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ircd:Ⓜ️ Add room state types iteration.

This commit is contained in:
Jason Volk 2018-08-21 08:37:06 -07:00
parent 7fb2a825a1
commit 3a4817354e
2 changed files with 76 additions and 0 deletions

View file

@ -238,6 +238,7 @@ struct ircd::m::room::state
struct opts;
using keys = std::function<void (const string_view &)>;
using types = std::function<bool (const string_view &)>;
using keys_bool = std::function<bool (const string_view &)>;
room::id room_id;
@ -249,6 +250,7 @@ struct ircd::m::room::state
bool present() const;
// Iterate the state; for_each protocol
bool for_each(const types &) const;
void for_each(const string_view &type, const keys &) const;
void for_each(const string_view &type, const event::closure_idx &) const;
void for_each(const string_view &type, const event::id::closure &) const;
@ -258,6 +260,7 @@ struct ircd::m::room::state
void for_each(const event::closure &) const;
// Iterate the state; test protocol
bool test(const types &) const;
bool test(const string_view &type, const string_view &lower_bound, const event::closure_idx_bool &view) const;
bool test(const string_view &type, const string_view &lower_bound, const event::id::closure_bool &view) const;
bool test(const string_view &type, const string_view &lower_bound, const event::closure_bool &view) const;

View file

@ -1174,6 +1174,17 @@ const
return false;
}
bool
ircd::m::room::state::test(const types &closure)
const
{
return !for_each(types{[&closure]
(const string_view &type)
{
return !closure(type);
}});
}
void
ircd::m::room::state::for_each(const event::closure &closure)
const
@ -1322,6 +1333,68 @@ const
}
}
bool
ircd::m::room::state::for_each(const types &closure)
const
{
string_view last;
char lastbuf[256]; //TODO: type maxlen
if(!present())
{
m::state::for_each(root_id, [&closure, &last, &lastbuf]
(const json::array &key, const string_view &)
{
assert(size(key) >= 2);
const auto type
{
unquote(key.at(0))
};
if(type == last)
return true;
last = strlcpy(lastbuf, type);
return closure(type);
});
return true;
}
char keybuf[dbs::ROOM_STATE_KEY_MAX_SIZE];
const auto &key
{
dbs::room_state_key(keybuf, room_id, string_view{})
};
db::gopts opts
{
this->fopts? this->fopts->gopts : db::gopts{}
};
auto &column{dbs::room_state};
for(auto it{column.begin(key, opts)}; bool(it); ++it)
{
const auto part
{
dbs::room_state_key(it->first)
};
const auto &type
{
std::get<0>(part)
};
if(type == last)
continue;
last = strlcpy(lastbuf, type);
if(!closure(type))
return false;
}
return true;
}
bool
ircd::m::room::state::present()
const