5828f43e52
It is much more convenient to skip source creation. Also fix some bugs: 1. `cryptoSource.Int63()` now returns number in [0, 1<<63) as required by `rand.Source` interface. 2. Replace `cryptoSource.Uint63()` with `cryptoSource.Uint64` to allow generate uint64 numbers directly (see rand.Source64 docs). Signed-off-by: Evgenii Stratonikov <evgeniy@nspcc.ru>
18 lines
391 B
Go
18 lines
391 B
Go
package auditor
|
|
|
|
import (
|
|
"github.com/nspcc-dev/neofs-node/pkg/util/rand"
|
|
)
|
|
|
|
// nextRandUint64 returns random uint64 number [0; n) outside exclude map.
|
|
// Panics if len(exclude) >= n.
|
|
func nextRandUint64(n uint64, exclude map[uint64]struct{}) uint64 {
|
|
ln := uint64(len(exclude))
|
|
ind := rand.Uint64() % (n - ln)
|
|
|
|
for i := ind; ; i++ {
|
|
if _, ok := exclude[i]; !ok {
|
|
return i
|
|
}
|
|
}
|
|
}
|