I try to record the values of electricityConsumption. For that I build the NED file like this:
simple EConsumerRSF
{
parameters:
volatile xml ElectricityConsumptionRSFLoadProfile;
volatile double sendIaTime #unit(s);
#signal[electricityConsumption](type="double");
#statistics[electricityConsumption](title="Electricity Consumption RSF Unit 1";source="electricityConsumption"; record=vector,stats; interpolationmode=none);
gates:
output outElectricityConsumptionRSF;
}
My c++ class and header file looks like this:
#ifndef __VISIONSIMULATIONOFPED_ECONSUMERRSF_H_
#define __VISIONSIMULATIONOFPED_ECONSUMERRSF_H_
#include <omnetpp.h>
#include <stdio.h>
#include <string.h>
//#include "EConsumptionRSFMessage_m.h"
using namespace omnetpp;
namespace network {
/**
* Network EConsumerRSF; see NED file for more info.
*/
//class EConsumerRSF : public EConsumptionRSFMessage
class EConsumerRSF : public cSimpleModule
{
public:
EConsumerRSF();
virtual ~EConsumerRSF();
protected:
virtual void initialize() override;
virtual void handleMessage(cMessage *msg) override;
// virtual void setValEConsumption(double valEConsumption);
private:
int counterSend = 1;
int counterMessage = 1;
double valEConsumption1;
double valEConsumption2;
double valEConsumption3;
double valEConsumption4;
simsignal_t electricityConsumptionSingnalId;
//double electricityConsumption;
double valEConsumption;
double aggregationOfElectricityConsumptionRSF = 0;
cMessage *endTxEvent;
cMessage *EConsumptionRSFMessage;
};
}; //namespace
#endif
#include "EConsumerRSF.h"
#include <stdio.h>
#include <string.h>
//#include "EConsumptionRSFMessage_m.h"
using namespace omnetpp;
namespace network {
Define_Module(EConsumerRSF);
EConsumerRSF::EConsumerRSF()
{
endTxEvent = nullptr;
}
EConsumerRSF::~EConsumerRSF()
{
cancelAndDelete(endTxEvent);
}
void EConsumerRSF::initialize()
{
electricityConsumptionSingnalId = registerSignal("electricityConsumption");
//Get param XMLElectricity file from simple module
cXMLElement *rootelementEConsumption = par("ElectricityConsumptionRSFLoadProfile");
cXMLElementList paramsEConsumption = rootelementEConsumption->getChildrenByTagName("param");
//Loop to iterate through all elements called param
for (const auto & element : paramsEConsumption) {
const char* valueEConsumption = element->getNodeValue();
valEConsumption = atof(valueEConsumption);
EV << "Read value: " << valEConsumption << std::endl;
if (valEConsumption > 0.0) {
//Calculation of electricity supply through utility
aggregationOfElectricityConsumptionRSF = aggregationOfElectricityConsumptionRSF + valEConsumption;
}
switch(counterMessage)
{
case 1:
valEConsumption1 = valEConsumption;
counterMessage++;
break;
case 2:
valEConsumption2 = valEConsumption;
counterMessage++;
break;
case 3:
valEConsumption3 = valEConsumption;
counterMessage++;
break;
case 4:
valEConsumption4 = valEConsumption;
counterMessage++;
break;
}
}
EConsumptionRSFMessage = new cMessage("valEConsumption");
endTxEvent = new cMessage("send/endTx");
scheduleAt(simTime(), endTxEvent);
}
void EConsumerRSF::handleMessage(cMessage *msg)
{
// Check if self message is received
if(endTxEvent->isSelfMessage()){
if(counterSend <= 4){
switch(counterSend)
{
case 1:
if(valEConsumption1 > 0.0){
double electricityConsumption = valEConsumption1;
emit(electricityConsumptionSingnalId, electricityConsumption);
send(EConsumptionRSFMessage->dup(), "outElectricityConsumptionRSF");
}else{
double electricityConsumption = 0.0000000;
emit(electricityConsumptionSingnalId, electricityConsumption);
}
counterSend++;
scheduleAt(simTime()+par("sendIaTime").doubleValue(), endTxEvent);
break;
case 2:
if(valEConsumption2 > 0.0){
double electricityConsumption = valEConsumption2;
emit(electricityConsumptionSingnalId, electricityConsumption);
send(EConsumptionRSFMessage->dup(), "outElectricityConsumptionRSF");
}else{
double electricityConsumption = 0.0000000;
emit(electricityConsumptionSingnalId, electricityConsumption);
}
counterSend++;
scheduleAt(simTime()+par("sendIaTime").doubleValue(), endTxEvent);
break;
case 3:
if(valEConsumption3 > 0.0){
double electricityConsumption = valEConsumption3;
emit(electricityConsumptionSingnalId, electricityConsumption);
send(EConsumptionRSFMessage->dup(), "outElectricityConsumptionRSF");
}else{
double electricityConsumption = 0.0000000;
emit(electricityConsumptionSingnalId, electricityConsumption);
}
counterSend++;
scheduleAt(simTime()+par("sendIaTime").doubleValue(), endTxEvent);
break;
case 4:
if(valEConsumption4 > 0.0){
double electricityConsumption = valEConsumption4;
emit(electricityConsumptionSingnalId, electricityConsumption);
send(EConsumptionRSFMessage->dup(), "outElectricityConsumptionRSF");
}else{
double electricityConsumption = 0.0000000;
emit(electricityConsumptionSingnalId, electricityConsumption);
}
counterSend++;
//cancelEvent(endTxEvent);
scheduleAt(simTime()+par("sendIaTime").doubleValue(), endTxEvent);
break;
default:
cancelEvent(endTxEvent);
break;
}
}else {
throw cRuntimeError("self-message not delivered");
cancelEvent(endTxEvent);
}
}
}
}; //namespace
and I enabled the recording in the .ini file like this:
[Config EConsumerRSF]
**.serviceTime = 1s
**.electricityConsumption.result-recording-modes = -vector
It does not even build the .vec file when I run the simulation. What am I doing wrong? Is it not possible to record results in handleMessage()? Or do I miss something?
Could please someone help me with this issue?
Thanks in advance!
There are two mistakes in the presented code:
In NED should be #statistic (instead of #statistics).
Actually in omnetpp.ini in the line:
**.electricityConsumption.result-recording-modes = -vector
you have turned off recording of vectors (a minus sign means disabling). To turn on recording of vector change it to +vector or simply remove this line.
Related
In my project,
I implement a new class called myApp which inherits from ApplicationBase and UdpSocket classes. When I build my project I get no error, but when I debug C/C++ application with the IDE, it displays the first error in errors section. And the command line display the second error when I run make :
Code of myApp.ned, myApp.h and myApp.cc in what follows :
I did include inet library in project references, and I tried the solution posted in The following NED types could not be fully resolved, due to a missing base type or interface.
import inet.applications.contract.IApp;
simple myApp like IApp
{
parameters:
int localPort = default(-1); // local UDP port number (-1: use ephemeral port)
int destPort; // remote UDP port number
string packetName = default("myApp");
string interfaceTableModule; // The path to the InterfaceTable module
double helloInterval #unit(s) = default(5s); // how often hello messages should be sent out
volatile double sendInterval #unit(s); // should usually be a random value, e.g. exponential(1)
double startTime #unit(s) = default(this.sendInterval); // application start time (start of the first packet)
double stopTime #unit(s) = default(-1s); // time of finishing sending, -1s means forever
double maxVariance = default(1); // This is the maximum of a random value to determine when the first hello message will be sent out
volatile double broadcastDelay #unit(s) = default(uniform(0s,0.01s));
int timeToLive = default(-1); // if not -1, set the TTL (IPv4) or Hop Limit (IPv6) field of sent packets to this value
bool dontFragment = default(false); // if true, asks IP to not fragment the message during routing
int typeOfService = default(-1); // if not -1, set the ToS (IPv4) or Traffic Class (IPv6) field of sent packets to this value
string multicastInterface = default(""); // if not empty, set the multicast output interface option on the socket (interface name expected)
bool receiveBroadcast = default(false); // if true, makes the socket receive broadcast packets
bool joinLocalMulticastGroups = default(false); // if true, makes the socket receive packets from all multicast groups set on local interfaces
#class(myApp);
gates:
input socketIn #labels(UdpControlInfo/up);
output socketOut #labels(UdpControlInfo/down);
}
#ifndef MYAPP_H_
#define MYAPP_H_
#include "inet/common/INETDefs.h"
#include "inet/applications/base/ApplicationBase.h"
#include "inet/transportlayer/contract/udp/UdpSocket.h"
#include "inet/transportlayer/contract/udp/UdpControlInfo_m.h"
#include "inet/common/ModuleAccess.h"
#include "inet/common/TimeTag_m.h"
#include "inet/common/packet/Packet.h"
#include "inet/common/lifecycle/ModuleOperations.h"
#include "inet/common/IProtocolRegistrationListener.h"
#include "inet/common/ProtocolTag_m.h"
#include "inet/linklayer/common/InterfaceTag_m.h"
#include "inet/networklayer/contract/IInterfaceTable.h"
#include "inet/networklayer/contract/ipv4/Ipv4Address.h"
#include "inet/networklayer/ipv4/IIpv4RoutingTable.h"
#include "inet/networklayer/ipv4/Ipv4Header_m.h"
#include "inet/networklayer/ipv4/Ipv4InterfaceData.h"
#include "inet/networklayer/common/FragmentationTag_m.h"
#include "inet/networklayer/common/L3AddressResolver.h"
#include "HelloMsg_m.h"
#include "XedMsg_m.h"
#include <omnetpp.h>
#include <vector>
#include <random>
#include <algorithm>
using namespace omnetpp;
using namespace inet;
using namespace std;
class myApp : public ApplicationBase, public UdpSocket::ICallback
{
protected:
//enum SelfMsgKinds { START = 1, SEND, STOP };
int localPort = -1, destPort = -1;
bool dontFragment = false;
const char *packetName = nullptr;
simtime_t startTime;
simtime_t stopTime;
// state
UdpSocket socket;
cMessage *selfMsg = nullptr;
cModule *host = nullptr;
cMessage *event = nullptr;
cPar *broadcastDelay = nullptr;
unsigned int sequencenumber = 0;
simtime_t helloInterval;
IInterfaceTable *ift = nullptr;
InterfaceEntry *interface80211ptr = nullptr;
int interfaceId = -1;
list<L3Address> neighbors;
Ipv4Address source;
/********** XED **********/
class XED
{
public:
L3Address originatorAddr, destinationAddr;
unsigned int random;
XED(const L3Address& originatorAddr, const L3Address& destinationAddr, unsigned int random)
: originatorAddr(originatorAddr), destinationAddr(destinationAddr), random(random) {};
bool operator==(const XED& other) const
{
return this->originatorAddr == other.originatorAddr && this->destinationAddr == other.destinationAddr
&& this->random == other.random;
}
};
list<XED> lr,ls;
/********** MTLSD **********/
class MTLSD
{
public:
L3Address originatorAddr, destinationAddr;
char *position;
simtime_t time;
MTLSD(const L3Address& originatorAddr, const L3Address& destinationAddr, char *position, simtime_t time)
: originatorAddr(originatorAddr), destinationAddr(destinationAddr), position(position), time(time) {};
bool operator==(const MTLSD& other) const
{
return this->originatorAddr == other.originatorAddr && this->destinationAddr == other.destinationAddr
&& this->position == other.position && this->time == time;
}
};
protected:
virtual int numInitStages() const override { return NUM_INIT_STAGES; }
virtual void initialize(int stage) override;
virtual void handleMessageWhenUp(cMessage *msg) override;
void handleSelfMessage(cMessage *msg);
/*virtual void processStart();
virtual void processSend();
virtual void processStop();*/
// lifecycle
virtual void handleStartOperation(LifecycleOperation *operation) override { start(); }
virtual void handleStopOperation(LifecycleOperation *operation) override { stop(); }
virtual void handleCrashOperation(LifecycleOperation *operation) override { stop(); }
void start();
void stop();
virtual void socketDataArrived(UdpSocket *socket, Packet *packet) override;
virtual void socketErrorArrived(UdpSocket *socket, Indication *indication) override;
virtual void socketClosed(UdpSocket *socket) override;
//virtual void generateMTLSDPacket();
//virtual Packet *generateXEDPacket();
virtual double generateRandom();
public:
myApp() {}
~myApp();
};
#endif /* MYAPP_H_ */
#include "myApp.h"
#include "inet/applications/base/ApplicationPacket_m.h"
#include "inet/applications/udpapp/UdpBasicApp.h"
#include "inet/common/TagBase_m.h"
#include "inet/networklayer/common/L3AddressTag_m.h"
#include <iterator>
using namespace std;
Define_Module(myApp);
myApp::~myApp()
{
EV << "App destructor" << endl;
cancelAndDelete(selfMsg);
}
void myApp::initialize(int stage)
{
ApplicationBase::initialize(stage);
if (stage == INITSTAGE_LOCAL)
{
sequencenumber = 0;
ift = getModuleFromPar<IInterfaceTable>(par("interfaceTableModule"), this);
event = new cMessage("event");
broadcastDelay = &par("broadcastDelay");
helloInterval = par("helloInterval");
localPort = par("localPort");
destPort = par("destPort");
packetName = par("packetName");
startTime = par("startTime");
stopTime = par("stopTime");
}
else if (stage == INITSTAGE_ROUTING_PROTOCOLS)
{
registerService(Protocol::manet, nullptr, gate("socketIn"));
registerProtocol(Protocol::manet, gate("socketOut"), nullptr);
}
}
void myApp::handleSelfMessage(cMessage *msg)
{
if (msg == event)
{
auto hello = makeShared<HelloMsg>();
Ipv4Address source = (interface80211ptr->getProtocolData<Ipv4InterfaceData>()->getIPAddress());
hello->setChunkLength(b(128));
hello->setSrcAddress(source);
sequencenumber += 2;
hello->setSequencenumber(sequencenumber);
hello->setNextAddress(source);
hello->setHopdistance(1);
auto packet = new Packet("Hello", hello);
packet->addTagIfAbsent<L3AddressReq>()->setDestAddress(Ipv4Address(255, 255, 255, 255));
packet->addTagIfAbsent<L3AddressReq>()->setSrcAddress(source);
packet->addTagIfAbsent<InterfaceReq>()->setInterfaceId(interface80211ptr->getInterfaceId());
packet->addTagIfAbsent<PacketProtocolTag>()->setProtocol(&Protocol::manet);
packet->addTagIfAbsent<DispatchProtocolReq>()->setProtocol(&Protocol::ipv4);
send(packet, "socketOut");
packet = nullptr;
hello = nullptr;
scheduleAt(simTime()+helloInterval+broadcastDelay->doubleValue(), event);
}
}
void myApp::handleMessageWhenUp(cMessage *msg)
{
if (msg->isSelfMessage())
{
handleSelfMessage(msg);
}
else if (check_and_cast<Packet *>(msg)->getTag<PacketProtocolTag>()->getProtocol() == &Protocol::manet)
{
auto recHello = staticPtrCast<HelloMsg>(check_and_cast<Packet *>(msg)->peekData<HelloMsg>()->dupShared());
if (msg->arrivedOn("socketIn"))
{
bubble("Received hello message");
Ipv4Address source = interface80211ptr->getProtocolData<Ipv4InterfaceData>()->getIPAddress();
Ipv4Address src;
unsigned int msgsequencenumber;
int numHops;
Ipv4Address next;
src = recHello->getSrcAddress();
msgsequencenumber = recHello->getSequencenumber();
next = recHello->getNextAddress();
numHops = recHello->getHopdistance();
if (src == source)
{
EV_INFO << "Hello msg dropped. This message returned to the original creator.\n";
delete msg;
return;
}
else
{
neighbors.push_back(src);
/*list<XED>::iterator findIter = find(ls.begin()->destinationAddr, ls.end()->destinationAddr, src);
if (findIter != ls.end()->destinationAddr)
{
}*/
source = (interface80211ptr->getProtocolData<Ipv4InterfaceData>()->getIPAddress());
//socket.bind(source, localPort);
auto xed = makeShared<XedMsg>();
xed->setChunkLength(b(128)); ///size of XED message in bits
xed->setSrcAddress(source);
xed->setDstAddress(src);
double random = generateRandom();
xed->setRandom(random);
//XED item = XED(source, src, random);
//ls.push_back(item);
auto packet = new Packet("XED", xed);
packet->addTagIfAbsent<L3AddressReq>()->setDestAddress(src);
packet->addTagIfAbsent<L3AddressReq>()->setSrcAddress(source);
packet->addTagIfAbsent<InterfaceReq>()->setInterfaceId(interfaceId);
packet->addTagIfAbsent<PacketProtocolTag>()->setProtocol(&Protocol::ipv4);
packet->addTagIfAbsent<DispatchProtocolReq>()->setProtocol(&Protocol::ipv4);
socket.setOutputGate(gate("socketOut"));
socket.setCallback(this);
socket.bind(source, localPort);
//emit(packetSentSignal, packet);
socket.sendTo(packet, src, destPort);
//send(packet, "socketOut");
packet = nullptr;
xed = nullptr;
/*Ipv4Address source = (interface80211ptr->getProtocolData<Ipv4InterfaceData>()->getIPAddress());
EV << "I am node " << source << ", my neighbors are : " << endl;
list<L3Address>::iterator it;
for (it = neighbors.begin(); it != neighbors.end(); ++it)
{
EV << it. << endl;
}
for (auto const& i : neighbors)
{
EV << i.str() << endl;
}*/
EV << "I am your neighbor " << src.str();
}
delete msg;
}
else if (check_and_cast<Packet *>(msg)->getTag<PacketProtocolTag>()->getProtocol() == &Protocol::ipv4)
{
EV << "Xed message received" << endl;
//auto recXed = staticPtrCast<XedMsg>(check_and_cast<Packet *>(msg)->peekData<XedMsg>()->dupShared());
}
else
throw cRuntimeError("Message arrived on unknown gate %s", msg->getArrivalGate()->getName());
}
}
void myApp::start()
{
/*socket.setOutputGate(gate("socketOut"));
socket.setCallback(this);*/
int num_80211 = 0;
InterfaceEntry *ie;
InterfaceEntry *i_face;
const char *name;
for (int i = 0; i < ift->getNumInterfaces(); i++)
{
ie = ift->getInterface(i);
name = ie->getInterfaceName();
if (strstr(name, "wlan") != nullptr)
{
i_face = ie;
num_80211++;
interfaceId = i;
}
}
if (num_80211 == 1)
{
interface80211ptr = i_face;
interfaceId = interface80211ptr->getInterfaceId();
}
else
throw cRuntimeError("Node has found %i 80211 interfaces", num_80211);
scheduleAt(simTime() + uniform(0.0, par("maxVariance").doubleValue()), event);
}
double myApp::generateRandom()
{
double lower_bound = 10000;
double upper_bound = 100000;
uniform_real_distribution<double> unif(lower_bound,upper_bound);
default_random_engine re;
double a_random_double = unif(re);
return a_random_double;
}
void myApp::stop()
{
cancelEvent(event);
socket.close();
delayActiveOperationFinish(par("stopOperationTimeout"));
}
void myApp::socketDataArrived(UdpSocket *socket, Packet *packet)
{
emit(packetReceivedSignal, packet);
EV_INFO << "Received packet: " << UdpSocket::getReceivedPacketInfo(packet) << endl;
}
void myApp::socketErrorArrived(UdpSocket *socket, Indication *indication)
{
EV_WARN << "Ignoring UDP error report " << indication->getName() << endl;
delete indication;
}
void myApp::socketClosed(UdpSocket *socket)
{
if (operationalState == State::STOPPING_OPERATION)
startActiveOperationExtraTimeOrFinish(par("stopOperationExtraTime"));
}
Error: NED type 'myApp' could not be fully resolved due to a missing base type or interface, at /home/bocuhra/Downloads/omnetpp-5.4.1/samples/SaaS/myApp.ned:18
myApp.cc
HelloMsg_m.cc
XedMsg_m.cc
Creating executable: out/gcc-release//SaaS
/usr/bin/ld: cannot find -lINET
collect2: error: ld returned 1 exit status
Makefile:104: recipe for target 'out/gcc-release//SaaS' failed
make: *** [out/gcc-release//SaaS] Error 1
I did solve the problem by adding all ned files in my .ini file.
ned-path = .;../inet/src/inet
I'm trying make simple code call an enclave field and just add 1.
I'm reference this site : https://software.intel.com/en-us/articles/getting-started-with-sgx-sdk-f...
After it finishes, there is no error, but the enclave code is not working.
Here is my project.zip code with Visual Studio 2017 https://drive.google.com/open?id=13trTAamhNWaz2Q2BRDtUFP5qCX8Syyuc
app.cpp
#include <stdio.h>
#include <Windows.h>
#include <tchar.h>
#include "sgx_urts.h"
#include "Enclave1_u.h"
#define ENCLAVE_FILE _T("Enclave1.signed.dll")
int main() {
int a = 1;
int i = 0;
sgx_enclave_id_t eid;
sgx_status_t ret = SGX_SUCCESS;
sgx_launch_token_t token = { 0 };
int updated = 0;
ret = sgx_create_enclave(ENCLAVE_FILE, SGX_DEBUG_FLAG, &token, &updated, &eid, NULL);
if (ret != SGX_SUCCESS)
{
printf("APP error%#x, failed to create enclave. \n", ret);
return -1;
}
int *ptr = &a;
printf("%d\n",*ptr);
while (i<5) {
foo(eid, ptr);
printf("%d\n", *ptr);
Sleep(1000);
i++;
}
if (SGX_SUCCESS != sgx_destroy_enclave(eid))
return -1;
}
Enclave1.edl
enclave {
from "sgx_tstdc.edl" import *;
trusted {
/* define ECALLs here. */
public void foo([in, size = 4]int *ptr);
};
untrusted {
/* define OCALLs here. */
};
};
Enclave1.cpp
#include "Enclave1_t.h"
#include "sgx_trts.h"
#include <string.h>
void foo(int *ptr)
{
if (*ptr == 1) *ptr == 43971;
*ptr += 1;
}
I expected it to print:
43971, 43972, 43973, 43974 .....
But the result is:
1, 1, 1, .........
What did I miss?
i solved this problem.
foo needs [out] instad of [in] so Enclave1.edl should
enclave { from "sgx_tstdc.edl" import *;
trusted {
/* define ECALLs here. */
public void foo([out, size = 4]int *ptr);
};
untrusted {
/* define OCALLs here. */
};
};
project1.signed.dll file is not updated on debug folder. so i try rebuild project and it updated. I'm realized this file is enclave field itself
IF state grammar is wrong. it should be if (*ptr == 1) *ptr = 43971;
This little program has to write an xml file.
Building the code I get the following error:
K:\Sergio\cpp\xml\sergio\cbp6s\main.cpp|32|error: 'base_tag' is an inaccessible base of 'tag'
In short, I have two classes derived from base_tag (xml_declaration and tag) and I want insert (or emplace) in a std::map some std::pair elements.
Building, the first insert works (std::pair<order::declaration, xml_declaration>), but the second fails (std::pair<order::root, tag_object>).
Between the object are derived from base_tag
Where am I wrong?
File tag.hpp :
#ifndef _TAG_HPP_
#define _TAG_HPP_
#include <string>
#include <vector>
#include <utility>
enum class tag_type
{
closing = -1,
autoclosed = 0,
opening = 1
};
using attribute = std::pair<std::string, std::string>;
class base_tag
{
public:
base_tag();
virtual ~base_tag();
virtual std::string get();
bool attribute_exists(std::string);
std::string get_attribute_value(std::string name);
bool add_attribute(std::string name, std::string value);
protected:
std::vector<std::pair<std::string, std::string>> _attributes;
};
// ------------------------------------------------------------
class xml_declaration : public base_tag
{
public:
xml_declaration();
~xml_declaration();
std::string get();
};
// ----------------------------------------------------------
class tag : base_tag
{
public:
tag(std::string name);
tag(std::string name, tag_type tt );
std::string get();
void set_ident(size_t ident);
protected:
std::string _name;
tag_type _tt;
};
#endif // _TAG_HPP_
File tag.cpp
#include "tag.hpp"
base_tag::base_tag()
{
}
base_tag::~base_tag()
{
_attributes.clear();
}
bool base_tag::attribute_exists(std::string name)
{
bool res = false;
for(auto & i : _attributes)
{
if (i.first == name)
res = true;
}
return res;
}
bool base_tag::add_attribute(std::string name, std::string value)
{
bool res = false;
if(!attribute_exists(name))
{
attribute a = std::make_pair(name, value);
_attributes.push_back(a);
res = true;
}
return res;
}
std::string base_tag::get()
{
return u8"<invalid_tag/>";
}
// -------------------------------------------------------
xml_declaration::xml_declaration(): base_tag()
{
add_attribute("version", "1.0");
add_attribute("encoding", "UTF-8");
add_attribute("standalone", "yes");
}
xml_declaration::~xml_declaration()
{ }
std::string xml_declaration::get()
{
std::string res = u8"<?xml";
for(auto & i : _attributes)
{
res.push_back(' ');
res += i.first;
res += u8"=\"";
res += i.second;
res += u8"\"";
}
res += u8" ?>";
return res;
}
// -------------------------------------------------------------
tag::tag(std::string name):base_tag(), _name(name)
{
_tt = tag_type::autoclosed;
}
tag::tag(std::string name, tag_type tt ): base_tag(), _name(name),
_tt(tt)
{ }
std::string tag::get()
{
std::string res = u8"";
bool with_attributes = !(_attributes.empty());
switch(_tt)
{
case tag_type::autoclosed : {
res = u8"<";
res += _name;
if(with_attributes)
{
for(auto & i : _attributes)
{
res.push_back(' ');
res += i.first;
res += u8"=\"";
res += i.second;
res += u8"\"";
}
};
res += u8"/>";
break;
}
case tag_type::opening : {
res = u8"<";
res += _name;
for(auto & i : _attributes)
{
res.push_back(' ');
res += i.first;
res += u8"=\"";
res += i.second;
res += u8"\"";
}
res += u8">";
break;
}
case tag_type::closing : {
res = u8"</";
res += _name;
res.push_back('>');
}
default : break;
}
return res;
}
File main.cpp
#include <iostream>
#include <map>
#include <utility>
#include "tag.hpp"
using namespace std;
enum class order
{
declaration = 0,
root = 1,
file_version = 4,
project = 10,
project_closing = 998,
root_closing = 1000
};
int main()
{
std::map<order, base_tag> tree;
xml_declaration decl;
cout << decl.get() << endl;
tag t1("project_file", tag_type::opening);
tag t2("project_file", tag_type::closing);
tree.insert(std::pair<order, base_tag>(order::declaration,
decl));
tree.insert(std::pair<order, base_tag>(order::root, t1));
tree.insert(std::pair<order, base_tag>(order::root, t2));
// tree.emplace(std::pair<order, base_tag>(order::root_closing, t1));
cout << tree.size() << endl;
return 0;
}
I'm using Code::Blocks with GCC 5.1.0 (on Windows 10).
As the error message says, tag inherits base_tag privately. If you change its headline into
class tag: public base_tag;
(same as your xml_declaration which inherits base_tag publicly) then it will officially be-a base tag.
A more serious problem is that you try to store instances of inherited classes in a container of a base class by value. What happens then is, objects get sliced and lose their whole derived functionality; you put an object of a derived class into a map, but you actually store an object of a based class in it (that's the reason some people tend to say polymorphic base classes should necessarily be abstract.) Use (smart) pointers or reference_wrappers as map's mapped type.
I'm trying to compile a code in Visual Studio, but I keep getting the following error:
Error 4 error C3867: 'MindSet::Form1::handleDataValueFunc': function call missing argument list; use '&MindSet::Form1::handleDataValueFunc' to create a pointer to member c:\documents and settings\licap\desktop\mindset\mindset\mindset\Form1.h 122 1 MindSet
This is my code
#pragma endregion
void handleDataValueFunc(unsigned char extendedCodeLevel, unsigned char code,
unsigned char valueLength, const unsigned char *value, void *customData)
{
FILE *arq1;
FILE *arq2;
FILE *arq3;
arq1 = fopen("raw.txt","a");
arq2 = fopen("atencao.txt","a");
arq3 = fopen("meditacao.txt","a");
if (extendedCodeLevel == 0 && code == RAW_WAVE_CODE)
{
short rawValue = ((value[0] << 8) & 0xff00) | (0x00ff & value[1]);
printf("%d\n", rawValue);
fprintf(arq1,"%d\n",rawValue);
}
if (extendedCodeLevel == 0 && code == ATTENTION_LEVEL_CODE)
{
short attentionValue = (value[0] & 0xFF);
printf("%d\n", attentionValue);
fprintf(arq2,"%d\n",attentionValue);
}
if (extendedCodeLevel == 0 && code == MEDITATION_LEVEL_CODE)
{
short meditationValue = (value[0] & 0xFF);
printf("%d\n", meditationValue);
fprintf(arq3,"%d\n",meditationValue);
}
fclose(arq1);
fclose(arq2);
fclose(arq3);
}
private: System::Void IniciarCaptura_Click(System::Object^ sender, System::EventArgs^ e) {
SerialPort* port = new SerialPortW32();
if (port->open())
{
/* Initialize ThinkGear stream parser */
ThinkGearStreamParser parser;
THINKGEAR_initParser(&parser, PARSER_TYPE_PACKETS, handleDataValueFunc, NULL);
unsigned char byteRead;
for (int i = 0; i < 100000; i++)
{
if (port->read(&byteRead, 1) == 1)
{
THINKGEAR_parseByte(&parser, byteRead);
fflush(stdout);
}
else
{
//cerr << "Erro na leitura da porta" << endl;
break;
}
}
port->close();
}
else
{
//cout << port->getErrorMessage() << endl;
}
delete port;
//return 0;
}
};
}
I've already tried to add a "&" before "handleDataValueFunc", but it only returns another error message. Can anybody help?
You will have to use gcroot See http://msdn.microsoft.com/en-us/library/481fa11f.aspx
struct nativeMindSetFormHandle
{
nativeMindSetFormHandle(MindSet::Form1 ^ h) : handle(h) {}
gcroot<MindSet::Form1 ^> handle;
};
static void handleDataValueFuncProxy(unsigned char extendedCodeLevel,
unsigned char code, unsigned char valueLength, const unsigned char *value,
void *customData)
{
static_cast<nativeMindSetFormHandle *>(customData)->handle->handleDataValueFunc(extendedCodeLevel, code, valueLength, value, NULL);
}
And update IniciarCaptura_Click to include:
nativeMindSetFromHandle * nativeHandle = new nativeMindSetFormHandle(this);
THINKGEAR_initParser(&parser, PARSER_TYPE_PACKETS, handleDataValueFuncProxy, nativeHandle);
And don't forget to delete nativeHandle when you are done.
After performing the command "insmod demo_device" the modules listed in /proc/modules
**demo_device 2528 0 - Live 0xe02da000**
fp_indicators 5072 1 - Live 0xe02d2000 (P)
screader 22672 1 - Live 0xe02c5000 (P)
icamdescrambler 12912 0 - Live 0xe02b2000 (P)
icamemmfilter 16208 0 - Live 0xe02a4000 (P)
icamecmfilter 14992 0 - Live 0xe0294000 (P)
but "(P)" is not avail after that.
After firing the command cat /proc/devices the device "demo_device" is not listed there.
So my question is that: what (P) stands in (cat /proc/modules) and what could be the reason that the device is not listed in (cat /proc/devices).
Thanks in Advance !!
The source code is as:
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/version.h>
#include <linux/fs.h>
#include <linux/cdev.h>
#include <linux/device.h>
#include <linux/errno.h>
#include <asm/uaccess.h>
#include "query_ioctl.h"
#define FIRST_MINOR 0
#define MINOR_CNT 1
static dev_t dev;
static struct cdev c_dev;
static struct class *cl;
static int status = 1, dignity = 3, ego = 5;
static int my_open(struct inode *i, struct file *f)
{
return 0;
}
static int my_close(struct inode *i, struct file *f)
{
return 0;
}
#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,35))
static int my_ioctl(struct inode *i, struct file *f, unsigned int cmd, unsigned long arg)
#else
static long my_ioctl(struct file *f, unsigned int cmd, unsigned long arg)
#endif
{
query_arg_t q;
switch (cmd)
{
case QUERY_GET_VARIABLES:
q.status = status;
q.dignity = dignity;
q.ego = ego;
if (copy_to_user((query_arg_t *)arg, &q, sizeof(query_arg_t)))
{
return -EACCES;
}
break;
case QUERY_CLR_VARIABLES:
status = 0;
dignity = 0;
ego = 0;
break;
case QUERY_SET_VARIABLES:
if (copy_from_user(&q, (query_arg_t *)arg, sizeof(query_arg_t)))
{
return -EACCES;
}
status = q.status;
dignity = q.dignity;
ego = q.ego;
break;
default:
return -EINVAL;
}
return 0;
}
static struct file_operations query_fops =
{
.owner = THIS_MODULE,
.open = my_open,
.release = my_close,
#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,35))
.ioctl = my_ioctl
#else
.unlocked_ioctl = my_ioctl
#endif
};
static int __init query_ioctl_init(void)
{
int ret;
struct device *dev_ret;
printk("Before calling alloc\n");
dev=150;
if ((ret = register_chrdev_region(dev, MINOR_CNT, "demo_device")))
{
return ret;
}
else if((ret = alloc_chrdev_region(&dev,0,MINOR_CNT,"demo_device")))
{
return ret;
}
printk("After alloc %d %d\n",ret,dev);
cdev_init(&c_dev, &query_fops);
if ((ret = cdev_add(&c_dev, dev, MINOR_CNT)) < 0)
{
return ret;
}
printk("After cdev_add\n");
if (IS_ERR(cl = class_create(THIS_MODULE, "char")))
{
cdev_del(&c_dev);
unregister_chrdev_region(dev, MINOR_CNT);
return PTR_ERR(cl);
}
printk("After class_create\n");
if (IS_ERR(dev_ret = device_create(cl, NULL, dev, NULL, "demo")))
{
class_destroy(cl);
cdev_del(&c_dev);
unregister_chrdev_region(dev, MINOR_CNT);
return PTR_ERR(dev_ret);
}
printk("After device_create\n");
return 0;
}
static void __exit query_ioctl_exit(void)
{
device_destroy(cl, dev);
class_destroy(cl);
cdev_del(&c_dev);
unregister_chrdev_region(dev, MINOR_CNT);
}
module_init(query_ioctl_init);
module_exit(query_ioctl_exit);
MODULE_LICENSE("GPL");
And after inserting the module I am able to see these messages:
$insmod demo_device.ko
Before calling alloc
After alloc 0 217055232
After cdev_add
After class_create
After device_create
$
Make sure that Major Number of the device is not preoccupied by some other device file. use the following command to check the occupied Major Numbers
cat /proc/devices
Use the following code to capture initialization error in init function
int t=register_chrdev(majorNumber,"mydev",&fops);
if(t<0)
printk(KERN_ALERT "device registration failed.");
Use dmesg to look into kernel logs
Look at module_flags_taint() in kernel/module.c.
The 'P' flag merely indicated the other modules are proprietary. The reason your device doesn't show up in /proc/devices is probably because something is wrong with the initialisation, but we can't help you with that unless you show us code.
After perfroming make clean to the linux/application source code and rebuilding it again...make it works. Now after inserting the module the corresponding entry is visibe in the /proc/devcies file :)