<AutomaticEvent variable>.Open (Function)

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<AutomaticEvent variable>.Open (Function)

In french: <Variable SignalAutomatique>.Ouvre

Opens a synchronization event between several threads.

Example

// Création d'un signal
Signal_Allezy is AutomaticEvent(eventClose)
// Exécution d'un premier thread
ThreadExecute("Thread1", threadNormal, "Thread_Premier")
// Bloque le thread en cours jusqu'à l'obtention du signal
ThreadWaitSignal()

// Exécution d'un second thread
ThreadExecute("Thread2", threadNormal, "Thread_Second")
// Bloque le thread en cours jusqu'à l'obtention du signal
ThreadWaitSignal()

// Ouvre le signal pour exécuter les threads
Signal_Allezy.Open()

PROCEDURE Thread_Premier()
Trace(dbgInfo(dbgProcess) + " - ThreadEnvoieSignal(threadPrincipal)")
ThreadSendSignal(threadMain)
Signal_Allezy.Attend()
Trace(dbgInfo(dbgProcess) + " - Signal reçu")

PROCEDURE Thread_Second()
Trace(dbgInfo(dbgProcess) + " - ThreadEnvoieSignal(threadPrincipal)")
ThreadSendSignal(threadMain)
Signal_Allezy.Attend()
Trace(dbgInfo(dbgProcess) + " - Signal reçu")

Syntax

<Event>.Open()

<Event>: AutomaticEvent variable

Name of a variable of type AutomaticEvent to be opened.

Remarks

This function is equivalent to the following syntax of EventChange:
EventChange(<Event>, eventOpen)
Case of an automation signal The signal lets a single thread through.
The event is automatically closed once the thread is processed.
- Waiting threads If no thread was waiting, the signal remains open until the next thread passes, then closes again.
- New threads If more threads arrive, they are put on hold.

Business / UI classification: Neutral code

Component: wd300vm.dll