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Add read and write methods for treecache

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mcrakhman 2022-08-10 12:53:15 +02:00 • committed by Mikhail Iudin
parent 588bab92a0
commit 3eedbf4188
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4 changed files with 25 additions and 8 deletions
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2
service/api/service.go
View file

@ -79,7 +79,7 @@ func (s *service) treeDump(w http.ResponseWriter, req *http.Request) {
dump string
err error
)
err = s.treeCache.Do(context.Background(), treeId, func(tree acltree.ACLTree) error {
err = s.treeCache.DoWrite(context.Background(), treeId, func(tree acltree.ACLTree) error {
dump, err = tree.DebugDump()
if err != nil {
return err

2
service/sync/document/service.go
View file

@ -71,7 +71,7 @@ func (s *service) UpdateDocument(ctx context.Context, id, text string) (err erro
log.With(zap.String("id", id), zap.String("text", text)).
Debug("updating document")
err = s.treeCache.Do(ctx, id, func(tree acltree.ACLTree) error {
err = s.treeCache.DoWrite(ctx, id, func(tree acltree.ACLTree) error {
ch, err = tree.AddContent(ctx, func(builder acltree.ChangeBuilder) error {
builder.AddChangeContent(
&testchangepb.PlainTextChangeData{

6
service/sync/requesthandler/requesthandler.go
View file

@ -79,7 +79,7 @@ func (r *requestHandler) HandleHeadUpdate(ctx context.Context, senderId string,
log.With(zap.String("peerId", senderId), zap.String("treeId", update.TreeId)).
Debug("processing head update")
err = r.treeCache.Do(ctx, update.TreeId, func(tree acltree.ACLTree) error {
err = r.treeCache.DoWrite(ctx, update.TreeId, func(tree acltree.ACLTree) error {
// TODO: check if we already have those changes
result, err = tree.AddRawChanges(ctx, update.Changes...)
if err != nil {
@ -133,7 +133,7 @@ func (r *requestHandler) HandleFullSyncRequest(ctx context.Context, senderId str
log.With(zap.String("peerId", senderId), zap.String("treeId", request.TreeId)).
Debug("processing full sync request")
err = r.treeCache.Do(ctx, request.TreeId, func(tree acltree.ACLTree) error {
err = r.treeCache.DoWrite(ctx, request.TreeId, func(tree acltree.ACLTree) error {
// TODO: check if we already have those changes
// if we have non-empty request
if len(request.Heads) != 0 {
@ -177,7 +177,7 @@ func (r *requestHandler) HandleFullSyncResponse(ctx context.Context, senderId st
log.With(zap.String("peerId", senderId), zap.String("treeId", response.TreeId)).
Debug("processing full sync response")
err = r.treeCache.Do(ctx, response.TreeId, func(tree acltree.ACLTree) error {
err = r.treeCache.DoWrite(ctx, response.TreeId, func(tree acltree.ACLTree) error {
// TODO: check if we already have those changes
result, err = tree.AddRawChanges(ctx, response.Changes...)
if err != nil {

23
service/treecache/service.go
View file

@ -22,7 +22,8 @@ type ChangeBuildFunc = func(builder acltree.ChangeBuilder) error
var log = logger.NewNamed("treecache")
type Service interface {
Do(ctx context.Context, treeId string, f ACLTreeFunc) error
DoWrite(ctx context.Context, treeId string, f ACLTreeFunc) error
DoRead(ctx context.Context, treeId string, f ACLTreeFunc) error
Add(ctx context.Context, treeId string, header *treepb.TreeHeader, changes []*aclpb.RawChange, f ACLTreeFunc) error
Create(ctx context.Context, build ChangeBuildFunc, f ACLTreeFunc) error
}
@ -49,10 +50,10 @@ func (s *service) Create(ctx context.Context, build ChangeBuildFunc, f ACLTreeFu
return err
}
return s.Do(ctx, id, f)
return s.DoWrite(ctx, id, f)
}
func (s *service) Do(ctx context.Context, treeId string, f ACLTreeFunc) error {
func (s *service) DoWrite(ctx context.Context, treeId string, f ACLTreeFunc) error {
log.
With(zap.String("treeId", treeId)).
Debug("requesting tree from cache to perform operation")
@ -68,6 +69,22 @@ func (s *service) Do(ctx context.Context, treeId string, f ACLTreeFunc) error {
return f(tree.(acltree.ACLTree))
}
func (s *service) DoRead(ctx context.Context, treeId string, f ACLTreeFunc) error {
log.
With(zap.String("treeId", treeId)).
Debug("requesting tree from cache to perform operation")
tree, err := s.cache.Get(ctx, treeId)
defer s.cache.Release(treeId)
if err != nil {
return err
}
aclTree := tree.(acltree.ACLTree)
aclTree.RLock()
defer aclTree.RUnlock()
return f(tree.(acltree.ACLTree))
}
func (s *service) Add(ctx context.Context, treeId string, header *treepb.TreeHeader, changes []*aclpb.RawChange, f ACLTreeFunc) error {
log.
With(zap.String("treeId", treeId), zap.Int("len(changes)", len(changes))).