Commits on Dec 9, 2024

1. erts: Add BIFs processes_iterator/0 and processes_next/1 …

   This PR adds 2 BIFs to the `erlang` module.
   
   `processes_iterator/0` returns a process iterator that can be used to
   iterate through the process table.
   
   `process_next/1` takes in a process iterator and returns a 2-tuple,
   consisting of one process identifier and a new process iterator. If the
   process iterator runs out of processes in the process table, `none`
   will be returned.
   
   By using these 2 BIFs instead of `processes/0`, one can avoid creating
   a potentially huge list of the pids for all existing processes, at the
   cost of less consistency guarantees. Process identifiers returned from
   consecutive calls of `process_next/1` may not be a consistent snapshot
   of all elements existing in the table during any of the calls. The
   process identifier of a process that is alive before
   `processes_iterator/0` is called and continues to be alive until
   `processes_next/1` returns `none` is guaranteed to be part of the
   result returned from one of the calls to `processes_next/1`.

   

   lucioleKi committed Dec 9, 2024
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