tbtree

package
v1.2.2 Latest Latest
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 Go to latest Published: Jan 18, 2022 License: Apache-2.0 Imports: 17 Imported by: 0

Documentation

Overview

Copyright 2021 CodeNotary, Inc. All rights reserved.

Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at 

http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.

Copyright 2021 CodeNotary, Inc. All rights reserved.

Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at 

http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.

Copyright 2021 CodeNotary, Inc. All rights reserved.

Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at 

http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.

Copyright 2021 CodeNotary, Inc. All rights reserved.

Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at 

http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.

Copyright 2021 CodeNotary, Inc. All rights reserved.

Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at 

http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.

Index

Constants

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const (
	InnerNodeType = iota
	LeafNodeType
)
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const (
	MetaVersion     = "VERSION"
	MetaMaxNodeSize = "MAX_NODE_SIZE"
)
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const DefaultCacheSize = 100_000
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const DefaultCompactionThld = 2
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const DefaultFileMode = os.FileMode(0755)
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const DefaultFileSize = 1 << 26 // 64Mb
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const DefaultFlushThld = 100_000
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const DefaultMaxActiveSnapshots = 100
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const DefaultMaxKeyLen = 1024
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const DefaultMaxNodeSize = 4096
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const DefaultRenewSnapRootAfter = time.Duration(1000) * time.Millisecond
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const MinCacheSize = 1
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const MinNodeSize = 128
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const Version = 1

Variables

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var ErrAlreadyClosed = errors.New("index already closed")
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var ErrCompactAlreadyInProgress = errors.New("compact already in progress")
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var ErrCompactionThresholdNotReached = errors.New("compaction threshold not yet reached")
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var ErrCorruptedCLog = errors.New("commit log is corrupted")
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var ErrCorruptedFile = errors.New("file is corrupted")
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var ErrIllegalArguments = errors.New("illegal arguments")
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var ErrIllegalState = errors.New("illegal state")
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var ErrKeyNotFound = errors.New("key not found")
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var ErrNoMoreEntries = errors.New("no more entries")
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var ErrOffsetOutOfRange = errors.New("offset out of range")
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var ErrReadersNotClosed = errors.New("readers not closed")
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var ErrReadingFileContent = errors.New("error reading required file content")
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var ErrSnapshotsNotClosed = errors.New("snapshots not closed")
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var ErrorMaxKVLenExceeded = errors.New("max kv length exceeded")
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var ErrorPathIsNotADirectory = errors.New("path is not a directory")
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var ErrorToManyActiveSnapshots = errors.New("max active snapshots limit reached")

Functions

This section is empty.

Types

type AppFactoryFunc added in v1.0.5 

type AppFactoryFunc func(
	rootPath string,
	subPath string,
	opts *multiapp.Options,
) (appendable.Appendable, error)

type HistoryReader added in v0.9.1 

type HistoryReader struct {
	// contains filtered or unexported fields
}

func (*HistoryReader) Close added in v0.9.1 

func (r *HistoryReader) Close() error

func (*HistoryReader) Read added in v0.9.1 

func (r *HistoryReader) Read() (tss []uint64, err error)

type HistoryReaderSpec added in v0.9.1 

type HistoryReaderSpec struct {
	Key       []byte
	Offset    uint64
	DescOrder bool
	ReadLimit int
}

type KV 

type KV struct {
	K []byte
	V []byte
}

type Options 

type Options struct {
	// contains filtered or unexported fields
}

func DefaultOptions 

func DefaultOptions() *Options

func (*Options) WithAppFactory added in v1.0.5 

func (opts *Options) WithAppFactory(appFactory AppFactoryFunc) *Options

func (*Options) WithCacheSize 

func (opts *Options) WithCacheSize(cacheSize int) *Options

func (*Options) WithCompactionThld added in v0.9.2 

func (opts *Options) WithCompactionThld(compactionThld int) *Options

func (*Options) WithDelayDuringCompaction added in v0.9.2 

func (opts *Options) WithDelayDuringCompaction(delay time.Duration) *Options

func (*Options) WithFileMode 

func (opts *Options) WithFileMode(fileMode os.FileMode) *Options

func (*Options) WithFileSize 

func (opts *Options) WithFileSize(fileSize int) *Options

func (*Options) WithFlushThld 

func (opts *Options) WithFlushThld(flushThld int) *Options

func (*Options) WithLog added in v0.9.2 

func (opts *Options) WithLog(log logger.Logger) *Options

func (*Options) WithMaxActiveSnapshots 

func (opts *Options) WithMaxActiveSnapshots(maxActiveSnapshots int) *Options

func (*Options) WithMaxKeyLen added in v0.9.1 

func (opts *Options) WithMaxKeyLen(maxKeyLen int) *Options

func (*Options) WithMaxNodeSize 

func (opts *Options) WithMaxNodeSize(maxNodeSize int) *Options

func (*Options) WithReadOnly 

func (opts *Options) WithReadOnly(readOnly bool) *Options

func (*Options) WithRenewSnapRootAfter 

func (opts *Options) WithRenewSnapRootAfter(renewSnapRootAfter time.Duration) *Options

func (*Options) WithSynced 

func (opts *Options) WithSynced(synced bool) *Options

type Reader 

type Reader struct {
	// contains filtered or unexported fields
}

func (*Reader) Close 

func (r *Reader) Close() error

func (*Reader) Read 

func (r *Reader) Read() (key []byte, value []byte, ts, hc uint64, err error)

func (*Reader) ReadAsBefore added in v1.0.0 

func (r *Reader) ReadAsBefore(beforeTs uint64) (key []byte, ts, hc uint64, err error)

func (*Reader) Reset added in v1.0.0 

func (r *Reader) Reset() error

type ReaderSpec 

type ReaderSpec struct {
	SeekKey       []byte
	EndKey        []byte
	Prefix        []byte
	InclusiveSeek bool
	InclusiveEnd  bool
	DescOrder     bool
}

type Snapshot 

type Snapshot struct {
	// contains filtered or unexported fields
}

func (*Snapshot) Close 

func (s *Snapshot) Close() error

func (*Snapshot) ExistKeyWith added in v1.2.0 

func (s *Snapshot) ExistKeyWith(prefix []byte, neq []byte) (bool, error)

func (*Snapshot) Get 

func (s *Snapshot) Get(key []byte) (value []byte, ts uint64, hc uint64, err error)

func (*Snapshot) History added in v0.9.1 

func (s *Snapshot) History(key []byte, offset uint64, descOrder bool, limit int) (tss []uint64, err error)

func (*Snapshot) NewHistoryReader added in v0.9.1 

func (s *Snapshot) NewHistoryReader(spec *HistoryReaderSpec) (*HistoryReader, error)

func (*Snapshot) NewReader added in v0.9.1 

func (s *Snapshot) NewReader(spec *ReaderSpec) (r *Reader, err error)

func (*Snapshot) Set added in v1.2.0 

func (s *Snapshot) Set(key, value []byte) error

func (*Snapshot) Ts 

func (s *Snapshot) Ts() uint64

func (*Snapshot) WriteTo 

func (s *Snapshot) WriteTo(nw, hw io.Writer, writeOpts *WriteOpts) (nOff int64, wN, wH int64, err error)

type TBtree 

type TBtree struct {
	// contains filtered or unexported fields
}

TBTree implements a timed-btree

func Open 

func Open(path string, opts *Options) (*TBtree, error)

func OpenWith 

func OpenWith(path string, nLog, hLog, cLog appendable.Appendable, opts *Options) (*TBtree, error)

func (*TBtree) BulkInsert 

func (t *TBtree) BulkInsert(kvs []*KV) error

func (*TBtree) Close 

func (t *TBtree) Close() error

func (*TBtree) Compact added in v1.0.5 

func (t *TBtree) Compact() (uint64, error)

func (*TBtree) ExistKeyWith added in v1.0.0 

func (t *TBtree) ExistKeyWith(prefix []byte, neq []byte) (bool, error)

func (*TBtree) Flush 

func (t *TBtree) Flush() (wN, wH int64, err error)

func (*TBtree) Get added in v0.9.0 

func (t *TBtree) Get(key []byte) (value []byte, ts uint64, hc uint64, err error)

func (*TBtree) GetOptions added in v0.9.1 

func (t *TBtree) GetOptions() *Options

func (*TBtree) History added in v0.9.1 

func (t *TBtree) History(key []byte, offset uint64, descOrder bool, limit int) (tss []uint64, err error)

func (*TBtree) Insert 

func (t *TBtree) Insert(key []byte, value []byte) error

func (*TBtree) Snapshot 

func (t *TBtree) Snapshot() (*Snapshot, error)

func (*TBtree) SnapshotCount added in v1.0.5 

func (t *TBtree) SnapshotCount() (uint64, error)

SnapshotCount returns the number of stored snapshots Note: snapshotCount(compact(t)) = 1

func (*TBtree) SnapshotSince added in v0.9.0 

func (t *TBtree) SnapshotSince(ts uint64) (*Snapshot, error)

func (*TBtree) Sync 

func (t *TBtree) Sync() error

func (*TBtree) Ts 

func (t *TBtree) Ts() uint64

type WriteOpts 

type WriteOpts struct {
	OnlyMutated    bool
	BaseNLogOffset int64
	BaseHLogOffset int64
	// contains filtered or unexported fields
}

Source Files

View all Source files

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