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Code Issues Releases Wiki Activity

ircd:Ⓜ️:vm: Improve present state txn composition; fix conditions.

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This commit is contained in:
Jason Volk 2020-12-06 15:05:51 -08:00
parent 21dc2dc4f8
commit 1ab61a11d9
1 changed files with 65 additions and 56 deletions
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121
matrix/vm_execute.cc
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@ -1070,6 +1070,12 @@ ircd::m::vm::write_append(eval &eval,
*eval.opts
};
assert(eval.room_id);
const room room
{
eval.room_id
};
if(eval.txn)
eval.txn->clear();
@ -1109,76 +1115,79 @@ ircd::m::vm::write_append(eval &eval,
wopts.appendix[dbs::appendix::ROOM_HEAD] && !dummy_event
);
if(opts.present && json::get<"state_key"_>(event))
const auto state_candidate
{
const room room
opts.present
&& json::get<"state_key"_>(event)
};
const auto state_idx
{
state_candidate?
room.get(std::nothrow, at<"type"_>(event), at<"state_key"_>(event)):
0UL
};
const int64_t state_depth
{
m::get<int64_t>(std::nothrow, state_idx, "depth", 0L)
};
const auto state_present
{
!state_depth || state_depth < json::get<"depth"_>(event)
};
const bool authenticate
{
opts.auth
&& opts.phase[phase::AUTH_PRES]
&& state_present
&& !eval.room_internal
};
const auto &[pass, fail]
{
authenticate?
room::auth::check_present(event):
room::auth::passfail{true, {}}
};
if(state_present && fail)
log::dwarning
{
at<"room_id"_>(event)
log, "%s fails auth for present state of %s :%s",
loghead(eval),
string_view{room.room_id},
what(fail),
};
const room::state state
{
room
};
wopts.appendix.set
(
dbs::appendix::ROOM_STATE,
wopts.appendix[dbs::appendix::ROOM_STATE] && state_present && pass
);
//XXX
const auto pres_idx
{
state.get(std::nothrow, at<"type"_>(event), at<"state_key"_>(event))
};
wopts.appendix.set
(
dbs::appendix::ROOM_JOINED,
wopts.appendix[dbs::appendix::ROOM_JOINED] && state_present && pass
);
//XXX
int64_t pres_depth(0);
const auto fresher
{
!pres_idx ||
m::get<int64_t>(pres_idx, "depth", pres_depth) < json::get<"depth"_>(event)
};
if(fresher)
{
//XXX
const auto &[pass, fail]
{
opts.phase[phase::AUTH_PRES] && !eval.room_internal?
room::auth::check_present(event):
room::auth::passfail{true, {}}
};
if(fail)
log::dwarning
{
log, "%s fails auth for present state of %s :%s",
loghead(eval),
string_view{room.room_id},
what(fail),
};
wopts.appendix.set
(
dbs::appendix::ROOM_STATE,
pass && wopts.appendix[dbs::appendix::ROOM_STATE]
);
wopts.appendix.set
(
dbs::appendix::ROOM_JOINED,
pass && wopts.appendix[dbs::appendix::ROOM_JOINED]
);
}
}
assert(eval.txn);
const size_t wrote
{
dbs::write(*eval.txn, event, wopts)
dbs::write(txn, event, wopts)
};
log::debug
{
log, "%s composed transaction wrote:%zu",
log, "%s composed transaction wrote:%zu state:%b pres:%b prev:%lu @%ld",
loghead(eval),
wrote,
state_candidate,
state_present,
state_idx,
state_depth,
};
}