本文整理汇总了Golang中github.com/syndtr/goleveldb/leveldb/table.NewWriter函数的典型用法代码示例。如果您正苦于以下问题：Golang NewWriter函数的具体用法？Golang NewWriter怎么用？Golang NewWriter使用的例子？那么恭喜您, 这里精选的函数代码示例或许可以为您提供帮助。
在下文中一共展示了NewWriter函数的6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: init
func (tc *stConstructor_Table) init(t *testing.T, ho *stHarnessOpt) error {
tc.t = t
tc.o = &opt.Options{
BlockSize: 512,
BlockRestartInterval: 3,
}
tc.writer = table.NewWriter(&tc.buf, tc.o)
return nil
}示例2: create
// Creates an empty table and returns table writer.
func (t *tOps) create() (*tWriter, error) {
fd := storage.FileDesc{storage.TypeTable, t.s.allocFileNum()}
fw, err := t.s.stor.Create(fd)
if err != nil {
return nil, err
}
return &tWriter{
t: t,
fd: fd,
w: fw,
tw: table.NewWriter(fw, t.s.o.Options),
}, nil
}示例3: create
func (t *tOps) create() (*tWriter, error) {
file := t.s.getTableFile(t.s.allocFileNum())
fw, err := file.Create()
if err != nil {
return nil, err
}
return &tWriter{
t: t,
file: file,
w: fw,
tw: table.NewWriter(fw, t.s.o),
}, nil
}示例4: init
func (p *stConstructor_Table) init(t *testing.T, ho *stHarnessOpt) error {
p.t = t
p.file = newTestingStorage(nil).GetFile(0, storage.TypeTable)
p.w, _ = p.file.Create()
o := &opt.Options{
BlockSize: 512,
BlockRestartInterval: 3,
}
p.tw = table.NewWriter(p.w, o)
return nil
}示例5: recoverTable
func recoverTable(s *session, o *opt.Options) error {
// 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 mSeq uint64
var good, corrupted int
rec := new(sessionRecord)
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
}
defer reader.Close()
// Get file size.
size, err := reader.Seek(0, 2)
if err != nil {
return err
}
var tSeq uint64
var tgood, tcorrupted, blockerr int
var imin, imax []byte
tr := table.NewReader(reader, size, nil, bpool, o)
iter := tr.NewIterator(nil, nil)
iter.(iterator.ErrorCallbackSetter).SetErrorCallback(func(err error) {
s.logf("[email protected] found error @%d %q", file.Num(), err)
blockerr++
})
// Scan the table.
for iter.Next() {
key := iter.Key()
_, seq, _, ok := parseIkey(key)
if !ok {
tcorrupted++
continue
}
tgood++
if seq > tSeq {
tSeq = seq
}
if imin == nil {
imin = append([]byte{}, key...)
}
imax = append(imax[:0], key...)
}
if err := iter.Error(); err != nil {
iter.Release()
return err
}
iter.Release()
//.........这里部分代码省略.........
示例6: 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.........