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- Summary table about the operating mode of event
EventChange (Function) In french: SignalModifie Modifies the status of an event.
EventCreate("Allez-y", eventManual, eventClose)
ThreadExecute("Thread1", threadNormal, "Thread_Premier")
ThreadWaitSignal()
ThreadExecute("Thread2", threadNormal, "Thread_Second")
ThreadWaitSignal()
EventChange("Allez-y", eventOpen)
PROCEDURE Thread_Premier()
Trace(dbgInfo(dbgProcess) + " - ThreadEnvoieSignal(threadPrincipal)")
ThreadSendSignal(threadMain)
EventWait("Allez-y")
Trace(dbgInfo(dbgProcess) + " - Signal reçu")
PROCEDURE Thread_Second()
Trace(dbgInfo(dbgProcess) + " - ThreadEnvoieSignal(threadPrincipal)")
ThreadSendSignal(threadMain)
EventWait("Allez-y")
Trace(dbgInfo(dbgProcess) + " - Signal reçu")
Syntax
EventChange(<Event> [, <New status>])
<Event>: Character string Name of the event to modify. If this event does not exist, it is automatically created with the default options (automatic mode) and in the specified status. <New status>: Optional constant Status of the event: | | eventClose | Closes the event. This constant is equivalent to EventClose. | eventOpen (Default value) | Opens the event. If threads are waiting for the event, they are automatically unlocked. This constant is equivalent to EventOpen. | eventOpenAndClose | Opens the event, unlocks all the pending threads and closes the event.
This constant is not recommended. It is kept for backward compatibility. |
Remarks Summary table about the operating mode of event | | | Value of EventChange | Automatic event (by default) | Manual event |
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eventOpen | A single thread is processed by the event. 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. | The event is opened. Waiting threads: All waiting threads pass through. New threads: If other threads arrive while the signal is still open, they pass. | eventOpenAndClose
This constant is not recommended. It is kept for backward compatibility. | A single thread is processed by the event. The event is automatically closed once the thread is processed. Waiting threads If no thread is waiting, the signal remains closed. New threads If more threads arrive, they are put on hold. | All the threads are processed by the event. The event is automatically closed once all the threads are processed. New threads If more threads arrive, they are put on hold. | eventClose | The event remains closed. New threads If more threads arrive, they are put on hold. | The event is closed. New threads If more threads arrive, they are put on hold. |
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