Complete the WinNT 4.0 compatibility as a service and console app, with
  proper handling in the parent and child of close window, ctrl+c/break,
  and logoff/shutdown events, they all work properly.  This will be tested
  shortly on Win2000, where it is expected to work without incident.  Note
  that any console event handler in a child or the service parent
  interfered with these various events, so only the console parent process
  has a console monitor, while the child process always has a console
  (without a handler) to execute 16-bit CGI processes.

  While fighting with this code, added a -z arg in place of the -Z arg for
  the child process to determine that it is a child of a service.  Since
  this change ultimately was unneeded in WinNT, it may go away if it offers
  nothing for the Win9x code path.  Also restructured the service.c file to
  organize by monitors/children/services and group the atexit() routines,
  since it gave me a headache.  Once the 9x flow is working correctly, all
  the various handlers will be documented in service.c, and a new 2.0 patch
  created from the final result.


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/1.3.x@87059 13f79535-47bb-0310-9956-ffa450edef68