同时运行两个程序C / C ++

Question

I was reading this article about Inter-Process communication with message passing. In order to run the examples and see the it says and I quote: "should be compiled and run at the same time". Someone has any ideas how exactly should I do this?

Answer 1

You can create BAT file and start both programs almost simultaneously:

START first.exe
START second.exe

Answer 2

"should be compiled and run at the same time"

I think it is clear a program can not be run until after it is compiled (this is a minor grammatical issue, and should be ignored).

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In Linux, my preferred mechanism to launch a process is popen invoked by my C++ program.

In C++, it is easy for one thread (let us call this your start process) to use popen to launch as many processes as needed for your application (call these work processes).

I would then use messages to synchronize the start up (ie work processes should initialize themselves, then wait (at startup) for a go message from start process). These start up messages work in the same way your application would use them. This ensures that the multiple work processes are running at the same time (but within the constraints of how many cores your system has available).