func New(slotSize, slotCount int) (ringbuffer.RingBuffer, error) {
if slotSize < MinSlotSize {
return nil, ErrSlotSizeTooSmall
}
if slotCount > MaxDataSlots {
return nil, ErrMaxDataSlotsExceeded
}
if !ringbuffer.PowerOfTwo(slotCount) {
return nil, ErrNotPowerOfTwo
}
slotSize += SlotOverhead
d := &byteBuffer{
slotSize: slotSize,
slotCount: slotCount,
slotMask: slotCount - 1,
bufferSize: int64(slotSize * slotCount),
buffer: make([]byte, slotSize*slotCount),
producers: make([]*producer, 0),
consumers: make([]*consumer, 0),
}
return d, nil
}
func NewConsumer(bufferSize int) (ringbuffer.Sequencer, error) {
if !ringbuffer.PowerOfTwo(int(bufferSize)) {
return nil, ErrNotPowerOfTwo
}
s := &Consumer{}
s.cursor = InitialSequenceValue
s.cachedGate = InitialSequenceValue
s.bufferSize = bufferSize
return s, nil
}