Here are the data structures with brief descriptions:

CNANO_MessageBuffer	TODO
CNANO_MessageBufferHeader	TODO
CNANO_OSAPI_FooSerialConnection	A representation of a serial connection for OS "Foo"
CNANO_OSAPI_FooUdpv4Socket	A representation of a BSD-like UDPv4 socket for fictional OS "Foo"
CNANO_Time	A type to represent time-stamps and time durations
CNANO_XRCE_BaseObjectReply	TODO
CNANO_XRCE_BaseObjectRequest	TODO
CNANO_XRCE_ClientKey	TODO
CNANO_XRCE_ClientListener	TODO
CNANO_XRCE_ClientProperties	TODO
CNANO_XRCE_ClientRequestsStorage	TODO
CNANO_XRCE_ClientRequestToken	TODO
CNANO_XRCE_ClientStorage	TODO
CNANO_XRCE_ClientTransport	TODO
CNANO_XRCE_ClientTransportListener	TODO
CNANO_XRCE_Cookie	A canary value to identify XRCE messages on the wire
CNANO_XRCE_CreateArgs	TODO
CNANO_XRCE_DataDeliveryControl	TODO
CNANO_XRCE_DefaultBestEffortStreamStorage	TODO
CNANO_XRCE_DefaultReliableStreamStorage	TODO
CNANO_XRCE_ObjectId	Identifier for implementors of the XRCE protocol
CNANO_XRCE_ReadArgs	TODO
CNANO_XRCE_ReadSpecification	TODO
CNANO_XRCE_RequestArgs	TODO
CNANO_XRCE_RequestId	TODO
CNANO_XRCE_ResultStatus	A data type to convey the outcome of an XRCE operation
CNANO_XRCE_SeqNum	A sequence number type as defined by IETF RFC-1982 with SERIAL_BITS set to 16
CNANO_XRCE_SessionStorage	TODO
CNANO_XRCE_StreamStorage	TODO
CNANO_XRCE_TransportLocator	Basic representation of a transport address
CNANO_XRCE_TransportLocatorLarge	The largest type of transport address
CNANO_XRCE_TransportLocatorMedium	The intermediate type of transport address
CNANO_XRCE_TransportLocatorSmall	The smallest type of transport address
CNANO_XRCE_TransportLocatorString	The most generic type of transport address, which represents the address as a string
CNANO_XRCE_TransportLocatorValue	A union of all possible types of locators
CNANO_XRCE_Udpv4ClientTransport	TODO
CNANO_XRCE_Udpv4ClientTransportProperties	Configuration structure for NANO_XRCE_Udpv4ClientTransport
CNANO_XRCE_VendorId	Identifier for implementors of the XRCE protocol
CNANO_XRCE_Version	A canary value to identify XRCE messages on the wire
CNANO_XRCE_WriteArgs	TODO