AmDaemon (Daemon property)

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Is the current thread controlled by a Daemon? (Daemon class)

AmDaemon returns a Boolean enumeration to indicate whether AmDaemon was issued on a daemon thread associated with a Daemon object.


%boolean = %(Daemon):AmDaemon

Syntax terms

%boolean An enumeration object of type Boolean to contain the returned value of AmDaemon. AmDaemon returns True if issued on a Daemon-associated thread; otherwise it returns False.
%(Daemon) The class name in parentheses denotes a shared method. AmDaemon can also be invoked via a Daemon object variable, which may be Null.

Usage notes

  • Since a daemon thread can run web requests, socket server requests, and $CommndL requests, AmDaemon distinguishes a daemon thread that is working for a Daemon object from, say, a daemon thread running a web request. This distinction is particularly important for certain methods, such as ReturnToMaster or ReturnObject, that can only be issued on a thread associated with a Daemon object.
  • If a daemon thread was spawned by RunIndependently, AmDaemon returns False since the daemon thread has no returnable objects.

See also