In addition to the facilities listed below, there are also some procedures that provide commonly needed constructors and destructors for services Service De- and Constructors.
Register all services, so that they can be taken into account when trying to resolve dependencies.
Return a list of all registered services which provide the symbol name.
This macro is used to create a value for the
actions slot of a
service object Slots of services. Each name is a symbol
and each proc the corresponding procedure that will be called to
perform the action. A proc has one argument, which will be the
current value of the
running slot of the service.
Start a registered service providing obj.
Stop a registered service providing obj.
The same as the
action method of class
uses a service that provides obj and is running.
Call proc, a procedure taking one argument, once for each registered service.
Check if any of services is running. If this is the case,
return its canonical name. If not, return
#f. Only the first
one will be returned; this is because this is mainly intended to be
applied on the return value of