laurent@219: #ifndef __ACCESSOR_H
laurent@219: #define __ACCESSOR_H
laurent@219: 
laurent@221: 
laurent@219: // variable declaration macros
laurent@219: #define __DECLARE_VAR(type, name)\
laurent@221: 	__IEC_##type##_t name;
laurent@219: #define __DECLARE_GLOBAL(type, resource, name)\
laurent@221: 	__IEC_##type##_t resource##__##name;\
laurent@221: 	static __IEC_##type##_t *GLOBAL__##name = &resource##__##name;
laurent@219: #define __DECLARE_GLOBAL_LOCATION(type, location)\
laurent@219: 	extern type *location;
laurent@219: #define __DECLARE_GLOBAL_LOCATED(type, resource, name)\
laurent@221: 	__IEC_##type##_p resource##__##name;\
laurent@221: 	static __IEC_##type##_p *GLOBAL__##name;
laurent@219: #define __DECLARE_EXTERNAL(type, name)\
laurent@221: 	__IEC_##type##_p name;
laurent@219: #define __DECLARE_LOCATED(type, name)\
laurent@221: 	__IEC_##type##_p name;
laurent@219: 
laurent@219: 
laurent@219: // variable initialization macros
laurent@221: #define __INIT_STRUCT(name, initial, retained)\
laurent@221:     name.value = initial;\
laurent@221: 	name.flags |= retained?4:0;
laurent@221: #define __INIT_VAR(name, initial, retained)\
laurent@221: 	__INIT_STRUCT(name, initial, retained)
laurent@221: #define __INIT_GLOBAL(name, initial, retained)\
laurent@221: 	__INIT_STRUCT((*GLOBAL__##name), initial, retained)
laurent@221: #define __INIT_GLOBAL_LOCATED(resource, name, location, retained)\
laurent@221: 	__INIT_STRUCT(resource##__##name, location, retained)
laurent@221: #define __INIT_EXTERNAL(type, global, name, retained)\
laurent@221: 	{extern __IEC_##type##_t *GLOBAL__##global;\
laurent@221: 	 __INIT_STRUCT(name, &((*GLOBAL__##global).value), retained)}
laurent@221: #define __INIT_LOCATED(type, location, name, retained)\
laurent@219: 	{extern type *location;\
laurent@221: 	 __INIT_STRUCT(name, location, retained)}
laurent@219: #define __INIT_LOCATED_VALUE(name, initial)\
laurent@221: 	*(name.value) = initial;
laurent@219: 
laurent@219: 
laurent@219: // variable getting macros
laurent@221: #define __GET_VAR(name, ...)\
laurent@221: 	name.value __VA_ARGS__
laurent@219: #define __GET_EXTERNAL(name)\
laurent@221: 	name.flags & 2 ? name.fvalue : *(name.value)
laurent@219: #define __GET_LOCATED(name)\
laurent@221: 	name.flags & 2 ? name.fvalue : *(name.value)
laurent@219: #define __GET_VAR_BY_REF(name)\
laurent@219: 	&(name)
laurent@219: #define __GET_EXTERNAL_BY_REF(name)\
laurent@221: 	name.value
laurent@219: #define __GET_LOCATED_BY_REF(name)\
laurent@221: 	name.value
laurent@219: 
laurent@219: // variable setting macros
laurent@221: #define __SET_VAR(name, new_value, ...)\
laurent@221: 	if (!(name.flags & 2)) name.value __VA_ARGS__ = new_value
laurent@219: #define __SET_EXTERNAL(name, new_value)\
laurent@221: 	if (!(name.flags & 2)) *(name.value) = new_value
laurent@219: #define __SET_LOCATED(name, new_value)\
laurent@221: 	if (!(name.flags & 2)) *(name.value) = new_value
laurent@219: 
laurent@219: #endif //__ACCESSOR_H