使用批处理重新启动C ++控制台应用程序不会关闭网络连接

Question

I need to restart my application via code and I choose to use a batch file. When the application starts it creates a batch like this:

taskkill /f /im AudioService.exe
TIMEOUT 10
start "AudioService" "AudioService.exe"

then I call it from the code (using Poco Library ):

Poco::Process::Args args;
Poco::Process::launch(RESTART_SCRIPT_NAME, args);

Now, it works except for the fact that the network connections are not closed and, when the application restart, the Bind() function fails.

Instead, if I run the batch file "by hand" from the Explorer all works as expected: the application and its network connection are killed.

Someone could give me some hint on why this happen?

Answer 1

If an application closes without closing its handles, the OS is responsible for dealing with it. When the OS decides to close handles is up to the OS, not your application, so you may have to wait a little while for it to clean them up.

You may wish to look up what signal handlers are so that your application can ensure it always cleans up nicely