该操作是读-修改-写操作。

The operation is read-modify-write operation.

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许多并发算法中都显示了原子的读-修改-写组合。

The atomic read-modify-write combination shows up in many concurrent algorithms.

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清单 2 中的代码实现了简单的互斥， acquire() 方法也是原子的读-修改-写操作。

The code in Listing 2 implements a simple mutex, and the acquire() method is also an atomic read-modify-write operation.

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