コード例 #1
0
func (sts *SimpleTxnSubmitter) clientToServerTxn(clientTxnCap *cmsgs.ClientTxn, topologyVersion uint32) (*msgs.Txn, []common.RMId, []common.RMId, error) {
	outgoingSeg := capn.NewBuffer(nil)
	txnCap := msgs.NewTxn(outgoingSeg)

	txnCap.SetId(clientTxnCap.Id())
	txnCap.SetRetry(clientTxnCap.Retry())
	txnCap.SetSubmitter(uint32(sts.rmId))
	txnCap.SetSubmitterBootCount(sts.bootCount)
	txnCap.SetFInc(sts.topology.FInc)
	txnCap.SetTopologyVersion(topologyVersion)

	clientActions := clientTxnCap.Actions()
	actions := msgs.NewActionList(outgoingSeg, clientActions.Len())
	txnCap.SetActions(actions)
	picker := ch.NewCombinationPicker(int(sts.topology.FInc), sts.disabledHashCodes)

	rmIdToActionIndices, err := sts.translateActions(outgoingSeg, picker, &actions, &clientActions)
	if err != nil {
		return nil, nil, nil, err
	}

	// NB: we're guaranteed that activeRMs and passiveRMs are
	// disjoint. Thus there is no RM that has some active and some
	// passive actions.
	activeRMs, passiveRMs, err := picker.Choose()
	if err != nil {
		return nil, nil, nil, err
	}
	allocations := msgs.NewAllocationList(outgoingSeg, len(activeRMs)+len(passiveRMs))
	txnCap.SetAllocations(allocations)
	sts.setAllocations(0, rmIdToActionIndices, &allocations, outgoingSeg, true, activeRMs)
	sts.setAllocations(len(activeRMs), rmIdToActionIndices, &allocations, outgoingSeg, false, passiveRMs)
	return &txnCap, activeRMs, passiveRMs, nil
}
コード例 #2
0
func deflateTxn(txn *msgs.Txn, seg *capn.Segment) *msgs.Txn {
	if isDeflated(txn) {
		return txn
	}
	deflatedTxn := msgs.NewTxn(seg)
	deflatedTxn.SetId(txn.Id())
	deflatedTxn.SetRetry(txn.Retry())
	deflatedTxn.SetSubmitter(txn.Submitter())
	deflatedTxn.SetSubmitterBootCount(txn.SubmitterBootCount())
	deflatedTxn.SetFInc(txn.FInc())
	deflatedTxn.SetTopologyVersion(txn.TopologyVersion())

	deflatedTxn.SetAllocations(txn.Allocations())

	actionsList := txn.Actions()
	deflatedActionsList := msgs.NewActionList(seg, actionsList.Len())
	deflatedTxn.SetActions(deflatedActionsList)
	for idx, l := 0, actionsList.Len(); idx < l; idx++ {
		deflatedAction := deflatedActionsList.At(idx)
		deflatedAction.SetVarId(actionsList.At(idx).VarId())
		deflatedAction.SetMissing()
	}

	return &deflatedTxn
}