1 #ifndef __ACCESSOR_H

     2 #define __ACCESSOR_H

     3 

     4 // variable declaration macros

     5 #define __DECLARE_VAR(type, name)\

     6 	type name;

     7 #define __DECLARE_GLOBAL(type, resource, name)\

     8 	type resource##__##name;\

     9 	static type *GLOBAL__##name = &resource##__##name;\

    10 	type __GET_GLOBAL_##name(void) {return *GLOBAL__##name;}\

    11 	void __SET_GLOBAL_##name(type value) {*GLOBAL__##name = value;}

    12 #define __DECLARE_GLOBAL_LOCATION(type, location)\

    13 	extern type *location;

    14 #define __DECLARE_GLOBAL_LOCATED(type, resource, name)\

    15 	type *resource##__##name;\

    16 	static type *GLOBAL__##name;\

    17 	type __GET_GLOBAL_##name(void) {return *GLOBAL__##name;}\

    18 	void __SET_GLOBAL_##name(type value) {*GLOBAL__##name = value;}

    19 #define __DECLARE_EXTERNAL(type, name)\

    20 	type *name;

    21 #define __DECLARE_LOCATED(type, name)\

    22 	type *name;

    23 

    24 

    25 // variable initialization macros

    26 #define __INIT_VAR(name, initial)\

    27 	name = initial;

    28 #define __INIT_GLOBAL(name, initial)\

    29 	*GLOBAL__##name = initial;

    30 #define __INIT_GLOBAL_LOCATED(resource, name, location)\

    31 	resource##__##name = location;\

    32     GLOBAL__##name = location;

    33 #define __INIT_EXTERNAL(type, global, name)\

    34 	{extern type *GLOBAL__##global;\

    35 	 name = GLOBAL__##global;}

    36 #define __INIT_LOCATED(type, location, name)\

    37 	{extern type *location;\

    38 	 name = location;}

    39 #define __INIT_LOCATED_VALUE(name, initial)\

    40 	*name = initial;

    41 

    42 

    43 // variable getting macros

    44 #define __GET_VAR(name)\

    45 	name

    46 #define __GET_EXTERNAL(name)\

    47 	__GET_GLOBAL_##name()

    48 #define __GET_LOCATED(name)\

    49 	*(name)

    50 #define __GET_VAR_BY_REF(name)\

    51 	&(name)

    52 #define __GET_EXTERNAL_BY_REF(name)\

    53 	GLOBAL__##name

    54 #define __GET_LOCATED_BY_REF(name)\

    55 	name

    56 

    57 // variable setting macros

    58 #define __SET_VAR(name, new_value)\

    59 	name = new_value

    60 #define __SET_EXTERNAL(name, new_value)\

    61 	__SET_GLOBAL_##name(value)

    62 #define __SET_LOCATED(name, new_value)\

    63 	*(name) = value

    64 

    65 #endif //__ACCESSOR_H