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This commit is contained in:
Shivaram Lingamneni 2019-03-11 19:24:45 -04:00
parent 29db70fa7b
commit 63029e2ff5
21 changed files with 420 additions and 226 deletions
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11
irc/utils/bitset.go
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@ -9,17 +9,6 @@ import "sync/atomic"
// For examples of use, see caps.Set and modes.ModeSet; the array has to be converted to a
// slice to use these functions.
// BitsetInitialize initializes a bitset.
func BitsetInitialize(set []uint64) {
// XXX re-zero the bitset using atomic stores. it's unclear whether this is required,
// however, golang issue #5045 suggests that you shouldn't mix atomic operations
// with non-atomic operations (such as the runtime's automatic zero-initialization) on
// the same word
for i := 0; i < len(set); i++ {
atomic.StoreUint64(&set[i], 0)
}
}
// BitsetGet returns whether a given bit of the bitset is set.
func BitsetGet(set []uint64, position uint) bool {
idx := position / 64