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refactor rehash to rely more on server.config

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This commit is contained in:
Shivaram Lingamneni 2018-07-16 03:46:40 -04:00
parent 1a5db02236
commit 1383190249
11 changed files with 135 additions and 233 deletions
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8
irc/utils/bitset.go
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@ -52,11 +52,9 @@ func BitsetSet(set []uint64, position uint, on bool) (changed bool) {
}
// BitsetEmpty returns whether the bitset is empty.
// Right now, this is technically free of race conditions because we don't
// have a method that can simultaneously modify two bits separated by a word boundary
// such that one of those modifications is an unset. If we did, there would be a race
// that could produce false positives. It's probably better to assume that they are
// already possible under concurrent modification (which is not how we're using this).
// This has false positives under concurrent modification (i.e., it can return true
// even though w.r.t. the sequence of atomic modifications, there was no point at
// which the bitset was completely empty), but that's not how we're using this method.
func BitsetEmpty(set []uint64) (empty bool) {
for i := 0; i < len(set); i++ {
if atomic.LoadUint64(&set[i]) != 0 {