如何在windows中用c / c ++实现hello world共享内存？

Question

Is shared memory stable at the first place?

I prefer this way to inter-process/application communication because that way I don't need the overhead of parsing data.

Is there a good hello world demo on this in c/c++?

Answer 1

You should check out Boost.Interprocess . It provides the functionality you need and the documentation contains instructions on how to use it.

Answer 2

Is shared memory stable at the first place?

Yes.

I prefer this way to inter-process/application communication because that way I don't need the overhead of parsing data.

You may be wrong.

Is there a good hello world demo on this in c/c++?

I that you want something like Managing Memory-Mapped Files .

Answer 3

There are some issues you need to think of when using shared memory:

1. You need to lock accesses to the shared memory so no process attempts to read from it while another process is writing to it to prevent reading a partially updated (inconstant).
2. You need some way to handle corruption of the shared memory. What happens when a program that is writing to the shared memory crashes and leaves the shared memory in corrupt?

Answer 4

It's as stable as your code.

Note that there's no parsing required with any IPC method that supports binary messages,, such as UDP datagrams, message-mode pipes, or mailslots.

Answer 5

如果您正在寻找一个简单的示例， 在 MSDN 的动态链接库中使用共享内存可能是一个很好的起点。