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Code Issues Releases Wiki Activity

ircd:Ⓜ️:dbs: Fix the _room_state_space comparator.

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This commit is contained in:
Jason Volk 2019-06-15 15:20:32 -07:00
parent 493bd85c11
commit bb36a2c398
1 changed files with 33 additions and 5 deletions
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38
ircd/m_dbs.cc
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@ -3235,10 +3235,38 @@ ircd::m::dbs::desc::events__room_state_space__cmp
if(empty(post[1]))
return false;
// Perform standard comparison over the typed tuple.
const auto _a(room_state_space_key(post[0]));
const auto _b(room_state_space_key(post[1]));
return _a < _b;
// Decompose the postfix of the key for granular sorting
const room_state_space_key_parts k[2]
{
room_state_space_key(post[0]),
room_state_space_key(post[1])
};
// type
if(std::get<0>(k[0]) < std::get<0>(k[1]))
return true;
else if(std::get<0>(k[0]) > std::get<0>(k[1]))
return false;
// state_key
if(std::get<1>(k[0]) < std::get<1>(k[1]))
return true;
else if(std::get<1>(k[0]) > std::get<1>(k[1]))
return false;
// depth (ORDER IS DESCENDING!)
if(std::get<2>(k[0]) > std::get<2>(k[1]))
return true;
else if(std::get<2>(k[0]) < std::get<2>(k[1]))
return false;
// event_idx (ORDER IS DESCENDING!)
if(std::get<3>(k[0]) > std::get<3>(k[1]))
return true;
else if(std::get<3>(k[0]) < std::get<3>(k[1]))
return false;
return false;
},
// equal
@ -3268,7 +3296,7 @@ ircd::m::dbs::desc::events__room_state_space
{},
// comparator
{},
events__room_state_space__cmp,
// prefix transform
events__room_state_space__pfx,