Example: Multiprocess Breakpoint

The following partial program illustrates the different points at which you can set breakpoints in a multiprocess program:

1    pid = fork();
2    if (pid == -1)
3        error ("fork failed");
4    else if (pid == 0)
5        children_play();
6    else
7        parents_work();

The following table shows the results of setting a breakpoint at different places.

Line Number	Result
1	Stops the parent process before it forks.
2	Stops both the parent and child processes (if the child process was successfully created).
3	Stops the parent process if fork() failed.
5	Stops the child process.
7	Stops the parent process.