| package main | |
| type Sequence [FillCPUCacheLine]int64 | |
| func (this *Sequence) Store(value int64) { | |
| (*this)[SequencePayloadIndex] = value | |
| } | |
| func (this *Sequence) Load() int64 { | |
| return (*this)[SequencePayloadIndex] | |
| } | |
| func NewSequence() *Sequence { | |
| return &Sequence{InitialSequenceValue} | |
| } | |
| const ( | |
| MaxSequenceValue int64 = (1 << 63) - 1 | |
| InitialSequenceValue int64 = -1 | |
| SequencePayloadIndex uint8 = 0 | |
| FillCPUCacheLine uint8 = 8 // FUTURE: use build tags for i386, amd64, and ARM-v4,5,6,7,8 processors | |
| ) |