New (Daemon constructor)
Create a new Daemon (Daemon class)
New creates a new Daemon object instance. It has two, optional, arguments.
Syntax
%daemon = [%(Daemon):]New[( [CopyGlobals= boolean], [Transactional= boolean], - [OpenAll= boolean])] Throws MaxDaemExceeded, NoFreeDaemons, DaemonLost
Syntax terms
%daemon | A previously defined Daemon object. |
---|---|
%(Daemon) | The optional class name in parentheses denotes a Constructor. See "Usage notes", below, for more information about invoking a Daemon Constructor. |
CopyGlobals | An optional, but NameRequired parameter whose value is a Boolean enumeration.
The default is
If set to True :
|
Transactional | An optional, but NameRequired parameter whose value is a Boolean enumeration.
|
Exceptions
This subroutine can throw the following exceptions:
- NoFreeDaemons
- If there are no daemon threads available to service the object, a NoFreeDaemons exception is thrown. This exception will only be thrown in Sirius Mods Version 7.2 and later.
Usage notes
- As described in "Using New or other Constructors", New can be invoked with no object, with an explicit class name, or with an object variable in the class, even if that object is Null:
%daemon = new %daemon = %(Daemon):new %daemon = %daemon:new
- New not only creates a Daemon object in the user tables, but it also finds a free sdaemon thread and dedicates it to the issuing user. If no sdaemon threads are available, the request is cancelled.
- The number of daemons allowed per master thread is limited by the MAXDAEM system parameter, whose default value is 1.
- If you specify
CopyGlobals=True
, and if there is insufficient server space (say, if daemons start out with very big tables, except for GTBL, and the master has a very big GTBL), the daemon fails during initialization.