Cygwin fork implementation

[Sudhahar <jsudha80 at gmail dot com>]

Hi,
   In Cygwin fork code the statement

int res = setjmp (grouped.ch.jmp);
  if (res)
    res = fork_child (grouped.ch.parent, grouped.first_dll, grouped.load_dlls);
  else
    res = fork_parent (grouped.ch.parent, grouped.first_dll,
grouped.load_dlls, esp, grouped.ch);

avoids the fork being called repeatedly by the created process of
parent. Can anyone tell me how this actually happens. Thanks in
advance for your time and comments.

Thanks
Sudhakar

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