Scheduler

A simple class to manage jobs with one-off and interval timers all of which can be cancelled. Can be used to create multiple jobs that actually share a single timer which may be helpful on the agent where the number of active timers is limited. This class also allows the user to pass parameters to the callbacks they provide for each job.

To add this library to your model, add the following lines to the top of your agent code:

#require "Scheduler.lib.nut:1.0.0"

Scheduler Usage

This class managers all the jobs and is used mostly for creating new jobs. Each method for creating a job will return the new Job class instance.

Constructor: Scheduler

The constructor for Scheduler takes no parameters.

Example

sch <- Scheduler();

Scheduler Methods

set(_duration, _callback, [...])

Start a new timer to execute the callback after the specified duration. Returns the new job.

Parameter	Type	Required	Default	Description
_duration	float	Yes	N/A	The duration of the timer in seconds
_callback	function	Yes	N/A	The function to run when the timer finishes
...	any	No	N/A	Optional parameters that will be passed to the callback

at(_time, _callback, [...])

Create a new job with a callback to execute at a specified time. The time can either be provided as an integer (do NOT provide a float) representing the number of seconds that have elapsed since midnight on 1 January 1970 OR as a string in the following format: "January 01, 2017 12:30 PM". Returns the new job.

Parameter	Type	Required	Default	Description
_time	integer/string	Yes	N/A	The time when the timer should end
_callback	function	Yes	N/A	The function to run when the timer finishes
...	any	No	N/A	Optional parameters that will be passed to the callback

repeat(_interval, _callback, [...])

Create a new job with a callback that will repeat at the specified interval. Returns the new job.

Parameter	Type	Required	Default	Description
_interval	float	Yes	N/A	The interval between executions of the timer in seconds
_callback	function	Yes	N/A	The function to run when the timer finishes
...	any	No	N/A	Optional parameters that will be passed to the callback

repeat_from(_time, _interval, _callback, [...])

Create a new job with a callback to execute at the specified time as an integer or string (do NOT provide a float) and then repeat at the specified interval after that. Returns the new job.

Parameter	Type	Required	Default	Description
_time	integer/string	Yes	N/A	The time when the timer should end
_interval	float	Yes	N/A	The interval between executions of the timer in seconds
_callback	function	Yes	N/A	The function to run when the timer finishes
...	any	No	N/A	Optional parameters that will be passed to the callback

tzoffset(offset)

Set the offset for the timezone.

Parameter	Type	Required	Default	Description
offset	integer	No	null	The time offset in hours

Scheduler.Job

An instance of this class is created for each new job (timer) created. Any action performed on an existing job will be done using a method on this class.

Example

function myFunc(msg) {
    server.log(msg);
}
sch <- Scheduler();
job1 <- sch.set(5, myFunc, "Timer fired");
job1.cancel();

now()

Immediately execute this job. Returns this.

pause()

Pause the execution of the job's timer. Returns this.

unpause()

Unpause the execution of the job's timer. Returns this.

cancel()

Cancel this job. Returns this.

reset([rstDur])

Reset this job (i.e. restart the timer). Optionally, a different duration to the original can be passed to this method. This can't be used for jobs created with the Scheduler.at() method or during the first timer of jobs created with the Scheduler.repeatFrom() method (can be used for Scheduler.repeatFrom() jobs after they've fired the first time). Returns this.

Parameter	Type	Required	Default	Description
rstDur	float	No	original duration	The optional new timer duration

License

The Scheduler library is licensed under the MIT License.