Static shared memory size 是否可以获取到静态共享内存尺寸
This is great for hosting static content so that different servers don't have to update Shared state.
这样不同的服务器不能够更新同步状态，但映射静态内容的话非常好。
A fixed number of processes can be attached to pkcsslotd, so a static table in Shared memory is used.
固定数量的进程可以被附加到pkcsslotd，因此将使用共享内存中的一个静态表。
Notice too that the Listing 2 version could consist entirely of static methods. No Shared knowledge exists between the methods, so I have less need for encapsulation via scoping.
还要注意清单2版本可以完全由静态方法组成，因此就不太需要通过scoping来封装。
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