func BenchmarkBitcaskCurrency(b *testing.B) {
storagePath := "benchMarkBitcask"
os.RemoveAll(storagePath)
opts := &Options{
MaxFileSize: 1 << 12,
}
bc, err := Open(storagePath, opts)
if err != nil {
logger.Fatal(err)
}
keyValues := make(map[int]string)
for i := 0; i < b.N/2; i++ {
key := strconv.Itoa(i)
value := strconv.Itoa(int(time.Now().Unix()))
bc.Put([]byte(key), []byte(value))
keyValues[i] = value
}
logger.Warn(b.N)
logger.Info("Put all Data")
for i := 0; i < b.N/2; i++ {
k := strconv.Itoa(i)
v, _ := bc.Get([]byte(k))
if string(v) != keyValues[i] {
logger.Error(string(v), keyValues[i])
os.Exit(-1)
}
}
logger.Info("Get all data")
// delete all data
for i := 0; i < b.N/2; i++ {
k := strconv.Itoa(i)
//v, _ := bc.Get([]byte(k))
err := bc.Del([]byte(k))
if err != nil {
logger.Error(err)
}
}
logger.Info("Delete all data")
// Get all data
for i := 0; i < b.N/2; i++ {
k := strconv.Itoa(i)
v, err := bc.Get([]byte(k))
if err != ErrNotFound {
logger.Error(string(v), keyValues[i])
}
}
logger.Info("all data is not found, pass test")
//mergeWorker.Staop()
bc.Close()
}
// Get ...
func (bc *BitCask) Get(key []byte) ([]byte, error) {
e := keyDirs.get(string(key))
if e == nil {
return nil, ErrNotFound
}
fileID := e.fileID
bf, err := bc.getFileState(fileID)
if err != nil && os.IsNotExist(err) {
logger.Warn("key:", string(key), "=>the file is not exits:", fileID)
//time.Sleep(time.Second)
return nil, err
}
//TODO
// assrt file crc32
//logger.Info("fileID", fileID, "entry offset:", e.valueOffset, "\t entryLen:", e.valueSz)
return bf.read(e.valueOffset, e.valueSz)
}