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https://github.com/FlightControl-Master/MOOSE.git
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15134d7f4e
The references of nillified and garbage collected SCHEDULERS are removed from the _TIMERDISPATCHER. This results now in schedules that are still pending to be executed, but are nillified, that these schedules will never be executed!!! Sven
106 lines
2.7 KiB
Lua
106 lines
2.7 KiB
Lua
--- This module contains the TIMER class.
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--
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-- ===
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--
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-- Takes care of scheduled function dispatching for defined in MOOSE classes.
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--
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-- ===
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--
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-- ===
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--
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-- ### Contributions: -
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-- ### Authors: FlightControl : Design & Programming
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--
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-- @module Timer
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--- The TIMER structure
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-- @type TIMER
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TIMER = {
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ClassName = "TIMER",
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CallID = 0,
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}
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function TIMER:New()
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local self = BASE:Inherit( self, BASE:New() )
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self:F3()
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return self
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end
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--- Add a Schedule to the ScheduleDispatcher.
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-- The development of this method was really tidy.
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-- It is constructed as such that a garbage collection is executed on the weak tables, when the Scheduler is nillified.
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-- Nothing of this code should be modified without testing it thoroughly.
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-- @param #TIMER self
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-- @param Core.Scheduler#SCHEDULER Scheduler
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function TIMER:AddSchedule( Scheduler )
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self:F3( { Scheduler } )
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-- Initialize the Functions array, which is a weakly coupled table.
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-- If the object used as the key is nil, then the garbage collector will remove the item from the Functions array.
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self.Schedulers = self.Schedulers or setmetatable( {}, { __mode = "v" } )
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self.CallID = self.CallID + 1
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self.Schedulers[self.CallID] = Scheduler
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Scheduler:E( { self.CallID, self.Schedulers[self.CallID] } )
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self.Schedule = self.Schedule or setmetatable( {}, { __mode = "v" } )
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self.Schedule[self.CallID] = {}
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self.Schedule[self.CallID].ScheduleStart = Scheduler.StartSeconds + .001
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self.Schedule[self.CallID].ScheduleStart = Scheduler.StartSeconds + .001
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self:E( self.Schedule[self.CallID] )
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self.Schedule[self.CallID].ScheduleCallHandler = function( CallID )
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self:E( CallID )
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local ErrorHandler = function( errmsg )
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env.info( "Error in timer function: " .. errmsg )
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if debug ~= nil then
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env.info( debug.traceback() )
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end
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return errmsg
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end
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local ScheduleFunction = self.Schedulers[CallID].TimeEventFunction
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local ScheduleArguments = self.Schedulers[CallID].TimeEventFunctionArguments
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local ScheduleObject = self.Schedulers[CallID].TimeEventObject
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local Status, Result
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if ScheduleObject then
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local function Timer()
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return ScheduleFunction( ScheduleObject, unpack( ScheduleArguments ) )
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end
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Status, Result = xpcall( Timer, ErrorHandler )
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else
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local function Timer()
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return ScheduleFunction( unpack( ScheduleArguments ) )
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end
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Status, Result = xpcall( Timer, ErrorHandler )
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end
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end
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timer.scheduleFunction(
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self.Schedule[self.CallID].ScheduleCallHandler,
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self.CallID,
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timer.getTime() + 1
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)
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--[[
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self:T( Schedule.FunctionID )
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--]]
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return self.CallID
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end
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function TIMER:RemoveSchedule( CallID )
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self:F( CallID )
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self.Schedulers[CallID] = nil
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end
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