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Stored procedures
ParallelTaskExecuteAfterAll (Function)
In French: TâcheParallèleExécuteAprèsToutes
Indicates a continuation parallel task that will be run when all the tasks found in an array of parallel tasks are ended.
Versions 21 and later
Apple Watch This function is now available in Apple Watch mode.
Universal Windows 10 App This function is now available in Universal Windows 10 App mode.
New in version 21
Apple Watch This function is now available in Apple Watch mode.
Universal Windows 10 App This function is now available in Universal Windows 10 App mode.
Apple Watch This function is now available in Apple Watch mode.
Universal Windows 10 App This function is now available in Universal Windows 10 App mode.
Versions 23 and later
Java This function is now available for the Java applications.
Android Widget This function is now available in Android Widget mode.
Android This function is now available for the Android applications.
New in version 23
Java This function is now available for the Java applications.
Android Widget This function is now available in Android Widget mode.
Android This function is now available for the Android applications.
Java This function is now available for the Java applications.
Android Widget This function is now available in Android Widget mode.
Android This function is now available for the Android applications.
// Starts two tasks
t1 is ParallelTask = ParallelTaskExecute(Proc1)
t2 is ParallelTask = ParallelTaskExecute(Proc2)
// The ContinuationProc procedure will be run when the two tasks are ended
ParallelTaskExecuteAfterAll([t1,t2], ContinuationProc)
Syntax

Indicating a procedure that will be run after all the previous tasks Hide the details

<Result> = ParallelTaskExecuteAfterAll(<Previous Tasks> , <Continuation Procedure> [, <Parameters> [, <Options>]])
<Result>: ParallelTask variable
ParallelTask variable corresponding to the continuation task.
<Previous Tasks>: Array of ParallelTasks
Name of Array of ParallelTask variable containing the previous tasks.
<Continuation Procedure>: Character string or Procedure variable
Procedure to run after the execution of all previous tasks. This parameter corresponds to:
  • the name of the WLanguage procedure to run.
  • the name of Procedure variable corresponding to the procedure to run.
<Parameters>: List of values enclosed in brackets and separated by commas
Parameters of procedure to run. This list of parameters has the following format:
(<Parameter 1>, ..., <Parameter N>)
where:
  • <Parameter 1>: First procedure parameter.
  • ...
  • <Parameter N>: Nth procedure parameter.
The ReturnedValuesPreviousTasks keyword is used to pass the return values of previous tasks in parameter of the continuation procedure, in the order of the tasks found in the array of previous tasks.
<Options>: Optional Integer constant
Options of task to run:
ptoFullCopyHFSQLContextTriggers the immediate copy of current HFSQL context.
Recommended for example if the parallel task must take into account the current positions in the files and queries of caller context.
ptoDelayedCopyHFSQLContext
(Default value)
Triggers a light copy of HFSQL context during the first access to the HFSQL data.
ptoLightCopyHFSQLContextTriggers the immediate copy of part of current HFSQL context.
Only the directories containing the data files in HFSQL Classic mode and/or the connections in HFSQL Client/Server mode are stored.
ptoMainThreadRuns the task in the main thread.

Indicating a described task that will be run after all the previous tasks Hide the details

<Result> = ParallelTaskExecuteAfterAll(<Previous Tasks> , <Continuation Task>)
<Result>: ParallelTask variable
ParallelTask variable corresponding to the continuation task.
<Previous Tasks>: Array of ParallelTasks
Name of Array of ParallelTask variable containing the previous tasks.
<Continuation Task>: ParallelTask variable
Name of ParallelTask variable corresponding to the continuation task.

Describing a task that will be run after all the previous tasks Hide the details

<Result> = ParallelTaskExecuteAfterAll(<Previous Tasks> , <Description of Continuation Task>)
<Result>: ParallelTask variable
ParallelTask variable corresponding to the continuation task.
<Previous Tasks>: Array of ParallelTasks
Name of Array of ParallelTask variable containing the previous tasks.
<Description of Continuation Task>: Description of ParallelTask variable
Name of Description of ParallelTask variable describing the continuation task.
Remarks
  • ParallelTaskExecuteAfterAll is a non-locking function.
  • If the function is called while all the tasks are already ended, the continuation will be run as soon as possible.
  • If the function is called while a task is already canceled, the continuation will not be run.
  • If a previous task is canceled while a continuation was created, the continuation will not be run.
  • In the code of the continuation task, the MyPreviousParallelTasks keyword is used to handle the previous tasks.
Related Examples:
Using parallel tasks Unit examples (WINDEV): Using parallel tasks
[ + ] The parallel tasks are used to speed up the process times and to improve the reactivity of an application.
This example presents the functions and types of variables required to use the parallel tasks:
- running parallel tasks,
- interaction with the controls,
- continuation tasks.
Components
WINDEVWEBDEV - Server codeReports and Queries wd230vm.dll
Java wd230java.jar
Linux wd230vm.so
Android wd230android.jar
Minimum required version
  • Version 20
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