Orca Robotics

00001 #ifndef HYDRO_DLLTEST_LIB_INTERFACE_H
00002 #define HYDRO_DLLTEST_LIB_INTERFACE_H
00003 
00004 #include <string>
00005 
00006 namespace dlltest {
00007 
00008 // Abstract interface which will be implemented in the library
00009 class Interface
00010 {
00011 public:
00012     virtual ~Interface() {};
00013 
00014     virtual int number() const=0;
00015 };
00016 
00017 // Helper class to instantiate implementation(s)
00018 class Factory 
00019 {
00020 public:
00021     virtual ~Factory() {};
00022     virtual Interface *create( int number ) const=0;
00023 };
00024 
00025 } // namespace
00026 
00027 // Function for dynamically instantiating drivers.
00028 // A driver must have a function like so:
00029 // extern "C" {
00030 //     dlltest::Factory *createFactory();
00031 // }
00032 typedef dlltest::Factory *FactoryMakerFunc();
00033 
00034 #endif
interface.h
