pools

var DigestBuffers = &sync.Pool{
	New: func() interface{} {
		const bufferCapacity = 32
		b := make([]byte, 0, bufferCapacity)
		return bytes.NewBuffer(b)
	},
}

var EncodingBuffers = &sync.Pool{
	New: func() interface{} {
		const initialBufferCapacity = 1900000 // 1.9MB, from checking capacities at runtime
		b := make([]byte, 0, initialBufferCapacity)
		return bytes.NewBuffer(b)
	},
}

var Hashers = &sync.Pool{
	New: func() interface{} {
		hasher, err := blake2b.New256(nil)
		if err != nil {

			panic("cannot create Blake2b-256 hasher: " + err.Error())
		}
		return hasher
	},
}

var SingleByteBuffers = &sync.Pool{
	New: func() interface{} {
		const bufferLength = 1
		b := make([]byte, bufferLength)
		return bytes.NewBuffer(b)
	},
}