//AddSignal: Updates the counter and signals completion on a channel
func (cms *CMSketch) AddSignal(start_row int64, end_row int64, position int64,
count int64, ch chan int64) {
var h hashes.Hash
for row := start_row; row < end_row; row++ {
h = cms.Hash[row]
cms.Counter.Add(row, h.Apply(position)%cms.Width, count)
}
ch <- 1
}
//PointQuery: query the value at position
func (cms *CMSketch) PointQuery(position int64) int64 {
temp := make([]int64, cms.Depth)
var h hashes.Hash
var i int64
for i = 0; i < cms.Depth; i++ {
h = cms.Hash[i]
temp[i] = cms.Counter.Read(i, h.Apply(position)%cms.Width)
}
mini := temp[0]
for i = 0; i < cms.Depth; i++ {
if mini > temp[i] {
mini = temp[i]
}
}
return mini
}