gbl08ma.com
A very experimental PLC implementation which uses BFT consensus for decentralization
Remove useless mutex
-29
plc/impl.go
-29
plc/impl.go
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import (
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"context"
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"sync"
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"github.com/bluesky-social/indigo/atproto/syntax"
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"github.com/did-method-plc/go-didplc"
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)
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type plcImpl struct {
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mu sync.Mutex // probably redundant, but let's keep for now
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validator OperationValidator
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}
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···
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}
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func (plc *plcImpl) ValidateOperation(ctx context.Context, readTx transaction.Read, did string, opBytes []byte) error {
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plc.mu.Lock()
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defer plc.mu.Unlock()
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timestamp := syntax.Datetime(readTx.Timestamp().Format(types.ActualAtprotoDatetimeLayout))
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// TODO set true to false only while importing old ops
···
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}
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func (plc *plcImpl) ExecuteOperation(ctx context.Context, tx transaction.Write, did string, opBytes []byte) error {
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plc.mu.Lock()
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defer plc.mu.Unlock()
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timestamp := syntax.Datetime(tx.Timestamp().Format(types.ActualAtprotoDatetimeLayout))
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// TODO set true to false only while importing old ops
···
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return nil
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}
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func (plc *plcImpl) ImportOperationFromAuthoritativeSource(ctx context.Context, tx transaction.Write, newEntry didplc.LogEntry) error {
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plc.mu.Lock()
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defer plc.mu.Unlock()
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newCID := newEntry.CID
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newPrev := newEntry.Operation.AsOperation().PrevCIDStr()
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···
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}
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func (plc *plcImpl) Resolve(ctx context.Context, tx transaction.Read, did string) (didplc.Doc, error) {
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plc.mu.Lock()
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defer plc.mu.Unlock()
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l, _, err := store.Tree.AuditLog(ctx, tx, did, false)
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if err != nil {
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return didplc.Doc{}, stacktrace.Propagate(err, "")
···
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// if missing -> returns ErrDIDNotFound
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// if tombstone -> returns log as normal
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plc.mu.Lock()
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defer plc.mu.Unlock()
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l, _, err := store.Tree.AuditLog(ctx, tx, did, false)
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if err != nil {
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return nil, stacktrace.Propagate(err, "")
···
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// GetPlcAuditLog - /:did/log/audit - full audit log, with nullified
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// if missing -> returns ErrDIDNotFound
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// if tombstone -> returns log as normal
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plc.mu.Lock()
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defer plc.mu.Unlock()
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l, _, err := store.Tree.AuditLog(ctx, tx, did, false)
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if err != nil {
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return nil, stacktrace.Propagate(err, "")
···
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// GetLastOp - /:did/log/last - latest op from audit log which isn't nullified (the latest op is guaranteed not to be nullified)
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// if missing -> returns ErrDIDNotFound
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// if tombstone -> returns tombstone op
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plc.mu.Lock()
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defer plc.mu.Unlock()
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l, _, err := store.Tree.AuditLog(ctx, tx, did, false)
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if err != nil {
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return didplc.OpEnum{}, stacktrace.Propagate(err, "")
···
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// GetPlcData - /:did/data - similar to GetLastOp but applies a transformation on the op which normalizes it into a modern op
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// if missing -> returns ErrDIDNotFound
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// if tombstone -> returns ErrDIDGone
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plc.mu.Lock()
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defer plc.mu.Unlock()
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l, _, err := store.Tree.AuditLog(ctx, tx, did, false)
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if err != nil {
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return didplc.RegularOp{}, stacktrace.Propagate(err, "")
···
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}
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func (plc *plcImpl) Export(ctx context.Context, tx transaction.Read, after uint64, count int) ([]types.SequencedLogEntry, error) {
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plc.mu.Lock()
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defer plc.mu.Unlock()
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entries, err := store.Tree.ExportOperations(ctx, tx, after, count)
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return entries, stacktrace.Propagate(err, "")
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}