ethereumjs-client › "net/protocol/flowcontrol" › FlowControl

Class: FlowControl

LES flow control manager

memberof module:net/protocol

Hierarchy

• FlowControl

Index

Constructors

• constructor

Properties

• bl
• in
• mrc
• mrr
• out

Methods

• handleReply
• handleRequest
• maxRequestCount

Constructors

constructor

+ new FlowControl(options?: FlowControlOptions): FlowControl

Defined in lib/net/protocol/flowcontrol.ts:32

Parameters:

Name	Type
options?	FlowControlOptions

Returns: FlowControl

Properties

bl

• bl: number

Defined in lib/net/protocol/flowcontrol.ts:28

---

in

• in: Map‹string, FlowParams›

Defined in lib/net/protocol/flowcontrol.ts:32

---

mrc

• mrc: Mrc

Defined in lib/net/protocol/flowcontrol.ts:29

---

mrr

• mrr: number

Defined in lib/net/protocol/flowcontrol.ts:30

---

out

• out: Map‹string, FlowParams›

Defined in lib/net/protocol/flowcontrol.ts:31

Methods

handleReply

▸ handleReply(peer: Peer, bv: number): void

Defined in lib/net/protocol/flowcontrol.ts:50

Process reply message from an LES peer by updating its BLE value

Parameters:

Name	Type	Description
peer	Peer	LES peer
bv	number	latest buffer value

Returns: void

---

handleRequest

▸ handleRequest(peer: Peer, messageName: string, count: number): number

Defined in lib/net/protocol/flowcontrol.ts:90

Calculate new buffer value for an LES peer after an incoming request is processed. If the new value is negative, the peer should be dropped by the caller.

Parameters:

Name	Type	Description
peer	Peer	LES peer
messageName	string	message name
count	number	number of items to request from peer

Returns: number

new buffer value after request is sent (if negative, drop peer)

---

maxRequestCount

▸ maxRequestCount(peer: Peer, messageName: string): number

Defined in lib/net/protocol/flowcontrol.ts:63

Calculate maximum items that can be requested from an LES peer

Parameters:

Name	Type	Description
peer	Peer	LES peer
messageName	string	message name

Returns: number

maximum count