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authorGerrit Renker <gerrit@erg.abdn.ac.uk>2010-09-19 20:10:52 +0200
committerGerrit Renker <gerrit@erg.abdn.ac.uk>2010-09-21 12:14:26 +0200
commit792e6d3389061ad449429b9ba228eb758c247ea0 (patch)
tree31a238fb2fc28e465e95b7d98b5e0698461cdadf /net/dccp/ccids/ccid3.h
parent80763dfbac4ed1e6dfe6ec08ef748e0e9aec3260 (diff)
downloadlinux-792e6d3389061ad449429b9ba228eb758c247ea0.tar.bz2
dccp tfrc/ccid-3: computing the loss rate from the Loss Event Rate
This adds a function to take care of the following, separate cases occurring in the computation of the Loss Rate p: * 1/(2^32-1) is mapped into 0% as per RFC 4342, 8.5; * 1/0 is mapped into 100%, the maximum; * to avoid that p = 1/x is rounded down to 0 when x is very large, since this means accidentally re-entering slow-start indicated by p == 0, the minimum resolution value of p is now returned instead; * a bug in ccid3_hc_rx_getsockopt is fixed: 1/0 was mapped into ~0U. Signed-off-by: Gerrit Renker <gerrit@erg.abdn.ac.uk>
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