problem when the script is scheduled to run as cron job Post: 302127465

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ns_cancel

ns_sched(3aolserver)					    AOLserver Built-In Commands 				      ns_sched(3aolserver)

__________________________________________________________________________________________________________________________________________________

NAME

       ns_after, ns_cancel, ns_pause, ns_resume, ns_schedule_daily, ns_schedule_proc, ns_schedule_weekly, ns_unschedule_proc - commands

SYNOPSIS

       ns_after seconds {script | procname ?args?}

       ns_cancel id

       ns_pause id

       ns_resume id

       ns_schedule_daily ?-thread? ?-once? hour minute {script | procname ?args?}

       ns_schedule_proc ?-thread? ?-once? interval {script | procname ?args?}

       ns_schedule_weekly ?-thread? ?-once? day hour minute {script | procname ?args?}

       ns_unschedule_proc id
_________________________________________________________________

DESCRIPTION

       ns_after
	      run the specified script or procedure  after the specified number of seconds

	      ns_after returns an id which can be used with the ns_pause, ns_cancel and ns_resume apis.

       ns_cancel
	      stops the scheduled running of the id returned by an ns_after

	      returns 1 if unscheduled 0 if the script of procedure couldn't be unscheduled

       ns_pause
	      pauses the scheduled running of the id returned by an ns_after

	      returns 1 if paused, 0 if the script of procedure couldn't be paused

       ns_resume
	      resumes the scheduled running of the id returned by an ns_after

	      returns 1 if resumed, 0 if the script of procedure couldn't be resumed

       ns_schedule_daily
	      ns_schedule_daily  runs  the  specified  Tcl script or procedure (procname) once a day at the time specified by hour and minute. The
	      hour can be from 0 to 23, and the minute can be from 0 to 59.

	      Specify -thread if you want a thread created to run the procedure. This will allow the scheduler to continue  with  other  scheduled
	      procedures.  Specifying  -thread	is appropriate in situations where the script will not return immediately, such as when the script
	      performs network activity.

	      Specify -once if you want the script to run only one time. The default is that the script will be re-scheduled after each time it is
	      run.

	      ns_schedule_daily  returns  an id number for the scheduled procedure that is needed to stop the scheduled procedure with ns_unsched-
	      ule_proc.

       ns_schedule_proc
	      ns_schedule_proc runs the specified Tcl script or procedure (procname) at an interval specified by interval.  The  interval  is  the
	      number of seconds between runs of the script.

	      Specify  -thread	if  you want a thread created to run the procedure. This will allow the scheduler to continue with other scheduled
	      procedures. Specifying -thread is appropriate in situations where the script will not return immediately, such as  when  the  script
	      performs network activity.

	      Specify -once if you want the script to run only one time. The default is that the script will be re-scheduled after each time it is
	      run.

	      ns_schedule_proc returns an id number for the scheduled procedure that is needed to stop the scheduled  procedure  with  ns_unsched-
	      ule_proc.

       ns_schedule_weekly
	      ns_schedule_weekly runs the specified Tcl script or procedure (procname) once a week on the day specified by day and the time speci-
	      fied by hour and minute. The day can be from 0 to 6, where 0 represents Sunday. The hour can be from 0 to 23, and the minute can	be
	      from 0 to 59.

	      Specify  -thread	if  you want a thread created to run the procedure. This will allow the scheduler to continue with other scheduled
	      procedures. Specifying -thread is appropriate in situations where the script will not return immediately, such as  when  the  script
	      performs network activity.

	      Specify -once if you want the script to run only one time. The default is that the script will be re-scheduled after each time it is
	      run.

	      ns_schedule_weekly returns an id number for the scheduled procedure that is needed to stop the scheduled procedure with  ns_unsched-
	      ule_proc.

       ns_unschedule_proc id
	      ns_unschedule_proc  stops  a  scheduled procedure from executing anymore. The scheduled procedure to be stopped is identified by its
	      id, which was returned by the ns_schedule* function that was used to schedule the procedure.

EXAMPLES

       ns_after ns_cancel ns_pause ns_resume
	      This example illustrates a web interface used to manage jobs. Depending on the action provided a	job  can  be  created,	cancelled,
	      paused or resumed.

	      set action [ns_queryget action] set job [ns_queryget job] switch $action {
		  create {
		      set job [ns_after 10 [ns_queryget script]]
		      ns_puts "Job created with id: $job"
		  }
		  cancel {
		      if {[ns_cancel $job]} {
			  ns_puts "Job $job cancelled"
		      } else {
			  ns_puts "Job $job not cancelled"
		      }
		  }
		  pause {
		      if {[ns_pause $job]} {
			  ns_puts "Job $job paused"
		      } else {
			  ns_puts "Job $job not paused
		      }
		  }
		  resume {
		      if {[ns_resume $job]} {
			  ns_puts "Job $job resumed"
		      } else {
			  ns_puts "Job $job couldn't be resumed"
		      }
		  }
		  default {
		      ns_puts "Invalid action $action"
		  } }

       ns_schedule_daily
	      This  example  defines  a script called rolllog that uses ns_accesslog to roll the access log to a file with an extension containing
	      the current date. The ns_schedule_daily function is used to execute the rolllog script on a daily basis.

	      # Script to roll and rcp log file to host "grinder" proc rolllog {} {
		  set suffix [ns_strftime "%y-%m-%d"]
		  set new [ns_accesslog file].$suffix
		  ns_accesslog roll $new
		  exec rcp $new grinder:/logs/[file tail $new] } # Schedule "rolllog" to run at 3:30 am each morning ns_schedule_daily	-thread  3
	      30 rolllog

       ns_schedule_proc proc dosomething blah {
	   ns_log Notice "proc with arg '$blah'" } ns_schedule_proc 10 dosomething $arg1

SEE ALSO

KEYWORDS

       schedule pause resume unschedule cancel after

AOLserver								4.0						      ns_sched(3aolserver)

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