cvs commit: src/etc rc.subr

[Yar Tikhiy]

yar         2006-12-27 13:15:34 UTC

  FreeBSD src repository

  Modified files:
    etc                  rc.subr 
  Log:
  MFp4:
  
  Implement the checks for required_* objects as two functions, one
  to be run before precmd and the other after it.  They get the current
  rc command as an argument so they can choose what requirement tests
  to perform.  As of now, only "start" needs such tests.
  
  Implement a new requirement variable, required_modules.  It can
  list kernel modules that need to be loaded after start_precmd
  indicated success.  Each name in the list can be just "file", or
  "file:module", or "file~regex".  This will allow us to remove a lot
  of duplicated code from rc.d scripts.
  
  Perform the checks not only for the default start method, but for
  any method.  This allows for more flexibility and fixes a few rc.d
  scripts (namely newsyslog, pf, sendmail) that rely on a required_*
  variable while providing a non-default start method.
  
  To be able to call the new check_required* functions naturally,
  remove lots of crufty duplicated code pieces from run_rc_command
  and replace each of them by a call to the helper function providing
  a single corrected instance of the respective code snippet.  Now
  run_rc_command isn't as scary as it used to be, and it even appears
  to have quite a nice logic that was obscured by the old crufty code.
  
  In the default handler for restart, run start from a subshell to
  protect global varibles, e.g., _postcmd, from modification by the
  start handler.  This enables using restart_postcmd. [x]
  
  PR:             conf/98734 [x]
  Submitted by:   Rick van der Zwet <rick at wzoeterwoude.net> [x]
  Reviewed by:    freebsd-rc (silence for an older version)
  MFC after:      1 month
  
  Revision  Changes    Path
  1.72      +198 -146  src/etc/rc.subr