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Support multiple domains in configuration

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Change the structure of the configuration file (in a backwards
compatible manner) to allow specifying configurations for multiple
domains in a file.  (Listing multiple files in CYCLONEDDS_URI was
already supported.)  A configuration specifies an id, with a default of
any, configurations for an incompatible id are ignored.

If the application specifies an id other than DDS_DOMAIN_DEFAULT in the
call to create_participant, then only configuration specifications for
Domain elements with that id or with id "any" will be used.  If the
application does specify DDS_DOMAIN_DEFAULT, then the id will be taken
from the first Domain element that specifies an id.  If none do, the
domain id defaults to 0.  Each applicable domain specification is taken
as a separate source and may override settings made previously.

All settings moved from the top-level CycloneDDS element to the
CycloneDDS/Domain element.  The CycloneDDS/Domain/Id element moved to
become the "id" attribute of CycloneDDS/Domain.  The old locations still
work, with appropriate deprecation warnings.

Signed-off-by: Erik Boasson <eb@ilities.com>
This commit is contained in:
Erik Boasson 2019-08-09 17:12:52 +02:00 • committed by eboasson
parent 70a342991f
commit 891fc2b12f
27 changed files with 1161 additions and 711 deletions
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32
README.md
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@ -186,21 +186,23 @@ point to it. E.g. (on Linux):
$ cat cyclonedds.xml
<CycloneDDS>
<General>
<NetworkInterfaceAddress>auto</NetworkInterfaceAddress>
<AllowMulticast>auto</AllowMulticast>
<MaxMessageSize>65500B</MaxMessageSize>
<FragmentSize>65000B</FragmentSize>
</General>
<Internal>
<Watermarks>
<WhcHigh>500kB</WhcHigh>
</Watermarks>
</Internal>
<Tracing>
<Verbosity>config</Verbosity>
<OutputFile>stdout</OutputFile>
</Tracing>
<Domain id="any">
<General>
<NetworkInterfaceAddress>auto</NetworkInterfaceAddress>
<AllowMulticast>auto</AllowMulticast>
<MaxMessageSize>65500B</MaxMessageSize>
<FragmentSize>4000B</FragmentSize>
</General>
<Internal>
<Watermarks>
<WhcHigh>500kB</WhcHigh>
</Watermarks>
</Internal>
<Tracing>
<Verbosity>config</Verbosity>
<OutputFile>stdout</OutputFile>
</Tracing>
</Domain>
</CycloneDDS>
$ export CYCLONEDDS_URI=file://$PWD/cyclonedds.xml