NAME

       cosTime - The main module of the cosTime application

DESCRIPTION

       To get access to the record definitions for the structures use:
       -include_lib("cosTime/include/*.hrl").

       This module contains the functions for starting and stopping the application.

       This  application  use  the  time  base 15 october 1582 00:00. Performing operations using
       other time bases will not yield correct result.

       The OMG CosTime specification defines the operation secure_universal_time. As of today  we
       cannot  provide  this  functionality  considering the criteria demanded to fulfill the OMG
       specification.

       When using this application, time and inaccuracy supplied by the user  must  be  given  in
       number of 100 nano seconds. The Time Displacement Factor is positive east of the meridian,
       while those to the west are negative.

       This application use calender:now_to_universal_time(Now)  to  create  a  UTC.  Hence,  the
       underlying OS must deliver a correct result when calling erlang:now().

       When  determining  the inaccuracy of the system, the user should consider the way the time
       objects will be used. Communicating with other  ORB's,  add  a  substantial  overhead  and
       should be taken into consideration.

EXPORTS

       install_time() -> Return

              Types:

                 Return = ok | {'EXIT', Reason}

              This operation installs the cosTime Time Service part application.

       uninstall_time() -> Return

              Types:

                 Return = ok | {'EXIT', Reason}

              This operation uninstalls the cosTime Time Service part application.

       install_timerevent() -> Return

              Types:

                 Return = ok | {'EXIT', Reason}

              This operation installs the cosTime Timer Event Service part application.

          Note:
              The  Timer  Event  Service  part  requires  Time  Service  part and cosEvent or the
              cosNotification application to be installed first.

       uninstall_timerevent() -> Return

              Types:

                 Return = ok | {'EXIT', Reason}

              This operation uninstalls the cosTime Timer Event Service part application.

       start() -> Return

              Types:

                 Return = ok | {error, Reason}

              This operation starts the cosTime application.

       stop() -> Return

              Types:

                 Return = ok | {error, Reason}

              This operation stops the cosTime application.

       start_time_service(Tdf, Inaccuracy) -> Return

              Types:

                 Tdf = short()
                 Inaccuracy = ulonglong(), eq. #100 nano seconds
                 Return = ok | {'EXCEPTION', #'BAD_PARAM'{}}

              This operation starts a Time Service server. Please note that  there  may  only  be
              exactly  one  Time  Service  active at a time. The Inaccuracy parameter defines the
              inaccuracy the underlying OS will introduce. Remember to take into account  latency
              when passing time object between nodes.

       stop_time_service(TimeService) -> ok

              Types:

                 TimeService = #objref

              This operation stops the Time Service object.

       start_timerevent_service(TimeService) -> ok

              Types:

                 TimeService = #objref

              This operation starts a Timer Event Service server. Please note that there may only
              be exactly one Timer Event  Service  per  node  active  at  a  time.  The  supplied
              TimeServcie reference will be the object Timer Event Service contacts to get access
              to a new UTC.

       stop_timerevent_service(TimerEventService) -> ok

              Types:

                 TimerEventService = #objref

              This operation stops the Timer Event Service object.