update table test

This commit is contained in:
siddontang 2014-11-06 13:46:02 +08:00
parent 128827999f
commit c3303e1fdb
2 changed files with 201 additions and 16 deletions

View File

@ -18,7 +18,7 @@ import (
var (
magic = []byte("\x1c\x1d\xb8\x88\xff\x9e\x45\x55\x40\xf0\x4c\xda\xe0\xce\x47\xde\x65\x48\x71\x17")
log0Data = []byte("00000000000000000")
log0Data = make([]byte, 17)
errTableNeedFlush = errors.New("write table need flush")
errTableFrozen = errors.New("write table is frozen")
)
@ -26,7 +26,7 @@ var (
const tableReaderKeepaliveInterval int64 = 30
func fmtTableName(index int64) string {
return fmt.Sprintf("%08d", index)
return fmt.Sprintf("%08d.ldb", index)
}
type tableReader struct {
@ -184,13 +184,15 @@ func (t *tableReader) repair() error {
defer t.close()
tw := newTableWriter(path.Base(t.name), t.index, maxLogFileSize)
tw.name = tw.name + ".tmp"
os.Remove(tw.name)
tw := newTableWriter(path.Dir(t.name), t.index, maxLogFileSize)
tmpName := tw.name + ".tmp"
tw.name = tmpName
os.Remove(tmpName)
defer func() {
tw.Close()
os.Remove(tw.name)
os.Remove(tmpName)
}()
var l Log
@ -221,9 +223,11 @@ func (t *tableReader) repair() error {
t.offsetStartPos = tr.offsetStartPos
t.offsetLen = tr.offsetLen
defer tr.Close()
os.Remove(t.name)
if err := os.Rename(tw.name, t.name); err != nil {
if err := os.Rename(tmpName, t.name); err != nil {
return err
}
@ -244,7 +248,7 @@ func (t *tableReader) decodeLogHead(l *Log, pos int64) (int64, error) {
return pos + int64(l.HeadSize()) + int64(dataLen), nil
}
func (t *tableReader) ReadLog(id uint64, l *Log) error {
func (t *tableReader) GetLog(id uint64, l *Log) error {
if id < t.first || id > t.last {
return fmt.Errorf("log %d not in [%d=%d]", id, t.first, t.last)
}
@ -373,7 +377,7 @@ func (t *tableWriter) Flush() (*tableReader, error) {
st, _ := t.wf.Stat()
tr.offsetStartPos = st.Size() + int64(len(log0Data))
tr.offsetLen = uint32(len(t.offsetBuf) / 4)
tr.offsetLen = uint32(len(t.offsetBuf))
tr.first = t.first
tr.last = t.last
@ -416,13 +420,13 @@ func (t *tableWriter) Flush() (*tableReader, error) {
}
func (t *tableWriter) StoreLog(l *Log) error {
if l.ID == 0 {
return ErrStoreLogID
}
t.Lock()
defer t.Unlock()
if t.frozen {
return errTableFrozen
}
if t.last > 0 && l.ID != t.last+1 {
return ErrStoreLogID
}
@ -433,7 +437,7 @@ func (t *tableWriter) StoreLog(l *Log) error {
var err error
if t.wf == nil {
if t.wf, err = os.OpenFile(t.name, os.O_CREATE|os.O_APPEND, 0644); err != nil {
if t.wf, err = os.OpenFile(t.name, os.O_CREATE|os.O_WRONLY, 0644); err != nil {
return err
}
}
@ -473,7 +477,7 @@ func (t *tableWriter) GetLog(id uint64, l *Log) error {
return errTableFrozen
}
if id < t.first && id > t.last {
if id < t.first || id > t.last {
return fmt.Errorf("log %d not in [%d=%d]", id, t.first, t.last)
}

View File

@ -1,17 +1,198 @@
package rpl
import (
"github.com/siddontang/go/log"
"io/ioutil"
"os"
"testing"
"time"
)
func TestFileTable(t *testing.T) {
base, err := ioutil.TempDir("./", "test_table")
log.SetLevel(log.LevelFatal)
base, err := ioutil.TempDir("", "test_table")
if err != nil {
t.Fatal(err)
}
os.MkdirAll(base, 0755)
defer os.RemoveAll(base)
l := new(Log)
l.Compression = 0
l.Data = make([]byte, 4096)
w := newTableWriter(base, 1, 1024*1024)
defer w.Close()
for i := 0; i < 10; i++ {
l.ID = uint64(i + 1)
l.CreateTime = uint32(time.Now().Unix())
l.Data[0] = byte(i + 1)
if err := w.StoreLog(l); err != nil {
t.Fatal(err)
}
}
if w.first != 1 {
t.Fatal(w.first)
} else if w.last != 10 {
t.Fatal(w.last)
}
l.ID = 10
if err := w.StoreLog(l); err == nil {
t.Fatal("must err")
}
var ll Log
if err = ll.Unmarshal(log0Data); err != nil {
t.Fatal(err)
}
for i := 0; i < 10; i++ {
if err := w.GetLog(uint64(i+1), &ll); err != nil {
t.Fatal(err)
} else if len(ll.Data) != 4096 {
t.Fatal(len(ll.Data))
} else if ll.Data[0] != byte(i+1) {
t.Fatal(ll.Data[0])
}
}
if err := w.GetLog(12, &ll); err == nil {
t.Fatal("must nil")
}
for i := 0; i < 10; i++ {
if err := w.GetLog(uint64(i+1), &ll); err != nil {
t.Fatal(err)
} else if len(ll.Data) != 4096 {
t.Fatal(len(ll.Data))
} else if ll.Data[0] != byte(i+1) {
t.Fatal(ll.Data[0])
}
}
var r *tableReader
name := w.name
if r, err = w.Flush(); err != nil {
t.Fatal(err)
}
for i := 10; i < 20; i++ {
l.ID = uint64(i + 1)
l.CreateTime = uint32(time.Now().Unix())
l.Data[0] = byte(i + 1)
if err := w.StoreLog(l); err != nil {
t.Fatal(err)
}
}
if w.first != 11 {
t.Fatal(w.first)
} else if w.last != 20 {
t.Fatal(w.last)
}
defer r.Close()
if err := r.GetLog(12, &ll); err == nil {
t.Fatal("must nil")
}
r.Close()
if r, err = newTableReader(name); err != nil {
t.Fatal(err)
}
defer r.Close()
for i := 0; i < 10; i++ {
if err := r.GetLog(uint64(i+1), &ll); err != nil {
t.Fatal(err)
} else if len(ll.Data) != 4096 {
t.Fatal(len(ll.Data))
} else if ll.Data[0] != byte(i+1) {
t.Fatal(ll.Data[0])
}
}
if err := r.GetLog(12, &ll); err == nil {
t.Fatal("must nil")
}
st, _ := r.f.Stat()
s := st.Size()
r.Close()
testRepair(t, name, s, 11)
testRepair(t, name, s, 32)
testRepair(t, name, s, 42)
testRepair(t, name, s, 72)
if err := os.Truncate(name, s-73); err != nil {
t.Fatal(err)
}
if r, err = newTableReader(name); err == nil {
t.Fatal("can not repair")
}
name = w.name
if r, err := w.Flush(); err != nil {
t.Fatal(err)
} else {
r.Close()
}
if r, err = newTableReader(name); err != nil {
t.Fatal(err)
}
defer r.Close()
}
func testRepair(t *testing.T, name string, s int64, cutSize int64) {
var r *tableReader
var err error
if err := os.Truncate(name, s-cutSize); err != nil {
t.Fatal(err)
}
if r, err = newTableReader(name); err != nil {
t.Fatal(err)
}
defer r.Close()
var ll Log
for i := 0; i < 10; i++ {
if err := r.GetLog(uint64(i+1), &ll); err != nil {
t.Fatal(err)
} else if len(ll.Data) != 4096 {
t.Fatal(len(ll.Data))
} else if ll.Data[0] != byte(i+1) {
t.Fatal(ll.Data[0])
}
}
if err := r.GetLog(12, &ll); err == nil {
t.Fatal("must nil")
}
st, _ := r.f.Stat()
if s != st.Size() {
t.Fatalf("repair error size %d != %d", s, st.Size())
}
}