On Sat, Sep 05, 2015 at 08:52:39PM +0100, Edward Bartolo wrote: > Quote: <<An 'orphaned process' is one whose parent has exited after creating a > process (that's done via fork and not via execve) and it's not adopted > by the grand parent but by init.>> > > So what is the difference between an "orphaned process", i.e. a > process whose parent has exited after giving birth to a child process > and one which replaces the original process effectively giving its > parent a death sentence?
??????? I think there is here some confusion about process creation. Upon a fork() the process calling it (the parent) is effectively *copyed* into a new process (the child). The child is an (almost, up to few details) *exact* copy of the parent, including the program page (the code). Hence, by calling execve in the child you are not "giving its parent a death sentence" but you are simply replacing the progam page (the code) of the child process. The parent is unaffected by such a call, because it does not occur in its process space. I warmly suggest you to have a look to something like "The Linux Programming Interface": http://man7.org/tlpi/ Incidentally, the pdf of the chapter related to process creation is available for download: http://man7.org/tlpi/download/TLPI-24-Process_Creation.pdf My2cents KatolaZ -- [ Enzo Nicosia aka KatolaZ --- GLUG Catania -- Freaknet Medialab ] [ me [at] katolaz.homeunix.net -- http://katolaz.homeunix.net -- ] [ GNU/Linux User:#325780/ICQ UIN: #258332181/GPG key ID 0B5F062F ] [ Fingerprint: 8E59 D6AA 445E FDB4 A153 3D5A 5F20 B3AE 0B5F 062F ] _______________________________________________ Dng mailing list Dng@lists.dyne.org https://mailinglists.dyne.org/cgi-bin/mailman/listinfo/dng
