Do I need precompil or any?

[non]

Hi everyone.

I try to build mesh-net work on ns3.26.

But it isn't work.

I think it is bad to code.

Do I need precompil for header and code?

Would you help me?

Thank you.

------Hierarchy------

ns 3.26 --- scratch--- exp06-simpleMesh.cc

                              ---simpleMeshLib.h

                             ---simpleMeshLib.cc

------error------

Undefined symbols for architecture x86_64:

  "_main", referenced from:

     implicit entry/start for main executable

ld: symbol(s) not found for architecture x86_64

clang: error: linker command failed with exit code 1 (use -v to see invocation)

Undefined symbols for architecture x86_64:

  "MeshDot11sSim::RunSim(int, char**)", referenced from:

      _main in exp06-simpleMesh.cc.14.o

  "MeshDot11sSim::MeshDot11sSim()", referenced from:

      _main in exp06-simpleMesh.cc.14.o

  "vtable for MeshDot11sSim", referenced from:

      MeshDot11sSim::~MeshDot11sSim() in exp06-simpleMesh.cc.14.o

  NOTE: a missing vtable usually means the first non-inline virtual member function has no definition.

ld: symbol(s) not found for architecture x86_64

clang: error: linker command failed with exit code 1 (use -v to see invocation)

-----code(exp06-simpleMesh.cc)-----

12 int main (int argc, char *argv[])

13 {

14 MeshDot11sSim sim;

15 ns3::PacketMetadata::Enable ();

16

17 sim.RunSim(argc, argv);

18

19 return 0;

20 }

-----code(simpleMeshLib.h)-----

class MeshDot11sSim

{

    public:

// Init test

MeshDot11sSim ();

    //private:

uint32_t m_xSize; //x size of the grid

uint32_t m_ySize; //y size of the grid

double   m_step;  //separation between nodes

double   m_randomStart;

double   m_totalTime;

uint16_t m_packetSize;

uint32_t m_nIfaces;

bool     m_chan;

std::string m_txrate;

std::string m_root;

bool     m_showRtable;

//to calculate the lenght of the simulation

float m_timeTotal, m_timeStart, m_timeEnd;

// List of network nodes

NodeContainer meshNodes;

NodeContainer staNodes;

Ptr<Node>     *n;

Ptr<Node>     bgr;

// List of all mesh point devices

NetDeviceContainer meshDevices;

NetDeviceContainer p2pDevices;

// MeshHelper. Report is not static methods

MeshHelper mesh;

    //private:

// Run test

virtual void RunSim (int argc, char **argv);

// Configure test from command line arguments

virtual void Configure (int argc, char ** argv);

// Create nodes and setup their mobility

-----code(simpleMeshLib.cc)-----

void 

MeshDot11sSim::RunSim (int argc, char *argv[])

{

NS_LOG_FUNCTION(this);

Configure (argc, argv);

// use ConfigStore

// following default configuration are same to

// ./waf --run "exp06-simpleMesh --ns3::ConfigStore::Mode=Save 

// --ns3::ConfigStore::Filename=config.txt"

std::string cf = std::string(PROG_DIR) + "config.txt";

Config::SetDefault ("ns3::ConfigStore::Filename", StringValue (cf));

Config::SetDefault ("ns3::ConfigStore::FileFormat", StringValue ("RawText"));

Config::SetDefault ("ns3::ConfigStore::Mode", StringValue ("Save"));

ConfigStore config;

  config.ConfigureDefaults ();

CreateTopologyNodes ();

ConfigureMeshLayer();

InstallInternetStack ();

//SetUpUdpApplication();

[Rob Kers]

Hi!

Did you add you .h and .cc files to .waf config files? Otherwise the WAF build tool does not know about your files and wont link them. 

" clang: error: linker command failed with exit code 1 (use -v to see invocation)"

indicates a linking problem.

[pdbarnes]

That’s true in modules in src, but not in scratch. In scratch there are two ways to arrange your code.

For single .cc files with a main() function just put them in scratch. When you want to spread your code over multiple.cc files, as in this case, you should put them all in a subdirectory of scratch. You don’t need to edit any wscript files. These two cases are explained in the tutorial.

Peter