}

func wrapSRErr(err error) SRError {
	return SRError{Cause: err, Code: ErrInternalError}
}

// SiteReplicationSys - manages cluster-level replication.
type SiteReplicationSys struct {
	sync.RWMutex

	enabled bool

	// In-memory and persisted multi-site replication state.
	state srState

	iamMetaCache srIAMCache
}

type srState srStateV1

	activeMRFWorkers int32

	objLayer    ObjectLayer
	ctx         context.Context
	priority    string
	maxWorkers  int
	maxLWorkers int
	stats       *ReplicationStats

	mu       sync.RWMutex
	mrfMU    sync.Mutex
	resyncer *replicationResyncer

	// workers:
	workers    []chan ReplicationWorkerOperation
	lrgworkers []chan ReplicationWorkerOperation

	// mrf: