trace

package

v0.0.0-...-cbea63e Latest Latest Go to latest Published: Dec 4, 2021 License: Apache-2.0 Imports: 9 Imported by: 0

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Repository

github.com/asim/h2o

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Open Source Insights

Documentation ¶

Overview ¶

Trace package facilitates the recording of trace events which allow us to follow a request right the way through the H2 platform

Index ¶

Constants
func Send(e *traceproto.Event) error
type Phosphor
- func (p *Phosphor) Close() error
- func (p *Phosphor) Publish(msg []byte)
type Tracer
- func New() *Tracer

Constants ¶

View Source

const (
	// Decreased from g2s limit of 64KB which seems a bit optimistic
	// If this size is a problem it could probably be increased
	// from 512B as its being sent to localhost
	MAX_PACKET_SIZE = 512 - 8 - 20 // 8-byte UDP header, 20-byte IP header
)

Variables ¶

This section is empty.

Functions ¶

func Send ¶

func Send(e *traceproto.Event) error

Send will ping off a trace event

Types ¶

type Phosphor ¶

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

A Phosphor client is just something which has an io.Writer

func (*Phosphor) Close ¶

func (p *Phosphor) Close() error

Close the UDP socket

func (*Phosphor) Publish ¶

func (p *Phosphor) Publish(msg []byte)

Write trace to the connection as packets Make sure these are smaller than MAX_PACKET_SIZE We then write them into the io.Writer

type Tracer ¶

type Tracer struct {
	sync.RWMutex
	// contains filtered or unexported fields
}

func New ¶

func New() *Tracer

New will mint a new Tracer - getting phosphor connection details from the config service and then looking out for any changes.

Source Files ¶

View all Source files

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