xy123321 发表于 2018-9-20 11:33:10

Golang atomic

  原子操作函数
  分为下面系列函数,其中Xxx可以是Int32/Int64/Uint32/Uint64/Uintptr/Pointer其中一种。
  1.SwapXxx系列:交换新旧值;
  

// SwapInt32 atomically stores new into *addr and returns the previous *addr value.  
func SwapInt32(addr *int32, new int32) (old int32)
  

  2.CompareAndSwapXxx系列:比较并交换;
  

// CompareAndSwapInt32 executes the compare-and-swap operation for an int32 value.  
func CompareAndSwapInt32(addr *int32, old, new int32) (swapped bool)
  

  3.AddXxx系列:加减;
  

// AddInt32 atomically adds delta to *addr and returns the new value.  
func AddInt32(addr *int32, delta int32) (new int32)
  

  4.LoadXxx系列:读取;
  

// LoadInt32 atomically loads *addr.  
func LoadInt32(addr *int32) (val int32)
  

  5.StoreXxx系列:保存;
  

// StoreInt32 atomically stores val into *addr.  
func StoreInt32(addr *int32, val int32)
  

  以上。


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