int main(int argc,char *argv[])
{
cout << "C++ dlopen demo\n" << endl;
cout << "Opening hello.so..." << endl;
void* handle = dlopen("./helloworld_cpp.so", RTLD_LAZY);
if (!handle) {
cout << "Cannot open library: " << dlerror() << endl;
return 1;
}
cout << "Loading symbol create and destroy..." << endl;
dlerror();
create_t create = (create_t) dlsym(handle, "create");
const char *dlsym_error = dlerror();
if (dlsym_error) {
cout << "create : " << dlerror() << endl;
dlclose(handle);
return 1;
}
destroy_t destroy = (destroy_t)dlsym(handle, "destroy");
dlsym_error = dlerror();
if (dlsym_error) {
cout << "destroy : " << dlerror() << endl;
dlclose(handle);
return 1;
}
cout << "Calling hello..." << endl;
HelloWorld *hwPtr = (*create)();
hwPtr->sayHello();
(*destroy)(hwPtr);
cout << "Closing library..." << endl;
dlclose(handle);
return 0;
}
int main (int argc, char* argv[]) {
HelloWorld hello;
hello.sayHello(argc, argv);
return 0;
}