acnetd/mctask.cpp at main · fermi-ad/acnetd · GitHub

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#include "mctask.h"

MulticastTask::MulticastTask(TaskPool& taskPool, taskhandle_t handle, taskid_t id,
			    pid_t pid, uint16_t cmdPort, uint16_t dataPort, ipaddr_t mcAddr) :
    ExternalTask(taskPool, handle, id, pid, cmdPort, dataPort),  mcAddr(mcAddr)
{
    if (!joinMulticastGroup(sClient, mcAddr))
	throw std::runtime_error("Couldn't join multicast");
}

MulticastTask::~MulticastTask()
{
    dropMulticastGroup(sClient, mcAddr);
}

void MulticastTask::handleReceiveRequests()
{
    Ack ack;

    if (!sendAckToClient(&ack, sizeof(ack)))
	taskPool().removeTask(this);
}

void MulticastTask::handleBlockRequests()
{
    Ack ack;

    if (!sendAckToClient(&ack, sizeof(ack)))
	taskPool().removeTask(this);
}

size_t MulticastTask::totalProp() const
{
    return ExternalTask::totalProp() + 1;
}

char const* MulticastTask::propName(size_t ii) const
{
    if (ii < ExternalTask::totalProp())
	return ExternalTask::propName(ii);

    if (ii == (ExternalTask::totalProp()))
	return "Multicast Address";

    return 0;
}

std::string MulticastTask::propVal(size_t ii) const
{
    if (ii < ExternalTask::totalProp())
	return ExternalTask::propVal(ii);

    if (ii == (ExternalTask::totalProp())) {
	std::ostringstream os;

	os << mcAddr << " (" << countMulticastGroup(mcAddr) << ")";
	return os.str();
    }

    return "";
}