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[chore] various federatingdb tweaks (#4178)

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after seeing a potential reported federating worker lockup i decided to start digging into the federatingdb code. this PR encompasses:
- removes one of our last unused interface types `federatingdb.DB{}`, replacing it with a struct type `*federatingdb.DB{}`
- in `transport.dereferenceLocal()` differentiates between an unsupported lookup type and ErrNoEntries to reduce unnecessary calls, and reduce potential lockups that may occur while trying to call our own endpoints that then call `federatingdb.Lock()`
- removes a bunch of the locks on follow state changes since the DB already synchronizes that
- removes the unnecessary `pub.Clock{}` struct field and type passed to the transport controller

frankly it would be great if we could remove the locking in `federatingdb.Lock()` and instead handle it ourselves as it gets very confusing trying to figure out what functions will have locks held. but i guess that's one for when we move further away from the go-fed/activity/pub package usage.

Reviewed-on: https://codeberg.org/superseriousbusiness/gotosocial/pulls/4178
Co-authored-by: kim <grufwub@gmail.com>
Co-committed-by: kim <grufwub@gmail.com>
This commit is contained in:
kim 2025-05-15 09:40:48 +00:00 • committed by kim
commit 3cff4b2d7d
31 changed files with 156 additions and 160 deletions
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6
internal/federation/federatingdb/outbox.go
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@ -31,7 +31,7 @@ import (
// The library makes this call only after acquiring a lock first.
//
// Implementation note: we don't (yet) serve outboxes, so just return empty and nil here.
func (f *federatingDB) GetOutbox(ctx context.Context, outboxIRI *url.URL) (inbox vocab.ActivityStreamsOrderedCollectionPage, err error) {
func (f *DB) GetOutbox(ctx context.Context, outboxIRI *url.URL) (inbox vocab.ActivityStreamsOrderedCollectionPage, err error) {
return streams.NewActivityStreamsOrderedCollectionPage(), nil
}
@ -42,7 +42,7 @@ func (f *federatingDB) GetOutbox(ctx context.Context, outboxIRI *url.URL) (inbox
// The library makes this call only after acquiring a lock first.
//
// Implementation note: we don't allow outbox setting so just return nil here.
func (f *federatingDB) SetOutbox(ctx context.Context, outbox vocab.ActivityStreamsOrderedCollectionPage) error {
func (f *DB) SetOutbox(ctx context.Context, outbox vocab.ActivityStreamsOrderedCollectionPage) error {
return nil
}
@ -50,7 +50,7 @@ func (f *federatingDB) SetOutbox(ctx context.Context, outbox vocab.ActivityStrea
// actor's inbox IRI.
//
// The library makes this call only after acquiring a lock first.
func (f *federatingDB) OutboxForInbox(ctx context.Context, inboxIRI *url.URL) (outboxIRI *url.URL, err error) {
func (f *DB) OutboxForInbox(ctx context.Context, inboxIRI *url.URL) (outboxIRI *url.URL, err error) {
acct, err := f.state.DB.GetOneAccountByInboxURI(ctx, inboxIRI.String())
if err != nil {
return nil, err