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RTI Connext C API Version 7.3.0
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Type representing a list of multicast mapping elements. More...
Data Fields | |
| char * | addresses |
| A string containing a comma-separated list of IP addresses or IP address ranges to be used to receive multicast traffic for the entity with a topic that matches the DDS_TransportMulticastMapping_t::topic_expression. More... | |
| char * | topic_expression |
| A regular expression that will be used to map topic names to corresponding multicast receive addresses. More... | |
| struct DDS_TransportMulticastMappingFunction_t | mapping_function |
| Specifies a function that will define the mapping between a topic name and a specific multicast address from a list of addresses. More... | |
Type representing a list of multicast mapping elements.
A multicast mapping element specifies a string containing a list of IP addresses, a topic expression and a mapping function.
| char* DDS_TransportMulticastMapping_t::addresses |
A string containing a comma-separated list of IP addresses or IP address ranges to be used to receive multicast traffic for the entity with a topic that matches the DDS_TransportMulticastMapping_t::topic_expression.
The string must contain IPv4 or IPv6 addresses separated by commas. For example: "239.255.100.1,239.255.100.2,239.255.100.3"
You may specify ranges of addresses by enclosing the start address and the end address in square brackets. For example: "[239.255.100.1,239.255.100.3]"
You may combine the two approaches. For example:
"239.255.200.1,[239.255.100.1,239.255.100.3], 239.255.200.3"
IPv4 addresses must be specified in Dot-decimal notation.
IPv6 addresses must be specified using 8 groups of 16-bit hexadecimal values separated by colons. For example: FF00:0000:0000:0000:0202:B3FF:FE1E:8329
Leading zeroes can be skipped. For example: "FF00:0:0:0:202:B3FF:FE1E:8329"
You may replace a consecutive number of zeroes with a double colon, but only once within an address. For example: "FF00::202:B3FF:FE1E:8329"
[default] NULL
| char* DDS_TransportMulticastMapping_t::topic_expression |
A regular expression that will be used to map topic names to corresponding multicast receive addresses.
A topic name must match the expression before a corresponding address is assigned.
[default] NULL
| struct DDS_TransportMulticastMappingFunction_t DDS_TransportMulticastMapping_t::mapping_function |
Specifies a function that will define the mapping between a topic name and a specific multicast address from a list of addresses.
This function is optional. If not specified, the middleware will use a hash function to perform the mapping.