本文整理汇总了Golang中github.com/syndtr/goleveldb/leveldb/opt.Options.GetNumLevel方法的典型用法代码示例。如果您正苦于以下问题：Golang Options.GetNumLevel方法的具体用法？Golang Options.GetNumLevel怎么用？Golang Options.GetNumLevel使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类github.com/syndtr/goleveldb/leveldb/opt.Options的用法示例。
在下文中一共展示了Options.GetNumLevel方法的2个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Golang代码示例。
示例1: newSession
// Creates new initialized session instance.
func newSession(stor storage.Storage, o *opt.Options) (s *session, err error) {
if stor == nil {
return nil, os.ErrInvalid
}
storLock, err := stor.Lock()
if err != nil {
return
}
s = &session{
stor: stor,
storLock: storLock,
stCompPtrs: make([]iKey, o.GetNumLevel()),
}
s.setOptions(o)
s.tops = newTableOps(s, s.o.GetCachedOpenFiles())
s.setVersion(newVersion(s))
s.log("[email protected] F·NumFile S·FileSize N·Entry C·BadEntry B·BadBlock Ke·KeyError D·DroppedEntry L·Level Q·SeqNum T·TimeElapsed")
return
}示例2: recoverTable
func recoverTable(s *session, o *opt.Options) error {
o = dupOptions(o)
// Mask StrictReader, lets StrictRecovery doing its job.
o.Strict &= ^opt.StrictReader
// Get all tables and sort it by file number.
tableFiles_, err := s.getFiles(storage.TypeTable)
if err != nil {
return err
}
tableFiles := files(tableFiles_)
tableFiles.sort()
var (
maxSeq uint64
recoveredKey, goodKey, corruptedKey, corruptedBlock, droppedTable int
// We will drop corrupted table.
strict = o.GetStrict(opt.StrictRecovery)
rec = &sessionRecord{numLevel: o.GetNumLevel()}
bpool = util.NewBufferPool(o.GetBlockSize() + 5)
)
buildTable := func(iter iterator.Iterator) (tmp storage.File, size int64, err error) {
tmp = s.newTemp()
writer, err := tmp.Create()
if err != nil {
return
}
defer func() {
writer.Close()
if err != nil {
tmp.Remove()
tmp = nil
}
}()
// Copy entries.
tw := table.NewWriter(writer, o)
for iter.Next() {
key := iter.Key()
if validIkey(key) {
err = tw.Append(key, iter.Value())
if err != nil {
return
}
}
}
err = iter.Error()
if err != nil {
return
}
err = tw.Close()
if err != nil {
return
}
err = writer.Sync()
if err != nil {
return
}
size = int64(tw.BytesLen())
return
}
recoverTable := func(file storage.File) error {
s.logf("[email protected] recovering @%d", file.Num())
reader, err := file.Open()
if err != nil {
return err
}
var closed bool
defer func() {
if !closed {
reader.Close()
}
}()
// Get file size.
size, err := reader.Seek(0, 2)
if err != nil {
return err
}
var (
tSeq uint64
tgoodKey, tcorruptedKey, tcorruptedBlock int
imin, imax []byte
)
tr, err := table.NewReader(reader, size, storage.NewFileInfo(file), nil, bpool, o)
if err != nil {
return err
}
iter := tr.NewIterator(nil, nil)
iter.(iterator.ErrorCallbackSetter).SetErrorCallback(func(err error) {
if errors.IsCorrupted(err) {
s.logf("[email protected] block corruption @%d %q", file.Num(), err)
tcorruptedBlock++
}
})
// Scan the table.
//.........这里部分代码省略.........