tsdbutil

package
v2.24.1-v2-2 Latest Latest
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Published: Feb 10, 2021 License: Apache-2.0 Imports: 3 Imported by: 0

Documentation

Index

Constants

This section is empty.

Variables

This section is empty.

Functions

func ChunkFromSamples

func ChunkFromSamples(s []Sample) chunks.Meta

func ChunkFromSamplesGeneric

func ChunkFromSamplesGeneric(s Samples) chunks.Meta

func PopulatedChunk

func PopulatedChunk(numSamples int, minTime int64) chunks.Meta

PopulatedChunk creates a chunk populated with samples every second starting at minTime

Types

type BufferedSeriesIterator

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

BufferedSeriesIterator wraps an iterator with a look-back buffer.

func NewBuffer

func NewBuffer(it chunkenc.Iterator, delta int64) *BufferedSeriesIterator

NewBuffer returns a new iterator that buffers the values within the time range of the current element and the duration of delta before.

func (*BufferedSeriesIterator) At

At returns the current element of the iterator.

func (*BufferedSeriesIterator) Buffer

Buffer returns an iterator over the buffered data.

func (*BufferedSeriesIterator) Err

func (b *BufferedSeriesIterator) Err() error

Err returns the last encountered error.

func (*BufferedSeriesIterator) Next

func (b *BufferedSeriesIterator) Next() bool

Next advances the iterator to the next element.

func (*BufferedSeriesIterator) PeekBack

func (b *BufferedSeriesIterator) PeekBack() (t int64, v float64, ok bool)

PeekBack returns the previous element of the iterator. If there is none buffered, ok is false.

func (*BufferedSeriesIterator) Seek

func (b *BufferedSeriesIterator) Seek(t int64) bool

Seek advances the iterator to the element at time t or greater.

type Sample

type Sample interface {
	T() int64
	V() float64
}

type SampleSlice

type SampleSlice []Sample

func (SampleSlice) Get

func (s SampleSlice) Get(i int) Sample

func (SampleSlice) Len

func (s SampleSlice) Len() int

type Samples

type Samples interface {
	Get(i int) Sample
	Len() int
}

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