<?xml version='1.0'?>
<!-- A Relax NG schema for the libvirt domain checkpoint properties XML format -->
<grammar xmlns='http://relaxng.org/ns/structure/1.0' datatypeLibrary='http://www.w3.org/2001/XMLSchema-datatypes'>
  <start>
    <ref name='domaincheckpoint'/>
  </start>

  <include href='domaincommon.rng'/>

  <define name='domaincheckpoint'>
    <element name='domaincheckpoint'>
      <interleave>
        <optional>
          <element name='name'>
            <ref name='checkpointName'/>
          </element>
        </optional>
        <optional>
          <element name='description'>
            <text/>
          </element>
        </optional>
        <optional>
          <element name='creationTime'>
            <ref name='unsignedLong'/>
          </element>
        </optional>
        <optional>
          <element name='disks'>
            <oneOrMore>
              <ref name='diskcheckpoint'/>
            </oneOrMore>
          </element>
        </optional>
        <optional>
          <!-- Nested grammar ensures that any of our overrides of
               storagecommon/domaincommon defines do not conflict
               with any domain.rng overrides.  -->
          <grammar>
            <include href='domain.rng'/>
          </grammar>
        </optional>
        <optional>
          <element name='parent'>
            <element name='name'>
              <ref name='checkpointName'/>
            </element>
          </element>
        </optional>
      </interleave>
    </element>
  </define>

  <define name='diskcheckpoint'>
    <element name='disk'>
      <attribute name='name'>
        <choice>
          <ref name='diskTarget'/>
          <ref name='absFilePath'/>
        </choice>
      </attribute>
      <choice>
        <attribute name='checkpoint'>
          <value>no</value>
        </attribute>
        <group>
          <optional>
            <attribute name='checkpoint'>
              <value>bitmap</value>
            </attribute>
          </optional>
          <optional>
            <attribute name='bitmap'>
              <text/>
            </attribute>
          </optional>
          <optional>
            <attribute name='size'>
              <ref name='unsignedLong'/>
            </attribute>
          </optional>
        </group>
      </choice>
    </element>
  </define>

  <define name='checkpointName'>
    <data type='string'>
      <!-- Notably: no leading '.' and no embedded '/' or newline -->
      <param name='pattern'>[a-zA-Z0-9_\-][a-zA-Z0-9_\-.]*</param>
    </data>
  </define>

</grammar>
