fsfw/osal/common/UdpTcPollingTask.cpp

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#include "UdpTcPollingTask.h"
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#include "tcpipHelpers.h"
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#include "../../globalfunctions/arrayprinter.h"
#include "../../serviceinterface/ServiceInterfaceStream.h"
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#ifdef _WIN32
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#include <winsock2.h>
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#else
#include <sys/types.h>
#include <sys/socket.h>
#endif
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//! Debugging preprocessor define.
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#define FSFW_UDP_RCV_WIRETAPPING_ENABLED 0
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UdpTcPollingTask::UdpTcPollingTask(object_id_t objectId,
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object_id_t tmtcUnixUdpBridge, size_t frameSize,
double timeoutSeconds): SystemObject(objectId),
tmtcBridgeId(tmtcUnixUdpBridge) {
if(frameSize > 0) {
this->frameSize = frameSize;
}
else {
this->frameSize = DEFAULT_MAX_FRAME_SIZE;
}
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/* Set up reception buffer with specified frame size.
For now, it is assumed that only one frame is held in the buffer! */
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receptionBuffer.reserve(this->frameSize);
receptionBuffer.resize(this->frameSize);
if(timeoutSeconds == -1) {
receptionTimeout = DEFAULT_TIMEOUT;
}
else {
receptionTimeout = timevalOperations::toTimeval(timeoutSeconds);
}
}
UdpTcPollingTask::~UdpTcPollingTask() {}
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ReturnValue_t UdpTcPollingTask::performOperation(uint8_t opCode) {
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/* Sender Address is cached here. */
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struct sockaddr senderAddress;
socklen_t senderAddressSize = sizeof(senderAddress);
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/* Poll for new UDP datagrams in permanent loop. */
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while(true) {
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int bytesReceived = recvfrom(
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this->serverSocket,
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reinterpret_cast<char*>(receptionBuffer.data()),
frameSize,
receptionFlags,
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&senderAddress,
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&senderAddressSize
);
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if(bytesReceived == SOCKET_ERROR) {
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/* Handle error */
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#if FSFW_CPP_OSTREAM_ENABLED == 1
sif::error << "UdpTcPollingTask::performOperation: Reception error." << std::endl;
#endif
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tcpip::handleError(tcpip::Protocol::UDP, tcpip::ErrorSources::RECVFROM_CALL, 1000);
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continue;
}
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#if FSFW_CPP_OSTREAM_ENABLED == 1 && FSFW_UDP_RCV_WIRETAPPING_ENABLED == 1
sif::debug << "UdpTcPollingTask::performOperation: " << bytesReceived <<
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" bytes received" << std::endl;
#endif
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ReturnValue_t result = handleSuccessfullTcRead(bytesReceived);
if(result != HasReturnvaluesIF::RETURN_FAILED) {
}
tmtcBridge->checkAndSetClientAddress(senderAddress);
}
return HasReturnvaluesIF::RETURN_OK;
}
ReturnValue_t UdpTcPollingTask::handleSuccessfullTcRead(size_t bytesRead) {
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store_address_t storeId;
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#if FSFW_UDP_RCV_WIRETAPPING_ENABLED == 1
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arrayprinter::print(receptionBuffer.data(), bytesRead);
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#endif
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ReturnValue_t result = tcStore->addData(&storeId, receptionBuffer.data(), bytesRead);
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if (result != HasReturnvaluesIF::RETURN_OK) {
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#if FSFW_VERBOSE_LEVEL >= 1
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#if FSFW_CPP_OSTREAM_ENABLED == 1
sif::warning<< "UdpTcPollingTask::transferPusToSoftwareBus: Data storage failed." <<
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std::endl;
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sif::warning << "Packet size: " << bytesRead << std::endl;
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#endif /* FSFW_CPP_OSTREAM_ENABLED == 1 */
#endif /* FSFW_VERBOSE_LEVEL >= 1 */
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return HasReturnvaluesIF::RETURN_FAILED;
}
TmTcMessage message(storeId);
result = MessageQueueSenderIF::sendMessage(targetTcDestination, &message);
if (result != HasReturnvaluesIF::RETURN_OK) {
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#if FSFW_VERBOSE_LEVEL >= 1
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#if FSFW_CPP_OSTREAM_ENABLED == 1
sif::warning << "UdpTcPollingTask::handleSuccessfullTcRead: "
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" Sending message to queue failed" << std::endl;
#endif /* FSFW_CPP_OSTREAM_ENABLED == 1 */
#endif /* FSFW_VERBOSE_LEVEL >= 1 */
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tcStore->deleteData(storeId);
}
return result;
}
ReturnValue_t UdpTcPollingTask::initialize() {
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tcStore = objectManager->get<StorageManagerIF>(objects::TC_STORE);
if (tcStore == nullptr) {
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#if FSFW_CPP_OSTREAM_ENABLED == 1
sif::error << "UdpTcPollingTask::initialize: TC store uninitialized!" << std::endl;
#endif
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return ObjectManagerIF::CHILD_INIT_FAILED;
}
tmtcBridge = objectManager->get<UdpTmTcBridge>(tmtcBridgeId);
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if(tmtcBridge == nullptr) {
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#if FSFW_CPP_OSTREAM_ENABLED == 1
sif::error << "UdpTcPollingTask::initialize: Invalid TMTC bridge object!" <<
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std::endl;
#endif
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return ObjectManagerIF::CHILD_INIT_FAILED;
}
ReturnValue_t result = TcpIpBase::initialize();
if(result != HasReturnvaluesIF::RETURN_OK) {
return result;
}
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return HasReturnvaluesIF::RETURN_OK;
}
ReturnValue_t UdpTcPollingTask::initializeAfterTaskCreation() {
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/* Initialize the destination after task creation. This ensures
that the destination has already been set in the TMTC bridge. */
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targetTcDestination = tmtcBridge->getRequestQueue();
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/* The server socket is set up in the bridge intialization. Calling this function here
ensures that it is set up regardless of which class was initialized first */
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this->serverSocket = tmtcBridge->serverSocket;
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return HasReturnvaluesIF::RETURN_OK;
}
void UdpTcPollingTask::setTimeout(double timeoutSeconds) {
#ifdef _WIN32
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DWORD timeoutMs = timeoutSeconds * 1000.0;
int result = setsockopt(serverUdpSocket, SOL_SOCKET, SO_RCVTIMEO,
reinterpret_cast<const char*>(&timeoutMs), sizeof(DWORD));
if(result == -1) {
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#if FSFW_CPP_OSTREAM_ENABLED == 1
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sif::error << "TcWinUdpPollingTask::TcSocketPollingTask: Setting "
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"receive timeout failed with " << strerror(errno) << std::endl;
#endif
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}
#elif defined(__unix__)
#endif
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}