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ircd:Ⓜ️:room: Conditional reuse of keys for_each path.

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This commit is contained in:
Jason Volk 2018-10-23 14:25:14 -07:00
parent 16ac997220
commit c9426a3616
1 changed files with 25 additions and 49 deletions
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74
ircd/m/room.cc
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@ -1297,49 +1297,6 @@ const
return true;
}
bool
ircd::m::room::state::for_each(const string_view &type,
const string_view &state_key_lb,
const keys_bool &closure)
const
{
if(!present())
return !m::state::test(root_id, type, state_key_lb, [&closure]
(const json::array &key, const string_view &event_id)
{
char buf[dbs::ROOM_STATE_KEY_MAX_SIZE];
return !closure(m::state::unmake_key(buf, key));
});
char keybuf[dbs::ROOM_STATE_KEY_MAX_SIZE];
const auto &key
{
dbs::room_state_key(keybuf, room_id, type, state_key_lb)
};
db::gopts opts
{
this->fopts? this->fopts->gopts : db::gopts{}
};
if(!opts.readahead)
opts.readahead = 0_KiB;
auto &column{dbs::room_state};
for(auto it{column.begin(key, opts)}; bool(it); ++it)
{
const auto key(dbs::room_state_key(it->first));
if(std::get<0>(key) == type)
{
if(!closure(std::get<1>(key)))
return false;
}
else break;
}
return true;
}
void
ircd::m::room::state::for_each(const string_view &type,
const keys &closure)
@ -1357,19 +1314,38 @@ bool
ircd::m::room::state::for_each(const string_view &type,
const keys_bool &closure)
const
{
return for_each(type, string_view{}, closure);
}
bool
ircd::m::room::state::for_each(const string_view &type,
const string_view &state_key_lb,
const keys_bool &closure)
const
{
if(!present())
return !m::state::test(root_id, type, [&closure]
{
const auto btree_closure{[&closure]
(const json::array &key, const string_view &event_id)
{
assert(size(key) >= 2);
return !closure(unquote(key.at(1)));
});
}};
// Must be conditional branch; empty state_key is not accepted by func.
return defined(state_key_lb)?
!m::state::test(root_id, type, state_key_lb, btree_closure):
!m::state::test(root_id, type, btree_closure);
}
char keybuf[dbs::ROOM_STATE_KEY_MAX_SIZE];
const auto &key
{
dbs::room_state_key(keybuf, room_id, type)
// Must be conditional branch; empty state_key is not accepted by func.
defined(state_key_lb)?
dbs::room_state_key(keybuf, room_id, type, state_key_lb):
dbs::room_state_key(keybuf, room_id, type)
};
db::gopts opts
@ -1383,14 +1359,14 @@ const
auto &column{dbs::room_state};
for(auto it{column.begin(key, opts)}; bool(it); ++it)
{
const auto part
const auto key
{
dbs::room_state_key(it->first)
};
if(std::get<0>(part) == type)
if(std::get<0>(key) == type)
{
if(!closure(std::get<1>(part)))
if(!closure(std::get<1>(key)))
return false;
}
else break;