NewLockedRand returns a new LockedRand instance.

NewProbability returns a new Probability instance, the probability is is expressed a outOfMillion / one million, e.g.

ShuffleStringList shuffles the specified string slice.

String returns a random string with the specified sz length.

LockGuardedRand is a global lock protected random source ready to be used.

LockedRand a mutex protected random source.

Probability is used to represent a random probability.

Source is the interface for returning random Uint64 and Int values.