La estructura de datos NVPAIR utilizada por SC_CALLBACK_REG y SC_EVENT sólo se define una vez.
<!— SC_EVENT XML format specification
Copyright 2001-2005 Sun Microsystems, Inc. All rights reserved.
Use is subject to license terms.
The root element of the XML document is intended to be a direct, generic,
translation of the Solaris syseventd message format. It has attributes to
represent the class, subclass, vendor, and publisher, and contains any number of
NVPAIR elements.
ATTRIBUTES:
VERSION: The CRNP protocol version of the message.
CLASS: The sysevent class of the event
SUBCLASS: The subclass of the event
VENDOR: The vendor associated with the event
PUBLISHER: The publisher of the event
CONTENTS:
SUBELEMENTS: NVPAIR (0 or more)
—>
<!ELEMENT SC_EVENT (NVPAIR*)>
<!ATTLIST SC_EVENT
VERSION NMTOKEN #FIXED "1.0"
CLASS CDATA #REQUIRED
SUBCLASS CDATA #REQUIRED
VENDOR CDATA #REQUIRED
PUBLISHER CDATA #REQUIRED
>