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How to make child process die after parent exits?
When a parent process dies (for any reason) the child’s parent process becomes process 1. If the child simply polls periodically, it can check if its parent is 1. If it is, the child should exit.
When to return the exit status of a child process?
It is known that fork () system call is used to create a new process which becomes child of the caller process. Upon exit, the child leaves an exit status that should be returned to the parent.
What happens when a process ends via exit?
When a process ends via exit, all of the memory and resources associated with it are deallocated so they can be used by other processes. However, the process’s entry in the process table remains. The parent can read the child’s exit status by executing the wait system call, whereupon the zombie is removed.
What happens when a process loses its parent?
If the parent process still refuses to reap the zombie, and if it would be fine to terminate the parent process, the next step can be to remove the parent process. When a process loses its parent, init becomes its new parent. init periodically executes the wait system call to reap any zombies with init as parent.
How do I automatically destroy my child processes?
One somewhat hackish solution would be for the parent process to attach to each child as a debugger (use DebugActiveProcess ). When a debugger terminates all its debuggee processes are terminated as well.
What happens when a parent of an adult dies?
When a parent of an adult dies, there is almost an unspoken expectation that it will not hit you head on. An adult is expected to accept death as a part of life, to handle all sudden losses in an appropriate adult manner. But really, what does that mean?
How to prepare for the death of a parent?
While it’s hard to prepare yourself emotionally, there are steps you can take to manage the practical issues a bit more easily. Finances, for one, can feel like a maze of paperwork, digital records, passwords and perhaps even shoeboxes.