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config_qc_qspecs_test.go
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config_qc_qspecs_test.go
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package dev_test
import (
"sort"
qc "github.com/relab/gorums/dev"
)
type MajorityQSpec struct {
q int
}
func NewMajorityQSpec(n int) qc.QuorumSpec {
return &MajorityQSpec{q: n/2 + 1}
}
func (mqs *MajorityQSpec) ReadQF(replies []*qc.State) (*qc.State, bool) {
if len(replies) < mqs.q {
return nil, false
}
return replies[0], true
}
func (mqs *MajorityQSpec) ReadFutureQF(replies []*qc.State) (*qc.State, bool) {
if len(replies) < mqs.q {
return nil, false
}
return replies[0], true
}
func (mqs *MajorityQSpec) ReadCustomReturnQF(replies []*qc.State) (*qc.MyState, bool) {
state, ok := mqs.ReadQF(replies)
if !ok {
return nil, false
}
myState := &qc.MyState{
Value: state.Value,
Timestamp: state.Timestamp,
Extra: 123,
}
return myState, ok
}
func (mqs *MajorityQSpec) ReadCorrectableQF(replies []*qc.State) (*qc.State, int, bool) {
panic("not implemented")
}
func (mqs *MajorityQSpec) ReadCorrectableStreamQF(replies []*qc.State) (*qc.State, int, bool) {
panic("not implemented")
}
func (mqs *MajorityQSpec) WriteQF(req *qc.State, replies []*qc.WriteResponse) (*qc.WriteResponse, bool) {
if len(replies) < mqs.q {
return nil, false
}
return replies[0], true
}
func (mqs *MajorityQSpec) WriteFutureQF(req *qc.State, replies []*qc.WriteResponse) (*qc.WriteResponse, bool) {
if len(replies) < mqs.q {
return nil, false
}
return replies[0], true
}
func (mqs *MajorityQSpec) WritePerNodeQF(replies []*qc.WriteResponse) (*qc.WriteResponse, bool) {
if len(replies) < mqs.q {
return nil, false
}
return replies[0], true
}
type StorageQSpec struct {
rq, wq int
}
func NewStorageQSpec(rq, wq int) qc.QuorumSpec {
return &StorageQSpec{
rq: rq,
wq: wq,
}
}
func (sqs *StorageQSpec) ReadQF(replies []*qc.State) (*qc.State, bool) {
if len(replies) < sqs.rq {
return nil, false
}
return replies[0], true
}
func (sqs *StorageQSpec) ReadFutureQF(replies []*qc.State) (*qc.State, bool) {
if len(replies) < sqs.rq {
return nil, false
}
return replies[0], true
}
func (sqs *StorageQSpec) ReadCustomReturnQF(replies []*qc.State) (*qc.MyState, bool) {
state, ok := sqs.ReadQF(replies)
if !ok {
return nil, false
}
myState := &qc.MyState{
Value: state.Value,
Timestamp: state.Timestamp,
Extra: 123,
}
return myState, ok
}
func (sqs *StorageQSpec) ReadCorrectableQF(replies []*qc.State) (*qc.State, int, bool) {
panic("not implemented")
}
func (sqs *StorageQSpec) ReadCorrectableStreamQF(replies []*qc.State) (*qc.State, int, bool) {
panic("not implemented")
}
func (sqs *StorageQSpec) WriteQF(req *qc.State, replies []*qc.WriteResponse) (*qc.WriteResponse, bool) {
if len(replies) < sqs.wq {
return nil, false
}
return replies[0], true
}
func (sqs *StorageQSpec) WriteFutureQF(req *qc.State, replies []*qc.WriteResponse) (*qc.WriteResponse, bool) {
if len(replies) < sqs.wq {
return nil, false
}
return replies[0], true
}
func (sqs *StorageQSpec) WritePerNodeQF(replies []*qc.WriteResponse) (*qc.WriteResponse, bool) {
if len(replies) < sqs.wq {
return nil, false
}
return replies[0], true
}
const (
LevelWeak = 1
LevelStrong = 2
)
type StorageByTimestampQSpec struct {
rq, wq int
}
func NewStorageByTimestampQSpec(rq, wq int) qc.QuorumSpec {
return &StorageByTimestampQSpec{
rq: rq,
wq: wq,
}
}
func (sqs *StorageByTimestampQSpec) ReadQF(replies []*qc.State) (*qc.State, bool) {
if len(replies) < sqs.rq {
return nil, false
}
sort.Sort(ByTimestamp(replies))
return replies[len(replies)-1], true
}
func (sqs *StorageByTimestampQSpec) ReadFutureQF(replies []*qc.State) (*qc.State, bool) {
if len(replies) < sqs.rq {
return nil, false
}
sort.Sort(ByTimestamp(replies))
return replies[len(replies)-1], true
}
func (sqs *StorageByTimestampQSpec) ReadCustomReturnQF(replies []*qc.State) (*qc.MyState, bool) {
state, ok := sqs.ReadQF(replies)
if !ok {
return nil, false
}
myState := &qc.MyState{
Value: state.Value,
Timestamp: state.Timestamp,
Extra: 123,
}
return myState, ok
}
func (sqs *StorageByTimestampQSpec) ReadCorrectableQF(replies []*qc.State) (*qc.State, int, bool) {
if len(replies) == 0 {
return nil, qc.LevelNotSet, false
}
sort.Sort(ByTimestamp(replies))
if len(replies) < sqs.rq {
return replies[len(replies)-1], LevelWeak, false
}
return replies[len(replies)-1], LevelStrong, true
}
func (sqs *StorageByTimestampQSpec) ReadCorrectableStreamQF(replies []*qc.State) (*qc.State, int, bool) {
if len(replies) == 0 {
return nil, qc.LevelNotSet, false
}
sort.Sort(ByTimestamp(replies))
if len(replies) < sqs.rq {
return replies[len(replies)-1], LevelWeak, false
}
return replies[len(replies)-1], LevelStrong, true
}
func (sqs *StorageByTimestampQSpec) WriteQF(req *qc.State, replies []*qc.WriteResponse) (*qc.WriteResponse, bool) {
if len(replies) < sqs.wq {
return nil, false
}
return replies[0], true
}
func (sqs *StorageByTimestampQSpec) WriteFutureQF(req *qc.State, replies []*qc.WriteResponse) (*qc.WriteResponse, bool) {
if len(replies) < sqs.wq {
return nil, false
}
return replies[0], true
}
func (sqs *StorageByTimestampQSpec) WritePerNodeQF(replies []*qc.WriteResponse) (*qc.WriteResponse, bool) {
if len(replies) < sqs.wq {
return nil, false
}
return replies[0], true
}
type NeverQSpec struct{}
func (*NeverQSpec) ReadQF(replies []*qc.State) (*qc.State, bool) {
return nil, false
}
func (*NeverQSpec) ReadFutureQF(replies []*qc.State) (*qc.State, bool) {
return nil, false
}
func (*NeverQSpec) ReadCustomReturnQF(replies []*qc.State) (*qc.MyState, bool) {
return nil, false
}
func (*NeverQSpec) ReadCorrectableQF(replies []*qc.State) (*qc.State, int, bool) {
return nil, qc.LevelNotSet, false
}
func (*NeverQSpec) ReadCorrectableStreamQF(replies []*qc.State) (*qc.State, int, bool) {
return nil, qc.LevelNotSet, false
}
func (*NeverQSpec) WriteQF(req *qc.State, replies []*qc.WriteResponse) (*qc.WriteResponse, bool) {
return nil, false
}
func (*NeverQSpec) WriteFutureQF(req *qc.State, replies []*qc.WriteResponse) (*qc.WriteResponse, bool) {
return nil, false
}
func (*NeverQSpec) WritePerNodeQF(replies []*qc.WriteResponse) (*qc.WriteResponse, bool) {
return nil, false
}
type ReadCorrectableStreamTestQSpec struct{}
func (*ReadCorrectableStreamTestQSpec) ReadQF(replies []*qc.State) (*qc.State, bool) {
panic("not implemented")
}
func (*ReadCorrectableStreamTestQSpec) ReadFutureQF(replies []*qc.State) (*qc.State, bool) {
panic("not implemented")
}
func (*ReadCorrectableStreamTestQSpec) ReadCustomReturnQF(replies []*qc.State) (*qc.MyState, bool) {
panic("not implemented")
}
func (*ReadCorrectableStreamTestQSpec) ReadCorrectableQF(replies []*qc.State) (*qc.State, int, bool) {
panic("not implemented")
}
func (*ReadCorrectableStreamTestQSpec) ReadCorrectableStreamQF(replies []*qc.State) (*qc.State, int, bool) {
switch len(replies) {
case 0:
return nil, qc.LevelNotSet, false
case 1:
return replies[len(replies)-1], 1, false
case 2:
return replies[len(replies)-1], 2, false
case 3:
return replies[len(replies)-1], 3, false
case 4:
return replies[len(replies)-1], 4, true
default:
return replies[len(replies)-1], 42, true
}
}
func (*ReadCorrectableStreamTestQSpec) WriteQF(req *qc.State, replies []*qc.WriteResponse) (*qc.WriteResponse, bool) {
panic("not implemented")
}
func (*ReadCorrectableStreamTestQSpec) WriteFutureQF(req *qc.State, replies []*qc.WriteResponse) (*qc.WriteResponse, bool) {
panic("not implemented")
}
func (*ReadCorrectableStreamTestQSpec) WritePerNodeQF(replies []*qc.WriteResponse) (*qc.WriteResponse, bool) {
panic("not implemented")
}