LOCATOR_FILTER QoS Policy (DDS Extension)

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LOCATOR_FILTER QoS Policy (DDS Extension)

The LocatorFilter QoS Policy is only applicable to the built-in topic for a Publication (see ).

DDS_LocatorFilterQosPolicy
Type	Field Name	Description
DDS_ LocatorFilterSeq	locator_ filters	A sequence of locator filters, described in . There is one locator filter per DataWriter channel. If the length of the sequence is zero, the DataWriter is not using multi-channel.
char *	filter_ name	Name of the filter class used to describe the locator filter expressions. The following two values are supported: DDS_SQLFILTER_NAME DDS_STRINGMATCHFILTER_NAME

DDS_LocatorFilter_t
Type	Field Name	Description
DDS_ LocatorSeq	locators	A sequence of multicast address locators for the locator filter. See .
char *	filter_ expression	A logical expression used to determine if the data will be published in the channel associated with this locator filter. See SQL Filter Expression Notation and STRINGMATCH Filter Expression Notation for information about the expression syntax.

DDS_Locator_t
Type	Field Name	Description
DDS_Long	kind	If the locator kind is DDS_LOCATOR_KIND_UDPv4, the address contains an IPv4 address. The leading 12 octets of the address must be zero. The last 4 octets store the IPv4 address. If the locator kind is DDS_LOCATOR_KIND_UDPv6, the address contains an IPv6 address. IPv6 addresses typically use a shorthand hexadecimal notation that maps one-to-one to the 16 octets of the address. In C#, the locator kinds for UDPv4 and UDPv6 addresses are Locator_t.LOCATOR_KIND_UDPv4 and Locator_t.LOCATOR_KIND_UDPv6.
DDS_Octet [16]	address	The locator address.
DDS_ UnsignedLong	port	The locator port number.

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