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  • 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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  • 原文地址:https://www.cnblogs.com/chevin/p/8086049.html
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