-
-
Notifications
You must be signed in to change notification settings - Fork 154
Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
- Loading branch information
Showing
3 changed files
with
71 additions
and
34 deletions.
There are no files selected for viewing
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,55 +1,64 @@ | ||
| /* | ||
| * Copyright (c) 2013-2015 node-coap contributors. | ||
| * | ||
| * node-coap is licensed under an MIT +no-false-attribs license. | ||
| * All rights not explicitly granted in the MIT license are reserved. | ||
| * See the included LICENSE file for more details. | ||
| */ | ||
| * Copyright (c) 2013-2015 node-coap contributors. | ||
| * | ||
| * node-coap is licensed under an MIT +no-false-attribs license. | ||
| * All rights not explicitly granted in the MIT license are reserved. | ||
| * See the included LICENSE file for more details. | ||
| */ | ||
|
|
||
| // CoAP parameters | ||
| var p = { | ||
| ackTimeout: 2 // seconds | ||
| ackTimeout: 2 // seconds | ||
| , ackRandomFactor: 1.5 | ||
| , maxRetransmit: 4 | ||
| , nstart: 1 | ||
| , defaultLeisure: 5 | ||
| , probingRate: 1 // byte/seconds | ||
|
|
||
| // MAX_LATENCY is the maximum time a datagram is expected to take | ||
| // from the start of its transmission to the completion of its | ||
| // reception. | ||
| , maxLatency: 100 // seconds | ||
|
|
||
| , piggybackReplyMs: 50 | ||
| // default coap port | ||
| , coapPort: 5683 | ||
| // default max packet size | ||
| , maxPacketSize: 1280 | ||
| } | ||
| var defaultTiming = JSON.parse(JSON.stringify(p)) | ||
|
|
||
| // MAX_TRANSMIT_SPAN is the maximum time from the first transmission | ||
| // of a Confirmable message to its last retransmission. | ||
| p.maxTransmitSpan = p.ackTimeout * ((Math.pow(2, p.maxRetransmit)) - 1) * p.ackRandomFactor | ||
| p.refreshTiming = function(values) { | ||
| for (var key in values){ | ||
| if (p[key]) { | ||
| p[key] = values[key] | ||
| } | ||
| } | ||
|
|
||
| // MAX_TRANSMIT_WAIT is the maximum time from the first transmission | ||
| // of a Confirmable message to the time when the sender gives up on | ||
| // receiving an acknowledgement or reset. | ||
| p.maxTransmitWait = p.ackTimeout * (Math.pow(2, p.maxRetransmit + 1) - 1) * p.ackRandomFactor | ||
| // MAX_TRANSMIT_SPAN is the maximum time from the first transmission | ||
| // of a Confirmable message to its last retransmission. | ||
| p.maxTransmitSpan = p.ackTimeout * ((Math.pow(2, p.maxRetransmit)) - 1) * p.ackRandomFactor | ||
|
|
||
| // MAX_TRANSMIT_WAIT is the maximum time from the first transmission | ||
| // of a Confirmable message to the time when the sender gives up on | ||
| // receiving an acknowledgement or reset. | ||
| p.maxTransmitWait = p.ackTimeout * (Math.pow(2, p.maxRetransmit + 1) - 1) * p.ackRandomFactor | ||
|
|
||
| // PROCESSING_DELAY is the time a node takes to turn around a | ||
| // Confirmable message into an acknowledgement. | ||
| p.processingDelay = p.ackTimeout | ||
| // PROCESSING_DELAY is the time a node takes to turn around a | ||
| // Confirmable message into an acknowledgement. | ||
| p.processingDelay = p.ackTimeout | ||
|
|
||
| // MAX_RTT is the maximum round-trip time | ||
| p.maxRTT = 2 * p.maxLatency + p.processingDelay | ||
| // MAX_RTT is the maximum round-trip time | ||
| p.maxRTT = 2 * p.maxLatency + p.processingDelay | ||
|
|
||
| // EXCHANGE_LIFETIME is the time from starting to send a Confirmable | ||
| // message to the time when an acknowledgement is no longer expected, | ||
| // i.e. message layer information about the message exchange can be | ||
| // purged | ||
| p.exchangeLifetime = p.maxTransmitSpan + p.maxRTT | ||
| // EXCHANGE_LIFETIME is the time from starting to send a Confirmable | ||
| // message to the time when an acknowledgement is no longer expected, | ||
| // i.e. message layer information about the message exchange can be | ||
| // purged | ||
| p.exchangeLifetime = p.maxTransmitSpan + p.maxRTT | ||
| } | ||
| p.refreshTiming() | ||
|
|
||
| // default port for CoAP | ||
| p.coapPort = 5683 | ||
|
|
||
| // default max packet size | ||
| p.maxPacketSize = 1280 | ||
| p.defaultTiming = function() { | ||
| p.refreshTiming(defaultTiming) | ||
| } | ||
|
|
||
| module.exports = p |