func (c *Context) goScan(zop bool, tableId uint8, rowKey, colKey []byte,
score int64, start, asc, orderByScore bool, num int,
done chan *Call) (*Call, error) {
call := c.cli.newCall(proto.CmdScan, done)
if call.err != nil {
return call, call.err
}
if num < 1 {
c.cli.errCall(call, ErrInvScanNum)
return call, call.err
}
var p proto.PkgScanReq
p.Seq = call.seq
p.DbId = c.dbId
p.Cmd = call.cmd
if asc {
p.PkgFlag |= proto.FlagScanAsc
}
if start {
p.PkgFlag |= proto.FlagScanKeyStart
}
p.Num = uint16(num)
p.TableId = tableId
p.RowKey = rowKey
p.ColKey = colKey
// ZScan
if zop {
p.PkgFlag |= proto.FlagZop
p.SetScore(score)
if orderByScore {
p.SetColSpace(proto.ColSpaceScore1)
} else {
p.SetColSpace(proto.ColSpaceScore2)
}
}
var pkgLen = p.Length()
if pkgLen > proto.MaxPkgLen {
c.cli.errCall(call, ErrInvPkgLen)
return call, call.err
}
call.pkg = make([]byte, pkgLen)
_, err := p.Encode(call.pkg)
if err != nil {
c.cli.errCall(call, err)
return call, err
}
call.ctx = scanContext{tableId, rowKey, zop, asc, orderByScore, num}
c.cli.sending <- call
return call, nil
}
func TestTableZScan(t *testing.T) {
// MZSET
{
var in proto.PkgMultiOp
in.Cmd = proto.CmdMSet
in.DbId = 2
in.Seq = 20
in.PkgFlag |= proto.FlagZop
in.Kvs = append(in.Kvs, getTestKV(2, []byte("row2"), []byte("col0"), []byte("v0"), 40, 0))
in.Kvs = append(in.Kvs, getTestKV(2, []byte("row2"), []byte("col1"), []byte("v1"), 30, 0))
in.Kvs = append(in.Kvs, getTestKV(2, []byte("row2"), []byte("col2"), []byte("v2"), 20, 0))
in.Kvs = append(in.Kvs, getTestKV(2, []byte("row2"), []byte("col3"), []byte("v3"), 10, 0))
in.Kvs = append(in.Kvs, getTestKV(2, []byte("row2"), []byte("col4"), []byte("v4"), 0, 0))
myMSet(in, testAuth, getTestWA(), true, t)
}
// ZSCAN ASC order by SCORE
var in proto.PkgScanReq
in.Cmd = proto.CmdScan
in.DbId = 2
in.Seq = 20
in.Num = 10
in.TableId = 2
in.RowKey = []byte("row2")
in.SetScore(-1)
in.ColKey = []byte("")
in.PkgFlag |= proto.FlagScanAsc
in.SetColSpace(proto.ColSpaceScore1) // order by SCORE
out := myScan(in, testAuth, t)
if len(out.Kvs) != 5 {
t.Fatalf("Invalid KV number: %d", len(out.Kvs))
}
if out.PkgFlag&proto.FlagScanEnd == 0 {
t.Fatalf("Scan should end")
}
for i := 0; i < len(out.Kvs); i++ {
idx := 4 - i
if out.Kvs[i].ErrCode != 0 {
t.Fatalf("ErrCode is 0")
}
if out.Kvs[i].TableId != 2 {
t.Fatalf("TableId mismatch")
}
if bytes.Compare(out.Kvs[i].RowKey, []byte("row2")) != 0 {
t.Fatalf("RowKey mismatch")
}
if bytes.Compare(out.Kvs[i].ColKey, []byte(fmt.Sprintf("col%d", idx))) != 0 {
t.Fatalf("ColKey mismatch")
}
if out.Kvs[i].Score != int64(i*10) {
t.Fatalf("Score mismatch")
}
if bytes.Compare(out.Kvs[i].Value, []byte(fmt.Sprintf("v%d", idx))) != 0 {
t.Fatalf("Value mismatch")
}
}
// ZSCAN DESC order by SCORE
in.PkgFlag &^= 0xFF
in.PkgFlag |= proto.FlagScanKeyStart
out = myScan(in, testAuth, t)
if len(out.Kvs) != 5 {
t.Fatalf("Invalid KV number: %d", len(out.Kvs))
}
if out.PkgFlag&proto.FlagScanEnd == 0 {
t.Fatalf("Scan should end")
}
for i := 0; i < len(out.Kvs); i++ {
idx := 4 - i
if out.Kvs[i].ErrCode != 0 {
t.Fatalf("ErrCode is 0")
}
if out.Kvs[i].TableId != 2 {
t.Fatalf("TableId mismatch")
}
if bytes.Compare(out.Kvs[i].RowKey, []byte("row2")) != 0 {
t.Fatalf("RowKey mismatch")
}
if bytes.Compare(out.Kvs[i].ColKey, []byte(fmt.Sprintf("col%d", i))) != 0 {
t.Fatalf("ColKey mismatch")
}
if out.Kvs[i].Score != int64(idx*10) {
t.Fatalf("Score mismatch")
}
if bytes.Compare(out.Kvs[i].Value, []byte(fmt.Sprintf("v%d", i))) != 0 {
t.Fatalf("Value mismatch")
}
}
}