counter.Open()
	opened = true
}

// ReadCounter reads the given counter.
func ReadCounter(c *counter.Counter) (count uint64, _ error) {
	return ic.Read(c)
}

// ReadStackCounter reads the given StackCounter.
func ReadStackCounter(c *counter.StackCounter) (stackCounts map[string]uint64, _ error) {
	return ic.ReadStack(c)
}

// ReadFile reads the counters and stack counters from the given file.