6917f6d468
blockingUDPTransport.*: implementation - work in progress remote.h: added file inetAddressUtil.*: added 'inetAddressToString' function and fixed 'getSocketAddressList' declaration. inetAddressUtilsTest.c: using the new function. Makefile: added remote.h
94 lines
2.5 KiB
C++
94 lines
2.5 KiB
C++
/*
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* blockingUDPTransport.cpp
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*
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* Created on: Dec 20, 2010
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* Author: Miha Vitorovic
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*/
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/* pvAccess */
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#include "blockingUDPTransport.h"
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#include "caConstants.h"
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#include "inetAddressUtil.h"
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/* pvData */
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#include <byteBuffer.h>
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/* EPICSv3 */
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#include <osdSock.h>
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#include <osiSock.h>
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#include <errlog.h>
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/* standard */
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#include <cstdio>
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namespace epics {
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namespace pvAccess {
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using namespace epics::pvData;
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BlockingUDPTransport::BlockingUDPTransport(SOCKET channel,
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osiSockAddr* bindAddress, osiSockAddr* sendAddresses,
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short remoteTransportRevision) {
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this->channel = channel;
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this->bindAddress = bindAddress;
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this->sendAddresses = sendAddresses;
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socketAddress = bindAddress;
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// allocate receive buffer
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receiveBuffer = new ByteBuffer(MAX_UDP_RECV);
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// allocate send buffer and non-reentrant lock
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sendBuffer = new ByteBuffer(MAX_UDP_SEND);
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ignoredAddresses = NULL;
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sendTo = NULL;
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closed = false;
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lastMessageStartPosition = 0;
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}
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BlockingUDPTransport::~BlockingUDPTransport() {
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delete receiveBuffer;
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delete sendBuffer;
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}
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void BlockingUDPTransport::start() {
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// TODO implement
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}
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void BlockingUDPTransport::close(bool forced) {
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if(closed) return;
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closed = true;
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if(bindAddress!=NULL) errlogSevPrintf(errlogInfo,
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"UDP connection to %s closed.", inetAddressToString(
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bindAddress).c_str());
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// TODO: finish implementation
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}
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void BlockingUDPTransport::enqueueSendRequest(TransportSender* sender) {
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// TODO implement
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}
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void BlockingUDPTransport::startMessage(int8 command,
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int ensureCapacity) {
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lastMessageStartPosition = sendBuffer->getPosition();
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sendBuffer->putShort(CA_MAGIC_AND_VERSION);
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sendBuffer->putByte(0); // data
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sendBuffer->putByte(command); // command
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sendBuffer->putInt(0); // temporary zero payload
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}
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void BlockingUDPTransport::endMessage() {
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int32 data = lastMessageStartPosition+(16/8+2);
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sendBuffer->put((char*)&data, sendBuffer->getPosition()
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-lastMessageStartPosition-CA_MESSAGE_HEADER_SIZE,
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sizeof(int32));
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}
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}
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}
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