When I say memory , I mean when make starts then in the main function I have the getpid to give me the parent pid which I save in the env and that is available to all the child processes so that I can find out when the parent make has come into child handler by checking getpid == make pid from env and do some stuff based on it.
On Sun, 22 May 2022 at 6:52 PM, Paul Smith <psm...@gnu.org> wrote: > On Sun, 2022-05-22 at 10:53 +0530, nikhil jain wrote: > > 1) write some content in a file only if the forked process ID is same > > as the main make process ID (stored main process ID in the memory as > > make starts so that it will be available to all the forked process). > > I don't understand this. Yes, make will fork a new process but then it > immediately does an exec, including when invoking a sub-make, so no > memory is shared between make processes. >
