- Separate template definition from template declaration

- Explicitly instantiate Singleton templates to be exported from libbackend.so
- Install only header files that are backend interfaces to be exposed to the user
- Don't use full path for including templates in header files
- Instantiate a couple of smart_ptr templates to have their symbols exported outside the DSO. This happens in history.cc. FIXME: the interface for History will definitely need to be reworked, and the two smart_ptr explicit instantiations removed.
- Change SWIG exported interface to make use of Schedulable instead of (Dynamic|Static)Schedulable
- Fix provided policies to make use of the new interface
- TODO: limit the use of smart_ptrs.


git-svn-id: svn://svn.gna.org/svn/sgpemv2/trunk@653 3ecf2c5c-341e-0410-92b4-d18e462d057c

src/backend/scheduler.cc

@@ -24,12 +24,16 @@
 #include "policies_gatekeeper.hh"
 #include "user_interrupt_exception.hh"
 
+// Do not include full template definition in the header file
+#include "singleton.tcc"
+
 #include <iostream>
 using namespace std;
 using namespace sgpem;
 using namespace memory;
 
-Scheduler* Scheduler::_instance = NULL;
+// Explicit template instantiation to allow to export symbols from the DSO.
+template class SG_DLLEXPORT Singleton<Scheduler>;
 
 //private constructor. The parameter is discarded
 Scheduler::Scheduler()
@@ -207,10 +211,3 @@ Scheduler::step_forward() throw(UserInterruptException)
     }
 }
 
-Scheduler&
-Scheduler::get_instance()
-{
-  if(_instance == NULL)
-    _instance = new Scheduler();
-  return *_instance;
-}