-
Notifications
You must be signed in to change notification settings - Fork 276
/
ping.js
41 lines (35 loc) · 1.06 KB
/
ping.js
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
'use strict';
var Message = require('../message');
var inherits = require('util').inherits;
var bitcore = require('bitcore-lib');
var utils = require('../utils');
var $ = bitcore.util.preconditions;
var _ = bitcore.deps._;
var BufferUtil = bitcore.util.buffer;
var BufferReader = bitcore.encoding.BufferReader;
/**
* A message to confirm that a connection is still valid.
* @param {Number} arg - A nonce for the Ping message
* @param {Object=} options
* @extends Message
* @constructor
*/
function PingMessage(arg, options) {
Message.call(this, options);
this.command = 'ping';
$.checkArgument(
_.isUndefined(arg) || (BufferUtil.isBuffer(arg) && arg.length === 8),
'First argument is expected to be an 8 byte buffer'
);
this.nonce = arg || utils.getNonce();
}
inherits(PingMessage, Message);
PingMessage.prototype.setPayload = function(payload) {
var parser = new BufferReader(payload);
this.nonce = parser.read(8);
utils.checkFinished(parser);
};
PingMessage.prototype.getPayload = function() {
return this.nonce;
};
module.exports = PingMessage;