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ircd:Ⓜ️:vm: Add more options for fine-grained hook call control during eval.

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This commit is contained in:
Jason Volk 2018-10-11 01:18:21 -07:00
parent 11818f6c3e
commit f216f60583
2 changed files with 23 additions and 6 deletions
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8
include/ircd/m/vm.h
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@ -103,7 +103,13 @@ struct ircd::m::vm::opts
/// Make writes to database
bool write {true};
/// Apply effects of the eval
/// Make fetches or false to bypass fetch stage.
bool fetch {true};
/// Call eval hooks or false to bypass this stage.
bool eval {true};
/// Apply effects of this event or false to bypass this stage.
bool effects {true};
/// Broadcast to clients/servers. When true, individual notify options

21
modules/vm.cc
View file

@ -596,7 +596,9 @@ enum ircd::m::vm::fault
ircd::m::vm::_eval_edu(eval &eval,
const event &event)
{
eval_hook(event, eval);
if(eval.opts->eval)
eval_hook(event, eval);
return fault::ACCEPT;
}
@ -625,7 +627,13 @@ ircd::m::vm::_eval_pdu(eval &eval,
at<"type"_>(event)
};
if(!opts.replays && exists(event_id)) //TODO: exclusivity
const bool already_exists
{
exists(event_id)
};
//TODO: ABA
if(already_exists && !opts.replays)
throw error
{
fault::EXISTS, "Event has already been evaluated."
@ -646,13 +654,16 @@ ircd::m::vm::_eval_pdu(eval &eval,
};
// Obtain sequence number here
eval.sequence = ++vm::current_sequence;
if(opts.write)
eval.sequence = ++vm::current_sequence;
// Fetch dependencies
fetch_hook(event, eval);
if(opts.fetch)
fetch_hook(event, eval);
// Evaluation by module hooks
eval_hook(event, eval);
if(opts.eval)
eval_hook(event, eval);
if(!opts.write)
return fault::ACCEPT;