Visibility failures are created by data RACES - failure to properly synchronize when accessing Shared variables.
可见性故障是由数据争夺引起的—访问共享变量时不能正确同步。
Condition variables allow threads to synchronize to a value of a Shared resource.
条件变量允许线程按照共享资源的一个值同步。
Multiple threads may need to access a Shared database, for instance, or make updates to a set of system variables.
多个执行绪可能需要存取共用资料库，或是对一组系统变数进行更新。
Shared resources include in-memory data such as instance or class variables and external objects such as files, database connections, and network connections.
共享资源包括内存中的数据比如实例或类变量和外部对象比如文件、数据库连接以及网络连接。
Example 8-6 is a second closure example. It demonstrates that private persistent variables like the one used above can be Shared by more than one function.
示例8 - 6是第二个闭包示例。它演示了像上面那样私有保存的值可以被不止一个函数访问到。
Example 8-6 is a second closure example. It demonstrates that private persistent variables like the one used above can be Shared by more than one function.
示例8 - 6是第二个闭包示例。它演示了像上面那样私有保存的值可以被不止一个函数访问到。
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