system.py 文件源码

def set_process_name(process_name):
  """
  Renames our current process from "python <args>" to a custom name. This is
  best-effort, not necessarily working on all platforms.

  **Note:** This might have issues on FreeBSD (:trac:`9804`).

  :param str process_name: new name for our process
  """

  # This is mostly based on...
  #
  # http://www.rhinocerus.net/forum/lang-python/569677-setting-program-name-like-0-perl.html#post2272369
  #
  # ... and an adaptation by Jake...
  #
  # https://github.com/ioerror/chameleon
  #
  # A cleaner implementation is available at...
  #
  # https://github.com/cream/libs/blob/b38970e2a6f6d2620724c828808235be0445b799/cream/util/procname.py
  #
  # but I'm not quite clear on their implementation, and it only does targeted
  # argument replacement (ie, replace argv[0], argv[1], etc but with a string
  # the same size).

  _set_argv(process_name)

  if platform.system() == 'Linux':
    _set_prctl_name(process_name)
  elif platform.system() in ('Darwin', 'FreeBSD', 'OpenBSD'):
    _set_proc_title(process_name)