* the parent waits for its child terminaison, but may also happen in special
* cases in the child's exit : when the parent ignores its children SIGCCHLD or
* has the flag SA_NOCLDWAIT. It can also happen when the child is part
* the parent waits for its child terminaison, but may also happen in special
* cases in the child's exit : when the parent ignores its children SIGCCHLD or
* has the flag SA_NOCLDWAIT. It can also happen when the child is part