epics/pvAccess
0
0
Fork 0
Code Issues Pull Requests Projects Wiki Activity

local multicast reimplemented

Browse Source
This commit is contained in:
Matej Sekoranja
2016-03-01 12:11:25 +01:00
parent 19031af095
commit 1ca3918afa
8 changed files with 260 additions and 146 deletions
Download Patch File Download Diff File Expand all files Collapse all files

18
src/server/responseHandlers.cpp
View File

@@ -266,6 +266,17 @@ void ServerSearchHandler::handleResponse(osiSockAddr* responseFrom,
BlockingUDPTransport::shared_pointer bt = dynamic_pointer_cast<BlockingUDPTransport>(transport);
if (bt && bt->hasLocalMulticastAddress())
{
// RECEIVE_BUFFER_PRE_RESERVE allows to pre-fix message
size_t newStartPos = (startPosition-PVA_MESSAGE_HEADER_SIZE)-PVA_MESSAGE_HEADER_SIZE-16;
payloadBuffer->setPosition(newStartPos);
// copy part of a header, and add: command, payloadSize, NIF address
payloadBuffer->put(payloadBuffer->getArray(), startPosition-PVA_MESSAGE_HEADER_SIZE, PVA_MESSAGE_HEADER_SIZE-5);
payloadBuffer->putByte(CMD_ORIGIN_TAG);
payloadBuffer->putInt(16);
// encode this socket bind address
encodeAsIPv6Address(payloadBuffer, bt->getBindAddress());
// clear unicast flag
payloadBuffer->put(startPosition+4, (int8)(qosCode & ~0x80));
@@ -273,9 +284,12 @@ void ServerSearchHandler::handleResponse(osiSockAddr* responseFrom,
payloadBuffer->setPosition(startPosition+8);
encodeAsIPv6Address(payloadBuffer, &responseAddress);
payloadBuffer->setPosition(payloadBuffer->getLimit()); // send will call flip()
// set to end of a message
payloadBuffer->setPosition(payloadBuffer->getLimit());
bt->send(payloadBuffer->getArray()+newStartPos, payloadBuffer->getPosition()-newStartPos,
bt->getLocalMulticastAddress());
bt->send(payloadBuffer, bt->getLocalMulticastAddress());
return;
}
}