// SLOTSRESTORE key ttlms value [key ttlms value ...]
func (s *Store) SlotsRestore(db uint32, args [][]byte) error {
if len(args) == 0 || len(args)%3 != 0 {
return errArguments("len(args) = %d, expect != 0 && mod 3 = 0", len(args))
}
objs := make([]*rdb.ObjEntry, len(args)/3)
for i := 0; i < len(objs); i++ {
key := args[i*3]
ttlms, err := ParseInt(args[i*3+1])
if err != nil {
return errArguments("parse args failed - %s", err)
}
value := args[i*3+2]
expireat := int64(0)
if ttlms != 0 {
if v, ok := TTLmsToExpireAt(ttlms); ok && v > 0 {
expireat = v
} else {
return errArguments("parse args[%d] ttlms = %d", i*3+1, ttlms)
}
}
obj, err := rdb.DecodeDump(value)
if err != nil {
return errArguments("decode args[%d] failed, %s", i*3+2, err)
}
objs[i] = &rdb.ObjEntry{
DB: db,
Key: key,
ExpireAt: uint64(expireat),
Value: obj,
}
}
if err := s.acquire(); err != nil {
return errors.Trace(err)
}
defer s.release()
ms := &markSet{}
bt := engine.NewBatch()
for i := len(objs) - 1; i >= 0; i-- {
e := objs[i]
if ms.Has(e.Key) {
log.Debugf("[%d] restore batch, db = %d, key = %v, ignore", i, e.DB, e.Key)
continue
} else {
log.Debugf("[%d] restore batch, db = %d, key = %v", i, e.DB, e.Key)
}
if err := s.restore(bt, e.DB, e.Key, int64(e.ExpireAt), e.Value); err != nil {
log.Warningf("restore object failed, db = %d, key = %v, err = %s", e.DB, e.Key, err)
return errors.Trace(err)
}
ms.Set(e.Key)
}
fw := &Forward{DB: db, Op: "SlotsRestore", Args: args}
return s.commit(bt, fw)
}
// RESTORE key ttlms value
func (s *Store) Restore(db uint32, args [][]byte) error {
if len(args) != 3 {
return errArguments("len(args) = %d, expect = 3", len(args))
}
key := args[0]
ttlms, err := ParseInt(args[1])
if err != nil {
return errArguments("parse args failed - %s", err)
}
value := args[2]
expireat := int64(0)
if ttlms != 0 {
if v, ok := TTLmsToExpireAt(ttlms); ok && v > 0 {
expireat = v
} else {
return errArguments("parse ttlms = %d", ttlms)
}
}
obj, err := rdb.DecodeDump(value)
if err != nil {
return errors.Trace(err)
}
if err := s.acquire(); err != nil {
return errors.Trace(err)
}
defer s.release()
fw := &Forward{DB: db, Op: "Restore", Args: args}
bt := engine.NewBatch()
if err := s.restore(bt, db, key, expireat, obj); err != nil {
return errors.Trace(err)
}
return s.commit(bt, fw)
}
func (s *testStoreSuite) checkSlotsMgrt(c *C, r *bufio.Reader, w *bufio.Writer, cc chan error, expect ...interface{}) {
if len(expect) != 0 {
req1, err := redis.Decode(r)
c.Assert(err, IsNil)
cmd1, args1, err := redis.ParseArgs(req1)
c.Assert(err, IsNil)
c.Assert(cmd1, Equals, "select")
c.Assert(len(args1), Equals, 1)
err = redis.Encode(w, redis.NewString("OK"))
c.Assert(err, IsNil)
err = w.Flush()
c.Assert(err, IsNil)
req2, err := redis.Decode(r)
cmd2, args2, err := redis.ParseArgs(req2)
c.Assert(err, IsNil)
c.Assert(cmd2, Equals, "slotsrestore")
c.Assert(len(args2), Equals, len(expect))
m := make(map[string]*struct {
key, value string
ttlms uint64
})
for i := 0; i < len(expect)/3; i++ {
v := &struct {
key, value string
ttlms uint64
}{key: expect[i*3].(string), value: expect[i*3+2].(string)}
v.ttlms, err = ParseUint(expect[i*3+1])
c.Assert(err, IsNil)
m[v.key] = v
}
for i := 0; i < len(expect)/3; i++ {
key := args2[i*3]
ttlms := args2[i*3+1]
value := args2[i*3+2]
v := m[string(key)]
c.Assert(v, NotNil)
c.Assert(string(key), Equals, v.key)
b, err := rdb.DecodeDump(value)
c.Assert(err, IsNil)
c.Assert(string(b.(rdb.String)), Equals, v.value)
x, err := strconv.Atoi(string(ttlms))
c.Assert(err, IsNil)
if v.ttlms == 0 {
c.Assert(x, Equals, 0)
} else {
c.Assert(x, Not(Equals), 0)
c.Assert(math.Abs(float64(x)-float64(v.ttlms)) < 1000, Equals, true)
}
}
err = redis.Encode(w, redis.NewString("OK"))
c.Assert(err, IsNil)
err = w.Flush()
c.Assert(err, IsNil)
}
select {
case err := <-cc:
c.Assert(err, IsNil)
case <-time.After(time.Second):
c.Fatal("timeout error")
}
}