headerlist

Documentation

Index

• func Check(err error) bool
• func Debug(a ...interface{})
• func Debugc(fn func() string)
• func Debugf(format string, a ...interface{})
• func Debugs(a interface{})
• func Error(a ...interface{})
• func Errorc(fn func() string)
• func Errorf(format string, a ...interface{})
• func Errors(a interface{})
• func Fatal(a ...interface{})
• func Fatalc(fn func() string)
• func Fatalf(format string, a ...interface{})
• func Fatals(a interface{})
• func Info(a ...interface{})
• func Infoc(fn func() string)
• func Infof(format string, a ...interface{})
• func Infos(a interface{})
• func Trace(a ...interface{})
• func Tracec(fn func() string)
• func Tracef(format string, a ...interface{})
• func Traces(a interface{})
• func Warn(a ...interface{})
• func Warnc(fn func() string)
• func Warnf(format string, a ...interface{})
• func Warns(a interface{})
• type BoundedMemoryChain
  • func NewBoundedMemoryChain(maxNodes uint32) *BoundedMemoryChain
  • func (b *BoundedMemoryChain) Back() *Node
  • func (b *BoundedMemoryChain) Front() *Node
  • func (b *BoundedMemoryChain) PushBack(n Node) *Node
  • func (b *BoundedMemoryChain) ResetHeaderState(n Node)
• type Chain
• type Node
  • func (n *Node) Prev() *Node

Functions

func Check

func Check(err error) bool

func Debug

func Debug(a ...interface{})

func Debugc

func Debugc(fn func() string)

func Debugf

func Debugf(format string, a ...interface{})

func Debugs

func Debugs(a interface{})

func Error

func Error(a ...interface{})

func Errorc

func Errorc(fn func() string)

func Errorf

func Errorf(format string, a ...interface{})

func Errors

func Errors(a interface{})

func Fatal

func Fatal(a ...interface{})

func Fatalc

func Fatalc(fn func() string)

func Fatalf

func Fatalf(format string, a ...interface{})

func Fatals

func Fatals(a interface{})

func Info

func Info(a ...interface{})

func Infoc

func Infoc(fn func() string)

func Infof

func Infof(format string, a ...interface{})

func Infos

func Infos(a interface{})

func Trace

func Trace(a ...interface{})

func Tracec

func Tracec(fn func() string)

func Tracef

func Tracef(format string, a ...interface{})

func Traces

func Traces(a interface{})

func Warn

func Warn(a ...interface{})

func Warnc

func Warnc(fn func() string)

func Warnf

func Warnf(format string, a ...interface{})

func Warns

func Warns(a interface{})

Types

type BoundedMemoryChain

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

BoundedMemoryChain is an implementation of the headerlist.Chain interface which has a bounded size. The chain will be stored purely in memory. This is useful for enforcing that only the past N headers are stored in memory, or even as the primary header store. If an element inserted to the end of the chain exceeds the size limit, then the head of the chain will be moved forward removing a single entry from the head of the chain.

func NewBoundedMemoryChain

func NewBoundedMemoryChain(maxNodes uint32) *BoundedMemoryChain

NewBoundedMemoryChain returns a new instance of the BoundedMemoryChain with a target max number of nodes.

func (*BoundedMemoryChain) Back

func (b *BoundedMemoryChain) Back() *Node

Back returns the end of the chain. If the chain is empty, then this return a pointer to a nil node.

NOTE: Part of the Chain interface.

func (*BoundedMemoryChain) Front

func (b *BoundedMemoryChain) Front() *Node

Front returns the head of the chain. If the chain is empty, then this returns a pointer to a nil node.

NOTE: Part of the Chain interface.

func (*BoundedMemoryChain) PushBack

func (b *BoundedMemoryChain) PushBack(n Node) *Node

PushBack will push a new entry to the end of the chain. The entry added to the chain is also returned in place. As the chain is bounded, if the length of the chain is exceeded, then the front of the chain will be walked forward one element.

NOTE: Part of the Chain interface.

func (*BoundedMemoryChain) ResetHeaderState

func (b *BoundedMemoryChain) ResetHeaderState(n Node)

ResetHeaderState resets the state of all nodes. After this method, it will be as if the chain was just newly created.

NOTE: Part of the Chain interface.

type Chain

type Chain interface {
	// ResetHeaderState resets the state of all nodes. After this method, it will be as if the chain was just newly
	// created.
	ResetHeaderState(Node)
	// Back returns the end of the chain. If the chain is empty, then this return a pointer to a nil node.
	Back() *Node
	// Front returns the head of the chain. If the chain is empty, then this returns a pointer to a nil node.
	Front() *Node
	// PushBack will push a new entry to the end of the chain. The entry added to the chain is also returned in place.
	PushBack(Node) *Node
}

Chain is an interface that stores a list of Nodes. Each node represents a header in the main chain and also includes a height along with it. This is meant to serve as a replacement to list.List which provides similar functionality, but allows implementations to use custom storage backends and semantics.

type Node

type Node struct {
	// Height is the height of this node within the main chain.
	Height int32
	// Header is the header that this node represents.
	Header wire.BlockHeader
	// contains filtered or unexported fields
}

Node is a node within the Chain. Each node stores a header as well as a height. Nodes can also be used to traverse the chain backwards via their Prev() method.

func (*Node) Prev

func (n *Node) Prev() *Node

Prev attempts to access the prior node within the header chain relative to this node. If this is the start of the chain, then this method will return nil.