Hi Xiaohui,
We just had a discussion about these two if statements. They are dead code and
will be removed from the next release of 4bitle.
Regards
Islam Hegazy
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Sent: Thursday, March 11, 2010 1:00 PM
To: [email protected]
Subject: Tinyos-help Digest, Vol 83, Issue 39
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Today's Topics:
1. update "inquality" in 4bitle (Xiaohui Liu)
----------------------------------------------------------------------
Message: 1
Date: Thu, 11 Mar 2010 13:25:42 -0500
From: Xiaohui Liu <[email protected]>
Subject: [Tinyos-help] update "inquality" in 4bitle
To: Tinyos-Help <[email protected]>
Message-ID:
<[email protected]>
Content-Type: text/plain; charset="iso-8859-1"
Hi everyone,
I was trying to understand the following snippet in 4bitle:
void updateNeighborTableEst(am_addr_t n) {
minPkt = BLQ_PKT_WINDOW;
...
totalPkt = ne->rcvcnt + ne->failcnt;
if (totalPkt < minPkt) {
totalPkt = minPkt;
}
if (totalPkt == 0) {
ne->inquality = (ALPHA * ne->inquality) / 10;
}
...
updateNeighborTableEst() is only called when at least BLQ_PKT_WINDOW of
packets are received, meaning totalPkt is equal to or larger than
BLQ_PKT_WINDOW. Why is it necessary to compare totalPkt with minPkt and
consider the case totalPkt is zero? Thank you for clarification.
--
-Xiaohui Liu
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