
reinterpret_cast<const event::idx *>(data(b)),
};
return
key[0][0] < key[1][0]? true:
key[0][0] > key[1][0]? false:
size(a) < size(b)? true:
size(a) > size(b)? false:
size(a) == half? false:
key[0][1] < key[1][1]? true:
false;
},
// equal
[](const string_view &a, const string_view &b)
{
return size(a) == size(b) && memcmp(data(a), data(b), size(a)) == 0;
}
};
const ircd::db::descriptor
ircd::m::dbs::desc::events__event_refs
{
@ -1111,7 +1147,7 @@ ircd::m::dbs::desc::events__event_refs
{},
// comparator
{},
events__event_refs__cmp,
// prefix transform
events__event_refs__pfx,