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ircd:Ⓜ️:room::aliases: Add preliminary aliases cache replacement interface.

This commit is contained in:
Jason Volk 2019-03-30 17:04:35 -07:00
parent d17ac6a8bb
commit 8063904c06
3 changed files with 277 additions and 3 deletions

View file

@ -13,11 +13,14 @@
/// Interface to the aliases
///
/// This interface focuses specifically on room aliases. These are aliases contained
/// in a room's state.
/// This interface focuses specifically on room aliases. These are aliases
/// contained in a room's state. There is also an aliases::cache which stores
/// the result of directory lookups as well as the contents found through this
/// interface in order to resolve aliases to room_ids.
///
struct ircd::m::room::aliases
{
struct cache;
using closure_bool = std::function<bool (const alias &)>;
static bool for_each(const m::room &, const string_view &server, const closure_bool &);
@ -35,3 +38,17 @@ struct ircd::m::room::aliases
:room{room}
{}
};
struct ircd::m::room::aliases::cache
{
using closure_bool = std::function<bool (const alias &, const id &)>;
static bool for_each(const string_view &server, const closure_bool &);
static bool for_each(const closure_bool &);
static bool has(const alias &);
static bool get(std::nothrow_t, const alias &, const id::closure &);
static void get(const alias &, const id::closure &);
static id::buf get(const alias &);
static bool set(const alias &, const id &);
static bool del(const alias &);
};

View file

@ -2438,6 +2438,109 @@ ircd::m::room::aliases::for_each(const m::room &room,
return call(room, server, closure);
}
//
// room::aliases::cache
//
bool
ircd::m::room::aliases::cache::del(const alias &a)
{
using prototype = bool (const alias &);
static mods::import<prototype> call
{
"m_room_aliases", "ircd::m::room::aliases::cache::del"
};
return call(a);
}
bool
ircd::m::room::aliases::cache::set(const alias &a,
const id &i)
{
using prototype = bool (const alias &, const id &);
static mods::import<prototype> call
{
"m_room_aliases", "ircd::m::room::aliases::cache::set"
};
return call(a, i);
}
ircd::m::room::id::buf
ircd::m::room::aliases::cache::get(const alias &a)
{
id::buf ret;
get(a, [&ret](const id &room_id)
{
ret = room_id;
});
return ret;
}
void
ircd::m::room::aliases::cache::get(const alias &a,
const id::closure &c)
{
if(!get(std::nothrow, a, c))
throw m::NOT_FOUND
{
"Cannot find room_id for %s",
string_view{a}
};
}
bool
ircd::m::room::aliases::cache::get(std::nothrow_t,
const alias &a,
const id::closure &c)
{
using prototype = bool (std::nothrow_t, const alias &, const id::closure &);
static mods::import<prototype> call
{
"m_room_aliases", "ircd::m::room::aliases::cache::get"
};
return call(std::nothrow, a, c);
}
bool
ircd::m::room::aliases::cache::has(const alias &a)
{
using prototype = bool (const alias &);
static mods::import<prototype> call
{
"m_room_aliases", "ircd::m::room::aliases::cache::has"
};
return call(a);
}
bool
ircd::m::room::aliases::cache::for_each(const closure_bool &c)
{
return for_each(string_view{}, c);
}
bool
ircd::m::room::aliases::cache::for_each(const string_view &s,
const closure_bool &c)
{
using prototype = bool (const string_view &, const closure_bool &);
static mods::import<prototype> call
{
"m_room_aliases", "ircd::m::room::aliases::cache::for_each"
};
return call(s, c);
}
//
// room::power
//

View file

@ -29,7 +29,7 @@ alias_room
};
//
// m::room::aliases impl
// m::room::aliases
//
bool
@ -75,6 +75,160 @@ ircd::m::room::aliases::for_each(const m::room &room,
return ret;
}
//
// m::room::aliases::cache
//
bool
IRCD_MODULE_EXPORT
ircd::m::room::aliases::cache::del(const alias &alias)
{
char swapbuf[m::id::room_alias::buf::SIZE];
const string_view &key
{
alias.swap(swapbuf)
};
const auto &event_idx
{
alias_room.get("ircd.room.alias", key)
};
if(!event_idx)
return false;
const auto event_id
{
m::event_id(event_idx)
};
if(!event_id)
return false;
const auto ret
{
redact(alias_room, m::me.user_id, event_id, "deleted")
};
return true;
}
bool
IRCD_MODULE_EXPORT
ircd::m::room::aliases::cache::set(const alias &alias,
const id &id)
{
char swapbuf[m::id::room_alias::buf::SIZE];
const string_view &key
{
alias.swap(swapbuf)
};
const auto ret
{
send(alias_room, m::me.user_id, "ircd.room.alias", key,
{
{ "room_id", id }
})
};
return true;
}
bool
IRCD_MODULE_EXPORT
ircd::m::room::aliases::cache::get(std::nothrow_t,
const alias &alias,
const id::closure &closure)
{
char swapbuf[m::id::room_alias::buf::SIZE];
const string_view &key
{
alias.swap(swapbuf)
};
const auto &event_idx
{
alias_room.get("ircd.room.alias", key)
};
if(!event_idx)
return false;
bool ret{false};
m::get(std::nothrow, event_idx, "content", [&closure, &ret]
(const json::object &content)
{
const json::string &room_id
{
content.get("room_id")
};
if(!empty(room_id))
{
ret = true;
closure(room_id);
}
});
return ret;
}
bool
IRCD_MODULE_EXPORT
ircd::m::room::aliases::cache::has(const alias &alias)
{
char swapbuf[m::id::room_alias::buf::SIZE];
const string_view &key
{
alias.swap(swapbuf)
};
return alias_room.has("ircd.room.alias", key);
}
bool
IRCD_MODULE_EXPORT
ircd::m::room::aliases::cache::for_each(const string_view &server,
const closure_bool &closure)
{
const m::room::state state
{
alias_room
};
bool ret{true};
const m::room::state::closure_bool reclosure{[&server, &closure, &ret]
(const string_view &type, const string_view &state_key, const m::event::idx &event_idx)
{
thread_local char swapbuf[m::id::room_alias::buf::SIZE];
const alias &alias
{
m::id::unswap(state_key, swapbuf)
};
if(server && alias.host() != server)
return false;
m::get(std::nothrow, event_idx, "content", [&closure, &ret, &alias]
(const json::object &content)
{
const json::string &room_id
{
content.get("room_id")
};
if(!empty(room_id))
ret = closure(alias, room_id);
});
return ret;
}};
state.for_each("ircd.room.alias", server, reclosure);
return ret;
}
//
// hook handlers
//