01-30-2009
Hi,
Thanks for your help.
My parent process just provides me the gui to interact with the child process. Hence I am not bothered about my parent process dying. However I am very much interested in cotrolling my child process through the parent process.
My parent process launches xterm window through which I can communicate with my child process. So when I say interrupt through gdb, the signal is being sent to xterm window. The xterm window is not able to handle the interrupt signal and hence dying. Here I have no control over xterm window or my child process.
Can you suggest me some other solution which can be implemented from parent process or from gdb side?
Thanks once again for the reply.
Regards,
lakshminarayana
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EXIT(2) System Calls Manual EXIT(2)
NAME
exit, _exit - terminate a process
SYNOPSIS
void _exit(int status)
DESCRIPTION
_exit terminates a process with the following consequences:
All of the descriptors open in the calling process are closed. This may entail delays, for example, waiting for output to drain; a
process in this state may not be killed, as it is already dying.
If the parent process of the calling process is executing a wait or is interested in the SIGCHLD signal (Minix-vmd), then it is
notified of the calling process's termination and the low-order eight bits of status are made available to it; see wait(2).
The parent process ID of all of the calling process's existing child processes are also set to 1. This means that the initializa-
tion process (see intro(2)) inherits each of these processes as well.
Most C programs call the library routine exit(3), which performs cleanup actions in the standard I/O library before calling _exit.
RETURN VALUE
This call never returns.
SEE ALSO
fork(2), sigaction(2), wait(2), exit(3).
4th Berkeley Distribution May 22, 1986 EXIT(2)