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Add SQLite support, fix un-thread-safe DB caches, small performance f… (#172)

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* Add SQLite support, fix un-thread-safe DB caches, small performance fixes

Signed-off-by: kim (grufwub) <grufwub@gmail.com>

* add SQLite licenses to README

Signed-off-by: kim (grufwub) <grufwub@gmail.com>

* appease the linter, and fix my dumbass-ery

Signed-off-by: kim (grufwub) <grufwub@gmail.com>

* make requested changes

Signed-off-by: kim (grufwub) <grufwub@gmail.com>

* add back comment

Signed-off-by: kim (grufwub) <grufwub@gmail.com>
This commit is contained in:
kim 2021-08-29 15:41:41 +01:00 • committed by GitHub
commit ed46224573
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GPG key ID: 4AEE18F83AFDEB23
730 changed files with 2239881 additions and 3669 deletions
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87
internal/db/bundb/mention.go
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@ -21,8 +21,7 @@ package bundb
import (
"context"
"github.com/sirupsen/logrus"
"github.com/superseriousbusiness/gotosocial/internal/cache"
"github.com/ReneKroon/ttlcache"
"github.com/superseriousbusiness/gotosocial/internal/config"
"github.com/superseriousbusiness/gotosocial/internal/db"
"github.com/superseriousbusiness/gotosocial/internal/gtsmodel"
@ -31,38 +30,8 @@ import (
type mentionDB struct {
config *config.Config
conn *bun.DB
log *logrus.Logger
cache cache.Cache
}
func (m *mentionDB) cacheMention(id string, mention *gtsmodel.Mention) {
if m.cache == nil {
m.cache = cache.New()
}
if err := m.cache.Store(id, mention); err != nil {
m.log.Panicf("mentionDB: error storing in cache: %s", err)
}
}
func (m *mentionDB) mentionCached(id string) (*gtsmodel.Mention, bool) {
if m.cache == nil {
m.cache = cache.New()
return nil, false
}
mI, err := m.cache.Fetch(id)
if err != nil || mI == nil {
return nil, false
}
mention, ok := mI.(*gtsmodel.Mention)
if !ok {
m.log.Panicf("mentionDB: cached interface with key %s was not a mention", id)
}
return mention, true
conn *DBConn
cache *ttlcache.Cache
}
func (m *mentionDB) newMentionQ(i interface{}) *bun.SelectQuery {
@ -74,33 +43,57 @@ func (m *mentionDB) newMentionQ(i interface{}) *bun.SelectQuery {
Relation("TargetAccount")
}
func (m *mentionDB) GetMention(ctx context.Context, id string) (*gtsmodel.Mention, db.Error) {
if mention, cached := m.mentionCached(id); cached {
return mention, nil
func (m *mentionDB) getMentionCached(id string) (*gtsmodel.Mention, bool) {
v, ok := m.cache.Get(id)
if !ok {
return nil, false
}
return v.(*gtsmodel.Mention), true
}
func (m *mentionDB) putMentionCache(mention *gtsmodel.Mention) {
m.cache.Set(mention.ID, mention)
}
func (m *mentionDB) getMentionDB(ctx context.Context, id string) (*gtsmodel.Mention, db.Error) {
mention := &gtsmodel.Mention{}
q := m.newMentionQ(mention).
Where("mention.id = ?", id)
err := processErrorResponse(q.Scan(ctx))
if err == nil && mention != nil {
m.cacheMention(id, mention)
err := q.Scan(ctx)
if err != nil {
return nil, m.conn.ProcessError(err)
}
return mention, err
m.putMentionCache(mention)
return mention, nil
}
func (m *mentionDB) GetMention(ctx context.Context, id string) (*gtsmodel.Mention, db.Error) {
if mention, cached := m.getMentionCached(id); cached {
return mention, nil
}
return m.getMentionDB(ctx, id)
}
func (m *mentionDB) GetMentions(ctx context.Context, ids []string) ([]*gtsmodel.Mention, db.Error) {
mentions := []*gtsmodel.Mention{}
mentions := make([]*gtsmodel.Mention, 0, len(ids))
for _, i := range ids {
mention, err := m.GetMention(ctx, i)
if err != nil {
return nil, processErrorResponse(err)
for _, id := range ids {
// Attempt fetch from cache
mention, cached := m.getMentionCached(id)
if cached {
mentions = append(mentions, mention)
}
// Attempt fetch from DB
mention, err := m.getMentionDB(ctx, id)
if err != nil {
return nil, err
}
// Append mention
mentions = append(mentions, mention)
}