1 #ifndef Py_INTERNAL_GLOBAL_OBJECTS_H 2 #define Py_INTERNAL_GLOBAL_OBJECTS_H 3 #ifdef __cplusplus 4 extern "C" { 5 #endif 6 7 #ifndef Py_BUILD_CORE 8 # error "this header requires Py_BUILD_CORE define" 9 #endif 10 11 #include "pycore_context.h" // _PyContextTokenMissing 12 #include "pycore_gc.h" // _PyGC_Head_UNUSED 13 #include "pycore_global_strings.h" // struct _Py_global_strings 14 #include "pycore_hamt.h" // PyHamtNode_Bitmap 15 #include "pycore_hashtable.h" // _Py_hashtable_t 16 #include "pycore_typeobject.h" // pytype_slotdef 17 18 19 // These would be in pycore_long.h if it weren't for an include cycle. 20 #define _PY_NSMALLPOSINTS 257 21 #define _PY_NSMALLNEGINTS 5 22 23 24 // Only immutable objects should be considered runtime-global. 25 // All others must be per-interpreter. 26 27 #define _Py_GLOBAL_OBJECT(NAME) \ 28 _PyRuntime.static_objects.NAME 29 #define _Py_SINGLETON(NAME) \ 30 _Py_GLOBAL_OBJECT(singletons.NAME) 31 32 struct _Py_cached_objects { 33 // XXX We could statically allocate the hashtable. 34 _Py_hashtable_t *interned_strings; 35 }; 36 37 struct _Py_static_objects { 38 struct { 39 /* Small integers are preallocated in this array so that they 40 * can be shared. 41 * The integers that are preallocated are those in the range 42 * -_PY_NSMALLNEGINTS (inclusive) to _PY_NSMALLPOSINTS (exclusive). 43 */ 44 PyLongObject small_ints[_PY_NSMALLNEGINTS + _PY_NSMALLPOSINTS]; 45 46 PyBytesObject bytes_empty; 47 struct { 48 PyBytesObject ob; 49 char eos; 50 } bytes_characters[256]; 51 52 struct _Py_global_strings strings; 53 54 _PyGC_Head_UNUSED _tuple_empty_gc_not_used; 55 PyTupleObject tuple_empty; 56 57 _PyGC_Head_UNUSED _hamt_bitmap_node_empty_gc_not_used; 58 PyHamtNode_Bitmap hamt_bitmap_node_empty; 59 _PyContextTokenMissing context_token_missing; 60 } singletons; 61 }; 62 63 #define _Py_INTERP_CACHED_OBJECT(interp, NAME) \ 64 (interp)->cached_objects.NAME 65 66 struct _Py_interp_cached_objects { 67 PyObject *interned_strings; 68 69 /* AST */ 70 PyObject *_unused_str_replace_inf; // kept in 3.13 for ABI compatibility 71 72 /* object.__reduce__ */ 73 PyObject *objreduce; 74 PyObject *type_slots_pname; 75 pytype_slotdef *type_slots_ptrs[MAX_EQUIV]; 76 77 /* TypeVar and related types */ 78 PyTypeObject *generic_type; 79 PyTypeObject *typevar_type; 80 PyTypeObject *typevartuple_type; 81 PyTypeObject *paramspec_type; 82 PyTypeObject *paramspecargs_type; 83 PyTypeObject *paramspeckwargs_type; 84 }; 85 86 #define _Py_INTERP_STATIC_OBJECT(interp, NAME) \ 87 (interp)->static_objects.NAME 88 #define _Py_INTERP_SINGLETON(interp, NAME) \ 89 _Py_INTERP_STATIC_OBJECT(interp, singletons.NAME) 90 91 struct _Py_interp_static_objects { 92 struct { 93 int _not_used; 94 // hamt_empty is here instead of global because of its weakreflist. 95 _PyGC_Head_UNUSED _hamt_empty_gc_not_used; 96 PyHamtObject hamt_empty; 97 PyBaseExceptionObject last_resort_memory_error; 98 } singletons; 99 }; 100 101 102 #ifdef __cplusplus 103 } 104 #endif 105 #endif /* !Py_INTERNAL_GLOBAL_OBJECTS_H */ 106