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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/create.go
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@ -45,7 +45,7 @@ import (
//
// Under certain conditions and network activities, Create may be called
// multiple times for the same ActivityStreams object.
func (f *federatingDB) Create(ctx context.Context, asType vocab.Type) error {
func (f *DB) Create(ctx context.Context, asType vocab.Type) error {
log.DebugKV(ctx, "create", serialize{asType})
// Cache entry for this activity type's ID for later
@ -126,7 +126,7 @@ func (f *federatingDB) Create(ctx context.Context, asType vocab.Type) error {
// createPollOptionable handles a Create activity for a PollOptionable.
// This function doesn't handle database insertion, only validation checks
// before passing off to a worker for asynchronous processing.
func (f *federatingDB) createPollOptionables(
func (f *DB) createPollOptionables(
ctx context.Context,
receiver *gtsmodel.Account,
requester *gtsmodel.Account,
@ -274,7 +274,7 @@ func (f *federatingDB) createPollOptionables(
// This function won't insert anything in the database yet,
// but will pass the Statusable (if appropriate) through to
// the processor for further asynchronous processing.
func (f *federatingDB) createStatusable(
func (f *DB) createStatusable(
ctx context.Context,
receiver *gtsmodel.Account,
requester *gtsmodel.Account,