CODEWITHSUNDEEP
delphic++builderindy
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Reputation: 2736

What is IdThreadComponent Loop property?

I expected that by using Loop property I can define if OnRun event method is repeatedly executed, but regardless, it is always repeating until I call method Terminate. Am I missing the point of this property or there is a bug in the IdThreadComponent component?

Upvotes: 0

Views: 972

Answers (1)

Remy Lebeau
Remy Lebeau

Reputation: 597036

Internally, TIdThreadComponent runs a TIdThread, which actually has 2 loops in its Execute() method:

  • An outer loop is a usual while not Terminated loop.

  • Inside of that loop, it first checks if the Stop() method has been called to suspend the thread, and then (after waking up if stopped) it checks Loop to determine whether the Run() method should be called one time or in a loop.

So, the Loop property does not really have much effect in TIdThreadComponent, because of the outer while not Terminated loop. All it really does is helps you control how often the thread checks its Stopped property to know when go to sleep, if ever.

The Loop logic is primarily meant for use by TIdTCPServer instead, to control whether its OnExecute event is fired one time or repeatedly for each accepted client connection.

Upvotes: 2

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