Using the Shared memory object for writing.
使用共享内存对象写数据。
In Listing 4, you create the Shared memory object using the open_only and read_only attributes.
在清单4中，使用open_only和read_only属性创建共享内存对象。
For a process to use a Shared memory object, the process has to map the object in its address space.
使用共享内存对象的进程必须在自己的地址空间中映射对象。
Another benefit of using mapped_region is that both full and partial access to the Shared memory object is possible.
使用mapped_region的另一个好处是可以对共享内存对象进行完全和部分访问。
Similar to the case for a Shared memory object, a message queue that is opened only for reading will have the open_only attribute passed in the constructor.
与共享内存对象相似，对于以只读方式打开消息队列，应该把open_only属性传递给构造函数。
Similar to the case for a Shared memory object, a message queue that is opened only for reading will have the open_only attribute passed in the constructor.
与共享内存对象相似，对于以只读方式打开消息队列，应该把open_only属性传递给构造函数。
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