pengines:pengine_property/2

/home/swipl/lib/swipl/library/pengines.pl

swipl
- library

pengine_property(?Pengine, ?Property) is nondet

True when Property is a property of the given Pengine. Enumerates all pengines that are known to the calling Prolog process. Defined properties are:

self(ID): Identifier of the pengine. This is the same as the first argument, and can be used to enumerate all known pengines.
alias(Name): Name is the alias name of the pengine, as provided through the alias option when creating the pengine.
thread(Thread): If the pengine is a local pengine, Thread is the Prolog thread identifier of the pengine.
remote(Server): If the pengine is remote, the URL of the server.
application(Application): Pengine runs the given application
module(Module): Temporary module used for running the Pengine.
destroy(Destroy): Destroy is true if the pengines is destroyed automatically after completing the query.
parent(Queue): Message queue to which the (local) pengine reports.
source(?SourceID, ?Source): Source is the source code with the given SourceID. May be present if the setting debug_info is present.
detached(?Time): Pengine was detached at Time.