omniorb (CORBA) C++_ubuntu c++ corba

Refer to  http://omniorb.sourceforge.net/omni42/omniORB/index.html

Refer to  https://my.oschina.net/u/2245781/blog/4355000

Code :  git@github.com:lakehu/example-omniORB.git

#### ubuntu18 x86

### omniorb runtime 
lake@PC-HM6DD43:~$ sudo apt-get install -y omniorb   libomniorb4-dev
 

idl

lake@PC-HM6DD43:/mnt/c/work/omiidl/example$ cat  echo.idl
interface Echo {
    string echoString(in string mesg);
};lake@PC-HM6DD43:/mnt/c/work/omiidl/example$

omniidl    -u
 
Usage: omniidl -b<back_end> [flags] file1 file2 ...
 
The supported flags are:
 
  -Dname[=value]  Define name for preprocessor
  -Uname          Undefine name for preprocessor
  -Idir           Include dir in search path for preprocessor
  -E              Run preprocessor only, print on stdout
  -Ycmd           Set command for the preprocessor
  -N              Do not run preprocessor
  -P              Add defines relevant to platform dependencies (internal use)
  -T              Use a temporary file, not a pipe, for preprocessor output
  -Wparg[,arg...] Send args to the preprocessor
  -bback_end      Select a back-end to be used. More than one permitted  =====================>  -bcxx /default omniidl/cxx

echo_serverimple.cpp

 
lake@PC-HM6DD43:/mnt/c/work/omiidl/example$ omniidl -bcxx echo.idl
lake@PC-HM6DD43:/mnt/c/work/omiidl/example$ ls  -l  echo.hh   echoSK.cc
-rwxrwxrwx 1 lake lake 4408 Aug  5 10:00 echo.hh
-rwxrwxrwx 1 lake lake 5425 Aug  5 10:00 echoSK.cc
lake@PC-HM6DD43:/mnt/c/work/omiidl/example$ date
Wed Aug  5 10:00:34 CST 2020
lake@PC-HM6DD43:/mnt/c/work/omiidl/example$ g++  -g  -c echo_serverimple.cpp
lake@PC-HM6DD43:/mnt/c/work/omiidl/example$ g++  -g  -c echo_client.cpp
lake@PC-HM6DD43:/mnt/c/work/omiidl/example$  g++  -g   -o   echo_test   echoSK.o    echo_serverimple.o    echo_client.o    -lomniDynamic4 -lomniORB4 -lomnithread
lake@PC-HM6DD43:/mnt/c/work/omiidl/example$ ./echo_test
I said,"Hello!". The Object said,"Hello!"

echo_client.cpp

#include  <iostream>
#include  "echo_server.h"
 
using namespace std;
 
 
char* Echo_i::echoString(const char* mesg)
{
  return CORBA::string_dup(mesg);
}

#include  <iostream>
#include  "echo_server.h"
 
using namespace std;
 
 
 
 
void  hello(CORBA::Object_ptr obj)
{
	Echo_var e = Echo::_narrow(obj);
 
	if (CORBA::is_nil(e)) {
	cerr << "cannot invoke on a nil object reference." << endl;
	return;
	}
	CORBA::String_var src = (const char*) "Hello!";
	CORBA::String_var dest;
 
	dest = e->echoString(src);
 
	cerr << "I said,\"" << src << "\"."
	<< " The Object said,\"" << dest <<"\"" << endl;
}
 
 
 
int main(int argc, char **argv)
{
	CORBA::ORB_ptr orb = CORBA::ORB_init(argc,argv,"omniORB4");
	
	CORBA::Object_var       obj = orb->resolve_initial_references("RootPOA");
	PortableServer::POA_var poa = PortableServer::POA::_narrow(obj);
 
	Echo_i *myecho = new Echo_i();
	PortableServer::ObjectId_var myechoid = poa->activate_object(myecho);
 
	Echo_var myechoref = myecho->_this();
	myecho->_remove_ref();
 
	PortableServer::POAManager_var pman = poa->the_POAManager();
	pman->activate();
 
	hello(myechoref);
 
	orb->destroy();
	return 0;
}