how to restart dbus-daemon

[Soho Soho123]

Hi All,

I got the trouble when I try to restart dbus-daemon.
the steps I used :
1. kill  -SIGTERM <dbus daemon pid>
2. dbus-daemon --config-file=/etc/dbus-1/system.conf

in my process,
I use the code to  finish:
system("kill  -SIGTERM <dbus daemon pid>");
system("dbus-daemon --config-file=/etc/dbus-1/system.conf");
it is very strange,
the first step :
system("kill  -SIGTERM <dbus daemon pid>"); ====> it will cause the
parent process receive terminate signal.

Does someone have any idea about this issue?
Because I just send terminate to dbus daemon, the parent process
should keep running,

thanks!

Best Regards,
Soho