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25 changes: 14 additions & 11 deletions storage/grpc_writer.go
Original file line number Diff line number Diff line change
Expand Up @@ -594,19 +594,22 @@ func (s *gRPCResumableBidiWriteBufferSender) sendBuffer(ctx context.Context, buf
// error may be returned in some cases.
func (w *gRPCWriter) uploadBuffer(ctx context.Context, recvd int, start int64, doneReading bool) (obj *storagepb.Object, err error) {
if w.streamSender == nil {
if w.append {
// Appendable object semantics
w.streamSender, err = w.newGRPCAppendableObjectBufferSender()
} else if doneReading || w.forceOneShot {
// One shot semantics
w.streamSender, err = w.newGRPCOneshotBidiWriteBufferSender()
} else {
ss, sserr := func() (gRPCBidiWriteBufferSender, error) {
if w.append {
// Appendable object semantics
return w.newGRPCAppendableObjectBufferSender()
}
if doneReading || w.forceOneShot {
// One shot semantics
return w.newGRPCOneshotBidiWriteBufferSender()
}
// Resumable write semantics
w.streamSender, err = w.newGRPCResumableBidiWriteBufferSender(ctx)
}
if err != nil {
return
return w.newGRPCResumableBidiWriteBufferSender(ctx)
}()
if sserr != nil {
return nil, sserr
}
w.streamSender = ss
}

data := w.buf[:recvd]
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